efs_vnops.c revision 1.4 1 /* $NetBSD: efs_vnops.c,v 1.4 2007/07/29 13:31:09 ad Exp $ */
2
3 /*
4 * Copyright (c) 2006 Stephen M. Rumble <rumble (at) ephemeral.org>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19 #include <sys/cdefs.h>
20 __KERNEL_RCSID(0, "$NetBSD: efs_vnops.c,v 1.4 2007/07/29 13:31:09 ad Exp $");
21
22 #include <sys/param.h>
23 #include <sys/systm.h>
24 #include <sys/proc.h>
25 #include <sys/kernel.h>
26 #include <sys/vnode.h>
27 #include <sys/mount.h>
28 #include <sys/malloc.h>
29 #include <sys/namei.h>
30 #include <sys/dirent.h>
31 #include <sys/lockf.h>
32 #include <sys/unistd.h>
33
34 #include <miscfs/genfs/genfs.h>
35 #include <miscfs/genfs/genfs_node.h>
36
37 #include <fs/efs/efs.h>
38 #include <fs/efs/efs_sb.h>
39 #include <fs/efs/efs_dir.h>
40 #include <fs/efs/efs_genfs.h>
41 #include <fs/efs/efs_mount.h>
42 #include <fs/efs/efs_extent.h>
43 #include <fs/efs/efs_dinode.h>
44 #include <fs/efs/efs_inode.h>
45 #include <fs/efs/efs_subr.h>
46 #include <fs/efs/efs_ihash.h>
47
48 MALLOC_DECLARE(M_EFSTMP);
49
50 /*
51 * Lookup a pathname component in the given directory.
52 *
53 * Returns 0 on success.
54 */
55 static int
56 efs_lookup(void *v)
57 {
58 struct vop_lookup_args /* {
59 struct vnode *a_dvp;
60 struct vnode **a_vpp;
61 struct componentname *a_cnp;
62 } */ *ap = v;
63 struct componentname *cnp = ap->a_cnp;
64 struct vnode *vp;
65 ino_t ino;
66 int err, nameiop = cnp->cn_nameiop;
67
68 /* ensure that the directory can be accessed first */
69 err = VOP_ACCESS(ap->a_dvp, VEXEC, cnp->cn_cred, cnp->cn_lwp);
70 if (err)
71 return (err);
72
73 err = cache_lookup(ap->a_dvp, ap->a_vpp, cnp);
74 if (err != -1)
75 return (err);
76
77 /*
78 * Handle the three lookup types: '.', '..', and everything else.
79 */
80 if (cnp->cn_namelen == 1 && cnp->cn_nameptr[0] == '.') {
81 vref(ap->a_dvp);
82 *ap->a_vpp = ap->a_dvp;
83 } else if (cnp->cn_flags & ISDOTDOT) {
84 err = efs_inode_lookup(VFSTOEFS(ap->a_dvp->v_mount),
85 EFS_VTOI(ap->a_dvp), ap->a_cnp, &ino);
86 if (err)
87 return (err);
88
89 VOP_UNLOCK(ap->a_dvp, 0); /* preserve lock order */
90
91 err = VFS_VGET(ap->a_dvp->v_mount, ino, &vp);
92 if (err) {
93 vn_lock(ap->a_dvp, LK_EXCLUSIVE | LK_RETRY);
94 return (err);
95 }
96 vn_lock(ap->a_dvp, LK_EXCLUSIVE | LK_RETRY);
97 *ap->a_vpp = vp;
98 } else {
99 err = efs_inode_lookup(VFSTOEFS(ap->a_dvp->v_mount),
100 EFS_VTOI(ap->a_dvp), ap->a_cnp, &ino);
101 if (err) {
102 if (err == ENOENT && (cnp->cn_flags & MAKEENTRY) &&
103 nameiop != CREATE)
104 cache_enter(ap->a_dvp, NULL, cnp);
105 if (err == ENOENT && (nameiop == CREATE ||
106 nameiop == RENAME)) {
107 err = VOP_ACCESS(vp, VWRITE, cnp->cn_cred,
108 cnp->cn_lwp);
109 if (err)
110 return (err);
111 cnp->cn_flags |= SAVENAME;
112 return (EJUSTRETURN);
113 }
114 return (err);
115 }
116 err = VFS_VGET(ap->a_dvp->v_mount, ino, &vp);
117 if (err)
118 return (err);
119 *ap->a_vpp = vp;
120 }
121
122 if (cnp->cn_flags & MAKEENTRY)
123 cache_enter(ap->a_dvp, *ap->a_vpp, cnp);
124
125 return (0);
126 }
127
128 /*
129 * Determine the accessiblity of a file based on the permissions allowed by the
130 * specified credentials.
131 *
132 * Returns 0 on success.
133 */
134 static int
135 efs_access(void *v)
136 {
137 struct vop_access_args /* {
138 const struct vnodeop_desc *a_desc;
139 struct vnode *a_vp;
140 int a_mode;
141 struct ucred *a_cred;
142 struct lwp *a_l;
143 } */ *ap = v;
144 struct vnode *vp = ap->a_vp;
145 struct efs_inode *eip = EFS_VTOI(vp);
146
147 if ((ap->a_mode & VWRITE) && (vp->v_mount->mnt_flag & MNT_RDONLY))
148 return (EROFS);
149
150 return (vaccess(vp->v_type, eip->ei_mode, eip->ei_uid, eip->ei_gid,
151 ap->a_mode, ap->a_cred));
152 }
153
154 /*
155 * Get specific vnode attributes on a file. See vattr(9).
156 *
157 * Returns 0 on success.
158 */
159 static int
160 efs_getattr(void *v)
161 {
162 struct vop_getattr_args /* {
163 const struct vnodeop_desc *a_desc;
164 struct vnode *a_vp;
165 struct vattr *a_vap;
166 struct ucred *a_cred;
167 struct lwp *a_l;
168 } */ *ap = v;
169
170 struct vattr *vap = ap->a_vap;
171 struct efs_inode *eip = EFS_VTOI(ap->a_vp);
172
173 vattr_null(ap->a_vap);
174 vap->va_type = ap->a_vp->v_type;
175 vap->va_mode = eip->ei_mode;
176 vap->va_nlink = eip->ei_nlink;
177 vap->va_uid = eip->ei_uid;
178 vap->va_gid = eip->ei_gid;
179 vap->va_fsid = ap->a_vp->v_mount->mnt_stat.f_fsid;
180 vap->va_fileid = eip->ei_number;
181 vap->va_size = eip->ei_size;
182
183 if (ap->a_vp->v_type == VBLK)
184 vap->va_blocksize = BLKDEV_IOSIZE;
185 else if (ap->a_vp->v_type == VCHR)
186 vap->va_blocksize = MAXBSIZE;
187 else
188 vap->va_blocksize = EFS_BB_SIZE;
189
190 vap->va_atime.tv_sec = eip->ei_atime;
191 vap->va_mtime.tv_sec = eip->ei_mtime;
192 vap->va_ctime.tv_sec = eip->ei_ctime;
193 /* vap->va_birthtime = */
194 vap->va_gen = eip->ei_gen;
195 vap->va_flags = ap->a_vp->v_flag;
196
197 if (ap->a_vp->v_type == VBLK || ap->a_vp->v_type == VCHR) {
198 uint32_t dmaj, dmin;
199
200 if (be16toh(eip->ei_di.di_odev) != EFS_DINODE_ODEV_INVALID) {
201 dmaj = EFS_DINODE_ODEV_MAJ(be16toh(eip->ei_di.di_odev));
202 dmin = EFS_DINODE_ODEV_MIN(be16toh(eip->ei_di.di_odev));
203 } else {
204 dmaj = EFS_DINODE_NDEV_MAJ(be32toh(eip->ei_di.di_ndev));
205 dmin = EFS_DINODE_NDEV_MIN(be32toh(eip->ei_di.di_ndev));
206 }
207
208 vap->va_rdev = makedev(dmaj, dmin);
209 }
210
211 vap->va_bytes = eip->ei_size;
212 /* vap->va_filerev = */
213 /* vap->va_vaflags = */
214
215 return (0);
216 }
217
218 /*
219 * Read a file.
220 *
221 * Returns 0 on success.
222 */
223 static int
224 efs_read(void *v)
225 {
226 struct vop_read_args /* {
227 const struct vnodeop_desc *a_desc;
228 struct vnode *a_vp;
229 struct uio *a_uio;
230 int a_ioflag;
231 struct ucred *a_cred;
232 } */ *ap = v;
233 struct efs_extent ex;
234 struct efs_extent_iterator exi;
235 void *win;
236 struct uio *uio = ap->a_uio;
237 struct efs_inode *eip = EFS_VTOI(ap->a_vp);
238 off_t start;
239 vsize_t len;
240 int err, ret, flags;
241 const int advice = IO_ADV_DECODE(ap->a_ioflag);
242
243 if (ap->a_vp->v_type == VDIR)
244 return (EISDIR);
245
246 if (ap->a_vp->v_type != VREG)
247 return (EINVAL);
248
249 efs_extent_iterator_init(&exi, eip, uio->uio_offset);
250 ret = efs_extent_iterator_next(&exi, &ex);
251 while (ret == 0) {
252 if (uio->uio_offset < 0 || uio->uio_offset >= eip->ei_size ||
253 uio->uio_resid == 0)
254 break;
255
256 start = ex.ex_offset * EFS_BB_SIZE;
257 len = ex.ex_length * EFS_BB_SIZE;
258
259 if (!(uio->uio_offset >= start &&
260 uio->uio_offset < (start + len))) {
261 ret = efs_extent_iterator_next(&exi, &ex);
262 continue;
263 }
264
265 start = uio->uio_offset - start;
266
267 len = MIN(len - start, uio->uio_resid);
268 len = MIN(len, eip->ei_size - uio->uio_offset);
269
270 win = ubc_alloc(&ap->a_vp->v_uobj, uio->uio_offset,
271 &len, advice, UBC_READ);
272
273 flags = UBC_WANT_UNMAP(ap->a_vp) ? UBC_UNMAP : 0;
274
275 err = uiomove(win, len, uio);
276 ubc_release(win, flags);
277 if (err) {
278 EFS_DPRINTF(("efs_read: uiomove error %d\n",
279 err));
280 return (err);
281 }
282 }
283
284 return ((ret == -1) ? 0 : ret);
285 }
286
287 static int
288 efs_readdir(void *v)
289 {
290 struct vop_readdir_args /* {
291 const struct vnodeop_desc *a_desc;
292 struct vnode *a_vp;
293 struct uio *a_uio;
294 struct ucred *a_cred;
295 int *a_eofflag;
296 off_t **a_cookies;
297 int *a_ncookies;
298 } */ *ap = v;
299 struct efs_dinode edi;
300 struct efs_extent ex;
301 struct efs_extent_iterator exi;
302 struct buf *bp;
303 struct dirent *dp;
304 struct efs_dirent *de;
305 struct efs_dirblk *db;
306 struct uio *uio = ap->a_uio;
307 struct efs_inode *ei = EFS_VTOI(ap->a_vp);
308 off_t offset;
309 int i, j, err, ret, s, slot;
310
311 /* XXX - ncookies, cookies for NFS */
312
313 if (ap->a_vp->v_type != VDIR)
314 return (ENOTDIR);
315
316 offset = 0;
317
318 efs_extent_iterator_init(&exi, ei, 0);
319 while ((ret = efs_extent_iterator_next(&exi, &ex)) == 0) {
320 for (i = 0; i < ex.ex_length; i++) {
321 err = efs_bread(VFSTOEFS(ap->a_vp->v_mount),
322 ex.ex_bn + i, NULL, &bp);
323 if (err) {
324 brelse(bp);
325 return (err);
326 }
327
328 db = (struct efs_dirblk *)bp->b_data;
329
330 if (be16toh(db->db_magic) != EFS_DIRBLK_MAGIC) {
331 printf("efs_readdir: bad dirblk\n");
332 brelse(bp);
333 continue;
334 }
335
336 for (j = 0; j < db->db_slots; j++) {
337 slot = EFS_DIRENT_OFF_EXPND(db->db_space[j]);
338 if (slot == EFS_DIRBLK_SLOT_FREE)
339 continue;
340
341 if (!EFS_DIRENT_OFF_VALID(slot)) {
342 printf("efs_readdir: bad dirent\n");
343 continue;
344 }
345
346 de = EFS_DIRBLK_TO_DIRENT(db, slot);
347 s = _DIRENT_RECLEN(dp, de->de_namelen);
348
349 if (offset < uio->uio_offset) {
350 offset += s;
351 continue;
352 }
353
354 if (offset > uio->uio_offset) {
355 /* XXX - shouldn't happen, right? */
356 brelse(bp);
357 return (0);
358 }
359
360 if (s > uio->uio_resid) {
361 brelse(bp);
362 return (0);
363 }
364
365 dp = malloc(s, M_EFSTMP, M_ZERO | M_WAITOK);
366 dp->d_fileno = be32toh(de->de_inumber);
367 dp->d_reclen = s;
368 dp->d_namlen = de->de_namelen;
369 memcpy(dp->d_name, de->de_name,
370 de->de_namelen);
371 dp->d_name[de->de_namelen] = '\0';
372
373 /* look up inode to get type */
374 err = efs_read_inode(
375 VFSTOEFS(ap->a_vp->v_mount),
376 dp->d_fileno, NULL, &edi);
377 if (err) {
378 brelse(bp);
379 free(dp, M_EFSTMP);
380 return (err);
381 }
382
383 switch (be16toh(edi.di_mode) & EFS_IFMT) {
384 case EFS_IFIFO:
385 dp->d_type = DT_FIFO;
386 break;
387 case EFS_IFCHR:
388 dp->d_type = DT_CHR;
389 break;
390 case EFS_IFDIR:
391 dp->d_type = DT_DIR;
392 break;
393 case EFS_IFBLK:
394 dp->d_type = DT_BLK;
395 break;
396 case EFS_IFREG:
397 dp->d_type = DT_REG;
398 break;
399 case EFS_IFLNK:
400 dp->d_type = DT_LNK;
401 break;
402 case EFS_IFSOCK:
403 dp->d_type = DT_SOCK;
404 break;
405 default:
406 dp->d_type = DT_UNKNOWN;
407 break;
408 }
409
410 err = uiomove(dp, s, uio);
411 free(dp, M_EFSTMP);
412 if (err) {
413 brelse(bp);
414 return (err);
415 }
416
417 offset += s;
418 }
419
420 brelse(bp);
421 }
422 }
423
424 if (ret != -1)
425 return (ret);
426
427 if (ap->a_eofflag != NULL)
428 *ap->a_eofflag = true;
429
430 return (0);
431 }
432
433 static int
434 efs_readlink(void *v)
435 {
436 struct vop_readlink_args /* {
437 const struct vnodeop_desc *a_desc;
438 struct vnode *a_vp;
439 struct uio *a_uio;
440 struct ucred *a_cred;
441 } */ *ap = v;
442 struct uio *uio = ap->a_uio;
443 struct efs_inode *eip = EFS_VTOI(ap->a_vp);
444 char *buf;
445 size_t len;
446 int err, i;
447
448 if ((eip->ei_mode & EFS_IFMT) != EFS_IFLNK)
449 return (EINVAL);
450
451 if (uio->uio_resid < 1)
452 return (EINVAL);
453
454 buf = malloc(eip->ei_size + 1, M_EFSTMP, M_ZERO | M_WAITOK);
455
456 /* symlinks are either inlined in the inode, or in extents */
457 if (eip->ei_numextents == 0) {
458 if (eip->ei_size > sizeof(eip->ei_di.di_symlink)) {
459 EFS_DPRINTF(("efs_readlink: too big for inline\n"));
460 free(buf, M_EFSTMP);
461 return (EBADF);
462 }
463
464 memcpy(buf, eip->ei_di.di_symlink, eip->ei_size);
465 len = MIN(uio->uio_resid, eip->ei_size + 1);
466 } else {
467 struct efs_extent_iterator exi;
468 struct efs_extent ex;
469 struct buf *bp;
470 int resid, off, ret;
471
472 off = 0;
473 resid = eip->ei_size;
474
475 efs_extent_iterator_init(&exi, eip, 0);
476 while ((ret = efs_extent_iterator_next(&exi, &ex)) == 0) {
477 for (i = 0; i < ex.ex_length; i++) {
478 err = efs_bread(VFSTOEFS(ap->a_vp->v_mount),
479 ex.ex_bn + i, NULL, &bp);
480 if (err) {
481 brelse(bp);
482 free(buf, M_EFSTMP);
483 return (err);
484 }
485
486 len = MIN(resid, bp->b_bcount);
487 memcpy(buf + off, bp->b_data, len);
488 brelse(bp);
489
490 off += len;
491 resid -= len;
492
493 if (resid == 0)
494 break;
495 }
496
497 if (resid == 0)
498 break;
499 }
500
501 if (ret != 0 && ret != -1) {
502 free(buf, M_EFSTMP);
503 return (ret);
504 }
505
506 len = off + 1;
507 }
508
509 KASSERT(len >= 1 && len <= (eip->ei_size + 1));
510 buf[len - 1] = '\0';
511 err = uiomove(buf, len, uio);
512 free(buf, M_EFSTMP);
513
514 return (err);
515 }
516
517 /*
518 * Release an inactive vnode. The vnode _must_ be unlocked on return.
519 * It is either nolonger being used by the kernel, or an unmount is being
520 * forced.
521 *
522 * Returns 0 on success.
523 */
524 static int
525 efs_inactive(void *v)
526 {
527 struct vop_inactive_args /* {
528 const struct vnodeop_desc *a_desc;
529 struct vnode *a_vp;
530 struct lwp *a_l;
531 } */ *ap = v;
532 struct efs_inode *eip = EFS_VTOI(ap->a_vp);
533
534 VOP_UNLOCK(ap->a_vp, 0);
535
536 if (eip->ei_mode == 0)
537 vrecycle(ap->a_vp, NULL, ap->a_l);
538
539 return (0);
540 }
541
542 static int
543 efs_reclaim(void *v)
544 {
545 struct vop_reclaim_args /* {
546 const struct vnodeop_desc *a_desc;
547 struct vnode *a_vp;
548 struct lwp *a_l;
549 } */ *ap = v;
550 struct vnode *vp = ap->a_vp;
551
552 efs_ihashrem(EFS_VTOI(vp));
553 cache_purge(vp);
554 genfs_node_destroy(vp);
555 pool_put(&efs_inode_pool, vp->v_data);
556 vp->v_data = NULL;
557
558 return (0);
559 }
560
561 static int
562 efs_bmap(void *v)
563 {
564 struct vop_bmap_args /* {
565 const struct vnodeop_desc *a_desc;
566 struct vnode *a_vp;
567 daddr_t a_bn;
568 struct vnode **a_vpp;
569 daddr_t *a_bnp;
570 int *a_runp;
571 } */ *ap = v;
572 struct efs_extent ex;
573 struct efs_extent_iterator exi;
574 struct vnode *vp = ap->a_vp;
575 struct efs_inode *eip = EFS_VTOI(vp);
576 bool found;
577 int ret;
578
579 if (ap->a_vpp != NULL)
580 *ap->a_vpp = VFSTOEFS(vp->v_mount)->em_devvp;
581
582 found = false;
583 efs_extent_iterator_init(&exi, eip, ap->a_bn * EFS_BB_SIZE);
584 while ((ret = efs_extent_iterator_next(&exi, &ex)) == 0) {
585 if (ap->a_bn >= ex.ex_offset &&
586 ap->a_bn < (ex.ex_offset + ex.ex_length)) {
587 found = true;
588 break;
589 }
590 }
591
592 KASSERT(!found || (found && ret == 0));
593
594 if (!found) {
595 EFS_DPRINTF(("efs_bmap: ap->a_bn not in extents\n"));
596 return ((ret == -1) ? EIO : ret);
597 }
598
599 if (ex.ex_magic != EFS_EXTENT_MAGIC) {
600 EFS_DPRINTF(("efs_bmap: exn.ex_magic != EFS_EXTENT_MAGIC\n"));
601 return (EIO);
602 }
603
604 if (ap->a_bn < ex.ex_offset) {
605 EFS_DPRINTF(("efs_bmap: ap->a_bn < exn.ex_offset\n"));
606 return (EIO);
607 }
608
609 KASSERT(ap->a_bn >= ex.ex_offset);
610 KASSERT(ex.ex_length > ap->a_bn - ex.ex_offset);
611
612 *ap->a_bnp = ex.ex_bn + (ap->a_bn - ex.ex_offset);
613 if (ap->a_runp != NULL)
614 *ap->a_runp = ex.ex_length - (ap->a_bn - ex.ex_offset) - 1;
615
616 return (0);
617 }
618
619 static int
620 efs_strategy(void *v)
621 {
622 struct vop_strategy_args /* {
623 const struct vnodeop_desc *a_desc;
624 struct vnode *a_vp;
625 struct buf *a_bp;
626 } */ *ap = v;
627 struct vnode *vp = ap->a_vp;
628 struct buf *bp = ap->a_bp;
629 int error;
630
631 if (vp == NULL) {
632 bp->b_error = EIO;
633 biodone(bp);
634 return (EIO);
635 }
636
637 if (bp->b_blkno == bp->b_lblkno) {
638 error = VOP_BMAP(vp, bp->b_lblkno, NULL, &bp->b_blkno, NULL);
639 if (error) {
640 bp->b_error = error;
641 biodone(bp);
642 return (error);
643 }
644 if ((long)bp->b_blkno == -1)
645 clrbuf(bp);
646 }
647
648 if ((long)bp->b_blkno == -1) {
649 biodone(bp);
650 return (0);
651 }
652
653 return (VOP_STRATEGY(VFSTOEFS(vp->v_mount)->em_devvp, bp));
654 }
655
656 static int
657 efs_print(void *v)
658 {
659 struct vop_print_args /* {
660 const struct vnodeop_desc *a_desc;
661 struct vnode *a_vp;
662 } */ *ap = v;
663 struct efs_inode *eip = EFS_VTOI(ap->a_vp);
664
665 printf( "efs_inode (ino %lu):\n"
666 " ei_mode: %07o\n"
667 " ei_nlink: %d\n"
668 " ei_uid: %d\n"
669 " ei_gid: %d\n"
670 " ei_size: %d\n"
671 " ei_atime: %d\n"
672 " ei_mtime: %d\n"
673 " ei_ctime: %d\n"
674 " ei_gen: %d\n"
675 " ei_numextents: %d\n"
676 " ei_version: %d\n",
677 (unsigned long)eip->ei_number,
678 (unsigned int)eip->ei_mode,
679 eip->ei_nlink,
680 eip->ei_uid,
681 eip->ei_gid,
682 eip->ei_size,
683 (int32_t)eip->ei_atime,
684 (int32_t)eip->ei_mtime,
685 (int32_t)eip->ei_ctime,
686 eip->ei_gen,
687 eip->ei_numextents,
688 eip->ei_version);
689
690 return (0);
691 }
692
693 static int
694 efs_pathconf(void *v)
695 {
696 struct vop_pathconf_args /* {
697 const struct vnodeop_desc *a_desc;
698 struct vnode *a_vp;
699 int a_name;
700 register_t *a_retval;
701 } */ *ap = v;
702
703 /* IRIX 4 values */
704 switch (ap->a_name) {
705 case _PC_LINK_MAX:
706 *ap->a_retval = 30000;
707 break;
708 case _PC_NAME_MAX:
709 *ap->a_retval = 255;
710 break;
711 case _PC_PATH_MAX:
712 *ap->a_retval = 1024;
713 break;
714 case _PC_NO_TRUNC:
715 *ap->a_retval = 1;
716 break;
717 case _PC_CHOWN_RESTRICTED:
718 *ap->a_retval = 1;
719 break;
720 case _PC_SYNC_IO:
721 *ap->a_retval = 1;
722 break;
723 case _PC_FILESIZEBITS:
724 *ap->a_retval = 32;
725 break;
726 default:
727 return (EINVAL);
728 }
729
730 return (0);
731 }
732
733 static int
734 efs_advlock(void *v)
735 {
736 struct vop_advlock_args /* {
737 const struct vnodeop_desc *a_desc;
738 struct vnode *a_vp;
739 void *a_id;
740 int a_op;
741 struct flock *a_fl;
742 int a_flags;
743 } */ *ap = v;
744 struct efs_inode *eip = EFS_VTOI(ap->a_vp);
745
746 return (lf_advlock(ap, &eip->ei_lockf, eip->ei_size));
747 }
748
749 /* Global vfs data structures for efs */
750 int (**efs_vnodeop_p)(void *);
751 const struct vnodeopv_entry_desc efs_vnodeop_entries[] = {
752 { &vop_default_desc, vn_default_error}, /* error handler */
753 { &vop_lookup_desc, efs_lookup }, /* lookup */
754 { &vop_create_desc, genfs_eopnotsupp}, /* create */
755 { &vop_mknod_desc, genfs_eopnotsupp}, /* mknod */
756 { &vop_open_desc, genfs_nullop }, /* open */
757 { &vop_close_desc, genfs_nullop }, /* close */
758 { &vop_access_desc, efs_access }, /* access */
759 { &vop_getattr_desc, efs_getattr }, /* getattr */
760 { &vop_setattr_desc, genfs_eopnotsupp}, /* setattr */
761 { &vop_read_desc, efs_read }, /* read */
762 { &vop_write_desc, genfs_eopnotsupp}, /* write */
763 { &vop_ioctl_desc, genfs_enoioctl }, /* ioctl */
764 { &vop_fcntl_desc, genfs_fcntl }, /* fcntl */
765 { &vop_poll_desc, genfs_poll }, /* poll */
766 { &vop_kqfilter_desc, genfs_kqfilter }, /* kqfilter */
767 { &vop_revoke_desc, genfs_revoke }, /* revoke */
768 { &vop_mmap_desc, genfs_mmap }, /* mmap */
769 { &vop_fsync_desc, genfs_eopnotsupp}, /* fsync */
770 { &vop_seek_desc, genfs_seek }, /* seek */
771 { &vop_remove_desc, genfs_eopnotsupp}, /* remove */
772 { &vop_link_desc, genfs_eopnotsupp}, /* link */
773 { &vop_rename_desc, genfs_eopnotsupp}, /* rename */
774 { &vop_mkdir_desc, genfs_eopnotsupp}, /* mkdir */
775 { &vop_rmdir_desc, genfs_eopnotsupp}, /* rmdir */
776 { &vop_symlink_desc, genfs_eopnotsupp}, /* symlink */
777 { &vop_readdir_desc, efs_readdir }, /* readdir */
778 { &vop_readlink_desc, efs_readlink }, /* readlink */
779 { &vop_abortop_desc, genfs_abortop }, /* abortop */
780 { &vop_inactive_desc, efs_inactive }, /* inactive */
781 { &vop_reclaim_desc, efs_reclaim }, /* reclaim */
782 { &vop_lock_desc, genfs_lock, }, /* lock */
783 { &vop_unlock_desc, genfs_unlock, }, /* unlock */
784 { &vop_islocked_desc, genfs_islocked, }, /* islocked */
785 { &vop_bmap_desc, efs_bmap }, /* bmap */
786 { &vop_print_desc, efs_print }, /* print */
787 { &vop_pathconf_desc, efs_pathconf }, /* pathconf */
788 { &vop_advlock_desc, efs_advlock }, /* advlock */
789 /* blkatoff */
790 /* valloc */
791 /* balloc */
792 /* vfree */
793 /* truncate */
794 { &vop_lease_desc, genfs_lease_check }, /* lease */
795 /* whiteout */
796 { &vop_getpages_desc, genfs_getpages }, /* getpages */
797 { &vop_putpages_desc, genfs_putpages }, /* putpages */
798 { &vop_bwrite_desc, vn_bwrite }, /* bwrite */
799 { &vop_strategy_desc, efs_strategy }, /* strategy */
800 { NULL, NULL }
801 };
802 const struct vnodeopv_desc efs_vnodeop_opv_desc = {
803 &efs_vnodeop_p,
804 efs_vnodeop_entries
805 };
806