1 /* $OpenBSD: ext2fs_vnops.c,v 1.51 2008/06/09 23:38:37 millert Exp $ */ 2 /* $NetBSD: ext2fs_vnops.c,v 1.1 1997/06/11 09:34:09 bouyer Exp $ */ 3 4 /* 5 * Copyright (c) 1997 Manuel Bouyer. 6 * Copyright (c) 1982, 1986, 1989, 1993 7 * The Regents of the University of California. All rights reserved. 8 * (c) UNIX System Laboratories, Inc. 9 * All or some portions of this file are derived from material licensed 10 * to the University of California by American Telephone and Telegraph 11 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 12 * the permission of UNIX System Laboratories, Inc. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions 16 * are met: 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions and the following disclaimer. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in the 21 * documentation and/or other materials provided with the distribution. 22 * 3. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * @(#)ufs_vnops.c 8.14 (Berkeley) 10/26/94 39 * Modified for ext2fs by Manuel Bouyer. 40 */ 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/resourcevar.h> 45 #include <sys/kernel.h> 46 #include <sys/file.h> 47 #include <sys/stat.h> 48 #include <sys/buf.h> 49 #include <sys/proc.h> 50 #include <sys/conf.h> 51 #include <sys/mount.h> 52 #include <sys/namei.h> 53 #include <sys/vnode.h> 54 #include <sys/lockf.h> 55 #include <sys/malloc.h> 56 #include <sys/pool.h> 57 #include <sys/signalvar.h> 58 59 #include <uvm/uvm_extern.h> 60 61 #include <miscfs/fifofs/fifo.h> 62 #include <miscfs/specfs/specdev.h> 63 64 #include <ufs/ufs/quota.h> 65 #include <ufs/ufs/inode.h> 66 #include <ufs/ufs/ufs_extern.h> 67 #include <ufs/ufs/ufsmount.h> 68 69 #include <ufs/ext2fs/ext2fs.h> 70 #include <ufs/ext2fs/ext2fs_extern.h> 71 #include <ufs/ext2fs/ext2fs_dir.h> 72 73 static int ext2fs_chmod(struct vnode *, mode_t, struct ucred *, struct proc *); 74 static int ext2fs_chown(struct vnode *, uid_t, gid_t, struct ucred *, struct proc *); 75 76 /* 77 * Create a regular file 78 */ 79 int 80 ext2fs_create(void *v) 81 { 82 struct vop_create_args *ap = v; 83 return ext2fs_makeinode(MAKEIMODE(ap->a_vap->va_type, 84 ap->a_vap->va_mode), 85 ap->a_dvp, ap->a_vpp, ap->a_cnp); 86 } 87 88 /* 89 * Mknod vnode call 90 */ 91 /* ARGSUSED */ 92 int 93 ext2fs_mknod(void *v) 94 { 95 struct vop_mknod_args *ap = v; 96 struct vattr *vap = ap->a_vap; 97 struct vnode **vpp = ap->a_vpp; 98 struct inode *ip; 99 int error; 100 101 if ((error = 102 ext2fs_makeinode(MAKEIMODE(vap->va_type, vap->va_mode), 103 ap->a_dvp, vpp, ap->a_cnp)) != 0) 104 return (error); 105 ip = VTOI(*vpp); 106 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE; 107 if (vap->va_rdev != VNOVAL) { 108 /* 109 * Want to be able to use this to make badblock 110 * inodes, so don't truncate the dev number. 111 */ 112 ip->i_e2din->e2di_rdev = h2fs32(vap->va_rdev); 113 } 114 /* 115 * Remove inode so that it will be reloaded by VFS_VGET and 116 * checked to see if it is an alias of an existing entry in 117 * the inode cache. 118 */ 119 vput(*vpp); 120 (*vpp)->v_type = VNON; 121 vgone(*vpp); 122 *vpp = 0; 123 return (0); 124 } 125 126 /* 127 * Open called. 128 * 129 * Just check the APPEND flag. 130 */ 131 /* ARGSUSED */ 132 int 133 ext2fs_open(void *v) 134 { 135 struct vop_open_args *ap = v; 136 137 /* 138 * Files marked append-only must be opened for appending. 139 */ 140 if ((VTOI(ap->a_vp)->i_e2fs_flags & EXT2_APPEND) && 141 (ap->a_mode & (FWRITE | O_APPEND)) == FWRITE) 142 return (EPERM); 143 return (0); 144 } 145 146 int 147 ext2fs_access(void *v) 148 { 149 struct vop_access_args *ap = v; 150 struct vnode *vp = ap->a_vp; 151 struct inode *ip = VTOI(vp); 152 mode_t mode = ap->a_mode; 153 154 /* If immutable bit set, nobody gets to write it. */ 155 if ((mode & VWRITE) && (ip->i_e2fs_flags & EXT2_IMMUTABLE)) 156 return (EPERM); 157 158 return (vaccess(vp->v_type, ip->i_e2fs_mode, ip->i_e2fs_uid, 159 ip->i_e2fs_gid, mode, ap->a_cred)); 160 } 161 162 /* ARGSUSED */ 163 int 164 ext2fs_getattr(void *v) 165 { 166 struct vop_getattr_args *ap = v; 167 struct vnode *vp = ap->a_vp; 168 struct inode *ip = VTOI(vp); 169 struct vattr *vap = ap->a_vap; 170 struct timeval tv; 171 172 getmicrotime(&tv); 173 EXT2FS_ITIMES(ip, &tv, &tv); 174 /* 175 * Copy from inode table 176 */ 177 vap->va_fsid = ip->i_dev; 178 vap->va_fileid = ip->i_number; 179 vap->va_mode = ip->i_e2fs_mode & ALLPERMS; 180 vap->va_nlink = ip->i_e2fs_nlink; 181 vap->va_uid = ip->i_e2fs_uid; 182 vap->va_gid = ip->i_e2fs_gid; 183 vap->va_rdev = (dev_t)fs2h32(ip->i_e2din->e2di_rdev); 184 vap->va_size = ext2fs_size(ip); 185 vap->va_atime.tv_sec = ip->i_e2fs_atime; 186 vap->va_atime.tv_nsec = 0; 187 vap->va_mtime.tv_sec = ip->i_e2fs_mtime; 188 vap->va_mtime.tv_nsec = 0; 189 vap->va_ctime.tv_sec = ip->i_e2fs_ctime; 190 vap->va_ctime.tv_nsec = 0; 191 #ifdef EXT2FS_SYSTEM_FLAGS 192 vap->va_flags = (ip->i_e2fs_flags & EXT2_APPEND) ? SF_APPEND : 0; 193 vap->va_flags |= (ip->i_e2fs_flags & EXT2_IMMUTABLE) ? SF_IMMUTABLE : 0; 194 #else 195 vap->va_flags = (ip->i_e2fs_flags & EXT2_APPEND) ? UF_APPEND : 0; 196 vap->va_flags |= (ip->i_e2fs_flags & EXT2_IMMUTABLE) ? UF_IMMUTABLE : 0; 197 #endif 198 vap->va_gen = ip->i_e2fs_gen; 199 /* this doesn't belong here */ 200 if (vp->v_type == VBLK) 201 vap->va_blocksize = BLKDEV_IOSIZE; 202 else if (vp->v_type == VCHR) 203 vap->va_blocksize = MAXBSIZE; 204 else 205 vap->va_blocksize = vp->v_mount->mnt_stat.f_iosize; 206 vap->va_bytes = dbtob((u_quad_t)ip->i_e2fs_nblock); 207 vap->va_type = vp->v_type; 208 vap->va_filerev = ip->i_modrev; 209 return (0); 210 } 211 212 /* 213 * Set attribute vnode op. called from several syscalls 214 */ 215 int 216 ext2fs_setattr(void *v) 217 { 218 struct vop_setattr_args *ap = v; 219 struct vattr *vap = ap->a_vap; 220 struct vnode *vp = ap->a_vp; 221 struct inode *ip = VTOI(vp); 222 struct ucred *cred = ap->a_cred; 223 struct proc *p = ap->a_p; 224 int error; 225 226 /* 227 * Check for unsettable attributes. 228 */ 229 if ((vap->va_type != VNON) || (vap->va_nlink != VNOVAL) || 230 (vap->va_fsid != VNOVAL) || (vap->va_fileid != VNOVAL) || 231 (vap->va_blocksize != VNOVAL) || (vap->va_rdev != VNOVAL) || 232 ((int)vap->va_bytes != VNOVAL) || (vap->va_gen != VNOVAL)) { 233 return (EINVAL); 234 } 235 if (vap->va_flags != VNOVAL) { 236 if (vp->v_mount->mnt_flag & MNT_RDONLY) 237 return (EROFS); 238 if (cred->cr_uid != ip->i_e2fs_uid && 239 (error = suser_ucred(cred))) 240 return (error); 241 #ifdef EXT2FS_SYSTEM_FLAGS 242 if (cred->cr_uid == 0) { 243 if ((ip->i_e2fs_flags & 244 (EXT2_APPEND | EXT2_IMMUTABLE)) && securelevel > 0) 245 return (EPERM); 246 ip->i_e2fs_flags &= ~(EXT2_APPEND | EXT2_IMMUTABLE); 247 ip->i_e2fs_flags |= 248 (vap->va_flags & SF_APPEND) ? EXT2_APPEND : 0 | 249 (vap->va_flags & SF_IMMUTABLE) ? EXT2_IMMUTABLE: 0; 250 } else { 251 return (EPERM); 252 } 253 #else 254 ip->i_e2fs_flags &= ~(EXT2_APPEND | EXT2_IMMUTABLE); 255 ip->i_e2fs_flags |= 256 (vap->va_flags & UF_APPEND) ? EXT2_APPEND : 0 | 257 (vap->va_flags & UF_IMMUTABLE) ? EXT2_IMMUTABLE: 0; 258 #endif 259 ip->i_flag |= IN_CHANGE; 260 if (vap->va_flags & (IMMUTABLE | APPEND)) 261 return (0); 262 } 263 if (ip->i_e2fs_flags & (EXT2_APPEND | EXT2_IMMUTABLE)) 264 return (EPERM); 265 /* 266 * Go through the fields and update iff not VNOVAL. 267 */ 268 if (vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL) { 269 if (vp->v_mount->mnt_flag & MNT_RDONLY) 270 return (EROFS); 271 error = ext2fs_chown(vp, vap->va_uid, vap->va_gid, cred, p); 272 if (error) 273 return (error); 274 } 275 if (vap->va_size != VNOVAL) { 276 /* 277 * Disallow write attempts on read-only file systems; 278 * unless the file is a socket, fifo, or a block or 279 * character device resident on the file system. 280 */ 281 switch (vp->v_type) { 282 case VDIR: 283 return (EISDIR); 284 case VLNK: 285 case VREG: 286 if (vp->v_mount->mnt_flag & MNT_RDONLY) 287 return (EROFS); 288 default: 289 break; 290 } 291 error = ext2fs_truncate(ip, vap->va_size, 0, cred); 292 if (error) 293 return (error); 294 } 295 if (vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL) { 296 if (vp->v_mount->mnt_flag & MNT_RDONLY) 297 return (EROFS); 298 if (cred->cr_uid != ip->i_e2fs_uid && 299 (error = suser_ucred(cred)) && 300 ((vap->va_vaflags & VA_UTIMES_NULL) == 0 || 301 (error = VOP_ACCESS(vp, VWRITE, cred, p)))) 302 return (error); 303 if (vap->va_mtime.tv_sec != VNOVAL) 304 ip->i_flag |= IN_CHANGE | IN_UPDATE; 305 if (vap->va_atime.tv_sec != VNOVAL) { 306 if (!(vp->v_mount->mnt_flag & MNT_NOATIME) || 307 (ip->i_flag & (IN_CHANGE | IN_UPDATE))) 308 ip->i_flag |= IN_ACCESS; 309 } 310 error = ext2fs_update(ip, &vap->va_atime, &vap->va_mtime, 1); 311 if (error) 312 return (error); 313 } 314 error = 0; 315 if (vap->va_mode != (mode_t)VNOVAL) { 316 if (vp->v_mount->mnt_flag & MNT_RDONLY) 317 return (EROFS); 318 error = ext2fs_chmod(vp, (int)vap->va_mode, cred, p); 319 } 320 return (error); 321 } 322 323 /* 324 * Change the mode on a file. 325 * Inode must be locked before calling. 326 */ 327 static int 328 ext2fs_chmod(struct vnode *vp, mode_t mode, struct ucred *cred, struct proc *p) 329 { 330 struct inode *ip = VTOI(vp); 331 int error; 332 333 if (cred->cr_uid != ip->i_e2fs_uid && (error = suser_ucred(cred))) 334 return (error); 335 if (cred->cr_uid) { 336 if (vp->v_type != VDIR && (mode & S_ISTXT)) 337 return (EFTYPE); 338 if (!groupmember(ip->i_e2fs_gid, cred) && (mode & ISGID)) 339 return (EPERM); 340 } 341 ip->i_e2fs_mode &= ~ALLPERMS; 342 ip->i_e2fs_mode |= (mode & ALLPERMS); 343 ip->i_flag |= IN_CHANGE; 344 if ((vp->v_flag & VTEXT) && (ip->i_e2fs_mode & S_ISTXT) == 0) 345 (void) uvm_vnp_uncache(vp); 346 return (0); 347 } 348 349 /* 350 * Perform chown operation on inode ip; 351 * inode must be locked prior to call. 352 */ 353 static int 354 ext2fs_chown(struct vnode *vp, uid_t uid, gid_t gid, struct ucred *cred, struct proc *p) 355 { 356 struct inode *ip = VTOI(vp); 357 uid_t ouid; 358 gid_t ogid; 359 int error = 0; 360 361 if (uid == (uid_t)VNOVAL) 362 uid = ip->i_e2fs_uid; 363 if (gid == (gid_t)VNOVAL) 364 gid = ip->i_e2fs_gid; 365 /* 366 * If we don't own the file, are trying to change the owner 367 * of the file, or are not a member of the target group, 368 * the caller must be superuser or the call fails. 369 */ 370 if ((cred->cr_uid != ip->i_e2fs_uid || uid != ip->i_e2fs_uid || 371 (gid != ip->i_e2fs_gid && !groupmember((gid_t)gid, cred))) && 372 (error = suser_ucred(cred))) 373 return (error); 374 ogid = ip->i_e2fs_gid; 375 ouid = ip->i_e2fs_uid; 376 377 ip->i_e2fs_gid = gid; 378 ip->i_e2fs_uid = uid; 379 if (ouid != uid || ogid != gid) 380 ip->i_flag |= IN_CHANGE; 381 if (ouid != uid && cred->cr_uid != 0) 382 ip->i_e2fs_mode &= ~ISUID; 383 if (ogid != gid && cred->cr_uid != 0) 384 ip->i_e2fs_mode &= ~ISGID; 385 return (0); 386 } 387 388 int 389 ext2fs_remove(void *v) 390 { 391 struct vop_remove_args *ap = v; 392 struct inode *ip; 393 struct vnode *vp = ap->a_vp; 394 struct vnode *dvp = ap->a_dvp; 395 int error; 396 397 ip = VTOI(vp); 398 if (vp->v_type == VDIR || 399 (ip->i_e2fs_flags & (EXT2_IMMUTABLE | EXT2_APPEND)) || 400 (VTOI(dvp)->i_e2fs_flags & EXT2_APPEND)) { 401 error = EPERM; 402 goto out; 403 } 404 error = ext2fs_dirremove(dvp, ap->a_cnp); 405 if (error == 0) { 406 ip->i_e2fs_nlink--; 407 ip->i_flag |= IN_CHANGE; 408 } 409 out: 410 if (dvp == vp) 411 vrele(vp); 412 else 413 vput(vp); 414 vput(dvp); 415 return (error); 416 } 417 418 /* 419 * link vnode call 420 */ 421 int 422 ext2fs_link(void *v) 423 { 424 struct vop_link_args *ap = v; 425 struct vnode *dvp = ap->a_dvp; 426 struct vnode *vp = ap->a_vp; 427 struct componentname *cnp = ap->a_cnp; 428 struct proc *p = cnp->cn_proc; 429 struct inode *ip; 430 int error; 431 432 #ifdef DIAGNOSTIC 433 if ((cnp->cn_flags & HASBUF) == 0) 434 panic("ext2fs_link: no name"); 435 #endif 436 if (vp->v_type == VDIR) { 437 VOP_ABORTOP(dvp, cnp); 438 error = EISDIR; 439 goto out2; 440 } 441 if (dvp->v_mount != vp->v_mount) { 442 VOP_ABORTOP(dvp, cnp); 443 error = EXDEV; 444 goto out2; 445 } 446 if (dvp != vp && (error = vn_lock(vp, LK_EXCLUSIVE, p))) { 447 VOP_ABORTOP(dvp, cnp); 448 goto out2; 449 } 450 ip = VTOI(vp); 451 if ((nlink_t)ip->i_e2fs_nlink >= LINK_MAX) { 452 VOP_ABORTOP(dvp, cnp); 453 error = EMLINK; 454 goto out1; 455 } 456 if (ip->i_e2fs_flags & (EXT2_IMMUTABLE | EXT2_APPEND)) { 457 VOP_ABORTOP(dvp, cnp); 458 error = EPERM; 459 goto out1; 460 } 461 ip->i_e2fs_nlink++; 462 ip->i_flag |= IN_CHANGE; 463 error = ext2fs_update(ip, NULL, NULL, 1); 464 if (!error) 465 error = ext2fs_direnter(ip, dvp, cnp); 466 if (error) { 467 ip->i_e2fs_nlink--; 468 ip->i_flag |= IN_CHANGE; 469 } 470 pool_put(&namei_pool, cnp->cn_pnbuf); 471 out1: 472 if (dvp != vp) 473 VOP_UNLOCK(vp, 0, p); 474 out2: 475 vput(dvp); 476 return (error); 477 } 478 479 /* 480 * Rename system call. 481 * rename("foo", "bar"); 482 * is essentially 483 * unlink("bar"); 484 * link("foo", "bar"); 485 * unlink("foo"); 486 * but ``atomically''. Can't do full commit without saving state in the 487 * inode on disk which isn't feasible at this time. Best we can do is 488 * always guarantee the target exists. 489 * 490 * Basic algorithm is: 491 * 492 * 1) Bump link count on source while we're linking it to the 493 * target. This also ensure the inode won't be deleted out 494 * from underneath us while we work (it may be truncated by 495 * a concurrent `trunc' or `open' for creation). 496 * 2) Link source to destination. If destination already exists, 497 * delete it first. 498 * 3) Unlink source reference to inode if still around. If a 499 * directory was moved and the parent of the destination 500 * is different from the source, patch the ".." entry in the 501 * directory. 502 */ 503 int 504 ext2fs_rename(void *v) 505 { 506 struct vop_rename_args *ap = v; 507 struct vnode *tvp = ap->a_tvp; 508 struct vnode *tdvp = ap->a_tdvp; 509 struct vnode *fvp = ap->a_fvp; 510 struct vnode *fdvp = ap->a_fdvp; 511 struct componentname *tcnp = ap->a_tcnp; 512 struct componentname *fcnp = ap->a_fcnp; 513 struct inode *ip, *xp, *dp; 514 struct proc *p = fcnp->cn_proc; 515 struct ext2fs_dirtemplate dirbuf; 516 /* struct timespec ts; */ 517 int doingdirectory = 0, oldparent = 0, newparent = 0; 518 int error = 0; 519 u_char namlen; 520 521 #ifdef DIAGNOSTIC 522 if ((tcnp->cn_flags & HASBUF) == 0 || 523 (fcnp->cn_flags & HASBUF) == 0) 524 panic("ext2fs_rename: no name"); 525 #endif 526 /* 527 * Check for cross-device rename. 528 */ 529 if ((fvp->v_mount != tdvp->v_mount) || 530 (tvp && (fvp->v_mount != tvp->v_mount))) { 531 error = EXDEV; 532 abortit: 533 VOP_ABORTOP(tdvp, tcnp); /* XXX, why not in NFS? */ 534 if (tdvp == tvp) 535 vrele(tdvp); 536 else 537 vput(tdvp); 538 if (tvp) 539 vput(tvp); 540 VOP_ABORTOP(fdvp, fcnp); /* XXX, why not in NFS? */ 541 vrele(fdvp); 542 vrele(fvp); 543 return (error); 544 } 545 546 /* 547 * Check if just deleting a link name. 548 */ 549 if (tvp && ((VTOI(tvp)->i_e2fs_flags & (EXT2_IMMUTABLE | EXT2_APPEND)) || 550 (VTOI(tdvp)->i_e2fs_flags & EXT2_APPEND))) { 551 error = EPERM; 552 goto abortit; 553 } 554 if (fvp == tvp) { 555 if (fvp->v_type == VDIR) { 556 error = EINVAL; 557 goto abortit; 558 } 559 560 /* Release destination completely. */ 561 VOP_ABORTOP(tdvp, tcnp); 562 vput(tdvp); 563 vput(tvp); 564 565 /* Delete source. */ 566 vrele(fdvp); 567 vrele(fvp); 568 fcnp->cn_flags &= ~MODMASK; 569 fcnp->cn_flags |= LOCKPARENT | LOCKLEAF; 570 if ((fcnp->cn_flags & SAVESTART) == 0) 571 panic("ext2fs_rename: lost from startdir"); 572 fcnp->cn_nameiop = DELETE; 573 (void) relookup(fdvp, &fvp, fcnp); 574 return (VOP_REMOVE(fdvp, fvp, fcnp)); 575 } 576 if ((error = vn_lock(fvp, LK_EXCLUSIVE, p)) != 0) 577 goto abortit; 578 dp = VTOI(fdvp); 579 ip = VTOI(fvp); 580 if ((nlink_t)ip->i_e2fs_nlink >= LINK_MAX) { 581 VOP_UNLOCK(fvp, 0, p); 582 error = EMLINK; 583 goto abortit; 584 } 585 if ((ip->i_e2fs_flags & (EXT2_IMMUTABLE | EXT2_APPEND)) || 586 (dp->i_e2fs_flags & EXT2_APPEND)) { 587 VOP_UNLOCK(fvp, 0, p); 588 error = EPERM; 589 goto abortit; 590 } 591 if ((ip->i_e2fs_mode & IFMT) == IFDIR) { 592 error = VOP_ACCESS(fvp, VWRITE, tcnp->cn_cred, tcnp->cn_proc); 593 if (!error && tvp) 594 error = VOP_ACCESS(tvp, VWRITE, tcnp->cn_cred, 595 tcnp->cn_proc); 596 if (error) { 597 VOP_UNLOCK(fvp, 0, p); 598 error = EACCES; 599 goto abortit; 600 } 601 /* 602 * Avoid ".", "..", and aliases of "." for obvious reasons. 603 */ 604 if ((fcnp->cn_namelen == 1 && fcnp->cn_nameptr[0] == '.') || 605 dp == ip || 606 (fcnp->cn_flags&ISDOTDOT) || 607 (tcnp->cn_flags & ISDOTDOT) || 608 (ip->i_flag & IN_RENAME)) { 609 VOP_UNLOCK(fvp, 0, p); 610 error = EINVAL; 611 goto abortit; 612 } 613 ip->i_flag |= IN_RENAME; 614 oldparent = dp->i_number; 615 doingdirectory++; 616 } 617 vrele(fdvp); 618 619 /* 620 * When the target exists, both the directory 621 * and target vnodes are returned locked. 622 */ 623 dp = VTOI(tdvp); 624 xp = NULL; 625 if (tvp) 626 xp = VTOI(tvp); 627 628 /* 629 * 1) Bump link count while we're moving stuff 630 * around. If we crash somewhere before 631 * completing our work, the link count 632 * may be wrong, but correctable. 633 */ 634 ip->i_e2fs_nlink++; 635 ip->i_flag |= IN_CHANGE; 636 if ((error = ext2fs_update(ip, NULL, NULL, 1)) != 0) { 637 VOP_UNLOCK(fvp, 0, p); 638 goto bad; 639 } 640 641 /* 642 * If ".." must be changed (ie the directory gets a new 643 * parent) then the source directory must not be in the 644 * directory hierarchy above the target, as this would 645 * orphan everything below the source directory. Also 646 * the user must have write permission in the source so 647 * as to be able to change "..". We must repeat the call 648 * to namei, as the parent directory is unlocked by the 649 * call to checkpath(). 650 */ 651 error = VOP_ACCESS(fvp, VWRITE, tcnp->cn_cred, tcnp->cn_proc); 652 VOP_UNLOCK(fvp, 0, p); 653 if (oldparent != dp->i_number) 654 newparent = dp->i_number; 655 if (doingdirectory && newparent) { 656 if (error) /* write access check above */ 657 goto bad; 658 if (xp != NULL) 659 vput(tvp); 660 error = ext2fs_checkpath(ip, dp, tcnp->cn_cred); 661 if (error != 0) 662 goto out; 663 if ((tcnp->cn_flags & SAVESTART) == 0) 664 panic("ext2fs_rename: lost to startdir"); 665 if ((error = relookup(tdvp, &tvp, tcnp)) != 0) 666 goto out; 667 dp = VTOI(tdvp); 668 xp = NULL; 669 if (tvp) 670 xp = VTOI(tvp); 671 } 672 /* 673 * 2) If target doesn't exist, link the target 674 * to the source and unlink the source. 675 * Otherwise, rewrite the target directory 676 * entry to reference the source inode and 677 * expunge the original entry's existence. 678 */ 679 if (xp == NULL) { 680 if (dp->i_dev != ip->i_dev) 681 panic("rename: EXDEV"); 682 /* 683 * Account for ".." in new directory. 684 * When source and destination have the same 685 * parent we don't fool with the link count. 686 */ 687 if (doingdirectory && newparent) { 688 if ((nlink_t)dp->i_e2fs_nlink >= LINK_MAX) { 689 error = EMLINK; 690 goto bad; 691 } 692 dp->i_e2fs_nlink++; 693 dp->i_flag |= IN_CHANGE; 694 if ((error = ext2fs_update(dp, NULL, NULL, 1)) != 0) 695 goto bad; 696 } 697 error = ext2fs_direnter(ip, tdvp, tcnp); 698 if (error != 0) { 699 if (doingdirectory && newparent) { 700 dp->i_e2fs_nlink--; 701 dp->i_flag |= IN_CHANGE; 702 (void)ext2fs_update(dp, NULL, NULL, 1); 703 } 704 goto bad; 705 } 706 vput(tdvp); 707 } else { 708 if (xp->i_dev != dp->i_dev || xp->i_dev != ip->i_dev) 709 panic("rename: EXDEV"); 710 /* 711 * Short circuit rename(foo, foo). 712 */ 713 if (xp->i_number == ip->i_number) 714 panic("rename: same file"); 715 /* 716 * If the parent directory is "sticky", then the user must 717 * own the parent directory, or the destination of the rename, 718 * otherwise the destination may not be changed (except by 719 * root). This implements append-only directories. 720 */ 721 if ((dp->i_e2fs_mode & S_ISTXT) && tcnp->cn_cred->cr_uid != 0 && 722 tcnp->cn_cred->cr_uid != dp->i_e2fs_uid && 723 xp->i_e2fs_uid != tcnp->cn_cred->cr_uid) { 724 error = EPERM; 725 goto bad; 726 } 727 /* 728 * Target must be empty if a directory and have no links 729 * to it. Also, ensure source and target are compatible 730 * (both directories, or both not directories). 731 */ 732 if ((xp->i_e2fs_mode & IFMT) == IFDIR) { 733 if (!ext2fs_dirempty(xp, dp->i_number, tcnp->cn_cred) || 734 xp->i_e2fs_nlink > 2) { 735 error = ENOTEMPTY; 736 goto bad; 737 } 738 if (!doingdirectory) { 739 error = ENOTDIR; 740 goto bad; 741 } 742 cache_purge(tdvp); 743 } else if (doingdirectory) { 744 error = EISDIR; 745 goto bad; 746 } 747 error = ext2fs_dirrewrite(dp, ip, tcnp); 748 if (error != 0) 749 goto bad; 750 /* 751 * If the target directory is in the same 752 * directory as the source directory, 753 * decrement the link count on the parent 754 * of the target directory. 755 */ 756 if (doingdirectory && !newparent) { 757 dp->i_e2fs_nlink--; 758 dp->i_flag |= IN_CHANGE; 759 } 760 vput(tdvp); 761 /* 762 * Adjust the link count of the target to 763 * reflect the dirrewrite above. If this is 764 * a directory it is empty and there are 765 * no links to it, so we can squash the inode and 766 * any space associated with it. We disallowed 767 * renaming over top of a directory with links to 768 * it above, as the remaining link would point to 769 * a directory without "." or ".." entries. 770 */ 771 xp->i_e2fs_nlink--; 772 if (doingdirectory) { 773 if (--xp->i_e2fs_nlink != 0) 774 panic("rename: linked directory"); 775 error = ext2fs_truncate(xp, (off_t)0, IO_SYNC, 776 tcnp->cn_cred); 777 } 778 xp->i_flag |= IN_CHANGE; 779 vput(tvp); 780 xp = NULL; 781 } 782 783 /* 784 * 3) Unlink the source. 785 */ 786 fcnp->cn_flags &= ~MODMASK; 787 fcnp->cn_flags |= LOCKPARENT | LOCKLEAF; 788 if ((fcnp->cn_flags & SAVESTART) == 0) 789 panic("ext2fs_rename: lost from startdir"); 790 (void) relookup(fdvp, &fvp, fcnp); 791 if (fvp != NULL) { 792 xp = VTOI(fvp); 793 dp = VTOI(fdvp); 794 } else { 795 /* 796 * From name has disappeared. 797 */ 798 if (doingdirectory) 799 panic("ext2fs_rename: lost dir entry"); 800 vrele(ap->a_fvp); 801 return (0); 802 } 803 /* 804 * Ensure that the directory entry still exists and has not 805 * changed while the new name has been entered. If the source is 806 * a file then the entry may have been unlinked or renamed. In 807 * either case there is no further work to be done. If the source 808 * is a directory then it cannot have been rmdir'ed; its link 809 * count of three would cause a rmdir to fail with ENOTEMPTY. 810 * The IRENAME flag ensures that it cannot be moved by another 811 * rename. 812 */ 813 if (xp != ip) { 814 if (doingdirectory) 815 panic("ext2fs_rename: lost dir entry"); 816 } else { 817 /* 818 * If the source is a directory with a 819 * new parent, the link count of the old 820 * parent directory must be decremented 821 * and ".." set to point to the new parent. 822 */ 823 if (doingdirectory && newparent) { 824 dp->i_e2fs_nlink--; 825 dp->i_flag |= IN_CHANGE; 826 error = vn_rdwr(UIO_READ, fvp, (caddr_t)&dirbuf, 827 sizeof (struct ext2fs_dirtemplate), (off_t)0, 828 UIO_SYSSPACE, IO_NODELOCKED, 829 tcnp->cn_cred, (size_t *)0, (struct proc *)0); 830 if (error == 0) { 831 namlen = dirbuf.dotdot_namlen; 832 if (namlen != 2 || 833 dirbuf.dotdot_name[0] != '.' || 834 dirbuf.dotdot_name[1] != '.') { 835 ufs_dirbad(xp, (doff_t)12, 836 "ext2fs_rename: mangled dir"); 837 } else { 838 dirbuf.dotdot_ino = h2fs32(newparent); 839 (void) vn_rdwr(UIO_WRITE, fvp, 840 (caddr_t)&dirbuf, 841 sizeof (struct dirtemplate), 842 (off_t)0, UIO_SYSSPACE, 843 IO_NODELOCKED|IO_SYNC, 844 tcnp->cn_cred, (size_t *)0, 845 (struct proc *)0); 846 cache_purge(fdvp); 847 } 848 } 849 } 850 error = ext2fs_dirremove(fdvp, fcnp); 851 if (!error) { 852 xp->i_e2fs_nlink--; 853 xp->i_flag |= IN_CHANGE; 854 } 855 xp->i_flag &= ~IN_RENAME; 856 } 857 if (dp) 858 vput(fdvp); 859 if (xp) 860 vput(fvp); 861 vrele(ap->a_fvp); 862 return (error); 863 864 bad: 865 if (xp) 866 vput(ITOV(xp)); 867 vput(ITOV(dp)); 868 out: 869 if (doingdirectory) 870 ip->i_flag &= ~IN_RENAME; 871 if (vn_lock(fvp, LK_EXCLUSIVE, p) == 0) { 872 ip->i_e2fs_nlink--; 873 ip->i_flag |= IN_CHANGE; 874 vput(fvp); 875 } else 876 vrele(fvp); 877 return (error); 878 } 879 880 /* 881 * Mkdir system call 882 */ 883 int 884 ext2fs_mkdir(void *v) 885 { 886 struct vop_mkdir_args *ap = v; 887 struct vnode *dvp = ap->a_dvp; 888 struct vattr *vap = ap->a_vap; 889 struct componentname *cnp = ap->a_cnp; 890 struct inode *ip, *dp; 891 struct vnode *tvp; 892 struct ext2fs_dirtemplate dirtemplate; 893 mode_t dmode; 894 int error; 895 896 #ifdef DIAGNOSTIC 897 if ((cnp->cn_flags & HASBUF) == 0) 898 panic("ext2fs_mkdir: no name"); 899 #endif 900 dp = VTOI(dvp); 901 if ((nlink_t)dp->i_e2fs_nlink >= LINK_MAX) { 902 error = EMLINK; 903 goto out; 904 } 905 dmode = vap->va_mode & ACCESSPERMS; 906 dmode |= IFDIR; 907 /* 908 * Must simulate part of ext2fs_makeinode here to acquire the inode, 909 * but not have it entered in the parent directory. The entry is 910 * made later after writing "." and ".." entries. 911 */ 912 if ((error = ext2fs_inode_alloc(dp, dmode, cnp->cn_cred, &tvp)) != 0) 913 goto out; 914 ip = VTOI(tvp); 915 ip->i_e2fs_uid = cnp->cn_cred->cr_uid; 916 ip->i_e2fs_gid = dp->i_e2fs_gid; 917 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE; 918 ip->i_e2fs_mode = dmode; 919 tvp->v_type = VDIR; /* Rest init'd in getnewvnode(). */ 920 ip->i_e2fs_nlink = 2; 921 error = ext2fs_update(ip, NULL, NULL, 1); 922 923 /* 924 * Bump link count in parent directory 925 * to reflect work done below. Should 926 * be done before reference is created 927 * so reparation is possible if we crash. 928 */ 929 dp->i_e2fs_nlink++; 930 dp->i_flag |= IN_CHANGE; 931 if ((error = ext2fs_update(dp, NULL, NULL, 1)) != 0) 932 goto bad; 933 934 /* Initialize directory with "." and ".." from static template. */ 935 bzero(&dirtemplate, sizeof(dirtemplate)); 936 dirtemplate.dot_ino = h2fs32(ip->i_number); 937 dirtemplate.dot_reclen = h2fs16(12); 938 dirtemplate.dot_namlen = 1; 939 if (ip->i_e2fs->e2fs.e2fs_rev > E2FS_REV0 && 940 (ip->i_e2fs->e2fs.e2fs_features_incompat & EXT2F_INCOMPAT_FTYPE)) { 941 dirtemplate.dot_type = EXT2_FT_DIR; 942 } 943 dirtemplate.dot_name[0] = '.'; 944 dirtemplate.dotdot_ino = h2fs32(dp->i_number); 945 dirtemplate.dotdot_reclen = h2fs16(VTOI(dvp)->i_e2fs->e2fs_bsize - 12); 946 dirtemplate.dotdot_namlen = 2; 947 if (ip->i_e2fs->e2fs.e2fs_rev > E2FS_REV0 && 948 (ip->i_e2fs->e2fs.e2fs_features_incompat & EXT2F_INCOMPAT_FTYPE)) { 949 dirtemplate.dotdot_type = EXT2_FT_DIR; 950 } 951 dirtemplate.dotdot_name[0] = dirtemplate.dotdot_name[1] = '.'; 952 error = vn_rdwr(UIO_WRITE, tvp, (caddr_t)&dirtemplate, 953 sizeof (dirtemplate), (off_t)0, UIO_SYSSPACE, 954 IO_NODELOCKED|IO_SYNC, cnp->cn_cred, (size_t *)0, (struct proc *)0); 955 if (error) { 956 dp->i_e2fs_nlink--; 957 dp->i_flag |= IN_CHANGE; 958 goto bad; 959 } 960 if (VTOI(dvp)->i_e2fs->e2fs_bsize > 961 VFSTOUFS(dvp->v_mount)->um_mountp->mnt_stat.f_bsize) 962 panic("ext2fs_mkdir: blksize"); /* XXX should grow with balloc() */ 963 else { 964 error = ext2fs_setsize(ip, VTOI(dvp)->i_e2fs->e2fs_bsize); 965 if (error) { 966 dp->i_e2fs_nlink--; 967 dp->i_flag |= IN_CHANGE; 968 goto bad; 969 } 970 ip->i_flag |= IN_CHANGE; 971 } 972 973 /* Directory set up, now install its entry in the parent directory. */ 974 error = ext2fs_direnter(ip, dvp, cnp); 975 if (error != 0) { 976 dp->i_e2fs_nlink--; 977 dp->i_flag |= IN_CHANGE; 978 } 979 bad: 980 /* 981 * No need to do an explicit VOP_TRUNCATE here, vrele will do this 982 * for us because we set the link count to 0. 983 */ 984 if (error) { 985 ip->i_e2fs_nlink = 0; 986 ip->i_flag |= IN_CHANGE; 987 vput(tvp); 988 } else 989 *ap->a_vpp = tvp; 990 out: 991 pool_put(&namei_pool, cnp->cn_pnbuf); 992 vput(dvp); 993 return (error); 994 } 995 996 /* 997 * Rmdir system call. 998 */ 999 int 1000 ext2fs_rmdir(void *v) 1001 { 1002 struct vop_rmdir_args *ap = v; 1003 struct vnode *vp = ap->a_vp; 1004 struct vnode *dvp = ap->a_dvp; 1005 struct componentname *cnp = ap->a_cnp; 1006 struct inode *ip, *dp; 1007 int error; 1008 1009 ip = VTOI(vp); 1010 dp = VTOI(dvp); 1011 /* 1012 * No rmdir "." please. 1013 */ 1014 if (dp == ip) { 1015 vrele(dvp); 1016 vput(vp); 1017 return (EINVAL); 1018 } 1019 /* 1020 * Verify the directory is empty (and valid). 1021 * (Rmdir ".." won't be valid since 1022 * ".." will contain a reference to 1023 * the current directory and thus be 1024 * non-empty.) 1025 */ 1026 error = 0; 1027 if (ip->i_e2fs_nlink != 2 || 1028 !ext2fs_dirempty(ip, dp->i_number, cnp->cn_cred)) { 1029 error = ENOTEMPTY; 1030 goto out; 1031 } 1032 if ((dp->i_e2fs_flags & EXT2_APPEND) || 1033 (ip->i_e2fs_flags & (EXT2_IMMUTABLE | EXT2_APPEND))) { 1034 error = EPERM; 1035 goto out; 1036 } 1037 /* 1038 * Delete reference to directory before purging 1039 * inode. If we crash in between, the directory 1040 * will be reattached to lost+found, 1041 */ 1042 error = ext2fs_dirremove(dvp, cnp); 1043 if (error != 0) 1044 goto out; 1045 dp->i_e2fs_nlink--; 1046 dp->i_flag |= IN_CHANGE; 1047 cache_purge(dvp); 1048 vput(dvp); 1049 dvp = NULL; 1050 /* 1051 * Truncate inode. The only stuff left 1052 * in the directory is "." and "..". The 1053 * "." reference is inconsequential since 1054 * we're quashing it. The ".." reference 1055 * has already been adjusted above. We've 1056 * removed the "." reference and the reference 1057 * in the parent directory, but there may be 1058 * other hard links so decrement by 2 and 1059 * worry about them later. 1060 */ 1061 ip->i_e2fs_nlink -= 2; 1062 error = ext2fs_truncate(ip, (off_t)0, IO_SYNC, cnp->cn_cred); 1063 cache_purge(ITOV(ip)); 1064 out: 1065 if (dvp) 1066 vput(dvp); 1067 vput(vp); 1068 return (error); 1069 } 1070 1071 /* 1072 * symlink -- make a symbolic link 1073 */ 1074 int 1075 ext2fs_symlink(void *v) 1076 { 1077 struct vop_symlink_args *ap = v; 1078 struct vnode *vp, **vpp = ap->a_vpp; 1079 struct inode *ip; 1080 int len, error; 1081 1082 error = ext2fs_makeinode(IFLNK | ap->a_vap->va_mode, ap->a_dvp, 1083 vpp, ap->a_cnp); 1084 if (error) 1085 return (error); 1086 vp = *vpp; 1087 len = strlen(ap->a_target); 1088 if (len < vp->v_mount->mnt_maxsymlinklen) { 1089 ip = VTOI(vp); 1090 bcopy(ap->a_target, (char *)ip->i_e2din->e2di_shortlink, len); 1091 error = ext2fs_setsize(ip, len); 1092 if (error) 1093 goto bad; 1094 ip->i_flag |= IN_CHANGE | IN_UPDATE; 1095 } else 1096 error = vn_rdwr(UIO_WRITE, vp, ap->a_target, len, (off_t)0, 1097 UIO_SYSSPACE, IO_NODELOCKED, ap->a_cnp->cn_cred, NULL, 1098 (struct proc *)0); 1099 bad: 1100 vput(vp); 1101 return (error); 1102 } 1103 1104 /* 1105 * Return target name of a symbolic link 1106 */ 1107 int 1108 ext2fs_readlink(void *v) 1109 { 1110 struct vop_readlink_args *ap = v; 1111 struct vnode *vp = ap->a_vp; 1112 struct inode *ip = VTOI(vp); 1113 int isize; 1114 1115 isize = ext2fs_size(ip); 1116 if (isize < vp->v_mount->mnt_maxsymlinklen || 1117 (vp->v_mount->mnt_maxsymlinklen == 0 && ip->i_e2fs_nblock == 0)) { 1118 uiomove((char *)ip->i_e2din->e2di_shortlink, isize, ap->a_uio); 1119 return (0); 1120 } 1121 return (VOP_READ(vp, ap->a_uio, 0, ap->a_cred)); 1122 } 1123 1124 /* 1125 * Advisory record locking support 1126 */ 1127 int 1128 ext2fs_advlock(void *v) 1129 { 1130 struct vop_advlock_args *ap = v; 1131 struct inode *ip = VTOI(ap->a_vp); 1132 1133 return (lf_advlock(&ip->i_lockf, ext2fs_size(ip), ap->a_id, ap->a_op, 1134 ap->a_fl, ap->a_flags)); 1135 } 1136 1137 /* 1138 * Allocate a new inode. 1139 */ 1140 int 1141 ext2fs_makeinode(int mode, struct vnode *dvp, struct vnode **vpp, 1142 struct componentname *cnp) 1143 { 1144 struct inode *ip, *pdir; 1145 struct vnode *tvp; 1146 int error; 1147 1148 pdir = VTOI(dvp); 1149 #ifdef DIAGNOSTIC 1150 if ((cnp->cn_flags & HASBUF) == 0) 1151 panic("ext2fs_makeinode: no name"); 1152 #endif 1153 *vpp = NULL; 1154 if ((mode & IFMT) == 0) 1155 mode |= IFREG; 1156 1157 if ((error = ext2fs_inode_alloc(pdir, mode, cnp->cn_cred, &tvp)) 1158 != 0) { 1159 pool_put(&namei_pool, cnp->cn_pnbuf); 1160 vput(dvp); 1161 return (error); 1162 } 1163 ip = VTOI(tvp); 1164 ip->i_e2fs_gid = pdir->i_e2fs_gid; 1165 ip->i_e2fs_uid = cnp->cn_cred->cr_uid; 1166 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE; 1167 ip->i_e2fs_mode = mode; 1168 tvp->v_type = IFTOVT(mode); /* Rest init'd in getnewvnode(). */ 1169 ip->i_e2fs_nlink = 1; 1170 if ((ip->i_e2fs_mode & ISGID) && 1171 !groupmember(ip->i_e2fs_gid, cnp->cn_cred) && 1172 suser_ucred(cnp->cn_cred)) 1173 ip->i_e2fs_mode &= ~ISGID; 1174 1175 /* 1176 * Make sure inode goes to disk before directory entry. 1177 */ 1178 if ((error = ext2fs_update(ip, NULL, NULL, 1)) != 0) 1179 goto bad; 1180 error = ext2fs_direnter(ip, dvp, cnp); 1181 if (error != 0) 1182 goto bad; 1183 if ((cnp->cn_flags & SAVESTART) == 0) 1184 pool_put(&namei_pool, cnp->cn_pnbuf); 1185 vput(dvp); 1186 *vpp = tvp; 1187 return (0); 1188 1189 bad: 1190 /* 1191 * Write error occurred trying to update the inode 1192 * or the directory so must deallocate the inode. 1193 */ 1194 pool_put(&namei_pool, cnp->cn_pnbuf); 1195 vput(dvp); 1196 ip->i_e2fs_nlink = 0; 1197 ip->i_flag |= IN_CHANGE; 1198 tvp->v_type = VNON; 1199 vput(tvp); 1200 return (error); 1201 } 1202 1203 /* 1204 * Synch an open file. 1205 */ 1206 /* ARGSUSED */ 1207 int 1208 ext2fs_fsync(void *v) 1209 { 1210 struct vop_fsync_args *ap = v; 1211 struct vnode *vp = ap->a_vp; 1212 1213 vflushbuf(vp, ap->a_waitfor == MNT_WAIT); 1214 return (ext2fs_update(VTOI(ap->a_vp), NULL, NULL, 1215 ap->a_waitfor == MNT_WAIT)); 1216 } 1217 1218 /* 1219 * Reclaim an inode so that it can be used for other purposes. 1220 */ 1221 int 1222 ext2fs_reclaim(void *v) 1223 { 1224 struct vop_reclaim_args *ap = v; 1225 struct vnode *vp = ap->a_vp; 1226 struct inode *ip; 1227 #ifdef DIAGNOSTIC 1228 extern int prtactive; 1229 1230 if (prtactive && vp->v_usecount != 0) 1231 vprint("ext2fs_reclaim: pushing active", vp); 1232 #endif 1233 1234 /* 1235 * Remove the inode from its hash chain. 1236 */ 1237 ip = VTOI(vp); 1238 ufs_ihashrem(ip); 1239 1240 /* 1241 * Purge old data structures associated with the inode. 1242 */ 1243 cache_purge(vp); 1244 if (ip->i_devvp) 1245 vrele(ip->i_devvp); 1246 1247 if (ip->i_e2din != NULL) 1248 pool_put(&ext2fs_dinode_pool, ip->i_e2din); 1249 1250 pool_put(&ext2fs_inode_pool, ip); 1251 1252 vp->v_data = NULL; 1253 1254 return (0); 1255 } 1256 1257 /* Global vfs data structures for ext2fs. */ 1258 int (**ext2fs_vnodeop_p)(void *); 1259 struct vnodeopv_entry_desc ext2fs_vnodeop_entries[] = { 1260 { &vop_default_desc, eopnotsupp }, 1261 { &vop_lookup_desc, ext2fs_lookup }, /* lookup */ 1262 { &vop_create_desc, ext2fs_create }, /* create */ 1263 { &vop_mknod_desc, ext2fs_mknod }, /* mknod */ 1264 { &vop_open_desc, ext2fs_open }, /* open */ 1265 { &vop_close_desc, ufs_close }, /* close */ 1266 { &vop_access_desc, ext2fs_access }, /* access */ 1267 { &vop_getattr_desc, ext2fs_getattr }, /* getattr */ 1268 { &vop_setattr_desc, ext2fs_setattr }, /* setattr */ 1269 { &vop_read_desc, ext2fs_read }, /* read */ 1270 { &vop_write_desc, ext2fs_write }, /* write */ 1271 { &vop_ioctl_desc, ufs_ioctl }, /* ioctl */ 1272 { &vop_poll_desc, ufs_poll }, /* poll */ 1273 { &vop_kqfilter_desc, vop_generic_kqfilter }, /* kqfilter */ 1274 { &vop_fsync_desc, ext2fs_fsync }, /* fsync */ 1275 { &vop_remove_desc, ext2fs_remove }, /* remove */ 1276 { &vop_link_desc, ext2fs_link }, /* link */ 1277 { &vop_rename_desc, ext2fs_rename }, /* rename */ 1278 { &vop_mkdir_desc, ext2fs_mkdir }, /* mkdir */ 1279 { &vop_rmdir_desc, ext2fs_rmdir }, /* rmdir */ 1280 { &vop_symlink_desc, ext2fs_symlink }, /* symlink */ 1281 { &vop_readdir_desc, ext2fs_readdir }, /* readdir */ 1282 { &vop_readlink_desc, ext2fs_readlink },/* readlink */ 1283 { &vop_abortop_desc, vop_generic_abortop }, /* abortop */ 1284 { &vop_inactive_desc, ext2fs_inactive },/* inactive */ 1285 { &vop_reclaim_desc, ext2fs_reclaim }, /* reclaim */ 1286 { &vop_lock_desc, ufs_lock }, /* lock */ 1287 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 1288 { &vop_bmap_desc, ext2fs_bmap }, /* bmap */ 1289 { &vop_strategy_desc, ufs_strategy }, /* strategy */ 1290 { &vop_print_desc, ufs_print }, /* print */ 1291 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 1292 { &vop_pathconf_desc, ufs_pathconf }, /* pathconf */ 1293 { &vop_advlock_desc, ext2fs_advlock }, /* advlock */ 1294 { &vop_bwrite_desc, vop_generic_bwrite }, /* bwrite */ 1295 { NULL, NULL } 1296 }; 1297 struct vnodeopv_desc ext2fs_vnodeop_opv_desc = 1298 { &ext2fs_vnodeop_p, ext2fs_vnodeop_entries }; 1299 1300 int (**ext2fs_specop_p)(void *); 1301 struct vnodeopv_entry_desc ext2fs_specop_entries[] = { 1302 { &vop_default_desc, spec_vnoperate }, 1303 { &vop_close_desc, ufsspec_close }, /* close */ 1304 { &vop_access_desc, ext2fs_access }, /* access */ 1305 { &vop_getattr_desc, ext2fs_getattr }, /* getattr */ 1306 { &vop_setattr_desc, ext2fs_setattr }, /* setattr */ 1307 { &vop_read_desc, ufsspec_read }, /* read */ 1308 { &vop_write_desc, ufsspec_write }, /* write */ 1309 { &vop_fsync_desc, ext2fs_fsync }, /* fsync */ 1310 { &vop_inactive_desc, ext2fs_inactive },/* inactive */ 1311 { &vop_reclaim_desc, ext2fs_reclaim }, /* reclaim */ 1312 { &vop_lock_desc, ufs_lock }, /* lock */ 1313 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 1314 { &vop_print_desc, ufs_print }, /* print */ 1315 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 1316 { NULL, NULL } 1317 }; 1318 struct vnodeopv_desc ext2fs_specop_opv_desc = 1319 { &ext2fs_specop_p, ext2fs_specop_entries }; 1320 1321 #ifdef FIFO 1322 int (**ext2fs_fifoop_p)(void *); 1323 struct vnodeopv_entry_desc ext2fs_fifoop_entries[] = { 1324 { &vop_default_desc, fifo_vnoperate }, 1325 { &vop_close_desc, ufsfifo_close }, /* close */ 1326 { &vop_access_desc, ext2fs_access }, /* access */ 1327 { &vop_getattr_desc, ext2fs_getattr }, /* getattr */ 1328 { &vop_setattr_desc, ext2fs_setattr }, /* setattr */ 1329 { &vop_read_desc, ufsfifo_read }, /* read */ 1330 { &vop_write_desc, ufsfifo_write }, /* write */ 1331 { &vop_fsync_desc, ext2fs_fsync }, /* fsync */ 1332 { &vop_inactive_desc, ext2fs_inactive },/* inactive */ 1333 { &vop_reclaim_desc, ext2fsfifo_reclaim }, /* reclaim */ 1334 { &vop_lock_desc, ufs_lock }, /* lock */ 1335 { &vop_unlock_desc, ufs_unlock }, /* unlock */ 1336 { &vop_print_desc, ufs_print }, /* print */ 1337 { &vop_islocked_desc, ufs_islocked }, /* islocked */ 1338 { &vop_bwrite_desc, vop_generic_bwrite }, /* bwrite */ 1339 { NULL, NULL } 1340 }; 1341 struct vnodeopv_desc ext2fs_fifoop_opv_desc = 1342 { &ext2fs_fifoop_p, ext2fs_fifoop_entries }; 1343 1344 int 1345 ext2fsfifo_reclaim(void *v) 1346 { 1347 fifo_reclaim(v); 1348 return (ext2fs_reclaim(v)); 1349 } 1350 #endif /* FIFO */ 1351