1 /* $OpenBSD: ext2fs_vnops.c,v 1.77 2016/03/19 12:04:16 natano 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/proc.h> 49 #include <sys/conf.h> 50 #include <sys/mount.h> 51 #include <sys/namei.h> 52 #include <sys/vnode.h> 53 #include <sys/lockf.h> 54 #include <sys/malloc.h> 55 #include <sys/pool.h> 56 #include <sys/signalvar.h> 57 #include <sys/specdev.h> 58 #include <sys/unistd.h> 59 60 #include <miscfs/fifofs/fifo.h> 61 62 #include <ufs/ufs/quota.h> 63 #include <ufs/ufs/inode.h> 64 #include <ufs/ufs/ufs_extern.h> 65 #include <ufs/ufs/ufsmount.h> 66 67 #include <ufs/ext2fs/ext2fs.h> 68 #include <ufs/ext2fs/ext2fs_extern.h> 69 #include <ufs/ext2fs/ext2fs_dir.h> 70 71 #include <uvm/uvm_extern.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 = htole32(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 = NULL; 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; 170 171 EXT2FS_ITIMES(ip); 172 /* 173 * Copy from inode table 174 */ 175 vap->va_fsid = ip->i_dev; 176 vap->va_fileid = ip->i_number; 177 vap->va_mode = ip->i_e2fs_mode & ALLPERMS; 178 vap->va_nlink = ip->i_e2fs_nlink; 179 vap->va_uid = ip->i_e2fs_uid; 180 vap->va_gid = ip->i_e2fs_gid; 181 vap->va_rdev = (dev_t) letoh32(ip->i_e2din->e2di_rdev); 182 vap->va_size = ext2fs_size(ip); 183 vap->va_atime.tv_sec = ip->i_e2fs_atime; 184 vap->va_atime.tv_nsec = 0; 185 vap->va_mtime.tv_sec = ip->i_e2fs_mtime; 186 vap->va_mtime.tv_nsec = 0; 187 vap->va_ctime.tv_sec = ip->i_e2fs_ctime; 188 vap->va_ctime.tv_nsec = 0; 189 #ifdef EXT2FS_SYSTEM_FLAGS 190 vap->va_flags = (ip->i_e2fs_flags & EXT2_APPEND) ? SF_APPEND : 0; 191 vap->va_flags |= (ip->i_e2fs_flags & EXT2_IMMUTABLE) ? SF_IMMUTABLE : 0; 192 #else 193 vap->va_flags = (ip->i_e2fs_flags & EXT2_APPEND) ? UF_APPEND : 0; 194 vap->va_flags |= (ip->i_e2fs_flags & EXT2_IMMUTABLE) ? UF_IMMUTABLE : 0; 195 #endif 196 vap->va_gen = ip->i_e2fs_gen; 197 /* this doesn't belong here */ 198 if (vp->v_type == VBLK) 199 vap->va_blocksize = BLKDEV_IOSIZE; 200 else if (vp->v_type == VCHR) 201 vap->va_blocksize = MAXBSIZE; 202 else 203 vap->va_blocksize = vp->v_mount->mnt_stat.f_iosize; 204 vap->va_bytes = dbtob((u_quad_t)ip->i_e2fs_nblock); 205 vap->va_type = vp->v_type; 206 vap->va_filerev = ip->i_modrev; 207 return (0); 208 } 209 210 /* 211 * Set attribute vnode op. called from several syscalls 212 */ 213 int 214 ext2fs_setattr(void *v) 215 { 216 struct vop_setattr_args *ap = v; 217 struct vattr *vap = ap->a_vap; 218 struct vnode *vp = ap->a_vp; 219 struct inode *ip = VTOI(vp); 220 struct ucred *cred = ap->a_cred; 221 struct proc *p = ap->a_p; 222 int error; 223 224 /* 225 * Check for unsettable attributes. 226 */ 227 if ((vap->va_type != VNON) || (vap->va_nlink != VNOVAL) || 228 (vap->va_fsid != VNOVAL) || (vap->va_fileid != VNOVAL) || 229 (vap->va_blocksize != VNOVAL) || (vap->va_rdev != VNOVAL) || 230 ((int)vap->va_bytes != VNOVAL) || (vap->va_gen != VNOVAL)) { 231 return (EINVAL); 232 } 233 if (vap->va_flags != VNOVAL) { 234 if (vp->v_mount->mnt_flag & MNT_RDONLY) 235 return (EROFS); 236 if (cred->cr_uid != ip->i_e2fs_uid && 237 (error = suser_ucred(cred))) 238 return (error); 239 #ifdef EXT2FS_SYSTEM_FLAGS 240 if (cred->cr_uid == 0) { 241 if ((ip->i_e2fs_flags & 242 (EXT2_APPEND | EXT2_IMMUTABLE)) && securelevel > 0) 243 return (EPERM); 244 ip->i_e2fs_flags &= ~(EXT2_APPEND | EXT2_IMMUTABLE); 245 ip->i_e2fs_flags |= 246 (vap->va_flags & SF_APPEND) ? EXT2_APPEND : 0 | 247 (vap->va_flags & SF_IMMUTABLE) ? EXT2_IMMUTABLE: 0; 248 } else { 249 return (EPERM); 250 } 251 #else 252 ip->i_e2fs_flags &= ~(EXT2_APPEND | EXT2_IMMUTABLE); 253 ip->i_e2fs_flags |= 254 (vap->va_flags & UF_APPEND) ? EXT2_APPEND : 0 | 255 (vap->va_flags & UF_IMMUTABLE) ? EXT2_IMMUTABLE: 0; 256 #endif 257 ip->i_flag |= IN_CHANGE; 258 if (vap->va_flags & (IMMUTABLE | APPEND)) 259 return (0); 260 } 261 if (ip->i_e2fs_flags & (EXT2_APPEND | EXT2_IMMUTABLE)) 262 return (EPERM); 263 /* 264 * Go through the fields and update iff not VNOVAL. 265 */ 266 if (vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL) { 267 if (vp->v_mount->mnt_flag & MNT_RDONLY) 268 return (EROFS); 269 error = ext2fs_chown(vp, vap->va_uid, vap->va_gid, cred, p); 270 if (error) 271 return (error); 272 } 273 if (vap->va_size != VNOVAL) { 274 /* 275 * Disallow write attempts on read-only file systems; 276 * unless the file is a socket, fifo, or a block or 277 * character device resident on the file system. 278 */ 279 switch (vp->v_type) { 280 case VDIR: 281 return (EISDIR); 282 case VLNK: 283 case VREG: 284 if (vp->v_mount->mnt_flag & MNT_RDONLY) 285 return (EROFS); 286 default: 287 break; 288 } 289 error = ext2fs_truncate(ip, vap->va_size, 0, cred); 290 if (error) 291 return (error); 292 } 293 if ((vap->va_vaflags & VA_UTIMES_CHANGE) || 294 vap->va_atime.tv_nsec != VNOVAL || 295 vap->va_mtime.tv_nsec != 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_nsec != VNOVAL) 304 ip->i_flag |= IN_CHANGE | IN_UPDATE; 305 else if (vap->va_vaflags & VA_UTIMES_CHANGE) 306 ip->i_flag |= IN_CHANGE; 307 if (vap->va_atime.tv_nsec != VNOVAL) { 308 if (!(vp->v_mount->mnt_flag & MNT_NOATIME) || 309 (ip->i_flag & (IN_CHANGE | IN_UPDATE))) 310 ip->i_flag |= IN_ACCESS; 311 } 312 EXT2FS_ITIMES(ip); 313 if (vap->va_mtime.tv_nsec != VNOVAL) 314 ip->i_e2fs_mtime = vap->va_mtime.tv_sec; 315 if (vap->va_atime.tv_nsec != VNOVAL) 316 ip->i_e2fs_atime = vap->va_atime.tv_sec; 317 error = ext2fs_update(ip, 1); 318 if (error) 319 return (error); 320 } 321 error = 0; 322 if (vap->va_mode != (mode_t)VNOVAL) { 323 if (vp->v_mount->mnt_flag & MNT_RDONLY) 324 return (EROFS); 325 error = ext2fs_chmod(vp, vap->va_mode, cred, p); 326 } 327 return (error); 328 } 329 330 /* 331 * Change the mode on a file. 332 * Inode must be locked before calling. 333 */ 334 static int 335 ext2fs_chmod(struct vnode *vp, mode_t mode, struct ucred *cred, struct proc *p) 336 { 337 struct inode *ip = VTOI(vp); 338 int error; 339 340 if (cred->cr_uid != ip->i_e2fs_uid && (error = suser_ucred(cred))) 341 return (error); 342 if (cred->cr_uid) { 343 if (vp->v_type != VDIR && (mode & S_ISTXT)) 344 return (EFTYPE); 345 if (!groupmember(ip->i_e2fs_gid, cred) && (mode & ISGID)) 346 return (EPERM); 347 } 348 ip->i_e2fs_mode &= ~ALLPERMS; 349 ip->i_e2fs_mode |= (mode & ALLPERMS); 350 ip->i_flag |= IN_CHANGE; 351 if ((vp->v_flag & VTEXT) && (ip->i_e2fs_mode & S_ISTXT) == 0) 352 (void) uvm_vnp_uncache(vp); 353 return (0); 354 } 355 356 /* 357 * Perform chown operation on inode ip; 358 * inode must be locked prior to call. 359 */ 360 static int 361 ext2fs_chown(struct vnode *vp, uid_t uid, gid_t gid, struct ucred *cred, struct proc *p) 362 { 363 struct inode *ip = VTOI(vp); 364 uid_t ouid; 365 gid_t ogid; 366 int error = 0; 367 368 if (uid == (uid_t)VNOVAL) 369 uid = ip->i_e2fs_uid; 370 if (gid == (gid_t)VNOVAL) 371 gid = ip->i_e2fs_gid; 372 /* 373 * If we don't own the file, are trying to change the owner 374 * of the file, or are not a member of the target group, 375 * the caller must be superuser or the call fails. 376 */ 377 if ((cred->cr_uid != ip->i_e2fs_uid || uid != ip->i_e2fs_uid || 378 (gid != ip->i_e2fs_gid && !groupmember(gid, cred))) && 379 (error = suser_ucred(cred))) 380 return (error); 381 ogid = ip->i_e2fs_gid; 382 ouid = ip->i_e2fs_uid; 383 384 ip->i_e2fs_gid = gid; 385 ip->i_e2fs_uid = uid; 386 if (ouid != uid || ogid != gid) 387 ip->i_flag |= IN_CHANGE; 388 if (ouid != uid && cred->cr_uid != 0) 389 ip->i_e2fs_mode &= ~ISUID; 390 if (ogid != gid && cred->cr_uid != 0) 391 ip->i_e2fs_mode &= ~ISGID; 392 return (0); 393 } 394 395 int 396 ext2fs_remove(void *v) 397 { 398 struct vop_remove_args *ap = v; 399 struct inode *ip; 400 struct vnode *vp = ap->a_vp; 401 struct vnode *dvp = ap->a_dvp; 402 int error; 403 404 ip = VTOI(vp); 405 if (vp->v_type == VDIR || 406 (ip->i_e2fs_flags & (EXT2_IMMUTABLE | EXT2_APPEND)) || 407 (VTOI(dvp)->i_e2fs_flags & EXT2_APPEND)) { 408 error = EPERM; 409 goto out; 410 } 411 error = ext2fs_dirremove(dvp, ap->a_cnp); 412 if (error == 0) { 413 ip->i_e2fs_nlink--; 414 ip->i_flag |= IN_CHANGE; 415 } 416 out: 417 if (dvp == vp) 418 vrele(vp); 419 else 420 vput(vp); 421 vput(dvp); 422 return (error); 423 } 424 425 /* 426 * link vnode call 427 */ 428 int 429 ext2fs_link(void *v) 430 { 431 struct vop_link_args *ap = v; 432 struct vnode *dvp = ap->a_dvp; 433 struct vnode *vp = ap->a_vp; 434 struct componentname *cnp = ap->a_cnp; 435 struct proc *p = cnp->cn_proc; 436 struct inode *ip; 437 int error; 438 439 #ifdef DIAGNOSTIC 440 if ((cnp->cn_flags & HASBUF) == 0) 441 panic("ext2fs_link: no name"); 442 #endif 443 if (vp->v_type == VDIR) { 444 VOP_ABORTOP(dvp, cnp); 445 error = EISDIR; 446 goto out2; 447 } 448 if (dvp->v_mount != vp->v_mount) { 449 VOP_ABORTOP(dvp, cnp); 450 error = EXDEV; 451 goto out2; 452 } 453 if (dvp != vp && (error = vn_lock(vp, LK_EXCLUSIVE, p))) { 454 VOP_ABORTOP(dvp, cnp); 455 goto out2; 456 } 457 ip = VTOI(vp); 458 if ((nlink_t)ip->i_e2fs_nlink >= LINK_MAX) { 459 VOP_ABORTOP(dvp, cnp); 460 error = EMLINK; 461 goto out1; 462 } 463 if (ip->i_e2fs_flags & (EXT2_IMMUTABLE | EXT2_APPEND)) { 464 VOP_ABORTOP(dvp, cnp); 465 error = EPERM; 466 goto out1; 467 } 468 ip->i_e2fs_nlink++; 469 ip->i_flag |= IN_CHANGE; 470 error = ext2fs_update(ip, 1); 471 if (!error) 472 error = ext2fs_direnter(ip, dvp, cnp); 473 if (error) { 474 ip->i_e2fs_nlink--; 475 ip->i_flag |= IN_CHANGE; 476 } 477 pool_put(&namei_pool, cnp->cn_pnbuf); 478 out1: 479 if (dvp != vp) 480 VOP_UNLOCK(vp, p); 481 out2: 482 vput(dvp); 483 return (error); 484 } 485 486 /* 487 * Rename system call. 488 * rename("foo", "bar"); 489 * is essentially 490 * unlink("bar"); 491 * link("foo", "bar"); 492 * unlink("foo"); 493 * but ``atomically''. Can't do full commit without saving state in the 494 * inode on disk which isn't feasible at this time. Best we can do is 495 * always guarantee the target exists. 496 * 497 * Basic algorithm is: 498 * 499 * 1) Bump link count on source while we're linking it to the 500 * target. This also ensure the inode won't be deleted out 501 * from underneath us while we work (it may be truncated by 502 * a concurrent `trunc' or `open' for creation). 503 * 2) Link source to destination. If destination already exists, 504 * delete it first. 505 * 3) Unlink source reference to inode if still around. If a 506 * directory was moved and the parent of the destination 507 * is different from the source, patch the ".." entry in the 508 * directory. 509 */ 510 int 511 ext2fs_rename(void *v) 512 { 513 struct vop_rename_args *ap = v; 514 struct vnode *tvp = ap->a_tvp; 515 struct vnode *tdvp = ap->a_tdvp; 516 struct vnode *fvp = ap->a_fvp; 517 struct vnode *fdvp = ap->a_fdvp; 518 struct componentname *tcnp = ap->a_tcnp; 519 struct componentname *fcnp = ap->a_fcnp; 520 struct inode *ip, *xp, *dp; 521 struct proc *p = fcnp->cn_proc; 522 struct ext2fs_dirtemplate dirbuf; 523 /* struct timespec ts; */ 524 int doingdirectory = 0, oldparent = 0, newparent = 0; 525 int error = 0; 526 u_char namlen; 527 528 #ifdef DIAGNOSTIC 529 if ((tcnp->cn_flags & HASBUF) == 0 || 530 (fcnp->cn_flags & HASBUF) == 0) 531 panic("ext2fs_rename: no name"); 532 #endif 533 /* 534 * Check for cross-device rename. 535 */ 536 if ((fvp->v_mount != tdvp->v_mount) || 537 (tvp && (fvp->v_mount != tvp->v_mount))) { 538 error = EXDEV; 539 abortit: 540 VOP_ABORTOP(tdvp, tcnp); /* XXX, why not in NFS? */ 541 if (tdvp == tvp) 542 vrele(tdvp); 543 else 544 vput(tdvp); 545 if (tvp) 546 vput(tvp); 547 VOP_ABORTOP(fdvp, fcnp); /* XXX, why not in NFS? */ 548 vrele(fdvp); 549 vrele(fvp); 550 return (error); 551 } 552 553 /* 554 * Check if just deleting a link name. 555 */ 556 if (tvp && ((VTOI(tvp)->i_e2fs_flags & (EXT2_IMMUTABLE | EXT2_APPEND)) || 557 (VTOI(tdvp)->i_e2fs_flags & EXT2_APPEND))) { 558 error = EPERM; 559 goto abortit; 560 } 561 if (fvp == tvp) { 562 if (fvp->v_type == VDIR) { 563 error = EINVAL; 564 goto abortit; 565 } 566 567 /* Release destination completely. */ 568 VOP_ABORTOP(tdvp, tcnp); 569 vput(tdvp); 570 vput(tvp); 571 572 /* Delete source. */ 573 vrele(fdvp); 574 vrele(fvp); 575 fcnp->cn_flags &= ~MODMASK; 576 fcnp->cn_flags |= LOCKPARENT | LOCKLEAF; 577 if ((fcnp->cn_flags & SAVESTART) == 0) 578 panic("ext2fs_rename: lost from startdir"); 579 fcnp->cn_nameiop = DELETE; 580 (void) vfs_relookup(fdvp, &fvp, fcnp); 581 return (VOP_REMOVE(fdvp, fvp, fcnp)); 582 } 583 if ((error = vn_lock(fvp, LK_EXCLUSIVE, p)) != 0) 584 goto abortit; 585 dp = VTOI(fdvp); 586 ip = VTOI(fvp); 587 if ((nlink_t)ip->i_e2fs_nlink >= LINK_MAX) { 588 VOP_UNLOCK(fvp, p); 589 error = EMLINK; 590 goto abortit; 591 } 592 if ((ip->i_e2fs_flags & (EXT2_IMMUTABLE | EXT2_APPEND)) || 593 (dp->i_e2fs_flags & EXT2_APPEND)) { 594 VOP_UNLOCK(fvp, p); 595 error = EPERM; 596 goto abortit; 597 } 598 if ((ip->i_e2fs_mode & IFMT) == IFDIR) { 599 error = VOP_ACCESS(fvp, VWRITE, tcnp->cn_cred, tcnp->cn_proc); 600 if (!error && tvp) 601 error = VOP_ACCESS(tvp, VWRITE, tcnp->cn_cred, 602 tcnp->cn_proc); 603 if (error) { 604 VOP_UNLOCK(fvp, p); 605 error = EACCES; 606 goto abortit; 607 } 608 /* 609 * Avoid ".", "..", and aliases of "." for obvious reasons. 610 */ 611 if ((fcnp->cn_namelen == 1 && fcnp->cn_nameptr[0] == '.') || 612 dp == ip || 613 (fcnp->cn_flags&ISDOTDOT) || 614 (tcnp->cn_flags & ISDOTDOT) || 615 (ip->i_flag & IN_RENAME)) { 616 VOP_UNLOCK(fvp, p); 617 error = EINVAL; 618 goto abortit; 619 } 620 ip->i_flag |= IN_RENAME; 621 oldparent = dp->i_number; 622 doingdirectory++; 623 } 624 vrele(fdvp); 625 626 /* 627 * When the target exists, both the directory 628 * and target vnodes are returned locked. 629 */ 630 dp = VTOI(tdvp); 631 xp = NULL; 632 if (tvp) 633 xp = VTOI(tvp); 634 635 /* 636 * 1) Bump link count while we're moving stuff 637 * around. If we crash somewhere before 638 * completing our work, the link count 639 * may be wrong, but correctable. 640 */ 641 ip->i_e2fs_nlink++; 642 ip->i_flag |= IN_CHANGE; 643 if ((error = ext2fs_update(ip, 1)) != 0) { 644 VOP_UNLOCK(fvp, p); 645 goto bad; 646 } 647 648 /* 649 * If ".." must be changed (ie the directory gets a new 650 * parent) then the source directory must not be in the 651 * directory hierarchy above the target, as this would 652 * orphan everything below the source directory. Also 653 * the user must have write permission in the source so 654 * as to be able to change "..". We must repeat the call 655 * to namei, as the parent directory is unlocked by the 656 * call to checkpath(). 657 */ 658 error = VOP_ACCESS(fvp, VWRITE, tcnp->cn_cred, tcnp->cn_proc); 659 VOP_UNLOCK(fvp, p); 660 if (oldparent != dp->i_number) 661 newparent = dp->i_number; 662 if (doingdirectory && newparent) { 663 if (error) /* write access check above */ 664 goto bad; 665 if (xp != NULL) 666 vput(tvp); 667 error = ext2fs_checkpath(ip, dp, tcnp->cn_cred); 668 if (error != 0) 669 goto out; 670 if ((tcnp->cn_flags & SAVESTART) == 0) 671 panic("ext2fs_rename: lost to startdir"); 672 if ((error = vfs_relookup(tdvp, &tvp, tcnp)) != 0) 673 goto out; 674 dp = VTOI(tdvp); 675 xp = NULL; 676 if (tvp) 677 xp = VTOI(tvp); 678 } 679 /* 680 * 2) If target doesn't exist, link the target 681 * to the source and unlink the source. 682 * Otherwise, rewrite the target directory 683 * entry to reference the source inode and 684 * expunge the original entry's existence. 685 */ 686 if (xp == NULL) { 687 if (dp->i_dev != ip->i_dev) 688 panic("rename: EXDEV"); 689 /* 690 * Account for ".." in new directory. 691 * When source and destination have the same 692 * parent we don't fool with the link count. 693 */ 694 if (doingdirectory && newparent) { 695 if ((nlink_t)dp->i_e2fs_nlink >= LINK_MAX) { 696 error = EMLINK; 697 goto bad; 698 } 699 dp->i_e2fs_nlink++; 700 dp->i_flag |= IN_CHANGE; 701 if ((error = ext2fs_update(dp, 1)) != 0) 702 goto bad; 703 } 704 error = ext2fs_direnter(ip, tdvp, tcnp); 705 if (error != 0) { 706 if (doingdirectory && newparent) { 707 dp->i_e2fs_nlink--; 708 dp->i_flag |= IN_CHANGE; 709 (void)ext2fs_update(dp, 1); 710 } 711 goto bad; 712 } 713 vput(tdvp); 714 } else { 715 if (xp->i_dev != dp->i_dev || xp->i_dev != ip->i_dev) 716 panic("rename: EXDEV"); 717 /* 718 * Short circuit rename(foo, foo). 719 */ 720 if (xp->i_number == ip->i_number) 721 panic("rename: same file"); 722 /* 723 * If the parent directory is "sticky", then the user must 724 * own the parent directory, or the destination of the rename, 725 * otherwise the destination may not be changed (except by 726 * root). This implements append-only directories. 727 */ 728 if ((dp->i_e2fs_mode & S_ISTXT) && tcnp->cn_cred->cr_uid != 0 && 729 tcnp->cn_cred->cr_uid != dp->i_e2fs_uid && 730 xp->i_e2fs_uid != tcnp->cn_cred->cr_uid) { 731 error = EPERM; 732 goto bad; 733 } 734 /* 735 * Target must be empty if a directory and have no links 736 * to it. Also, ensure source and target are compatible 737 * (both directories, or both not directories). 738 */ 739 if ((xp->i_e2fs_mode & IFMT) == IFDIR) { 740 if (!ext2fs_dirempty(xp, dp->i_number, tcnp->cn_cred) || 741 xp->i_e2fs_nlink > 2) { 742 error = ENOTEMPTY; 743 goto bad; 744 } 745 if (!doingdirectory) { 746 error = ENOTDIR; 747 goto bad; 748 } 749 cache_purge(tdvp); 750 } else if (doingdirectory) { 751 error = EISDIR; 752 goto bad; 753 } 754 error = ext2fs_dirrewrite(dp, ip, tcnp); 755 if (error != 0) 756 goto bad; 757 /* 758 * If the target directory is in the same 759 * directory as the source directory, 760 * decrement the link count on the parent 761 * of the target directory. 762 */ 763 if (doingdirectory && !newparent) { 764 dp->i_e2fs_nlink--; 765 dp->i_flag |= IN_CHANGE; 766 } 767 vput(tdvp); 768 /* 769 * Adjust the link count of the target to 770 * reflect the dirrewrite above. If this is 771 * a directory it is empty and there are 772 * no links to it, so we can squash the inode and 773 * any space associated with it. We disallowed 774 * renaming over top of a directory with links to 775 * it above, as the remaining link would point to 776 * a directory without "." or ".." entries. 777 */ 778 xp->i_e2fs_nlink--; 779 if (doingdirectory) { 780 if (--xp->i_e2fs_nlink != 0) 781 panic("rename: linked directory"); 782 error = ext2fs_truncate(xp, (off_t)0, IO_SYNC, 783 tcnp->cn_cred); 784 } 785 xp->i_flag |= IN_CHANGE; 786 vput(tvp); 787 xp = NULL; 788 } 789 790 /* 791 * 3) Unlink the source. 792 */ 793 fcnp->cn_flags &= ~MODMASK; 794 fcnp->cn_flags |= LOCKPARENT | LOCKLEAF; 795 if ((fcnp->cn_flags & SAVESTART) == 0) 796 panic("ext2fs_rename: lost from startdir"); 797 (void) vfs_relookup(fdvp, &fvp, fcnp); 798 if (fvp != NULL) { 799 xp = VTOI(fvp); 800 dp = VTOI(fdvp); 801 } else { 802 /* 803 * From name has disappeared. 804 */ 805 if (doingdirectory) 806 panic("ext2fs_rename: lost dir entry"); 807 vrele(ap->a_fvp); 808 return (0); 809 } 810 /* 811 * Ensure that the directory entry still exists and has not 812 * changed while the new name has been entered. If the source is 813 * a file then the entry may have been unlinked or renamed. In 814 * either case there is no further work to be done. If the source 815 * is a directory then it cannot have been rmdir'ed; its link 816 * count of three would cause a rmdir to fail with ENOTEMPTY. 817 * The IRENAME flag ensures that it cannot be moved by another 818 * rename. 819 */ 820 if (xp != ip) { 821 if (doingdirectory) 822 panic("ext2fs_rename: lost dir entry"); 823 } else { 824 /* 825 * If the source is a directory with a 826 * new parent, the link count of the old 827 * parent directory must be decremented 828 * and ".." set to point to the new parent. 829 */ 830 if (doingdirectory && newparent) { 831 dp->i_e2fs_nlink--; 832 dp->i_flag |= IN_CHANGE; 833 error = vn_rdwr(UIO_READ, fvp, (caddr_t)&dirbuf, 834 sizeof (struct ext2fs_dirtemplate), (off_t)0, 835 UIO_SYSSPACE, IO_NODELOCKED, 836 tcnp->cn_cred, NULL, curproc); 837 if (error == 0) { 838 namlen = dirbuf.dotdot_namlen; 839 if (namlen != 2 || 840 dirbuf.dotdot_name[0] != '.' || 841 dirbuf.dotdot_name[1] != '.') { 842 ufs_dirbad(xp, (doff_t)12, 843 "ext2fs_rename: mangled dir"); 844 } else { 845 dirbuf.dotdot_ino = htole32(newparent); 846 (void) vn_rdwr(UIO_WRITE, fvp, 847 (caddr_t)&dirbuf, 848 sizeof (struct dirtemplate), 849 (off_t)0, UIO_SYSSPACE, 850 IO_NODELOCKED|IO_SYNC, 851 tcnp->cn_cred, NULL, curproc); 852 cache_purge(fdvp); 853 } 854 } 855 } 856 error = ext2fs_dirremove(fdvp, fcnp); 857 if (!error) { 858 xp->i_e2fs_nlink--; 859 xp->i_flag |= IN_CHANGE; 860 } 861 xp->i_flag &= ~IN_RENAME; 862 } 863 if (dp) 864 vput(fdvp); 865 if (xp) 866 vput(fvp); 867 vrele(ap->a_fvp); 868 return (error); 869 870 bad: 871 if (xp) 872 vput(ITOV(xp)); 873 vput(ITOV(dp)); 874 out: 875 if (doingdirectory) 876 ip->i_flag &= ~IN_RENAME; 877 if (vn_lock(fvp, LK_EXCLUSIVE, p) == 0) { 878 ip->i_e2fs_nlink--; 879 ip->i_flag |= IN_CHANGE; 880 vput(fvp); 881 } else 882 vrele(fvp); 883 return (error); 884 } 885 886 /* 887 * Mkdir system call 888 */ 889 int 890 ext2fs_mkdir(void *v) 891 { 892 struct vop_mkdir_args *ap = v; 893 struct vnode *dvp = ap->a_dvp; 894 struct vattr *vap = ap->a_vap; 895 struct componentname *cnp = ap->a_cnp; 896 struct inode *ip, *dp; 897 struct vnode *tvp; 898 struct ext2fs_dirtemplate dirtemplate; 899 mode_t dmode; 900 int error; 901 902 #ifdef DIAGNOSTIC 903 if ((cnp->cn_flags & HASBUF) == 0) 904 panic("ext2fs_mkdir: no name"); 905 #endif 906 dp = VTOI(dvp); 907 if ((nlink_t)dp->i_e2fs_nlink >= LINK_MAX) { 908 error = EMLINK; 909 goto out; 910 } 911 dmode = vap->va_mode & ACCESSPERMS; 912 dmode |= IFDIR; 913 /* 914 * Must simulate part of ext2fs_makeinode here to acquire the inode, 915 * but not have it entered in the parent directory. The entry is 916 * made later after writing "." and ".." entries. 917 */ 918 if ((error = ext2fs_inode_alloc(dp, dmode, cnp->cn_cred, &tvp)) != 0) 919 goto out; 920 ip = VTOI(tvp); 921 ip->i_e2fs_uid = cnp->cn_cred->cr_uid; 922 ip->i_e2fs_gid = dp->i_e2fs_gid; 923 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE; 924 ip->i_e2fs_mode = dmode; 925 tvp->v_type = VDIR; /* Rest init'd in getnewvnode(). */ 926 ip->i_e2fs_nlink = 2; 927 error = ext2fs_update(ip, 1); 928 929 /* 930 * Bump link count in parent directory 931 * to reflect work done below. Should 932 * be done before reference is created 933 * so reparation is possible if we crash. 934 */ 935 dp->i_e2fs_nlink++; 936 dp->i_flag |= IN_CHANGE; 937 if ((error = ext2fs_update(dp, 1)) != 0) 938 goto bad; 939 940 /* Initialize directory with "." and ".." from static template. */ 941 memset(&dirtemplate, 0, sizeof(dirtemplate)); 942 dirtemplate.dot_ino = htole32(ip->i_number); 943 dirtemplate.dot_reclen = htole16(12); 944 dirtemplate.dot_namlen = 1; 945 if (ip->i_e2fs->e2fs.e2fs_rev > E2FS_REV0 && 946 (ip->i_e2fs->e2fs.e2fs_features_incompat & EXT2F_INCOMPAT_FTYPE)) { 947 dirtemplate.dot_type = EXT2_FT_DIR; 948 } 949 dirtemplate.dot_name[0] = '.'; 950 dirtemplate.dotdot_ino = htole32(dp->i_number); 951 dirtemplate.dotdot_reclen = htole16(VTOI(dvp)->i_e2fs->e2fs_bsize - 12); 952 dirtemplate.dotdot_namlen = 2; 953 if (ip->i_e2fs->e2fs.e2fs_rev > E2FS_REV0 && 954 (ip->i_e2fs->e2fs.e2fs_features_incompat & EXT2F_INCOMPAT_FTYPE)) { 955 dirtemplate.dotdot_type = EXT2_FT_DIR; 956 } 957 dirtemplate.dotdot_name[0] = dirtemplate.dotdot_name[1] = '.'; 958 error = vn_rdwr(UIO_WRITE, tvp, (caddr_t)&dirtemplate, 959 sizeof (dirtemplate), (off_t)0, UIO_SYSSPACE, 960 IO_NODELOCKED|IO_SYNC, cnp->cn_cred, NULL, curproc); 961 if (error) { 962 dp->i_e2fs_nlink--; 963 dp->i_flag |= IN_CHANGE; 964 goto bad; 965 } 966 if (VTOI(dvp)->i_e2fs->e2fs_bsize > 967 VFSTOUFS(dvp->v_mount)->um_mountp->mnt_stat.f_bsize) 968 panic("ext2fs_mkdir: blksize"); /* XXX should grow with balloc() */ 969 else { 970 error = ext2fs_setsize(ip, VTOI(dvp)->i_e2fs->e2fs_bsize); 971 if (error) { 972 dp->i_e2fs_nlink--; 973 dp->i_flag |= IN_CHANGE; 974 goto bad; 975 } 976 ip->i_flag |= IN_CHANGE; 977 } 978 979 /* Directory set up, now install its entry in the parent directory. */ 980 error = ext2fs_direnter(ip, dvp, cnp); 981 if (error != 0) { 982 dp->i_e2fs_nlink--; 983 dp->i_flag |= IN_CHANGE; 984 } 985 bad: 986 /* 987 * No need to do an explicit VOP_TRUNCATE here, vrele will do this 988 * for us because we set the link count to 0. 989 */ 990 if (error) { 991 ip->i_e2fs_nlink = 0; 992 ip->i_flag |= IN_CHANGE; 993 vput(tvp); 994 } else 995 *ap->a_vpp = tvp; 996 out: 997 pool_put(&namei_pool, cnp->cn_pnbuf); 998 vput(dvp); 999 return (error); 1000 } 1001 1002 /* 1003 * Rmdir system call. 1004 */ 1005 int 1006 ext2fs_rmdir(void *v) 1007 { 1008 struct vop_rmdir_args *ap = v; 1009 struct vnode *vp = ap->a_vp; 1010 struct vnode *dvp = ap->a_dvp; 1011 struct componentname *cnp = ap->a_cnp; 1012 struct inode *ip, *dp; 1013 int error; 1014 1015 ip = VTOI(vp); 1016 dp = VTOI(dvp); 1017 /* 1018 * No rmdir "." please. 1019 */ 1020 if (dp == ip) { 1021 vrele(dvp); 1022 vput(vp); 1023 return (EINVAL); 1024 } 1025 /* 1026 * Verify the directory is empty (and valid). 1027 * (Rmdir ".." won't be valid since 1028 * ".." will contain a reference to 1029 * the current directory and thus be 1030 * non-empty.) 1031 */ 1032 error = 0; 1033 if (ip->i_e2fs_nlink != 2 || 1034 !ext2fs_dirempty(ip, dp->i_number, cnp->cn_cred)) { 1035 error = ENOTEMPTY; 1036 goto out; 1037 } 1038 if ((dp->i_e2fs_flags & EXT2_APPEND) || 1039 (ip->i_e2fs_flags & (EXT2_IMMUTABLE | EXT2_APPEND))) { 1040 error = EPERM; 1041 goto out; 1042 } 1043 /* 1044 * Delete reference to directory before purging 1045 * inode. If we crash in between, the directory 1046 * will be reattached to lost+found, 1047 */ 1048 error = ext2fs_dirremove(dvp, cnp); 1049 if (error != 0) 1050 goto out; 1051 dp->i_e2fs_nlink--; 1052 dp->i_flag |= IN_CHANGE; 1053 cache_purge(dvp); 1054 vput(dvp); 1055 dvp = NULL; 1056 /* 1057 * Truncate inode. The only stuff left 1058 * in the directory is "." and "..". The 1059 * "." reference is inconsequential since 1060 * we're quashing it. The ".." reference 1061 * has already been adjusted above. We've 1062 * removed the "." reference and the reference 1063 * in the parent directory, but there may be 1064 * other hard links so decrement by 2 and 1065 * worry about them later. 1066 */ 1067 ip->i_e2fs_nlink -= 2; 1068 error = ext2fs_truncate(ip, (off_t)0, IO_SYNC, cnp->cn_cred); 1069 cache_purge(ITOV(ip)); 1070 out: 1071 if (dvp) 1072 vput(dvp); 1073 vput(vp); 1074 return (error); 1075 } 1076 1077 /* 1078 * symlink -- make a symbolic link 1079 */ 1080 int 1081 ext2fs_symlink(void *v) 1082 { 1083 struct vop_symlink_args *ap = v; 1084 struct vnode *vp, **vpp = ap->a_vpp; 1085 struct inode *ip; 1086 int len, error; 1087 1088 error = ext2fs_makeinode(IFLNK | ap->a_vap->va_mode, ap->a_dvp, 1089 vpp, ap->a_cnp); 1090 if (error) 1091 return (error); 1092 vp = *vpp; 1093 len = strlen(ap->a_target); 1094 if (len < EXT2_MAXSYMLINKLEN) { 1095 ip = VTOI(vp); 1096 memcpy(ip->i_e2din->e2di_shortlink, ap->a_target, len); 1097 error = ext2fs_setsize(ip, len); 1098 if (error) 1099 goto bad; 1100 ip->i_flag |= IN_CHANGE | IN_UPDATE; 1101 } else 1102 error = vn_rdwr(UIO_WRITE, vp, ap->a_target, len, (off_t)0, 1103 UIO_SYSSPACE, IO_NODELOCKED, ap->a_cnp->cn_cred, NULL, 1104 curproc); 1105 bad: 1106 vput(vp); 1107 return (error); 1108 } 1109 1110 /* 1111 * Return target name of a symbolic link 1112 */ 1113 int 1114 ext2fs_readlink(void *v) 1115 { 1116 struct vop_readlink_args *ap = v; 1117 struct vnode *vp = ap->a_vp; 1118 struct inode *ip = VTOI(vp); 1119 u_int64_t isize; 1120 1121 isize = ext2fs_size(ip); 1122 if (isize < EXT2_MAXSYMLINKLEN) { 1123 return (uiomove((char *)ip->i_e2din->e2di_shortlink, isize, 1124 ap->a_uio)); 1125 } 1126 return (VOP_READ(vp, ap->a_uio, 0, ap->a_cred)); 1127 } 1128 1129 /* 1130 * Return POSIX pathconf information applicable to ext2 filesystems. 1131 */ 1132 int 1133 ext2fs_pathconf(void *v) 1134 { 1135 struct vop_pathconf_args *ap = v; 1136 int error = 0; 1137 1138 switch (ap->a_name) { 1139 case _PC_TIMESTAMP_RESOLUTION: 1140 *ap->a_retval = 1000000000; /* 1 billion nanoseconds */ 1141 break; 1142 default: 1143 return (ufs_pathconf(v)); 1144 } 1145 1146 return (error); 1147 } 1148 1149 /* 1150 * Advisory record locking support 1151 */ 1152 int 1153 ext2fs_advlock(void *v) 1154 { 1155 struct vop_advlock_args *ap = v; 1156 struct inode *ip = VTOI(ap->a_vp); 1157 1158 return (lf_advlock(&ip->i_lockf, ext2fs_size(ip), ap->a_id, ap->a_op, 1159 ap->a_fl, ap->a_flags)); 1160 } 1161 1162 /* 1163 * Allocate a new inode. 1164 */ 1165 int 1166 ext2fs_makeinode(int mode, struct vnode *dvp, struct vnode **vpp, 1167 struct componentname *cnp) 1168 { 1169 struct inode *ip, *pdir; 1170 struct vnode *tvp; 1171 int error; 1172 1173 pdir = VTOI(dvp); 1174 #ifdef DIAGNOSTIC 1175 if ((cnp->cn_flags & HASBUF) == 0) 1176 panic("ext2fs_makeinode: no name"); 1177 #endif 1178 *vpp = NULL; 1179 if ((mode & IFMT) == 0) 1180 mode |= IFREG; 1181 1182 if ((error = ext2fs_inode_alloc(pdir, mode, cnp->cn_cred, &tvp)) 1183 != 0) { 1184 pool_put(&namei_pool, cnp->cn_pnbuf); 1185 vput(dvp); 1186 return (error); 1187 } 1188 ip = VTOI(tvp); 1189 ip->i_e2fs_gid = pdir->i_e2fs_gid; 1190 ip->i_e2fs_uid = cnp->cn_cred->cr_uid; 1191 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE; 1192 ip->i_e2fs_mode = mode; 1193 tvp->v_type = IFTOVT(mode); /* Rest init'd in getnewvnode(). */ 1194 ip->i_e2fs_nlink = 1; 1195 if ((ip->i_e2fs_mode & ISGID) && 1196 !groupmember(ip->i_e2fs_gid, cnp->cn_cred) && 1197 suser_ucred(cnp->cn_cred)) 1198 ip->i_e2fs_mode &= ~ISGID; 1199 1200 /* 1201 * Make sure inode goes to disk before directory entry. 1202 */ 1203 if ((error = ext2fs_update(ip, 1)) != 0) 1204 goto bad; 1205 error = ext2fs_direnter(ip, dvp, cnp); 1206 if (error != 0) 1207 goto bad; 1208 if ((cnp->cn_flags & SAVESTART) == 0) 1209 pool_put(&namei_pool, cnp->cn_pnbuf); 1210 vput(dvp); 1211 *vpp = tvp; 1212 return (0); 1213 1214 bad: 1215 /* 1216 * Write error occurred trying to update the inode 1217 * or the directory so must deallocate the inode. 1218 */ 1219 pool_put(&namei_pool, cnp->cn_pnbuf); 1220 vput(dvp); 1221 ip->i_e2fs_nlink = 0; 1222 ip->i_flag |= IN_CHANGE; 1223 tvp->v_type = VNON; 1224 vput(tvp); 1225 return (error); 1226 } 1227 1228 /* 1229 * Synch an open file. 1230 */ 1231 /* ARGSUSED */ 1232 int 1233 ext2fs_fsync(void *v) 1234 { 1235 struct vop_fsync_args *ap = v; 1236 struct vnode *vp = ap->a_vp; 1237 1238 vflushbuf(vp, ap->a_waitfor == MNT_WAIT); 1239 return (ext2fs_update(VTOI(ap->a_vp), ap->a_waitfor == MNT_WAIT)); 1240 } 1241 1242 /* 1243 * Reclaim an inode so that it can be used for other purposes. 1244 */ 1245 int 1246 ext2fs_reclaim(void *v) 1247 { 1248 struct vop_reclaim_args *ap = v; 1249 struct vnode *vp = ap->a_vp; 1250 struct inode *ip; 1251 #ifdef DIAGNOSTIC 1252 extern int prtactive; 1253 1254 if (prtactive && vp->v_usecount != 0) 1255 vprint("ext2fs_reclaim: pushing active", vp); 1256 #endif 1257 1258 /* 1259 * Remove the inode from its hash chain. 1260 */ 1261 ip = VTOI(vp); 1262 ufs_ihashrem(ip); 1263 1264 /* 1265 * Purge old data structures associated with the inode. 1266 */ 1267 cache_purge(vp); 1268 if (ip->i_devvp) 1269 vrele(ip->i_devvp); 1270 1271 if (ip->i_e2din != NULL) 1272 pool_put(&ext2fs_dinode_pool, ip->i_e2din); 1273 1274 pool_put(&ext2fs_inode_pool, ip); 1275 1276 vp->v_data = NULL; 1277 1278 return (0); 1279 } 1280 1281 /* Global vfs data structures for ext2fs. */ 1282 struct vops ext2fs_vops = { 1283 .vop_lookup = ext2fs_lookup, 1284 .vop_create = ext2fs_create, 1285 .vop_mknod = ext2fs_mknod, 1286 .vop_open = ext2fs_open, 1287 .vop_close = ufs_close, 1288 .vop_access = ext2fs_access, 1289 .vop_getattr = ext2fs_getattr, 1290 .vop_setattr = ext2fs_setattr, 1291 .vop_read = ext2fs_read, 1292 .vop_write = ext2fs_write, 1293 .vop_ioctl = ufs_ioctl, 1294 .vop_poll = ufs_poll, 1295 .vop_kqfilter = vop_generic_kqfilter, 1296 .vop_fsync = ext2fs_fsync, 1297 .vop_remove = ext2fs_remove, 1298 .vop_link = ext2fs_link, 1299 .vop_rename = ext2fs_rename, 1300 .vop_mkdir = ext2fs_mkdir, 1301 .vop_rmdir = ext2fs_rmdir, 1302 .vop_symlink = ext2fs_symlink, 1303 .vop_readdir = ext2fs_readdir, 1304 .vop_readlink = ext2fs_readlink, 1305 .vop_abortop = vop_generic_abortop, 1306 .vop_inactive = ext2fs_inactive, 1307 .vop_reclaim = ext2fs_reclaim, 1308 .vop_lock = ufs_lock, 1309 .vop_unlock = ufs_unlock, 1310 .vop_bmap = ext2fs_bmap, 1311 .vop_strategy = ufs_strategy, 1312 .vop_print = ufs_print, 1313 .vop_islocked = ufs_islocked, 1314 .vop_pathconf = ext2fs_pathconf, 1315 .vop_advlock = ext2fs_advlock, 1316 .vop_bwrite = vop_generic_bwrite 1317 }; 1318 1319 struct vops ext2fs_specvops = { 1320 .vop_close = ufsspec_close, 1321 .vop_access = ext2fs_access, 1322 .vop_getattr = ext2fs_getattr, 1323 .vop_setattr = ext2fs_setattr, 1324 .vop_read = ufsspec_read, 1325 .vop_write = ufsspec_write, 1326 .vop_fsync = ext2fs_fsync, 1327 .vop_inactive = ext2fs_inactive, 1328 .vop_reclaim = ext2fs_reclaim, 1329 .vop_lock = ufs_lock, 1330 .vop_unlock = ufs_unlock, 1331 .vop_print = ufs_print, 1332 .vop_islocked = ufs_islocked, 1333 1334 /* XXX: Keep in sync with spec_vops. */ 1335 .vop_lookup = vop_generic_lookup, 1336 .vop_create = spec_badop, 1337 .vop_mknod = spec_badop, 1338 .vop_open = spec_open, 1339 .vop_ioctl = spec_ioctl, 1340 .vop_poll = spec_poll, 1341 .vop_kqfilter = spec_kqfilter, 1342 .vop_revoke = vop_generic_revoke, 1343 .vop_remove = spec_badop, 1344 .vop_link = spec_badop, 1345 .vop_rename = spec_badop, 1346 .vop_mkdir = spec_badop, 1347 .vop_rmdir = spec_badop, 1348 .vop_symlink = spec_badop, 1349 .vop_readdir = spec_badop, 1350 .vop_readlink = spec_badop, 1351 .vop_abortop = spec_badop, 1352 .vop_bmap = vop_generic_bmap, 1353 .vop_strategy = spec_strategy, 1354 .vop_pathconf = spec_pathconf, 1355 .vop_advlock = spec_advlock, 1356 .vop_bwrite = vop_generic_bwrite, 1357 }; 1358 1359 #ifdef FIFO 1360 struct vops ext2fs_fifovops = { 1361 .vop_close = ufsfifo_close, 1362 .vop_access = ufsfifo_close, 1363 .vop_getattr = ext2fs_getattr, 1364 .vop_setattr = ext2fs_setattr, 1365 .vop_read = ufsfifo_read, 1366 .vop_write = ufsfifo_write, 1367 .vop_fsync = ext2fs_fsync, 1368 .vop_inactive = ext2fs_inactive, 1369 .vop_reclaim = ext2fsfifo_reclaim, 1370 .vop_lock = ufs_lock, 1371 .vop_unlock = ufs_unlock, 1372 .vop_print = ufs_print, 1373 .vop_islocked = ufs_islocked, 1374 .vop_bwrite = vop_generic_bwrite, 1375 1376 /* XXX: Keep in sync with fifo_vops */ 1377 .vop_lookup = vop_generic_lookup, 1378 .vop_create = fifo_badop, 1379 .vop_mknod = fifo_badop, 1380 .vop_open = fifo_open, 1381 .vop_ioctl = fifo_ioctl, 1382 .vop_poll = fifo_poll, 1383 .vop_kqfilter = fifo_kqfilter, 1384 .vop_revoke = vop_generic_revoke, 1385 .vop_remove = fifo_badop, 1386 .vop_link = fifo_badop, 1387 .vop_rename = fifo_badop, 1388 .vop_mkdir = fifo_badop, 1389 .vop_rmdir = fifo_badop, 1390 .vop_symlink = fifo_badop, 1391 .vop_readdir = fifo_badop, 1392 .vop_readlink = fifo_badop, 1393 .vop_abortop = fifo_badop, 1394 .vop_bmap = vop_generic_bmap, 1395 .vop_strategy = fifo_badop, 1396 .vop_pathconf = fifo_pathconf, 1397 .vop_advlock = fifo_advlock, 1398 }; 1399 1400 int 1401 ext2fsfifo_reclaim(void *v) 1402 { 1403 fifo_reclaim(v); 1404 return (ext2fs_reclaim(v)); 1405 } 1406 #endif /* FIFO */ 1407