ext2fs_vnops.c revision 1.117.2.1
1 /* $NetBSD: ext2fs_vnops.c,v 1.117.2.1 2016/08/06 00:19:11 pgoyette 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 1.117.2.1 2016/08/06 00:19:11 pgoyette Exp $"); 69 70 #include <sys/param.h> 71 #include <sys/systm.h> 72 #include <sys/resourcevar.h> 73 #include <sys/kernel.h> 74 #include <sys/file.h> 75 #include <sys/stat.h> 76 #include <sys/buf.h> 77 #include <sys/proc.h> 78 #include <sys/mount.h> 79 #include <sys/namei.h> 80 #include <sys/vnode.h> 81 #include <sys/lockf.h> 82 #include <sys/pool.h> 83 #include <sys/signalvar.h> 84 #include <sys/kauth.h> 85 86 #include <miscfs/fifofs/fifo.h> 87 #include <miscfs/genfs/genfs.h> 88 #include <miscfs/specfs/specdev.h> 89 90 #include <ufs/ufs/inode.h> 91 #include <ufs/ufs/ufs_extern.h> 92 #include <ufs/ufs/ufsmount.h> 93 94 #include <ufs/ext2fs/ext2fs.h> 95 #include <ufs/ext2fs/ext2fs_extern.h> 96 #include <ufs/ext2fs/ext2fs_dir.h> 97 98 extern int prtactive; 99 100 static int ext2fs_chmod(struct vnode *, int, kauth_cred_t, struct lwp *); 101 static int ext2fs_chown(struct vnode *, uid_t, gid_t, kauth_cred_t, 102 struct lwp *); 103 104 union _qcvt { 105 int64_t qcvt; 106 int32_t val[2]; 107 }; 108 109 #define SETHIGH(q, h) { \ 110 union _qcvt tmp; \ 111 tmp.qcvt = (q); \ 112 tmp.val[_QUAD_HIGHWORD] = (h); \ 113 (q) = tmp.qcvt; \ 114 } 115 #define SETLOW(q, l) { \ 116 union _qcvt tmp; \ 117 tmp.qcvt = (q); \ 118 tmp.val[_QUAD_LOWWORD] = (l); \ 119 (q) = tmp.qcvt; \ 120 } 121 122 /* 123 * Create a regular file 124 */ 125 int 126 ext2fs_create(void *v) 127 { 128 struct vop_create_v3_args /* { 129 struct vnode *a_dvp; 130 struct vnode **a_vpp; 131 struct componentname *a_cnp; 132 struct vattr *a_vap; 133 } */ *ap = v; 134 int error; 135 136 error = 137 ext2fs_makeinode(MAKEIMODE(ap->a_vap->va_type, ap->a_vap->va_mode), 138 ap->a_dvp, ap->a_vpp, ap->a_cnp); 139 140 if (error) 141 return (error); 142 VN_KNOTE(ap->a_dvp, NOTE_WRITE); 143 VOP_UNLOCK(*ap->a_vpp); 144 return (0); 145 } 146 147 /* 148 * Mknod vnode call 149 */ 150 /* ARGSUSED */ 151 int 152 ext2fs_mknod(void *v) 153 { 154 struct vop_mknod_v3_args /* { 155 struct vnode *a_dvp; 156 struct vnode **a_vpp; 157 struct componentname *a_cnp; 158 struct vattr *a_vap; 159 } */ *ap = v; 160 struct vattr *vap = ap->a_vap; 161 struct vnode **vpp = ap->a_vpp; 162 struct inode *ip; 163 int error; 164 struct mount *mp; 165 ino_t ino; 166 167 if ((error = ext2fs_makeinode(MAKEIMODE(vap->va_type, vap->va_mode), 168 ap->a_dvp, vpp, ap->a_cnp)) != 0) 169 return (error); 170 VN_KNOTE(ap->a_dvp, NOTE_WRITE); 171 ip = VTOI(*vpp); 172 mp = (*vpp)->v_mount; 173 ino = ip->i_number; 174 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE; 175 if (vap->va_rdev != VNOVAL) { 176 /* 177 * Want to be able to use this to make badblock 178 * inodes, so don't truncate the dev number. 179 */ 180 ip->i_din.e2fs_din->e2di_rdev = h2fs32(vap->va_rdev); 181 } 182 /* 183 * Remove inode so that it will be reloaded by vcache_get and 184 * checked to see if it is an alias of an existing entry in 185 * the inode cache. 186 */ 187 (*vpp)->v_type = VNON; 188 VOP_UNLOCK(*vpp); 189 vgone(*vpp); 190 error = vcache_get(mp, &ino, sizeof(ino), vpp); 191 if (error != 0) { 192 *vpp = NULL; 193 return (error); 194 } 195 return (0); 196 } 197 198 /* 199 * Open called. 200 * 201 * Just check the APPEND flag. 202 */ 203 /* ARGSUSED */ 204 int 205 ext2fs_open(void *v) 206 { 207 struct vop_open_args /* { 208 struct vnode *a_vp; 209 int a_mode; 210 kauth_cred_t a_cred; 211 } */ *ap = v; 212 213 /* 214 * Files marked append-only must be opened for appending. 215 */ 216 if ((VTOI(ap->a_vp)->i_e2fs_flags & EXT2_APPEND) && 217 (ap->a_mode & (FWRITE | O_APPEND)) == FWRITE) 218 return (EPERM); 219 return (0); 220 } 221 222 static int 223 ext2fs_check_possible(struct vnode *vp, struct inode *ip, mode_t mode) 224 { 225 226 /* 227 * Disallow write attempts on read-only file systems; 228 * unless the file is a socket, fifo, or a block or 229 * character device resident on the file system. 230 */ 231 if (mode & VWRITE) { 232 switch (vp->v_type) { 233 case VDIR: 234 case VLNK: 235 case VREG: 236 if (vp->v_mount->mnt_flag & MNT_RDONLY) 237 return (EROFS); 238 break; 239 default: 240 break; 241 } 242 } 243 244 /* If immutable bit set, nobody gets to write it. */ 245 if ((mode & VWRITE) && (ip->i_e2fs_flags & EXT2_IMMUTABLE)) 246 return (EPERM); 247 248 return 0; 249 } 250 251 static int 252 ext2fs_check_permitted(struct vnode *vp, struct inode *ip, mode_t mode, 253 kauth_cred_t cred) 254 { 255 256 return kauth_authorize_vnode(cred, KAUTH_ACCESS_ACTION(mode, vp->v_type, 257 ip->i_e2fs_mode & ALLPERMS), vp, NULL, genfs_can_access(vp->v_type, 258 ip->i_e2fs_mode & ALLPERMS, ip->i_uid, ip->i_gid, mode, cred)); 259 } 260 261 int 262 ext2fs_access(void *v) 263 { 264 struct vop_access_args /* { 265 struct vnode *a_vp; 266 int a_mode; 267 kauth_cred_t a_cred; 268 } */ *ap = v; 269 struct vnode *vp = ap->a_vp; 270 struct inode *ip = VTOI(vp); 271 mode_t mode = ap->a_mode; 272 int error; 273 274 error = ext2fs_check_possible(vp, ip, mode); 275 if (error) 276 return error; 277 278 error = ext2fs_check_permitted(vp, ip, mode, ap->a_cred); 279 280 return error; 281 } 282 283 /* ARGSUSED */ 284 int 285 ext2fs_getattr(void *v) 286 { 287 struct vop_getattr_args /* { 288 struct vnode *a_vp; 289 struct vattr *a_vap; 290 kauth_cred_t a_cred; 291 } */ *ap = v; 292 struct vnode *vp = ap->a_vp; 293 struct inode *ip = VTOI(vp); 294 struct vattr *vap = ap->a_vap; 295 296 EXT2FS_ITIMES(ip, NULL, NULL, NULL); 297 /* 298 * Copy from inode table 299 */ 300 vap->va_fsid = ip->i_dev; 301 vap->va_fileid = ip->i_number; 302 vap->va_mode = ip->i_e2fs_mode & ALLPERMS; 303 vap->va_nlink = ip->i_e2fs_nlink; 304 vap->va_uid = ip->i_uid; 305 vap->va_gid = ip->i_gid; 306 vap->va_rdev = (dev_t)fs2h32(ip->i_din.e2fs_din->e2di_rdev); 307 vap->va_size = vp->v_size; 308 EXT2_DINODE_TIME_GET(&vap->va_atime, ip->i_din.e2fs_din, e2di_atime, EXT2_DINODE_SIZE(ip->i_e2fs)); 309 EXT2_DINODE_TIME_GET(&vap->va_mtime, ip->i_din.e2fs_din, e2di_mtime, EXT2_DINODE_SIZE(ip->i_e2fs)); 310 EXT2_DINODE_TIME_GET(&vap->va_ctime, ip->i_din.e2fs_din, e2di_ctime, EXT2_DINODE_SIZE(ip->i_e2fs)); 311 if (EXT2_DINODE_FITS(ip->i_din.e2fs_din, e2di_crtime, EXT2_DINODE_SIZE(ip->i_e2fs))) { 312 EXT2_DINODE_TIME_GET(&vap->va_birthtime, ip->i_din.e2fs_din, e2di_crtime, EXT2_DINODE_SIZE(ip->i_e2fs)); 313 } 314 315 vap->va_flags = 0; 316 vap->va_flags |= (ip->i_e2fs_flags & EXT2_NODUMP) ? UF_NODUMP : 0; 317 #ifdef EXT2FS_SYSTEM_FLAGS 318 vap->va_flags |= (ip->i_e2fs_flags & EXT2_IMMUTABLE) ? SF_IMMUTABLE : 0; 319 vap->va_flags |= (ip->i_e2fs_flags & EXT2_APPEND) ? SF_APPEND : 0; 320 #else 321 vap->va_flags |= (ip->i_e2fs_flags & EXT2_IMMUTABLE) ? UF_IMMUTABLE : 0; 322 vap->va_flags |= (ip->i_e2fs_flags & EXT2_APPEND) ? UF_APPEND : 0; 323 #endif 324 325 vap->va_gen = ip->i_e2fs_gen; 326 /* this doesn't belong here */ 327 if (vp->v_type == VBLK) 328 vap->va_blocksize = BLKDEV_IOSIZE; 329 else if (vp->v_type == VCHR) 330 vap->va_blocksize = MAXBSIZE; 331 else 332 vap->va_blocksize = vp->v_mount->mnt_stat.f_iosize; 333 vap->va_bytes = dbtob(ext2fs_nblock(ip)); 334 vap->va_type = vp->v_type; 335 vap->va_filerev = ip->i_modrev; 336 return (0); 337 } 338 339 /* 340 * Set attribute vnode op. called from several syscalls 341 */ 342 int 343 ext2fs_setattr(void *v) 344 { 345 struct vop_setattr_args /* { 346 struct vnode *a_vp; 347 struct vattr *a_vap; 348 kauth_cred_t a_cred; 349 } */ *ap = v; 350 struct vattr *vap = ap->a_vap; 351 struct vnode *vp = ap->a_vp; 352 struct inode *ip = VTOI(vp); 353 kauth_cred_t cred = ap->a_cred; 354 struct lwp *l = curlwp; 355 int error; 356 kauth_action_t action = KAUTH_VNODE_WRITE_FLAGS; 357 bool changing_sysflags = false; 358 359 /* 360 * Check for unsettable attributes. 361 */ 362 if ((vap->va_type != VNON) || (vap->va_nlink != (nlink_t)VNOVAL) || 363 (vap->va_fsid != VNOVAL) || (vap->va_fileid != VNOVAL) || 364 (vap->va_blocksize != VNOVAL) || (vap->va_rdev != VNOVAL) || 365 ((int)vap->va_bytes != VNOVAL) || (vap->va_gen != VNOVAL)) { 366 return (EINVAL); 367 } 368 if (vap->va_flags != VNOVAL) { 369 if (vp->v_mount->mnt_flag & MNT_RDONLY) 370 return (EROFS); 371 372 /* 373 * Check if we're allowed to change the flags. 374 * If EXT2FS_SYSTEM_FLAGS is set, then the flags are treated 375 * as system flags, otherwise they're considered to be user 376 * flags. 377 */ 378 #ifdef EXT2FS_SYSTEM_FLAGS 379 /* Indicate we're changing system flags if we are. */ 380 if ((vap->va_flags & SF_APPEND) || 381 (vap->va_flags & SF_IMMUTABLE)) { 382 action |= KAUTH_VNODE_WRITE_SYSFLAGS; 383 changing_sysflags = true; 384 } 385 386 /* Indicate the node has system flags if it does. */ 387 if (ip->i_e2fs_flags & (EXT2_APPEND | EXT2_IMMUTABLE)) { 388 action |= KAUTH_VNODE_HAS_SYSFLAGS; 389 } 390 #endif /* EXT2FS_SYSTEM_FLAGS */ 391 392 error = kauth_authorize_vnode(cred, action, vp, NULL, 393 genfs_can_chflags(cred, vp->v_type, ip->i_uid, 394 changing_sysflags)); 395 if (error) 396 return (error); 397 398 ip->i_e2fs_flags &= ~(EXT2_APPEND | EXT2_IMMUTABLE | EXT2_NODUMP); 399 #ifdef EXT2FS_SYSTEM_FLAGS 400 ip->i_e2fs_flags |= 401 (vap->va_flags & SF_APPEND) ? EXT2_APPEND : 0 | 402 (vap->va_flags & SF_IMMUTABLE) ? EXT2_IMMUTABLE : 0; 403 #else 404 ip->i_e2fs_flags |= 405 (vap->va_flags & UF_APPEND) ? EXT2_APPEND : 0 | 406 (vap->va_flags & UF_IMMUTABLE) ? EXT2_IMMUTABLE : 0; 407 #endif 408 ip->i_e2fs_flags |= 409 (vap->va_flags & UF_NODUMP) ? EXT2_NODUMP : 0; 410 ip->i_flag |= IN_CHANGE; 411 if (vap->va_flags & (IMMUTABLE | APPEND)) 412 return (0); 413 } 414 if (ip->i_e2fs_flags & (EXT2_APPEND | EXT2_IMMUTABLE)) 415 return (EPERM); 416 /* 417 * Go through the fields and update iff not VNOVAL. 418 */ 419 if (vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL) { 420 if (vp->v_mount->mnt_flag & MNT_RDONLY) 421 return (EROFS); 422 error = ext2fs_chown(vp, vap->va_uid, vap->va_gid, cred, l); 423 if (error) 424 return (error); 425 } 426 if (vap->va_size != VNOVAL) { 427 /* 428 * Disallow write attempts on read-only file systems; 429 * unless the file is a socket, fifo, or a block or 430 * character device resident on the file system. 431 */ 432 switch (vp->v_type) { 433 case VDIR: 434 return (EISDIR); 435 case VLNK: 436 case VREG: 437 if (vp->v_mount->mnt_flag & MNT_RDONLY) 438 return (EROFS); 439 default: 440 break; 441 } 442 error = ext2fs_truncate(vp, vap->va_size, 0, cred); 443 if (error) 444 return (error); 445 } 446 ip = VTOI(vp); 447 if (vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL || vap->va_birthtime.tv_sec != VNOVAL) { 448 if (vp->v_mount->mnt_flag & MNT_RDONLY) 449 return (EROFS); 450 error = kauth_authorize_vnode(cred, KAUTH_VNODE_WRITE_TIMES, vp, 451 NULL, genfs_can_chtimes(vp, vap->va_vaflags, ip->i_uid, 452 cred)); 453 if (error) 454 return (error); 455 if (vap->va_atime.tv_sec != VNOVAL) 456 if (!(vp->v_mount->mnt_flag & MNT_NOATIME)) 457 ip->i_flag |= IN_ACCESS; 458 if (vap->va_mtime.tv_sec != VNOVAL) { 459 ip->i_flag |= IN_CHANGE | IN_UPDATE; 460 if (vp->v_mount->mnt_flag & MNT_RELATIME) 461 ip->i_flag |= IN_ACCESS; 462 } 463 if (vap->va_birthtime.tv_sec != VNOVAL && 464 EXT2_DINODE_FITS(ip->i_din.e2fs_din, e2di_crtime, EXT2_DINODE_SIZE(ip->i_e2fs))) { 465 466 EXT2_DINODE_TIME_SET(&vap->va_birthtime, ip->i_din.e2fs_din, e2di_crtime, EXT2_DINODE_SIZE(ip->i_e2fs)); 467 } 468 error = ext2fs_update(vp, &vap->va_atime, &vap->va_mtime, 469 UPDATE_WAIT); 470 if (error) 471 return (error); 472 } 473 error = 0; 474 if (vap->va_mode != (mode_t)VNOVAL) { 475 if (vp->v_mount->mnt_flag & MNT_RDONLY) 476 return (EROFS); 477 error = ext2fs_chmod(vp, (int)vap->va_mode, cred, l); 478 } 479 VN_KNOTE(vp, NOTE_ATTRIB); 480 return (error); 481 } 482 483 /* 484 * Change the mode on a file. 485 * Inode must be locked before calling. 486 */ 487 static int 488 ext2fs_chmod(struct vnode *vp, int mode, kauth_cred_t cred, struct lwp *l) 489 { 490 struct inode *ip = VTOI(vp); 491 int error; 492 493 error = kauth_authorize_vnode(cred, KAUTH_VNODE_WRITE_SECURITY, vp, 494 NULL, genfs_can_chmod(vp->v_type, cred, ip->i_uid, ip->i_gid, 495 mode)); 496 if (error) 497 return (error); 498 499 ip->i_e2fs_mode &= ~ALLPERMS; 500 ip->i_e2fs_mode |= (mode & ALLPERMS); 501 ip->i_flag |= IN_CHANGE; 502 return (0); 503 } 504 505 /* 506 * Perform chown operation on inode ip; 507 * inode must be locked prior to call. 508 */ 509 static int 510 ext2fs_chown(struct vnode *vp, uid_t uid, gid_t gid, kauth_cred_t cred, 511 struct lwp *l) 512 { 513 struct inode *ip = VTOI(vp); 514 uid_t ouid; 515 gid_t ogid; 516 int error; 517 518 if (uid == (uid_t)VNOVAL) 519 uid = ip->i_uid; 520 if (gid == (gid_t)VNOVAL) 521 gid = ip->i_gid; 522 523 error = kauth_authorize_vnode(cred, KAUTH_VNODE_CHANGE_OWNERSHIP, vp, 524 NULL, genfs_can_chown(cred, ip->i_uid, ip->i_gid, uid, gid)); 525 if (error) 526 return (error); 527 528 ogid = ip->i_gid; 529 ouid = ip->i_uid; 530 531 ip->i_e2fs_gid = gid & 0xffff; 532 ip->i_e2fs_uid = uid & 0xffff; 533 if (ip->i_e2fs->e2fs.e2fs_rev > E2FS_REV0) { 534 ip->i_e2fs_gid_high = (gid >> 16) & 0xffff; 535 ip->i_e2fs_uid_high = (uid >> 16) & 0xffff; 536 } else { 537 ip->i_e2fs_gid_high = 0; 538 ip->i_e2fs_uid_high = 0; 539 } 540 if (ouid != uid || ogid != gid) { 541 ext2fs_set_inode_guid(ip); 542 ip->i_flag |= IN_CHANGE; 543 } 544 if (ouid != uid && (ip->i_e2fs_mode & ISUID) && 545 kauth_authorize_vnode(cred, KAUTH_VNODE_RETAIN_SUID, 546 vp, NULL, EPERM) != 0) 547 ip->i_e2fs_mode &= ~ISUID; 548 if (ogid != gid && (ip->i_e2fs_mode & ISGID) && 549 kauth_authorize_vnode(cred, KAUTH_VNODE_RETAIN_SGID, 550 vp, NULL, EPERM) != 0) 551 ip->i_e2fs_mode &= ~ISGID; 552 return (0); 553 } 554 555 int 556 ext2fs_remove(void *v) 557 { 558 struct vop_remove_args /* { 559 struct vnode *a_dvp; 560 struct vnode *a_vp; 561 struct componentname *a_cnp; 562 } */ *ap = v; 563 struct inode *ip; 564 struct vnode *vp = ap->a_vp; 565 struct vnode *dvp = ap->a_dvp; 566 struct ufs_lookup_results *ulr; 567 int error; 568 569 /* XXX should handle this material another way */ 570 ulr = &VTOI(dvp)->i_crap; 571 UFS_CHECK_CRAPCOUNTER(VTOI(dvp)); 572 573 ip = VTOI(vp); 574 if (vp->v_type == VDIR || 575 (ip->i_e2fs_flags & (EXT2_IMMUTABLE | EXT2_APPEND)) || 576 (VTOI(dvp)->i_e2fs_flags & EXT2_APPEND)) { 577 error = EPERM; 578 } else { 579 error = ext2fs_dirremove(dvp, ulr, ap->a_cnp); 580 if (error == 0) { 581 ip->i_e2fs_nlink--; 582 ip->i_flag |= IN_CHANGE; 583 } 584 } 585 586 VN_KNOTE(vp, NOTE_DELETE); 587 VN_KNOTE(dvp, NOTE_WRITE); 588 if (dvp == vp) 589 vrele(vp); 590 else 591 vput(vp); 592 vput(dvp); 593 return (error); 594 } 595 596 /* 597 * ext2fs_link: create hard link. 598 */ 599 int 600 ext2fs_link(void *v) 601 { 602 struct vop_link_v2_args /* { 603 struct vnode *a_dvp; 604 struct vnode *a_vp; 605 struct componentname *a_cnp; 606 } */ *ap = v; 607 struct vnode *dvp = ap->a_dvp; 608 struct vnode *vp = ap->a_vp; 609 struct componentname *cnp = ap->a_cnp; 610 struct inode *ip; 611 int error; 612 struct ufs_lookup_results *ulr; 613 614 KASSERT(dvp != vp); 615 KASSERT(vp->v_type != VDIR); 616 KASSERT(dvp->v_mount == vp->v_mount); 617 618 /* XXX should handle this material another way */ 619 ulr = &VTOI(dvp)->i_crap; 620 UFS_CHECK_CRAPCOUNTER(VTOI(dvp)); 621 622 error = vn_lock(vp, LK_EXCLUSIVE); 623 if (error) { 624 VOP_ABORTOP(dvp, cnp); 625 goto out2; 626 } 627 ip = VTOI(vp); 628 if ((nlink_t)ip->i_e2fs_nlink >= LINK_MAX) { 629 VOP_ABORTOP(dvp, cnp); 630 error = EMLINK; 631 goto out1; 632 } 633 if (ip->i_e2fs_flags & (EXT2_IMMUTABLE | EXT2_APPEND)) { 634 VOP_ABORTOP(dvp, cnp); 635 error = EPERM; 636 goto out1; 637 } 638 ip->i_e2fs_nlink++; 639 ip->i_flag |= IN_CHANGE; 640 error = ext2fs_update(vp, NULL, NULL, UPDATE_WAIT); 641 if (!error) 642 error = ext2fs_direnter(ip, dvp, ulr, cnp); 643 if (error) { 644 ip->i_e2fs_nlink--; 645 ip->i_flag |= IN_CHANGE; 646 } 647 out1: 648 VOP_UNLOCK(vp); 649 out2: 650 VN_KNOTE(vp, NOTE_LINK); 651 VN_KNOTE(dvp, NOTE_WRITE); 652 return (error); 653 } 654 655 /* 656 * Mkdir system call 657 */ 658 int 659 ext2fs_mkdir(void *v) 660 { 661 struct vop_mkdir_v3_args /* { 662 struct vnode *a_dvp; 663 struct vnode **a_vpp; 664 struct componentname *a_cnp; 665 struct vattr *a_vap; 666 } */ *ap = v; 667 struct vnode *dvp = ap->a_dvp; 668 struct vattr *vap = ap->a_vap; 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, dmode; 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 if ((nlink_t)dp->i_e2fs_nlink >= LINK_MAX) { 681 error = EMLINK; 682 goto out; 683 } 684 dmode = vap->va_mode & ACCESSPERMS; 685 dmode |= IFDIR; 686 /* 687 * Must simulate part of ext2fs_makeinode here to acquire the inode, 688 * but not have it entered in the parent directory. The entry is 689 * made later after writing "." and ".." entries. 690 */ 691 if ((error = ext2fs_valloc(dvp, dmode, cnp->cn_cred, &tvp)) != 0) 692 goto out; 693 ip = VTOI(tvp); 694 ip->i_uid = kauth_cred_geteuid(cnp->cn_cred); 695 ip->i_e2fs_uid = ip->i_uid & 0xffff; 696 ip->i_e2fs_gid = dp->i_e2fs_gid; 697 if (ip->i_e2fs->e2fs.e2fs_rev > E2FS_REV0) { 698 ip->i_e2fs_uid_high = (ip->i_uid >> 16) & 0xffff; 699 ip->i_e2fs_gid_high = dp->i_e2fs_gid_high; 700 } else { 701 ip->i_e2fs_uid_high = 0; 702 ip->i_e2fs_gid_high = 0; 703 } 704 ip->i_gid = ip->i_e2fs_gid | (ip->i_e2fs_gid_high << 16); 705 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE; 706 ip->i_e2fs_mode = dmode; 707 tvp->v_type = VDIR; /* Rest init'd in getnewvnode(). */ 708 ip->i_e2fs_nlink = 2; 709 710 /* 711 * Bump link count in parent directory 712 * to reflect work done below. Should 713 * be done before reference is created 714 * so reparation is possible if we crash. 715 */ 716 dp->i_e2fs_nlink++; 717 dp->i_flag |= IN_CHANGE; 718 if ((error = ext2fs_update(dvp, NULL, NULL, UPDATE_DIROP)) != 0) 719 goto bad; 720 721 /* Initialize directory with "." and ".." from static template. */ 722 memset(&dirtemplate, 0, sizeof(dirtemplate)); 723 dirtemplate.dot_ino = h2fs32(ip->i_number); 724 dirtemplate.dot_reclen = h2fs16(12); 725 dirtemplate.dot_namlen = 1; 726 if (ip->i_e2fs->e2fs.e2fs_rev > E2FS_REV0 && 727 (ip->i_e2fs->e2fs.e2fs_features_incompat & EXT2F_INCOMPAT_FTYPE)) { 728 dirtemplate.dot_type = EXT2_FT_DIR; 729 } 730 dirtemplate.dot_name[0] = '.'; 731 dirtemplate.dotdot_ino = h2fs32(dp->i_number); 732 dirtemplate.dotdot_reclen = h2fs16(VTOI(dvp)->i_e2fs->e2fs_bsize - 12); 733 dirtemplate.dotdot_namlen = 2; 734 if (ip->i_e2fs->e2fs.e2fs_rev > E2FS_REV0 && 735 (ip->i_e2fs->e2fs.e2fs_features_incompat & EXT2F_INCOMPAT_FTYPE)) { 736 dirtemplate.dotdot_type = EXT2_FT_DIR; 737 } 738 dirtemplate.dotdot_name[0] = dirtemplate.dotdot_name[1] = '.'; 739 error = ufs_bufio(UIO_WRITE, tvp, (void *)&dirtemplate, 740 sizeof (dirtemplate), (off_t)0, IO_NODELOCKED|IO_SYNC, 741 cnp->cn_cred, (size_t *)0, NULL); 742 if (error) { 743 dp->i_e2fs_nlink--; 744 dp->i_flag |= IN_CHANGE; 745 goto bad; 746 } 747 if (VTOI(dvp)->i_e2fs->e2fs_bsize > dvp->v_mount->mnt_stat.f_bsize) 748 panic("ext2fs_mkdir: blksize"); /* XXX should grow with balloc() */ 749 else { 750 error = ext2fs_setsize(ip, VTOI(dvp)->i_e2fs->e2fs_bsize); 751 if (error) { 752 dp->i_e2fs_nlink--; 753 dp->i_flag |= IN_CHANGE; 754 goto bad; 755 } 756 ip->i_flag |= IN_CHANGE; 757 uvm_vnp_setsize(tvp, ext2fs_size(ip)); 758 } 759 760 /* Directory set up, now install its entry in the parent directory. */ 761 error = ext2fs_direnter(ip, dvp, ulr, cnp); 762 if (error != 0) { 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 || 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 dp->i_e2fs_nlink--; 844 dp->i_flag |= IN_CHANGE; 845 VN_KNOTE(dvp, NOTE_WRITE | NOTE_LINK); 846 cache_purge(dvp); 847 vput(dvp); 848 dvp = NULL; 849 /* 850 * Truncate inode. The only stuff left 851 * in the directory is "." and "..". The 852 * "." reference is inconsequential since 853 * we're quashing it. The ".." reference 854 * has already been adjusted above. We've 855 * removed the "." reference and the reference 856 * in the parent directory, but there may be 857 * other hard links so decrement by 2 and 858 * worry about them later. 859 */ 860 ip->i_e2fs_nlink -= 2; 861 error = ext2fs_truncate(vp, (off_t)0, IO_SYNC, cnp->cn_cred); 862 cache_purge(ITOV(ip)); 863 out: 864 VN_KNOTE(vp, NOTE_DELETE); 865 if (dvp) 866 vput(dvp); 867 vput(vp); 868 return (error); 869 } 870 871 /* 872 * symlink -- make a symbolic link 873 */ 874 int 875 ext2fs_symlink(void *v) 876 { 877 struct vop_symlink_v3_args /* { 878 struct vnode *a_dvp; 879 struct vnode **a_vpp; 880 struct componentname *a_cnp; 881 struct vattr *a_vap; 882 char *a_target; 883 } */ *ap = v; 884 struct vnode *vp, **vpp; 885 struct inode *ip; 886 int len, error; 887 888 vpp = ap->a_vpp; 889 error = ext2fs_makeinode(IFLNK | ap->a_vap->va_mode, ap->a_dvp, 890 vpp, ap->a_cnp); 891 if (error) 892 return (error); 893 VN_KNOTE(ap->a_dvp, NOTE_WRITE); 894 vp = *vpp; 895 len = strlen(ap->a_target); 896 ip = VTOI(vp); 897 if (len < ip->i_ump->um_maxsymlinklen) { 898 memcpy((char *)ip->i_din.e2fs_din->e2di_shortlink, ap->a_target, len); 899 error = ext2fs_setsize(ip, len); 900 if (error) 901 goto bad; 902 ip->i_flag |= IN_CHANGE | IN_UPDATE; 903 if (vp->v_mount->mnt_flag & MNT_RELATIME) 904 ip->i_flag |= IN_ACCESS; 905 uvm_vnp_setsize(vp, len); 906 } else 907 error = ufs_bufio(UIO_WRITE, vp, ap->a_target, len, (off_t)0, 908 IO_NODELOCKED, ap->a_cnp->cn_cred, (size_t *)0, NULL); 909 bad: 910 VOP_UNLOCK(vp); 911 if (error) 912 vrele(vp); 913 return (error); 914 } 915 916 /* 917 * Return target name of a symbolic link 918 */ 919 int 920 ext2fs_readlink(void *v) 921 { 922 struct vop_readlink_args /* { 923 struct vnode *a_vp; 924 struct uio *a_uio; 925 kauth_cred_t a_cred; 926 } */ *ap = v; 927 struct vnode *vp = ap->a_vp; 928 struct inode *ip = VTOI(vp); 929 struct ufsmount *ump = ip->i_ump; 930 int isize; 931 932 isize = ext2fs_size(ip); 933 if (isize < ump->um_maxsymlinklen || 934 (ump->um_maxsymlinklen == 0 && ext2fs_nblock(ip) == 0)) { 935 uiomove((char *)ip->i_din.e2fs_din->e2di_shortlink, isize, ap->a_uio); 936 return (0); 937 } 938 return (UFS_BUFRD(vp, ap->a_uio, 0, ap->a_cred)); 939 } 940 941 /* 942 * Advisory record locking support 943 */ 944 int 945 ext2fs_advlock(void *v) 946 { 947 struct vop_advlock_args /* { 948 struct vnode *a_vp; 949 void * a_id; 950 int a_op; 951 struct flock *a_fl; 952 int a_flags; 953 } */ *ap = v; 954 struct inode *ip = VTOI(ap->a_vp); 955 956 return lf_advlock(ap, &ip->i_lockf, ext2fs_size(ip)); 957 } 958 959 int 960 ext2fs_fsync(void *v) 961 { 962 struct vop_fsync_args /* { 963 struct vnode *a_vp; 964 kauth_cred_t a_cred; 965 int a_flags; 966 off_t offlo; 967 off_t offhi; 968 struct proc *a_p; 969 } */ *ap = v; 970 struct vnode *vp = ap->a_vp; 971 int wait; 972 int error; 973 974 wait = (ap->a_flags & FSYNC_WAIT) != 0; 975 976 if (vp->v_type == VBLK) 977 error = spec_fsync(v); 978 else 979 error = vflushbuf(vp, ap->a_flags); 980 if (error == 0 && (ap->a_flags & FSYNC_DATAONLY) == 0) 981 error = ext2fs_update(vp, NULL, NULL, wait ? UPDATE_WAIT : 0); 982 983 if (error == 0 && ap->a_flags & FSYNC_CACHE) { 984 int l = 0; 985 error = VOP_IOCTL(VTOI(vp)->i_devvp, DIOCCACHESYNC, &l, FWRITE, 986 curlwp->l_cred); 987 } 988 989 return error; 990 } 991 992 /* 993 * Initialize the vnode associated with a new inode, handle aliased 994 * vnodes. 995 */ 996 int 997 ext2fs_vinit(struct mount *mntp, int (**specops)(void *), 998 int (**fifoops)(void *), struct vnode **vpp) 999 { 1000 struct timeval tv; 1001 struct inode *ip; 1002 struct vnode *vp; 1003 1004 vp = *vpp; 1005 ip = VTOI(vp); 1006 switch(vp->v_type = IFTOVT(ip->i_e2fs_mode)) { 1007 case VCHR: 1008 case VBLK: 1009 vp->v_op = specops; 1010 spec_node_init(vp, fs2h32(ip->i_din.e2fs_din->e2di_rdev)); 1011 break; 1012 case VFIFO: 1013 vp->v_op = fifoops; 1014 break; 1015 case VNON: 1016 case VBAD: 1017 case VSOCK: 1018 case VLNK: 1019 case VDIR: 1020 case VREG: 1021 break; 1022 } 1023 if (ip->i_number == UFS_ROOTINO) 1024 vp->v_vflag |= VV_ROOT; 1025 /* 1026 * Initialize modrev times 1027 */ 1028 getmicrouptime(&tv); 1029 SETHIGH(ip->i_modrev, tv.tv_sec); 1030 SETLOW(ip->i_modrev, tv.tv_usec * 4294); 1031 *vpp = vp; 1032 return (0); 1033 } 1034 1035 /* 1036 * Allocate a new inode. 1037 */ 1038 int 1039 ext2fs_makeinode(int mode, struct vnode *dvp, struct vnode **vpp, 1040 struct componentname *cnp) 1041 { 1042 struct inode *ip, *pdir; 1043 struct vnode *tvp; 1044 int error; 1045 struct ufs_lookup_results *ulr; 1046 1047 pdir = VTOI(dvp); 1048 1049 /* XXX should handle this material another way */ 1050 ulr = &pdir->i_crap; 1051 UFS_CHECK_CRAPCOUNTER(pdir); 1052 1053 *vpp = NULL; 1054 if ((mode & IFMT) == 0) 1055 mode |= IFREG; 1056 1057 if ((error = ext2fs_valloc(dvp, mode, cnp->cn_cred, &tvp)) != 0) { 1058 return (error); 1059 } 1060 ip = VTOI(tvp); 1061 ip->i_uid = kauth_cred_geteuid(cnp->cn_cred); 1062 ip->i_e2fs_uid = ip->i_uid & 0xffff; 1063 ip->i_e2fs_gid = pdir->i_e2fs_gid; 1064 if (ip->i_e2fs->e2fs.e2fs_rev > E2FS_REV0) { 1065 ip->i_e2fs_uid_high = (ip->i_uid >> 16) & 0xffff; 1066 ip->i_e2fs_gid_high = pdir->i_e2fs_gid_high; 1067 } else { 1068 ip->i_e2fs_uid_high = 0; 1069 ip->i_e2fs_gid_high = 0; 1070 } 1071 ip->i_gid = ip->i_e2fs_gid | (ip->i_e2fs_gid_high << 16); 1072 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE; 1073 ip->i_e2fs_mode = mode; 1074 tvp->v_type = IFTOVT(mode); /* Rest init'd in getnewvnode(). */ 1075 ip->i_e2fs_nlink = 1; 1076 1077 /* Authorize setting SGID if needed. */ 1078 if (ip->i_e2fs_mode & ISGID) { 1079 error = kauth_authorize_vnode(cnp->cn_cred, KAUTH_VNODE_WRITE_SECURITY, 1080 tvp, NULL, genfs_can_chmod(tvp->v_type, cnp->cn_cred, ip->i_uid, 1081 ip->i_gid, mode)); 1082 if (error) 1083 ip->i_e2fs_mode &= ~ISGID; 1084 } 1085 1086 /* 1087 * Make sure inode goes to disk before directory entry. 1088 */ 1089 if ((error = ext2fs_update(tvp, NULL, NULL, UPDATE_WAIT)) != 0) 1090 goto bad; 1091 error = ext2fs_direnter(ip, dvp, ulr, cnp); 1092 if (error != 0) 1093 goto bad; 1094 *vpp = tvp; 1095 return (0); 1096 1097 bad: 1098 /* 1099 * Write error occurred trying to update the inode 1100 * or the directory so must deallocate the inode. 1101 */ 1102 tvp->v_type = VNON; /* Stop explosion if VBLK */ 1103 ip->i_e2fs_nlink = 0; 1104 ip->i_flag |= IN_CHANGE; 1105 vput(tvp); 1106 return (error); 1107 } 1108 1109 /* 1110 * Reclaim an inode so that it can be used for other purposes. 1111 */ 1112 int 1113 ext2fs_reclaim(void *v) 1114 { 1115 struct vop_reclaim_args /* { 1116 struct vnode *a_vp; 1117 } */ *ap = v; 1118 struct vnode *vp = ap->a_vp; 1119 struct inode *ip = VTOI(vp); 1120 int error; 1121 1122 /* 1123 * The inode must be freed and updated before being removed 1124 * from its hash chain. Other threads trying to gain a hold 1125 * or lock on the inode will be stalled. 1126 */ 1127 if (ip->i_omode == 1 && (vp->v_mount->mnt_flag & MNT_RDONLY) == 0) 1128 ext2fs_vfree(vp, ip->i_number, ip->i_e2fs_mode); 1129 if ((error = ufs_reclaim(vp)) != 0) 1130 return (error); 1131 if (ip->i_din.e2fs_din != NULL) 1132 kmem_free(ip->i_din.e2fs_din, EXT2_DINODE_SIZE(ip->i_e2fs)); 1133 genfs_node_destroy(vp); 1134 pool_put(&ext2fs_inode_pool, vp->v_data); 1135 vp->v_data = NULL; 1136 return (0); 1137 } 1138 1139 /* Global vfs data structures for ext2fs. */ 1140 int (**ext2fs_vnodeop_p)(void *); 1141 const struct vnodeopv_entry_desc ext2fs_vnodeop_entries[] = { 1142 { &vop_default_desc, vn_default_error }, 1143 { &vop_lookup_desc, ext2fs_lookup }, /* lookup */ 1144 { &vop_create_desc, ext2fs_create }, /* create */ 1145 { &vop_mknod_desc, ext2fs_mknod }, /* mknod */ 1146 { &vop_open_desc, ext2fs_open }, /* open */ 1147 { &vop_close_desc, ufs_close }, /* close */ 1148 { &vop_access_desc, ext2fs_access }, /* access */ 1149 { &vop_getattr_desc, ext2fs_getattr }, /* getattr */ 1150 { &vop_setattr_desc, ext2fs_setattr }, /* setattr */ 1151 { &vop_read_desc, ext2fs_read }, /* read */ 1152 { &vop_write_desc, ext2fs_write }, /* write */ 1153 { &vop_fallocate_desc, genfs_eopnotsupp }, /* fallocate */ 1154 { &vop_fdiscard_desc, genfs_eopnotsupp }, /* fdiscard */ 1155 { &vop_ioctl_desc, ufs_ioctl }, /* ioctl */ 1156 { &vop_fcntl_desc, ufs_fcntl }, /* fcntl */ 1157 { &vop_poll_desc, ufs_poll }, /* poll */ 1158 { &vop_kqfilter_desc, genfs_kqfilter }, /* kqfilter */ 1159 { &vop_revoke_desc, ufs_revoke }, /* revoke */ 1160 { &vop_mmap_desc, ufs_mmap }, /* mmap */ 1161 { &vop_fsync_desc, ext2fs_fsync }, /* fsync */ 1162 { &vop_seek_desc, ufs_seek }, /* seek */ 1163 { &vop_remove_desc, ext2fs_remove }, /* remove */ 1164 { &vop_link_desc, ext2fs_link }, /* link */ 1165 { &vop_rename_desc, ext2fs_rename }, /* rename */ 1166 { &vop_mkdir_desc, ext2fs_mkdir }, /* mkdir */ 1167 { &vop_rmdir_desc, ext2fs_rmdir }, /* rmdir */ 1168 { &vop_symlink_desc, ext2fs_symlink }, /* symlink */ 1169 { &vop_readdir_desc, ext2fs_readdir }, /* readdir */ 1170 { &vop_readlink_desc, ext2fs_readlink }, /* readlink */ 1171 { &vop_abortop_desc, ufs_abortop }, /* abortop */ 1172 { &vop_inactive_desc, ext2fs_inactive }, /* inactive */ 1173 { &vop_reclaim_desc, ext2fs_reclaim }, /* reclaim */ 1174 { &vop_lock_desc, ufs_lock }, /* lock */ 1175 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 1176 { &vop_bmap_desc, ext2fs_bmap }, /* bmap */ 1177 { &vop_strategy_desc, ufs_strategy }, /* strategy */ 1178 { &vop_print_desc, ufs_print }, /* print */ 1179 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 1180 { &vop_pathconf_desc, ufs_pathconf }, /* pathconf */ 1181 { &vop_advlock_desc, ext2fs_advlock }, /* advlock */ 1182 { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ 1183 { &vop_getpages_desc, genfs_getpages }, /* getpages */ 1184 { &vop_putpages_desc, genfs_putpages }, /* putpages */ 1185 { NULL, NULL } 1186 }; 1187 const struct vnodeopv_desc ext2fs_vnodeop_opv_desc = 1188 { &ext2fs_vnodeop_p, ext2fs_vnodeop_entries }; 1189 1190 int (**ext2fs_specop_p)(void *); 1191 const struct vnodeopv_entry_desc ext2fs_specop_entries[] = { 1192 { &vop_default_desc, vn_default_error }, 1193 { &vop_lookup_desc, spec_lookup }, /* lookup */ 1194 { &vop_create_desc, spec_create }, /* create */ 1195 { &vop_mknod_desc, spec_mknod }, /* mknod */ 1196 { &vop_open_desc, spec_open }, /* open */ 1197 { &vop_close_desc, ufsspec_close }, /* close */ 1198 { &vop_access_desc, ext2fs_access }, /* access */ 1199 { &vop_getattr_desc, ext2fs_getattr }, /* getattr */ 1200 { &vop_setattr_desc, ext2fs_setattr }, /* setattr */ 1201 { &vop_read_desc, ufsspec_read }, /* read */ 1202 { &vop_write_desc, ufsspec_write }, /* write */ 1203 { &vop_fallocate_desc, spec_fallocate }, /* fallocate */ 1204 { &vop_fdiscard_desc, spec_fdiscard }, /* fdiscard */ 1205 { &vop_ioctl_desc, spec_ioctl }, /* ioctl */ 1206 { &vop_fcntl_desc, ufs_fcntl }, /* fcntl */ 1207 { &vop_poll_desc, spec_poll }, /* poll */ 1208 { &vop_kqfilter_desc, spec_kqfilter }, /* kqfilter */ 1209 { &vop_revoke_desc, spec_revoke }, /* revoke */ 1210 { &vop_mmap_desc, spec_mmap }, /* mmap */ 1211 { &vop_fsync_desc, ext2fs_fsync }, /* fsync */ 1212 { &vop_seek_desc, spec_seek }, /* seek */ 1213 { &vop_remove_desc, spec_remove }, /* remove */ 1214 { &vop_link_desc, spec_link }, /* link */ 1215 { &vop_rename_desc, spec_rename }, /* rename */ 1216 { &vop_mkdir_desc, spec_mkdir }, /* mkdir */ 1217 { &vop_rmdir_desc, spec_rmdir }, /* rmdir */ 1218 { &vop_symlink_desc, spec_symlink }, /* symlink */ 1219 { &vop_readdir_desc, spec_readdir }, /* readdir */ 1220 { &vop_readlink_desc, spec_readlink }, /* readlink */ 1221 { &vop_abortop_desc, spec_abortop }, /* abortop */ 1222 { &vop_inactive_desc, ext2fs_inactive }, /* inactive */ 1223 { &vop_reclaim_desc, ext2fs_reclaim }, /* reclaim */ 1224 { &vop_lock_desc, ufs_lock }, /* lock */ 1225 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 1226 { &vop_bmap_desc, spec_bmap }, /* bmap */ 1227 { &vop_strategy_desc, spec_strategy }, /* strategy */ 1228 { &vop_print_desc, ufs_print }, /* print */ 1229 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 1230 { &vop_pathconf_desc, spec_pathconf }, /* pathconf */ 1231 { &vop_advlock_desc, spec_advlock }, /* advlock */ 1232 { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ 1233 { &vop_getpages_desc, spec_getpages }, /* getpages */ 1234 { &vop_putpages_desc, spec_putpages }, /* putpages */ 1235 { NULL, NULL } 1236 }; 1237 const struct vnodeopv_desc ext2fs_specop_opv_desc = 1238 { &ext2fs_specop_p, ext2fs_specop_entries }; 1239 1240 int (**ext2fs_fifoop_p)(void *); 1241 const struct vnodeopv_entry_desc ext2fs_fifoop_entries[] = { 1242 { &vop_default_desc, vn_default_error }, 1243 { &vop_lookup_desc, vn_fifo_bypass }, /* lookup */ 1244 { &vop_create_desc, vn_fifo_bypass }, /* create */ 1245 { &vop_mknod_desc, vn_fifo_bypass }, /* mknod */ 1246 { &vop_open_desc, vn_fifo_bypass }, /* open */ 1247 { &vop_close_desc, ufsfifo_close }, /* close */ 1248 { &vop_access_desc, ext2fs_access }, /* access */ 1249 { &vop_getattr_desc, ext2fs_getattr }, /* getattr */ 1250 { &vop_setattr_desc, ext2fs_setattr }, /* setattr */ 1251 { &vop_read_desc, ufsfifo_read }, /* read */ 1252 { &vop_write_desc, ufsfifo_write }, /* write */ 1253 { &vop_fallocate_desc, vn_fifo_bypass }, /* fallocate */ 1254 { &vop_fdiscard_desc, vn_fifo_bypass }, /* fdiscard */ 1255 { &vop_ioctl_desc, vn_fifo_bypass }, /* ioctl */ 1256 { &vop_fcntl_desc, ufs_fcntl }, /* fcntl */ 1257 { &vop_poll_desc, vn_fifo_bypass }, /* poll */ 1258 { &vop_kqfilter_desc, vn_fifo_bypass }, /* kqfilter */ 1259 { &vop_revoke_desc, vn_fifo_bypass }, /* revoke */ 1260 { &vop_mmap_desc, vn_fifo_bypass }, /* mmap */ 1261 { &vop_fsync_desc, ext2fs_fsync }, /* fsync */ 1262 { &vop_seek_desc, vn_fifo_bypass }, /* seek */ 1263 { &vop_remove_desc, vn_fifo_bypass }, /* remove */ 1264 { &vop_link_desc, vn_fifo_bypass }, /* link */ 1265 { &vop_rename_desc, vn_fifo_bypass }, /* rename */ 1266 { &vop_mkdir_desc, vn_fifo_bypass }, /* mkdir */ 1267 { &vop_rmdir_desc, vn_fifo_bypass }, /* rmdir */ 1268 { &vop_symlink_desc, vn_fifo_bypass }, /* symlink */ 1269 { &vop_readdir_desc, vn_fifo_bypass }, /* readdir */ 1270 { &vop_readlink_desc, vn_fifo_bypass }, /* readlink */ 1271 { &vop_abortop_desc, vn_fifo_bypass }, /* abortop */ 1272 { &vop_inactive_desc, ext2fs_inactive }, /* inactive */ 1273 { &vop_reclaim_desc, ext2fs_reclaim }, /* reclaim */ 1274 { &vop_lock_desc, ufs_lock }, /* lock */ 1275 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 1276 { &vop_bmap_desc, vn_fifo_bypass }, /* bmap */ 1277 { &vop_strategy_desc, vn_fifo_bypass }, /* strategy */ 1278 { &vop_print_desc, ufs_print }, /* print */ 1279 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 1280 { &vop_pathconf_desc, vn_fifo_bypass }, /* pathconf */ 1281 { &vop_advlock_desc, vn_fifo_bypass }, /* advlock */ 1282 { &vop_bwrite_desc, vn_bwrite }, /* bwrite */ 1283 { &vop_putpages_desc, vn_fifo_bypass }, /* putpages */ 1284 { NULL, NULL } 1285 }; 1286 const struct vnodeopv_desc ext2fs_fifoop_opv_desc = 1287 { &ext2fs_fifoop_p, ext2fs_fifoop_entries }; 1288
Indexes created Wed Oct 22 13:09:56 GMT 2025