2 * Copyright (c) 2010-2012 Semihalf
3 * Copyright (c) 2008, 2009 Reinoud Zandijk
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 * From: NetBSD: nilfs_vnops.c,v 1.2 2009/08/26 03:40:48 elad
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
32 #include <sys/param.h>
33 #include <sys/systm.h>
35 #include <sys/kernel.h>
37 #include <sys/lockf.h>
38 #include <sys/malloc.h>
39 #include <sys/mount.h>
40 #include <sys/mutex.h>
41 #include <sys/namei.h>
42 #include <sys/sysctl.h>
43 #include <sys/unistd.h>
44 #include <sys/vnode.h>
47 #include <sys/fcntl.h>
48 #include <sys/dirent.h>
49 #include <sys/rwlock.h>
54 #include <vm/vm_extern.h>
55 #include <vm/vm_object.h>
56 #include <vm/vnode_pager.h>
58 #include <machine/_inttypes.h>
60 #include <fs/nandfs/nandfs_mount.h>
61 #include <fs/nandfs/nandfs.h>
62 #include <fs/nandfs/nandfs_subr.h>
64 extern uma_zone_t nandfs_node_zone;
65 static void nandfs_read_filebuf(struct nandfs_node *, struct buf *);
66 static void nandfs_itimes_locked(struct vnode *);
67 static int nandfs_truncate(struct vnode *, uint64_t);
69 static vop_pathconf_t nandfs_pathconf;
71 #define UPDATE_CLOSE 0
75 nandfs_inactive(struct vop_inactive_args *ap)
77 struct vnode *vp = ap->a_vp;
78 struct nandfs_node *node = VTON(vp);
81 DPRINTF(VNCALL, ("%s: vp:%p node:%p\n", __func__, vp, node));
84 DPRINTF(NODE, ("%s: inactive NULL node\n", __func__));
88 if (node->nn_inode.i_mode != 0 && !(node->nn_inode.i_links_count)) {
89 nandfs_truncate(vp, 0);
90 error = nandfs_node_destroy(node);
92 nandfs_error("%s: destroy node: %p\n", __func__, node);
101 nandfs_reclaim(struct vop_reclaim_args *ap)
103 struct vnode *vp = ap->a_vp;
104 struct nandfs_node *nandfs_node = VTON(vp);
105 struct nandfs_device *fsdev = nandfs_node->nn_nandfsdev;
106 uint64_t ino = nandfs_node->nn_ino;
108 DPRINTF(VNCALL, ("%s: vp:%p node:%p\n", __func__, vp, nandfs_node));
110 /* Invalidate all entries to a particular vnode. */
113 /* Destroy the vm object and flush associated pages. */
114 vnode_destroy_vobject(vp);
116 /* Remove from vfs hash if not system vnode */
117 if (!NANDFS_SYS_NODE(nandfs_node->nn_ino))
120 /* Dispose all node knowledge */
121 nandfs_dispose_node(&nandfs_node);
123 if (!NANDFS_SYS_NODE(ino))
124 NANDFS_WRITEUNLOCK(fsdev);
130 nandfs_read(struct vop_read_args *ap)
132 register struct vnode *vp = ap->a_vp;
133 register struct nandfs_node *node = VTON(vp);
134 struct nandfs_device *nandfsdev = node->nn_nandfsdev;
135 struct uio *uio = ap->a_uio;
145 if (uio->uio_resid == 0)
148 size = node->nn_inode.i_size;
149 if (uio->uio_offset >= size)
152 blocksize = nandfsdev->nd_blocksize;
153 bytesinfile = size - uio->uio_offset;
155 resid = omin(uio->uio_resid, bytesinfile);
158 lbn = uio->uio_offset / blocksize;
159 off = uio->uio_offset & (blocksize - 1);
161 toread = omin(resid, blocksize - off);
163 DPRINTF(READ, ("nandfs_read bn: 0x%jx toread: 0x%zx (0x%x)\n",
164 (uintmax_t)lbn, toread, blocksize));
166 error = nandfs_bread(node, lbn, NOCRED, 0, &bp);
172 error = uiomove(bp->b_data + off, toread, uio);
186 nandfs_write(struct vop_write_args *ap)
188 struct nandfs_device *fsdev;
189 struct nandfs_node *node;
193 uint64_t file_size, vblk;
195 ssize_t towrite, off;
198 int error, ioflag, modified;
202 ioflag = ap->a_ioflag;
204 fsdev = node->nn_nandfsdev;
206 if (nandfs_fs_full(fsdev))
209 DPRINTF(WRITE, ("nandfs_write called %#zx at %#jx\n",
210 uio->uio_resid, (uintmax_t)uio->uio_offset));
212 if (uio->uio_offset < 0)
214 if (uio->uio_resid == 0)
217 blocksize = fsdev->nd_blocksize;
218 file_size = node->nn_inode.i_size;
220 switch (vp->v_type) {
222 if (ioflag & IO_APPEND)
223 uio->uio_offset = file_size;
230 panic("%s: bad file type vp: %p", __func__, vp);
233 /* If explicitly asked to append, uio_offset can be wrong? */
234 if (ioflag & IO_APPEND)
235 uio->uio_offset = file_size;
237 resid = uio->uio_resid;
238 modified = error = 0;
240 while (uio->uio_resid) {
241 lbn = uio->uio_offset / blocksize;
242 off = uio->uio_offset & (blocksize - 1);
244 towrite = omin(uio->uio_resid, blocksize - off);
246 DPRINTF(WRITE, ("%s: lbn: 0x%jd toread: 0x%zx (0x%x)\n",
247 __func__, (uintmax_t)lbn, towrite, blocksize));
249 error = nandfs_bmap_lookup(node, lbn, &vblk);
253 DPRINTF(WRITE, ("%s: lbn: 0x%jd toread: 0x%zx (0x%x) "
254 "vblk=%jx\n", __func__, (uintmax_t)lbn, towrite, blocksize,
258 error = nandfs_bread(node, lbn, NOCRED, 0, &bp);
260 error = nandfs_bcreate(node, lbn, NOCRED, 0, &bp);
262 DPRINTF(WRITE, ("%s: vp %p bread bp %p lbn %#jx\n", __func__,
263 vp, bp, (uintmax_t)lbn));
270 error = uiomove((char *)bp->b_data + off, (int)towrite, uio);
274 error = nandfs_dirty_buf(bp, 0);
281 /* XXX proper handling when only part of file was properly written */
283 if (resid > uio->uio_resid && ap->a_cred &&
284 ap->a_cred->cr_uid != 0)
285 node->nn_inode.i_mode &= ~(ISUID | ISGID);
287 if (file_size < uio->uio_offset + uio->uio_resid) {
288 node->nn_inode.i_size = uio->uio_offset +
290 node->nn_flags |= IN_CHANGE | IN_UPDATE;
291 vnode_pager_setsize(vp, uio->uio_offset +
297 DPRINTF(WRITE, ("%s: return:%d\n", __func__, error));
303 nandfs_lookup(struct vop_cachedlookup_args *ap)
305 struct vnode *dvp, **vpp;
306 struct componentname *cnp;
309 struct nandfs_node *dir_node, *node;
310 struct nandfsmount *nmp;
313 int namelen, nameiop, islastcn, mounted_ro;
316 DPRINTF(VNCALL, ("%s\n", __func__));
326 dir_node = VTON(dvp);
327 nmp = dir_node->nn_nmp;
329 /* Simplify/clarification flags */
330 nameiop = cnp->cn_nameiop;
331 islastcn = cnp->cn_flags & ISLASTCN;
332 mounted_ro = dvp->v_mount->mnt_flag & MNT_RDONLY;
335 * If requesting a modify on the last path element on a read-only
336 * filingsystem, reject lookup;
338 if (islastcn && mounted_ro && (nameiop == DELETE || nameiop == RENAME))
341 if (dir_node->nn_inode.i_links_count == 0)
345 * Obviously, the file is not (anymore) in the namecache, we have to
346 * search for it. There are three basic cases: '.', '..' and others.
348 * Following the guidelines of VOP_LOOKUP manpage and tmpfs.
351 if ((cnp->cn_namelen == 1) && (cnp->cn_nameptr[0] == '.')) {
352 DPRINTF(LOOKUP, ("\tlookup '.'\n"));
353 /* Special case 1 '.' */
357 } else if (cnp->cn_flags & ISDOTDOT) {
358 /* Special case 2 '..' */
359 DPRINTF(LOOKUP, ("\tlookup '..'\n"));
364 error = nandfs_lookup_name_in_dir(dvp, name, namelen, &ino,
371 /* First unlock parent */
375 DPRINTF(LOOKUP, ("\tfound '..'\n"));
376 /* Try to create/reuse the node */
377 error = nandfs_get_node(nmp, ino, &node);
381 ("\tnode retrieved/created OK\n"));
386 /* Try to relock parent */
387 vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY);
389 DPRINTF(LOOKUP, ("\tlookup file\n"));
390 /* All other files */
391 /* Look up filename in the directory returning its inode */
392 name = cnp->cn_nameptr;
393 namelen = cnp->cn_namelen;
394 error = nandfs_lookup_name_in_dir(dvp, name, namelen,
399 DPRINTF(LOOKUP, ("\tNOT found\n"));
401 * UGH, didn't find name. If we're creating or
402 * renaming on the last name this is OK and we ought
403 * to return EJUSTRETURN if its allowed to be created.
406 if ((nameiop == CREATE || nameiop == RENAME) &&
408 error = VOP_ACCESS(dvp, VWRITE, cred, td);
410 /* keep the component name */
411 cnp->cn_flags |= SAVENAME;
417 if (ino == NANDFS_WHT_INO)
418 cnp->cn_flags |= ISWHITEOUT;
420 if ((cnp->cn_flags & ISWHITEOUT) &&
424 if ((nameiop == DELETE) && islastcn) {
425 if ((cnp->cn_flags & ISWHITEOUT) &&
426 (cnp->cn_flags & DOWHITEOUT)) {
427 cnp->cn_flags |= SAVENAME;
428 dir_node->nn_diroff = off;
429 return (EJUSTRETURN);
432 error = VOP_ACCESS(dvp, VWRITE, cred,
437 /* Try to create/reuse the node */
438 error = nandfs_get_node(nmp, ino, &node);
441 node->nn_diroff = off;
444 if ((dir_node->nn_inode.i_mode & ISVTX) &&
446 cred->cr_uid != dir_node->nn_inode.i_uid &&
447 node->nn_inode.i_uid != cred->cr_uid) {
452 } else if ((nameiop == RENAME) && islastcn) {
453 error = VOP_ACCESS(dvp, VWRITE, cred,
458 /* Try to create/reuse the node */
459 error = nandfs_get_node(nmp, ino, &node);
462 node->nn_diroff = off;
465 /* Try to create/reuse the node */
466 error = nandfs_get_node(nmp, ino, &node);
469 node->nn_diroff = off;
477 * Store result in the cache if requested. If we are creating a file,
478 * the file might not be found and thus putting it into the namecache
479 * might be seen as negative caching.
481 if ((cnp->cn_flags & MAKEENTRY) && nameiop != CREATE)
482 cache_enter(dvp, *vpp, cnp);
489 nandfs_getattr(struct vop_getattr_args *ap)
491 struct vnode *vp = ap->a_vp;
492 struct vattr *vap = ap->a_vap;
493 struct nandfs_node *node = VTON(vp);
494 struct nandfs_inode *inode = &node->nn_inode;
496 DPRINTF(VNCALL, ("%s: vp: %p\n", __func__, vp));
501 vap->va_atime.tv_sec = inode->i_mtime;
502 vap->va_atime.tv_nsec = inode->i_mtime_nsec;
503 vap->va_mtime.tv_sec = inode->i_mtime;
504 vap->va_mtime.tv_nsec = inode->i_mtime_nsec;
505 vap->va_ctime.tv_sec = inode->i_ctime;
506 vap->va_ctime.tv_nsec = inode->i_ctime_nsec;
507 vap->va_type = IFTOVT(inode->i_mode);
508 vap->va_mode = inode->i_mode & ~S_IFMT;
509 vap->va_nlink = inode->i_links_count;
510 vap->va_uid = inode->i_uid;
511 vap->va_gid = inode->i_gid;
512 vap->va_rdev = inode->i_special;
513 vap->va_fsid = vp->v_mount->mnt_stat.f_fsid.val[0];
514 vap->va_fileid = node->nn_ino;
515 vap->va_size = inode->i_size;
516 vap->va_blocksize = node->nn_nandfsdev->nd_blocksize;
518 vap->va_flags = inode->i_flags;
519 vap->va_bytes = inode->i_blocks * vap->va_blocksize;
527 nandfs_vtruncbuf(struct vnode *vp, uint64_t nblks)
529 struct nandfs_device *nffsdev;
531 struct buf *bp, *nbp;
534 nffsdev = VTON(vp)->nn_nandfsdev;
536 ASSERT_VOP_LOCKED(vp, "nandfs_truncate");
540 TAILQ_FOREACH_SAFE(bp, &bo->bo_clean.bv_hd, b_bobufs, nbp) {
541 if (bp->b_lblkno < nblks)
543 if (BUF_LOCK(bp, LK_EXCLUSIVE | LK_NOWAIT, NULL))
547 bp->b_flags |= (B_INVAL | B_RELBUF);
548 bp->b_flags &= ~(B_ASYNC | B_MANAGED);
554 TAILQ_FOREACH_SAFE(bp, &bo->bo_dirty.bv_hd, b_bobufs, nbp) {
555 if (bp->b_lblkno < nblks)
558 LK_EXCLUSIVE | LK_SLEEPFAIL | LK_INTERLOCK,
559 BO_LOCKPTR(bo)) == ENOLCK)
561 bp->b_flags |= (B_INVAL | B_RELBUF);
562 bp->b_flags &= ~(B_ASYNC | B_MANAGED);
564 nandfs_dirty_bufs_decrement(nffsdev);
574 nandfs_truncate(struct vnode *vp, uint64_t newsize)
576 struct nandfs_device *nffsdev;
577 struct nandfs_node *node;
578 struct nandfs_inode *inode;
579 struct buf *bp = NULL;
580 uint64_t oblks, nblks, vblk, size, rest;
584 nffsdev = node->nn_nandfsdev;
585 inode = &node->nn_inode;
587 /* Calculate end of file */
588 size = inode->i_size;
590 if (newsize == size) {
591 node->nn_flags |= IN_CHANGE | IN_UPDATE;
596 if (newsize > size) {
597 inode->i_size = newsize;
598 vnode_pager_setsize(vp, newsize);
599 node->nn_flags |= IN_CHANGE | IN_UPDATE;
604 nblks = howmany(newsize, nffsdev->nd_blocksize);
605 oblks = howmany(size, nffsdev->nd_blocksize);
606 rest = newsize % nffsdev->nd_blocksize;
609 error = nandfs_bmap_lookup(node, nblks - 1, &vblk);
614 error = nandfs_bread(node, nblks - 1, NOCRED, 0, &bp);
616 error = nandfs_bcreate(node, nblks - 1, NOCRED, 0, &bp);
624 bzero((char *)bp->b_data + rest,
625 (u_int)(nffsdev->nd_blocksize - rest));
626 error = nandfs_dirty_buf(bp, 0);
631 DPRINTF(VNCALL, ("%s: vp %p oblks %jx nblks %jx\n", __func__, vp, oblks,
634 error = nandfs_bmap_truncate_mapping(node, oblks - 1, nblks - 1);
637 nandfs_undirty_buf(bp);
641 error = nandfs_vtruncbuf(vp, nblks);
644 nandfs_undirty_buf(bp);
648 inode->i_size = newsize;
649 vnode_pager_setsize(vp, newsize);
650 node->nn_flags |= IN_CHANGE | IN_UPDATE;
657 nandfs_itimes_locked(struct vnode *vp)
659 struct nandfs_node *node;
660 struct nandfs_inode *inode;
663 ASSERT_VI_LOCKED(vp, __func__);
666 inode = &node->nn_inode;
668 if ((node->nn_flags & (IN_ACCESS | IN_CHANGE | IN_UPDATE)) == 0)
671 if (((vp->v_mount->mnt_kern_flag &
672 (MNTK_SUSPENDED | MNTK_SUSPEND)) == 0) ||
673 (node->nn_flags & (IN_CHANGE | IN_UPDATE)))
674 node->nn_flags |= IN_MODIFIED;
677 if (node->nn_flags & IN_UPDATE) {
678 inode->i_mtime = ts.tv_sec;
679 inode->i_mtime_nsec = ts.tv_nsec;
681 if (node->nn_flags & IN_CHANGE) {
682 inode->i_ctime = ts.tv_sec;
683 inode->i_ctime_nsec = ts.tv_nsec;
686 node->nn_flags &= ~(IN_ACCESS | IN_CHANGE | IN_UPDATE);
690 nandfs_itimes(struct vnode *vp)
694 nandfs_itimes_locked(vp);
699 nandfs_chmod(struct vnode *vp, int mode, struct ucred *cred, struct thread *td)
701 struct nandfs_node *node = VTON(vp);
702 struct nandfs_inode *inode = &node->nn_inode;
706 DPRINTF(VNCALL, ("%s: vp %p, mode %x, cred %p, td %p\n", __func__, vp,
709 * To modify the permissions on a file, must possess VADMIN
712 if ((error = VOP_ACCESS(vp, VADMIN, cred, td)))
716 * Privileged processes may set the sticky bit on non-directories,
717 * as well as set the setgid bit on a file with a group that the
718 * process is not a member of. Both of these are allowed in
721 if (vp->v_type != VDIR && (mode & S_ISTXT)) {
722 if (priv_check_cred(cred, PRIV_VFS_STICKYFILE, 0))
725 if (!groupmember(inode->i_gid, cred) && (mode & ISGID)) {
726 error = priv_check_cred(cred, PRIV_VFS_SETGID, 0);
732 * Deny setting setuid if we are not the file owner.
734 if ((mode & ISUID) && inode->i_uid != cred->cr_uid) {
735 error = priv_check_cred(cred, PRIV_VFS_ADMIN, 0);
740 nmode = inode->i_mode;
742 nmode |= (mode & ALLPERMS);
743 inode->i_mode = nmode;
744 node->nn_flags |= IN_CHANGE;
746 DPRINTF(VNCALL, ("%s: to mode %x\n", __func__, nmode));
752 nandfs_chown(struct vnode *vp, uid_t uid, gid_t gid, struct ucred *cred,
755 struct nandfs_node *node = VTON(vp);
756 struct nandfs_inode *inode = &node->nn_inode;
761 if (uid == (uid_t)VNOVAL)
763 if (gid == (gid_t)VNOVAL)
766 * To modify the ownership of a file, must possess VADMIN for that
769 if ((error = VOP_ACCESSX(vp, VWRITE_OWNER, cred, td)))
772 * To change the owner of a file, or change the group of a file to a
773 * group of which we are not a member, the caller must have
776 if (((uid != inode->i_uid && uid != cred->cr_uid) ||
777 (gid != inode->i_gid && !groupmember(gid, cred))) &&
778 (error = priv_check_cred(cred, PRIV_VFS_CHOWN, 0)))
786 node->nn_flags |= IN_CHANGE;
787 if ((inode->i_mode & (ISUID | ISGID)) &&
788 (ouid != uid || ogid != gid)) {
789 if (priv_check_cred(cred, PRIV_VFS_RETAINSUGID, 0))
790 inode->i_mode &= ~(ISUID | ISGID);
792 DPRINTF(VNCALL, ("%s: vp %p, cred %p, td %p - ret OK\n", __func__, vp,
798 nandfs_setattr(struct vop_setattr_args *ap)
800 struct vnode *vp = ap->a_vp;
801 struct nandfs_node *node = VTON(vp);
802 struct nandfs_inode *inode = &node->nn_inode;
803 struct vattr *vap = ap->a_vap;
804 struct ucred *cred = ap->a_cred;
805 struct thread *td = curthread;
809 if ((vap->va_type != VNON) || (vap->va_nlink != VNOVAL) ||
810 (vap->va_fsid != VNOVAL) || (vap->va_fileid != VNOVAL) ||
811 (vap->va_blocksize != VNOVAL) || (vap->va_rdev != VNOVAL) ||
812 (vap->va_bytes != VNOVAL) || (vap->va_gen != VNOVAL)) {
813 DPRINTF(VNCALL, ("%s: unsettable attribute\n", __func__));
817 if (vap->va_flags != VNOVAL) {
818 DPRINTF(VNCALL, ("%s: vp:%p td:%p flags:%lx\n", __func__, vp,
821 if (vp->v_mount->mnt_flag & MNT_RDONLY)
824 * Callers may only modify the file flags on objects they
825 * have VADMIN rights for.
827 if ((error = VOP_ACCESS(vp, VADMIN, cred, td)))
830 * Unprivileged processes are not permitted to unset system
831 * flags, or modify flags if any system flags are set.
832 * Privileged non-jail processes may not modify system flags
833 * if securelevel > 0 and any existing system flags are set.
834 * Privileged jail processes behave like privileged non-jail
835 * processes if the security.jail.chflags_allowed sysctl is
836 * is non-zero; otherwise, they behave like unprivileged
840 flags = inode->i_flags;
841 if (!priv_check_cred(cred, PRIV_VFS_SYSFLAGS, 0)) {
842 if (flags & (SF_NOUNLINK | SF_IMMUTABLE | SF_APPEND)) {
843 error = securelevel_gt(cred, 0);
847 /* Snapshot flag cannot be set or cleared */
848 if (((vap->va_flags & SF_SNAPSHOT) != 0 &&
849 (flags & SF_SNAPSHOT) == 0) ||
850 ((vap->va_flags & SF_SNAPSHOT) == 0 &&
851 (flags & SF_SNAPSHOT) != 0))
854 inode->i_flags = vap->va_flags;
856 if (flags & (SF_NOUNLINK | SF_IMMUTABLE | SF_APPEND) ||
857 (vap->va_flags & UF_SETTABLE) != vap->va_flags)
860 flags &= SF_SETTABLE;
861 flags |= (vap->va_flags & UF_SETTABLE);
862 inode->i_flags = flags;
864 node->nn_flags |= IN_CHANGE;
865 if (vap->va_flags & (IMMUTABLE | APPEND))
868 if (inode->i_flags & (IMMUTABLE | APPEND))
871 if (vap->va_size != (u_quad_t)VNOVAL) {
872 DPRINTF(VNCALL, ("%s: vp:%p td:%p size:%jx\n", __func__, vp, td,
873 (uintmax_t)vap->va_size));
875 switch (vp->v_type) {
880 if (vp->v_mount->mnt_flag & MNT_RDONLY)
882 if ((inode->i_flags & SF_SNAPSHOT) != 0)
889 if (vap->va_size > node->nn_nandfsdev->nd_maxfilesize)
892 KASSERT((vp->v_type == VREG), ("Set size %d", vp->v_type));
893 nandfs_truncate(vp, vap->va_size);
894 node->nn_flags |= IN_CHANGE;
899 if (vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL) {
900 if (vp->v_mount->mnt_flag & MNT_RDONLY)
902 DPRINTF(VNCALL, ("%s: vp:%p td:%p uid/gid %x/%x\n", __func__,
903 vp, td, vap->va_uid, vap->va_gid));
904 error = nandfs_chown(vp, vap->va_uid, vap->va_gid, cred, td);
909 if (vap->va_mode != (mode_t)VNOVAL) {
910 if (vp->v_mount->mnt_flag & MNT_RDONLY)
912 DPRINTF(VNCALL, ("%s: vp:%p td:%p mode %x\n", __func__, vp, td,
915 error = nandfs_chmod(vp, (int)vap->va_mode, cred, td);
919 if (vap->va_atime.tv_sec != VNOVAL ||
920 vap->va_mtime.tv_sec != VNOVAL ||
921 vap->va_birthtime.tv_sec != VNOVAL) {
922 DPRINTF(VNCALL, ("%s: vp:%p td:%p time a/m/b %jx/%jx/%jx\n",
923 __func__, vp, td, (uintmax_t)vap->va_atime.tv_sec,
924 (uintmax_t)vap->va_mtime.tv_sec,
925 (uintmax_t)vap->va_birthtime.tv_sec));
927 if (vap->va_atime.tv_sec != VNOVAL)
928 node->nn_flags |= IN_ACCESS;
929 if (vap->va_mtime.tv_sec != VNOVAL)
930 node->nn_flags |= IN_CHANGE | IN_UPDATE;
931 if (vap->va_birthtime.tv_sec != VNOVAL)
932 node->nn_flags |= IN_MODIFIED;
941 nandfs_open(struct vop_open_args *ap)
943 struct nandfs_node *node = VTON(ap->a_vp);
946 DPRINTF(VNCALL, ("nandfs_open called ap->a_mode %x\n", ap->a_mode));
948 if (ap->a_vp->v_type == VCHR || ap->a_vp->v_type == VBLK)
951 if ((node->nn_inode.i_flags & APPEND) &&
952 (ap->a_mode & (FWRITE | O_APPEND)) == FWRITE)
955 filesize = node->nn_inode.i_size;
956 vnode_create_vobject(ap->a_vp, filesize, ap->a_td);
962 nandfs_close(struct vop_close_args *ap)
964 struct vnode *vp = ap->a_vp;
965 struct nandfs_node *node = VTON(vp);
967 DPRINTF(VNCALL, ("%s: vp %p node %p\n", __func__, vp, node));
969 mtx_lock(&vp->v_interlock);
970 if (vp->v_usecount > 1)
971 nandfs_itimes_locked(vp);
972 mtx_unlock(&vp->v_interlock);
978 nandfs_check_possible(struct vnode *vp, struct vattr *vap, mode_t mode)
981 /* Check if we are allowed to write */
982 switch (vap->va_type) {
987 * Normal nodes: check if we're on a read-only mounted
988 * filingsystem and bomb out if we're trying to write.
990 if ((mode & VMODIFY_PERMS) && (vp->v_mount->mnt_flag & MNT_RDONLY))
998 * Special nodes: even on read-only mounted filingsystems
999 * these are allowed to be written to if permissions allow.
1003 /* No idea what this is */
1007 /* No one may write immutable files */
1008 if ((mode & VWRITE) && (VTON(vp)->nn_inode.i_flags & IMMUTABLE))
1015 nandfs_check_permitted(struct vnode *vp, struct vattr *vap, mode_t mode,
1019 return (vaccess(vp->v_type, vap->va_mode, vap->va_uid, vap->va_gid, mode,
1024 nandfs_advlock(struct vop_advlock_args *ap)
1026 struct nandfs_node *nvp;
1029 nvp = VTON(ap->a_vp);
1030 size = nvp->nn_inode.i_size;
1031 return (lf_advlock(ap, &(nvp->nn_lockf), size));
1035 nandfs_access(struct vop_access_args *ap)
1037 struct vnode *vp = ap->a_vp;
1038 accmode_t accmode = ap->a_accmode;
1039 struct ucred *cred = ap->a_cred;
1043 DPRINTF(VNCALL, ("%s: vp:%p mode: %x\n", __func__, vp, accmode));
1045 error = VOP_GETATTR(vp, &vap, NULL);
1049 error = nandfs_check_possible(vp, &vap, accmode);
1053 error = nandfs_check_permitted(vp, &vap, accmode, cred);
1059 nandfs_print(struct vop_print_args *ap)
1061 struct vnode *vp = ap->a_vp;
1062 struct nandfs_node *nvp = VTON(vp);
1064 printf("\tvp=%p, nandfs_node=%p\n", vp, nvp);
1065 printf("nandfs inode %#jx\n", (uintmax_t)nvp->nn_ino);
1066 printf("flags = 0x%b\n", (u_int)nvp->nn_flags, PRINT_NODE_FLAGS);
1072 nandfs_read_filebuf(struct nandfs_node *node, struct buf *bp)
1074 struct nandfs_device *nandfsdev = node->nn_nandfsdev;
1076 nandfs_daddr_t vblk, pblk;
1080 int blk2dev = nandfsdev->nd_blocksize / DEV_BSIZE;
1083 * Translate all the block sectors into a series of buffers to read
1084 * asynchronously from the nandfs device. Note that this lookup may
1085 * induce readin's too.
1088 blocksize = nandfsdev->nd_blocksize;
1089 if (bp->b_bcount / blocksize != 1)
1090 panic("invalid b_count in bp %p\n", bp);
1094 DPRINTF(READ, ("\tread in from inode %#jx blkno %#jx"
1095 " count %#lx\n", (uintmax_t)node->nn_ino, from,
1098 /* Get virtual block numbers for the vnode's buffer span */
1099 error = nandfs_bmap_lookup(node, from, &vblk);
1101 bp->b_error = EINVAL;
1102 bp->b_ioflags |= BIO_ERROR;
1107 /* Translate virtual block numbers to physical block numbers */
1108 error = nandfs_vtop(node, vblk, &pblk);
1110 bp->b_error = EINVAL;
1111 bp->b_ioflags |= BIO_ERROR;
1116 /* Issue translated blocks */
1117 bp->b_resid = bp->b_bcount;
1119 /* Note virtual block 0 marks not mapped */
1127 nbp->b_blkno = pblk * blk2dev;
1128 bp->b_iooffset = dbtob(nbp->b_blkno);
1129 MPASS(bp->b_iooffset >= 0);
1130 BO_STRATEGY(&nandfsdev->nd_devvp->v_bufobj, nbp);
1131 nandfs_vblk_set(bp, vblk);
1132 DPRINTF(READ, ("read_filebuf : ino %#jx blk %#jx -> "
1133 "%#jx -> %#jx [bp %p]\n", (uintmax_t)node->nn_ino,
1134 (uintmax_t)(from), (uintmax_t)vblk,
1135 (uintmax_t)pblk, nbp));
1139 nandfs_write_filebuf(struct nandfs_node *node, struct buf *bp)
1141 struct nandfs_device *nandfsdev = node->nn_nandfsdev;
1143 bp->b_iooffset = dbtob(bp->b_blkno);
1144 MPASS(bp->b_iooffset >= 0);
1145 BO_STRATEGY(&nandfsdev->nd_devvp->v_bufobj, bp);
1149 nandfs_strategy(struct vop_strategy_args *ap)
1151 struct vnode *vp = ap->a_vp;
1152 struct buf *bp = ap->a_bp;
1153 struct nandfs_node *node = VTON(vp);
1156 /* check if we ought to be here */
1157 KASSERT((vp->v_type != VBLK && vp->v_type != VCHR),
1158 ("nandfs_strategy on type %d", vp->v_type));
1160 /* Translate if needed and pass on */
1161 if (bp->b_iocmd == BIO_READ) {
1162 nandfs_read_filebuf(node, bp);
1166 /* Send to segment collector */
1167 nandfs_write_filebuf(node, bp);
1172 nandfs_readdir(struct vop_readdir_args *ap)
1174 struct uio *uio = ap->a_uio;
1175 struct vnode *vp = ap->a_vp;
1176 struct nandfs_node *node = VTON(vp);
1177 struct nandfs_dir_entry *ndirent;
1178 struct dirent dirent;
1180 uint64_t file_size, diroffset, transoffset, blkoff;
1182 uint32_t blocksize = node->nn_nandfsdev->nd_blocksize;
1183 uint8_t *pos, name_len;
1186 DPRINTF(READDIR, ("nandfs_readdir called\n"));
1188 if (vp->v_type != VDIR)
1191 file_size = node->nn_inode.i_size;
1192 DPRINTF(READDIR, ("nandfs_readdir filesize %jd resid %zd\n",
1193 (uintmax_t)file_size, uio->uio_resid ));
1195 /* We are called just as long as we keep on pushing data in */
1197 if ((uio->uio_offset < file_size) &&
1198 (uio->uio_resid >= sizeof(struct dirent))) {
1199 diroffset = uio->uio_offset;
1200 transoffset = diroffset;
1202 blocknr = diroffset / blocksize;
1203 blkoff = diroffset % blocksize;
1204 error = nandfs_bread(node, blocknr, NOCRED, 0, &bp);
1209 while (diroffset < file_size) {
1210 DPRINTF(READDIR, ("readdir : offset = %"PRIu64"\n",
1212 if (blkoff >= blocksize) {
1213 blkoff = 0; blocknr++;
1215 error = nandfs_bread(node, blocknr, NOCRED, 0,
1223 /* Read in one dirent */
1224 pos = (uint8_t *)bp->b_data + blkoff;
1225 ndirent = (struct nandfs_dir_entry *)pos;
1227 name_len = ndirent->name_len;
1228 memset(&dirent, 0, sizeof(struct dirent));
1229 dirent.d_fileno = ndirent->inode;
1230 if (dirent.d_fileno) {
1231 dirent.d_type = ndirent->file_type;
1232 dirent.d_namlen = name_len;
1233 strncpy(dirent.d_name, ndirent->name, name_len);
1234 dirent.d_reclen = GENERIC_DIRSIZ(&dirent);
1235 DPRINTF(READDIR, ("copying `%*.*s`\n", name_len,
1236 name_len, dirent.d_name));
1240 * If there isn't enough space in the uio to return a
1241 * whole dirent, break off read
1243 if (uio->uio_resid < GENERIC_DIRSIZ(&dirent))
1247 if (dirent.d_fileno)
1248 uiomove(&dirent, GENERIC_DIRSIZ(&dirent), uio);
1251 diroffset += ndirent->rec_len;
1252 blkoff += ndirent->rec_len;
1254 /* Remember the last entry we transfered */
1255 transoffset = diroffset;
1259 /* Pass on last transfered offset */
1260 uio->uio_offset = transoffset;
1264 *ap->a_eofflag = (uio->uio_offset >= file_size);
1270 nandfs_dirempty(struct vnode *dvp, uint64_t parentino, struct ucred *cred)
1272 struct nandfs_node *dnode = VTON(dvp);
1273 struct nandfs_dir_entry *dirent;
1274 uint64_t file_size = dnode->nn_inode.i_size;
1275 uint64_t blockcount = dnode->nn_inode.i_blocks;
1277 uint32_t blocksize = dnode->nn_nandfsdev->nd_blocksize;
1284 DPRINTF(LOOKUP, ("%s: dvp %p parentino %#jx cred %p\n", __func__, dvp,
1285 (uintmax_t)parentino, cred));
1287 KASSERT((file_size != 0), ("nandfs_dirempty for NULL dir %p", dvp));
1290 while (blocknr < blockcount) {
1291 error = nandfs_bread(dnode, blocknr, NOCRED, 0, &bp);
1297 pos = (uint8_t *)bp->b_data;
1300 if (blocknr == (blockcount - 1))
1301 limit = file_size % blocksize;
1305 while (off < limit) {
1306 dirent = (struct nandfs_dir_entry *)(pos + off);
1307 off += dirent->rec_len;
1309 if (dirent->inode == 0)
1312 switch (dirent->name_len) {
1316 if (dirent->name[0] != '.')
1319 KASSERT(dirent->inode == dnode->nn_ino,
1320 (".'s inode does not match dir"));
1323 if (dirent->name[0] != '.' &&
1324 dirent->name[1] != '.')
1327 KASSERT(dirent->inode == parentino,
1328 ("..'s inode does not match parent"));
1346 nandfs_link(struct vop_link_args *ap)
1348 struct vnode *tdvp = ap->a_tdvp;
1349 struct vnode *vp = ap->a_vp;
1350 struct componentname *cnp = ap->a_cnp;
1351 struct nandfs_node *node = VTON(vp);
1352 struct nandfs_inode *inode = &node->nn_inode;
1355 if (inode->i_links_count >= LINK_MAX)
1358 if (inode->i_flags & (IMMUTABLE | APPEND))
1361 /* Update link count */
1362 inode->i_links_count++;
1365 error = nandfs_add_dirent(tdvp, node->nn_ino, cnp->cn_nameptr,
1366 cnp->cn_namelen, IFTODT(inode->i_mode));
1368 inode->i_links_count--;
1371 node->nn_flags |= IN_CHANGE;
1373 DPRINTF(VNCALL, ("%s: tdvp %p vp %p cnp %p\n",
1374 __func__, tdvp, vp, cnp));
1380 nandfs_create(struct vop_create_args *ap)
1382 struct vnode *dvp = ap->a_dvp;
1383 struct vnode **vpp = ap->a_vpp;
1384 struct componentname *cnp = ap->a_cnp;
1385 uint16_t mode = MAKEIMODE(ap->a_vap->va_type, ap->a_vap->va_mode);
1386 struct nandfs_node *dir_node = VTON(dvp);
1387 struct nandfsmount *nmp = dir_node->nn_nmp;
1388 struct nandfs_node *node;
1391 DPRINTF(VNCALL, ("%s: dvp %p\n", __func__, dvp));
1393 if (nandfs_fs_full(dir_node->nn_nandfsdev))
1396 /* Create new vnode/inode */
1397 error = nandfs_node_create(nmp, &node, mode);
1400 node->nn_inode.i_gid = dir_node->nn_inode.i_gid;
1401 node->nn_inode.i_uid = cnp->cn_cred->cr_uid;
1403 /* Add new dir entry */
1404 error = nandfs_add_dirent(dvp, node->nn_ino, cnp->cn_nameptr,
1405 cnp->cn_namelen, IFTODT(mode));
1407 if (nandfs_node_destroy(node)) {
1408 nandfs_error("%s: error destroying node %p\n",
1415 DPRINTF(VNCALL, ("created file vp %p nandnode %p ino %jx\n", *vpp, node,
1416 (uintmax_t)node->nn_ino));
1421 nandfs_remove(struct vop_remove_args *ap)
1423 struct vnode *vp = ap->a_vp;
1424 struct vnode *dvp = ap->a_dvp;
1425 struct nandfs_node *node = VTON(vp);
1426 struct nandfs_node *dnode = VTON(dvp);
1427 struct componentname *cnp = ap->a_cnp;
1429 DPRINTF(VNCALL, ("%s: dvp %p vp %p nandnode %p ino %#jx link %d\n",
1430 __func__, dvp, vp, node, (uintmax_t)node->nn_ino,
1431 node->nn_inode.i_links_count));
1433 if (vp->v_type == VDIR)
1436 /* Files marked as immutable or append-only cannot be deleted. */
1437 if ((node->nn_inode.i_flags & (IMMUTABLE | APPEND | NOUNLINK)) ||
1438 (dnode->nn_inode.i_flags & APPEND))
1441 nandfs_remove_dirent(dvp, node, cnp);
1442 node->nn_inode.i_links_count--;
1443 node->nn_flags |= IN_CHANGE;
1449 * Check if source directory is in the path of the target directory.
1450 * Target is supplied locked, source is unlocked.
1451 * The target is always vput before returning.
1454 nandfs_checkpath(struct nandfs_node *src, struct nandfs_node *dest,
1459 struct nandfs_dir_entry dirent;
1462 if (src->nn_ino == dest->nn_ino) {
1466 rootino = NANDFS_ROOT_INO;
1468 if (dest->nn_ino == rootino)
1472 if (vp->v_type != VDIR) {
1477 error = vn_rdwr(UIO_READ, vp, (caddr_t)&dirent,
1478 NANDFS_DIR_REC_LEN(2), (off_t)0, UIO_SYSSPACE,
1479 IO_NODELOCKED | IO_NOMACCHECK, cred, NOCRED,
1483 if (dirent.name_len != 2 ||
1484 dirent.name[0] != '.' ||
1485 dirent.name[1] != '.') {
1489 if (dirent.inode == src->nn_ino) {
1493 if (dirent.inode == rootino)
1496 if ((error = VFS_VGET(vp->v_mount, dirent.inode,
1497 LK_EXCLUSIVE, &vp)) != 0) {
1504 if (error == ENOTDIR)
1505 printf("checkpath: .. not a directory\n");
1512 nandfs_rename(struct vop_rename_args *ap)
1514 struct vnode *tvp = ap->a_tvp;
1515 struct vnode *tdvp = ap->a_tdvp;
1516 struct vnode *fvp = ap->a_fvp;
1517 struct vnode *fdvp = ap->a_fdvp;
1518 struct componentname *tcnp = ap->a_tcnp;
1519 struct componentname *fcnp = ap->a_fcnp;
1520 int doingdirectory = 0, oldparent = 0, newparent = 0;
1523 struct nandfs_node *fdnode, *fnode, *fnode1;
1524 struct nandfs_node *tdnode = VTON(tdvp);
1525 struct nandfs_node *tnode;
1527 uint32_t tdflags, fflags, fdflags;
1530 DPRINTF(VNCALL, ("%s: fdvp:%p fvp:%p tdvp:%p tdp:%p\n", __func__, fdvp,
1534 * Check for cross-device rename.
1536 if ((fvp->v_mount != tdvp->v_mount) ||
1537 (tvp && (fvp->v_mount != tvp->v_mount))) {
1551 tdflags = tdnode->nn_inode.i_flags;
1553 ((VTON(tvp)->nn_inode.i_flags & (NOUNLINK | IMMUTABLE | APPEND)) ||
1554 (tdflags & APPEND))) {
1560 * Renaming a file to itself has no effect. The upper layers should
1561 * not call us in that case. Temporarily just warn if they do.
1564 printf("nandfs_rename: fvp == tvp (can't happen)\n");
1569 if ((error = vn_lock(fvp, LK_EXCLUSIVE)) != 0)
1572 fdnode = VTON(fdvp);
1575 if (fnode->nn_inode.i_links_count >= LINK_MAX) {
1581 fflags = fnode->nn_inode.i_flags;
1582 fdflags = fdnode->nn_inode.i_flags;
1584 if ((fflags & (NOUNLINK | IMMUTABLE | APPEND)) ||
1585 (fdflags & APPEND)) {
1591 mode = fnode->nn_inode.i_mode;
1592 if ((mode & S_IFMT) == S_IFDIR) {
1594 * Avoid ".", "..", and aliases of "." for obvious reasons.
1597 if ((fcnp->cn_namelen == 1 && fcnp->cn_nameptr[0] == '.') ||
1599 ((fcnp->cn_flags | tcnp->cn_flags) & ISDOTDOT) ||
1600 (fnode->nn_flags & IN_RENAME)) {
1605 fnode->nn_flags |= IN_RENAME;
1607 DPRINTF(VNCALL, ("%s: doingdirectory dvp %p\n", __func__,
1609 oldparent = fdnode->nn_ino;
1619 * Bump link count on fvp while we are moving stuff around. If we
1620 * crash before completing the work, the link count may be wrong
1623 fnode->nn_inode.i_links_count++;
1625 /* Check for in path moving XXX */
1626 error = VOP_ACCESS(fvp, VWRITE, tcnp->cn_cred, tcnp->cn_thread);
1628 if (oldparent != tdnode->nn_ino)
1629 newparent = tdnode->nn_ino;
1630 if (doingdirectory && newparent) {
1631 if (error) /* write access check above */
1636 error = nandfs_checkpath(fnode, tdnode, tcnp->cn_cred);
1641 error = relookup(tdvp, &tvp, tcnp);
1645 tdnode = VTON(tdvp);
1652 * If the target doesn't exist, link the target to the source and
1653 * unlink the source. Otherwise, rewrite the target directory to
1654 * reference the source and remove the original entry.
1659 * Account for ".." in new directory.
1661 if (doingdirectory && fdvp != tdvp)
1662 tdnode->nn_inode.i_links_count++;
1664 DPRINTF(VNCALL, ("%s: new entry in dvp:%p\n", __func__, tdvp));
1666 * Add name in new directory.
1668 error = nandfs_add_dirent(tdvp, fnode->nn_ino, tcnp->cn_nameptr,
1669 tcnp->cn_namelen, IFTODT(fnode->nn_inode.i_mode));
1671 if (doingdirectory && fdvp != tdvp)
1672 tdnode->nn_inode.i_links_count--;
1679 * If the parent directory is "sticky", then the user must
1680 * own the parent directory, or the destination of the rename,
1681 * otherwise the destination may not be changed (except by
1682 * root). This implements append-only directories.
1684 if ((tdnode->nn_inode.i_mode & S_ISTXT) &&
1685 tcnp->cn_cred->cr_uid != 0 &&
1686 tcnp->cn_cred->cr_uid != tdnode->nn_inode.i_uid &&
1687 tnode->nn_inode.i_uid != tcnp->cn_cred->cr_uid) {
1692 * Target must be empty if a directory and have no links
1693 * to it. Also, ensure source and target are compatible
1694 * (both directories, or both not directories).
1696 mode = tnode->nn_inode.i_mode;
1697 if ((mode & S_IFMT) == S_IFDIR) {
1698 if (!nandfs_dirempty(tvp, tdnode->nn_ino,
1703 if (!doingdirectory) {
1708 * Update name cache since directory is going away.
1711 } else if (doingdirectory) {
1716 DPRINTF(VNCALL, ("%s: update entry dvp:%p\n", __func__, tdvp));
1718 * Change name tcnp in tdvp to point at fvp.
1720 error = nandfs_update_dirent(tdvp, fnode, tnode);
1724 if (doingdirectory && !newparent)
1725 tdnode->nn_inode.i_links_count--;
1729 tnode->nn_inode.i_links_count--;
1735 * Unlink the source.
1737 fcnp->cn_flags &= ~MODMASK;
1738 fcnp->cn_flags |= LOCKPARENT | LOCKLEAF;
1740 error = relookup(fdvp, &fvp, fcnp);
1745 fdnode = VTON(fdvp);
1748 * From name has disappeared.
1751 panic("nandfs_rename: lost dir entry");
1756 DPRINTF(VNCALL, ("%s: unlink source fnode:%p\n", __func__, fnode));
1759 * Ensure that the directory entry still exists and has not
1760 * changed while the new name has been entered. If the source is
1761 * a file then the entry may have been unlinked or renamed. In
1762 * either case there is no further work to be done. If the source
1763 * is a directory then it cannot have been rmdir'ed; its link
1764 * count of three would cause a rmdir to fail with ENOTEMPTY.
1765 * The IN_RENAME flag ensures that it cannot be moved by another
1768 if (fnode != fnode1) {
1770 panic("nandfs: lost dir entry");
1773 * If the source is a directory with a
1774 * new parent, the link count of the old
1775 * parent directory must be decremented
1776 * and ".." set to point to the new parent.
1778 if (doingdirectory && newparent) {
1779 DPRINTF(VNCALL, ("%s: new parent %#jx -> %#jx\n",
1780 __func__, (uintmax_t) oldparent,
1781 (uintmax_t) newparent));
1782 error = nandfs_update_parent_dir(fvp, newparent);
1784 fdnode->nn_inode.i_links_count--;
1785 fdnode->nn_flags |= IN_CHANGE;
1788 error = nandfs_remove_dirent(fdvp, fnode, fcnp);
1790 fnode->nn_inode.i_links_count--;
1791 fnode->nn_flags |= IN_CHANGE;
1793 fnode->nn_flags &= ~IN_RENAME;
1803 DPRINTF(VNCALL, ("%s: error:%d\n", __func__, error));
1809 fnode->nn_flags &= ~IN_RENAME;
1810 if (vn_lock(fvp, LK_EXCLUSIVE) == 0) {
1811 fnode->nn_inode.i_links_count--;
1812 fnode->nn_flags |= IN_CHANGE;
1813 fnode->nn_flags &= ~IN_RENAME;
1821 nandfs_mkdir(struct vop_mkdir_args *ap)
1823 struct vnode *dvp = ap->a_dvp;
1824 struct vnode **vpp = ap->a_vpp;
1825 struct componentname *cnp = ap->a_cnp;
1826 struct nandfs_node *dir_node = VTON(dvp);
1827 struct nandfs_inode *dir_inode = &dir_node->nn_inode;
1828 struct nandfs_node *node;
1829 struct nandfsmount *nmp = dir_node->nn_nmp;
1830 uint16_t mode = MAKEIMODE(ap->a_vap->va_type, ap->a_vap->va_mode);
1833 DPRINTF(VNCALL, ("%s: dvp %p\n", __func__, dvp));
1835 if (nandfs_fs_full(dir_node->nn_nandfsdev))
1838 if (dir_inode->i_links_count >= LINK_MAX)
1841 error = nandfs_node_create(nmp, &node, mode);
1845 node->nn_inode.i_gid = dir_node->nn_inode.i_gid;
1846 node->nn_inode.i_uid = cnp->cn_cred->cr_uid;
1850 error = nandfs_add_dirent(dvp, node->nn_ino, cnp->cn_nameptr,
1851 cnp->cn_namelen, IFTODT(mode));
1857 dir_node->nn_inode.i_links_count++;
1858 dir_node->nn_flags |= IN_CHANGE;
1860 error = nandfs_init_dir(NTOV(node), node->nn_ino, dir_node->nn_ino);
1866 DPRINTF(VNCALL, ("created dir vp %p nandnode %p ino %jx\n", *vpp, node,
1867 (uintmax_t)node->nn_ino));
1872 nandfs_mknod(struct vop_mknod_args *ap)
1874 struct vnode *dvp = ap->a_dvp;
1875 struct vnode **vpp = ap->a_vpp;
1876 struct vattr *vap = ap->a_vap;
1877 uint16_t mode = MAKEIMODE(vap->va_type, vap->va_mode);
1878 struct componentname *cnp = ap->a_cnp;
1879 struct nandfs_node *dir_node = VTON(dvp);
1880 struct nandfsmount *nmp = dir_node->nn_nmp;
1881 struct nandfs_node *node;
1884 if (nandfs_fs_full(dir_node->nn_nandfsdev))
1887 error = nandfs_node_create(nmp, &node, mode);
1890 node->nn_inode.i_gid = dir_node->nn_inode.i_gid;
1891 node->nn_inode.i_uid = cnp->cn_cred->cr_uid;
1892 if (vap->va_rdev != VNOVAL)
1893 node->nn_inode.i_special = vap->va_rdev;
1897 if (nandfs_add_dirent(dvp, node->nn_ino, cnp->cn_nameptr,
1898 cnp->cn_namelen, IFTODT(mode))) {
1903 node->nn_flags |= IN_ACCESS | IN_CHANGE | IN_UPDATE;
1909 nandfs_symlink(struct vop_symlink_args *ap)
1911 struct vnode **vpp = ap->a_vpp;
1912 struct vnode *dvp = ap->a_dvp;
1913 uint16_t mode = MAKEIMODE(ap->a_vap->va_type, ap->a_vap->va_mode);
1914 struct componentname *cnp = ap->a_cnp;
1915 struct nandfs_node *dir_node = VTON(dvp);
1916 struct nandfsmount *nmp = dir_node->nn_nmp;
1917 struct nandfs_node *node;
1920 if (nandfs_fs_full(dir_node->nn_nandfsdev))
1923 error = nandfs_node_create(nmp, &node, S_IFLNK | mode);
1926 node->nn_inode.i_gid = dir_node->nn_inode.i_gid;
1927 node->nn_inode.i_uid = cnp->cn_cred->cr_uid;
1931 if (nandfs_add_dirent(dvp, node->nn_ino, cnp->cn_nameptr,
1932 cnp->cn_namelen, IFTODT(mode))) {
1938 len = strlen(ap->a_target);
1939 error = vn_rdwr(UIO_WRITE, *vpp, ap->a_target, len, (off_t)0,
1940 UIO_SYSSPACE, IO_NODELOCKED | IO_NOMACCHECK,
1941 cnp->cn_cred, NOCRED, NULL, NULL);
1949 nandfs_readlink(struct vop_readlink_args *ap)
1951 struct vnode *vp = ap->a_vp;
1953 return (VOP_READ(vp, ap->a_uio, 0, ap->a_cred));
1957 nandfs_rmdir(struct vop_rmdir_args *ap)
1959 struct vnode *vp = ap->a_vp;
1960 struct vnode *dvp = ap->a_dvp;
1961 struct componentname *cnp = ap->a_cnp;
1962 struct nandfs_node *node, *dnode;
1963 uint32_t dflag, flag;
1969 /* Files marked as immutable or append-only cannot be deleted. */
1970 if ((node->nn_inode.i_flags & (IMMUTABLE | APPEND | NOUNLINK)) ||
1971 (dnode->nn_inode.i_flags & APPEND))
1974 DPRINTF(VNCALL, ("%s: dvp %p vp %p nandnode %p ino %#jx\n", __func__,
1975 dvp, vp, node, (uintmax_t)node->nn_ino));
1977 if (node->nn_inode.i_links_count < 2)
1980 if (!nandfs_dirempty(vp, dnode->nn_ino, cnp->cn_cred))
1983 /* Files marked as immutable or append-only cannot be deleted. */
1984 dflag = dnode->nn_inode.i_flags;
1985 flag = node->nn_inode.i_flags;
1986 if ((dflag & APPEND) ||
1987 (flag & (NOUNLINK | IMMUTABLE | APPEND))) {
1991 if (vp->v_mountedhere != 0)
1994 nandfs_remove_dirent(dvp, node, cnp);
1995 dnode->nn_inode.i_links_count -= 1;
1996 dnode->nn_flags |= IN_CHANGE;
2000 error = nandfs_truncate(vp, (uint64_t)0);
2004 node->nn_inode.i_links_count -= 2;
2005 node->nn_flags |= IN_CHANGE;
2013 nandfs_fsync(struct vop_fsync_args *ap)
2015 struct vnode *vp = ap->a_vp;
2016 struct nandfs_node *node = VTON(vp);
2019 DPRINTF(VNCALL, ("%s: vp %p nandnode %p ino %#jx\n", __func__, vp,
2020 node, (uintmax_t)node->nn_ino));
2023 * Start syncing vnode only if inode was modified or
2024 * there are some dirty buffers
2026 if (VTON(vp)->nn_flags & IN_MODIFIED ||
2027 vp->v_bufobj.bo_dirty.bv_cnt) {
2028 locked = VOP_ISLOCKED(vp);
2030 nandfs_wakeup_wait_sync(node->nn_nandfsdev, SYNCER_FSYNC);
2031 VOP_LOCK(vp, locked | LK_RETRY);
2038 nandfs_bmap(struct vop_bmap_args *ap)
2040 struct vnode *vp = ap->a_vp;
2041 struct nandfs_node *nnode = VTON(vp);
2042 struct nandfs_device *nandfsdev = nnode->nn_nandfsdev;
2043 nandfs_daddr_t l2vmap, v2pmap;
2045 int blk2dev = nandfsdev->nd_blocksize / DEV_BSIZE;
2047 DPRINTF(VNCALL, ("%s: vp %p nandnode %p ino %#jx\n", __func__, vp,
2048 nnode, (uintmax_t)nnode->nn_ino));
2050 if (ap->a_bop != NULL)
2051 *ap->a_bop = &nandfsdev->nd_devvp->v_bufobj;
2052 if (ap->a_bnp == NULL)
2054 if (ap->a_runp != NULL)
2056 if (ap->a_runb != NULL)
2060 * Translate all the block sectors into a series of buffers to read
2061 * asynchronously from the nandfs device. Note that this lookup may
2062 * induce readin's too.
2065 /* Get virtual block numbers for the vnode's buffer span */
2066 error = nandfs_bmap_lookup(nnode, ap->a_bn, &l2vmap);
2070 /* Translate virtual block numbers to physical block numbers */
2071 error = nandfs_vtop(nnode, l2vmap, &v2pmap);
2075 /* Note virtual block 0 marks not mapped */
2079 *ap->a_bnp = v2pmap * blk2dev; /* in DEV_BSIZE */
2081 DPRINTF(VNCALL, ("%s: vp %p nandnode %p ino %#jx lblk %jx -> blk %jx\n",
2082 __func__, vp, nnode, (uintmax_t)nnode->nn_ino, (uintmax_t)ap->a_bn,
2083 (uintmax_t)*ap->a_bnp ));
2089 nandfs_force_syncer(struct nandfsmount *nmp)
2092 nmp->nm_flags |= NANDFS_FORCE_SYNCER;
2093 nandfs_wakeup_wait_sync(nmp->nm_nandfsdev, SYNCER_FFORCE);
2097 nandfs_ioctl(struct vop_ioctl_args *ap)
2099 struct vnode *vp = ap->a_vp;
2100 u_long command = ap->a_command;
2101 caddr_t data = ap->a_data;
2102 struct nandfs_node *node = VTON(vp);
2103 struct nandfs_device *nandfsdev = node->nn_nandfsdev;
2104 struct nandfsmount *nmp = node->nn_nmp;
2105 uint64_t *tab, *cno;
2106 struct nandfs_seg_stat *nss;
2107 struct nandfs_cpmode *ncpm;
2108 struct nandfs_argv *nargv;
2109 struct nandfs_cpstat *ncp;
2112 DPRINTF(VNCALL, ("%s: %x\n", __func__, (uint32_t)command));
2114 error = priv_check(ap->a_td, PRIV_VFS_MOUNT);
2118 if (nmp->nm_ronly) {
2120 case NANDFS_IOCTL_GET_FSINFO:
2121 case NANDFS_IOCTL_GET_SUSTAT:
2122 case NANDFS_IOCTL_GET_CPINFO:
2123 case NANDFS_IOCTL_GET_CPSTAT:
2124 case NANDFS_IOCTL_GET_SUINFO:
2125 case NANDFS_IOCTL_GET_VINFO:
2126 case NANDFS_IOCTL_GET_BDESCS:
2134 case NANDFS_IOCTL_GET_FSINFO:
2135 error = nandfs_get_fsinfo(nmp, (struct nandfs_fsinfo *)data);
2137 case NANDFS_IOCTL_GET_SUSTAT:
2138 nss = (struct nandfs_seg_stat *)data;
2139 error = nandfs_get_seg_stat(nandfsdev, nss);
2141 case NANDFS_IOCTL_CHANGE_CPMODE:
2142 ncpm = (struct nandfs_cpmode *)data;
2143 error = nandfs_chng_cpmode(nandfsdev->nd_cp_node, ncpm);
2144 nandfs_force_syncer(nmp);
2146 case NANDFS_IOCTL_GET_CPINFO:
2147 nargv = (struct nandfs_argv *)data;
2148 error = nandfs_get_cpinfo_ioctl(nandfsdev->nd_cp_node, nargv);
2150 case NANDFS_IOCTL_DELETE_CP:
2151 tab = (uint64_t *)data;
2152 error = nandfs_delete_cp(nandfsdev->nd_cp_node, tab[0], tab[1]);
2153 nandfs_force_syncer(nmp);
2155 case NANDFS_IOCTL_GET_CPSTAT:
2156 ncp = (struct nandfs_cpstat *)data;
2157 error = nandfs_get_cpstat(nandfsdev->nd_cp_node, ncp);
2159 case NANDFS_IOCTL_GET_SUINFO:
2160 nargv = (struct nandfs_argv *)data;
2161 error = nandfs_get_segment_info_ioctl(nandfsdev, nargv);
2163 case NANDFS_IOCTL_GET_VINFO:
2164 nargv = (struct nandfs_argv *)data;
2165 error = nandfs_get_dat_vinfo_ioctl(nandfsdev, nargv);
2167 case NANDFS_IOCTL_GET_BDESCS:
2168 nargv = (struct nandfs_argv *)data;
2169 error = nandfs_get_dat_bdescs_ioctl(nandfsdev, nargv);
2171 case NANDFS_IOCTL_SYNC:
2172 cno = (uint64_t *)data;
2173 nandfs_force_syncer(nmp);
2174 *cno = nandfsdev->nd_last_cno;
2177 case NANDFS_IOCTL_MAKE_SNAP:
2178 cno = (uint64_t *)data;
2179 error = nandfs_make_snap(nandfsdev, cno);
2180 nandfs_force_syncer(nmp);
2182 case NANDFS_IOCTL_DELETE_SNAP:
2183 cno = (uint64_t *)data;
2184 error = nandfs_delete_snap(nandfsdev, *cno);
2185 nandfs_force_syncer(nmp);
2196 * Whiteout vnode call
2199 nandfs_whiteout(struct vop_whiteout_args *ap)
2201 struct vnode *dvp = ap->a_dvp;
2202 struct componentname *cnp = ap->a_cnp;
2205 switch (ap->a_flags) {
2209 /* Create a new directory whiteout */
2211 if ((cnp->cn_flags & SAVENAME) == 0)
2212 panic("ufs_whiteout: missing name");
2214 error = nandfs_add_dirent(dvp, NANDFS_WHT_INO, cnp->cn_nameptr,
2215 cnp->cn_namelen, DT_WHT);
2219 /* Remove an existing directory whiteout */
2220 cnp->cn_flags &= ~DOWHITEOUT;
2221 error = nandfs_remove_dirent(dvp, NULL, cnp);
2224 panic("nandf_whiteout: unknown op: %d", ap->a_flags);
2231 nandfs_pathconf(struct vop_pathconf_args *ap)
2236 switch (ap->a_name) {
2238 *ap->a_retval = LINK_MAX;
2241 *ap->a_retval = NAME_MAX;
2244 *ap->a_retval = PATH_MAX;
2247 *ap->a_retval = PIPE_BUF;
2249 case _PC_CHOWN_RESTRICTED:
2255 case _PC_ACL_EXTENDED:
2258 case _PC_ALLOC_SIZE_MIN:
2259 *ap->a_retval = ap->a_vp->v_mount->mnt_stat.f_bsize;
2261 case _PC_FILESIZEBITS:
2264 case _PC_REC_INCR_XFER_SIZE:
2265 *ap->a_retval = ap->a_vp->v_mount->mnt_stat.f_iosize;
2267 case _PC_REC_MAX_XFER_SIZE:
2268 *ap->a_retval = -1; /* means ``unlimited'' */
2270 case _PC_REC_MIN_XFER_SIZE:
2271 *ap->a_retval = ap->a_vp->v_mount->mnt_stat.f_iosize;
2281 nandfs_vnlock1(struct vop_lock1_args *ap)
2283 struct vnode *vp = ap->a_vp;
2284 struct nandfs_node *node = VTON(vp);
2285 int error, vi_locked;
2288 * XXX can vnode go away while we are sleeping?
2290 vi_locked = mtx_owned(&vp->v_interlock);
2293 error = NANDFS_WRITELOCKFLAGS(node->nn_nandfsdev,
2294 ap->a_flags & LK_NOWAIT);
2295 if (vi_locked && !error)
2300 error = vop_stdlock(ap);
2302 NANDFS_WRITEUNLOCK(node->nn_nandfsdev);
2310 nandfs_vnunlock(struct vop_unlock_args *ap)
2312 struct vnode *vp = ap->a_vp;
2313 struct nandfs_node *node = VTON(vp);
2316 error = vop_stdunlock(ap);
2320 NANDFS_WRITEUNLOCK(node->nn_nandfsdev);
2326 * Global vfs data structures
2328 struct vop_vector nandfs_vnodeops = {
2329 .vop_default = &default_vnodeops,
2330 .vop_access = nandfs_access,
2331 .vop_advlock = nandfs_advlock,
2332 .vop_bmap = nandfs_bmap,
2333 .vop_close = nandfs_close,
2334 .vop_create = nandfs_create,
2335 .vop_fsync = nandfs_fsync,
2336 .vop_getattr = nandfs_getattr,
2337 .vop_inactive = nandfs_inactive,
2338 .vop_cachedlookup = nandfs_lookup,
2339 .vop_ioctl = nandfs_ioctl,
2340 .vop_link = nandfs_link,
2341 .vop_lookup = vfs_cache_lookup,
2342 .vop_mkdir = nandfs_mkdir,
2343 .vop_mknod = nandfs_mknod,
2344 .vop_open = nandfs_open,
2345 .vop_pathconf = nandfs_pathconf,
2346 .vop_print = nandfs_print,
2347 .vop_read = nandfs_read,
2348 .vop_readdir = nandfs_readdir,
2349 .vop_readlink = nandfs_readlink,
2350 .vop_reclaim = nandfs_reclaim,
2351 .vop_remove = nandfs_remove,
2352 .vop_rename = nandfs_rename,
2353 .vop_rmdir = nandfs_rmdir,
2354 .vop_whiteout = nandfs_whiteout,
2355 .vop_write = nandfs_write,
2356 .vop_setattr = nandfs_setattr,
2357 .vop_strategy = nandfs_strategy,
2358 .vop_symlink = nandfs_symlink,
2359 .vop_lock1 = nandfs_vnlock1,
2360 .vop_unlock = nandfs_vnunlock,
2363 struct vop_vector nandfs_system_vnodeops = {
2364 .vop_default = &default_vnodeops,
2365 .vop_close = nandfs_close,
2366 .vop_inactive = nandfs_inactive,
2367 .vop_reclaim = nandfs_reclaim,
2368 .vop_strategy = nandfs_strategy,
2369 .vop_fsync = nandfs_fsync,
2370 .vop_bmap = nandfs_bmap,
2371 .vop_access = VOP_PANIC,
2372 .vop_advlock = VOP_PANIC,
2373 .vop_create = VOP_PANIC,
2374 .vop_getattr = VOP_PANIC,
2375 .vop_cachedlookup = VOP_PANIC,
2376 .vop_ioctl = VOP_PANIC,
2377 .vop_link = VOP_PANIC,
2378 .vop_lookup = VOP_PANIC,
2379 .vop_mkdir = VOP_PANIC,
2380 .vop_mknod = VOP_PANIC,
2381 .vop_open = VOP_PANIC,
2382 .vop_pathconf = VOP_PANIC,
2383 .vop_print = VOP_PANIC,
2384 .vop_read = VOP_PANIC,
2385 .vop_readdir = VOP_PANIC,
2386 .vop_readlink = VOP_PANIC,
2387 .vop_remove = VOP_PANIC,
2388 .vop_rename = VOP_PANIC,
2389 .vop_rmdir = VOP_PANIC,
2390 .vop_whiteout = VOP_PANIC,
2391 .vop_write = VOP_PANIC,
2392 .vop_setattr = VOP_PANIC,
2393 .vop_symlink = VOP_PANIC,
2397 nandfsfifo_close(struct vop_close_args *ap)
2399 struct vnode *vp = ap->a_vp;
2400 struct nandfs_node *node = VTON(vp);
2402 DPRINTF(VNCALL, ("%s: vp %p node %p\n", __func__, vp, node));
2404 mtx_lock(&vp->v_interlock);
2405 if (vp->v_usecount > 1)
2406 nandfs_itimes_locked(vp);
2407 mtx_unlock(&vp->v_interlock);
2409 return (fifo_specops.vop_close(ap));
2412 struct vop_vector nandfs_fifoops = {
2413 .vop_default = &fifo_specops,
2414 .vop_fsync = VOP_PANIC,
2415 .vop_access = nandfs_access,
2416 .vop_close = nandfsfifo_close,
2417 .vop_getattr = nandfs_getattr,
2418 .vop_inactive = nandfs_inactive,
2419 .vop_print = nandfs_print,
2420 .vop_read = VOP_PANIC,
2421 .vop_reclaim = nandfs_reclaim,
2422 .vop_setattr = nandfs_setattr,
2423 .vop_write = VOP_PANIC,
2424 .vop_lock1 = nandfs_vnlock1,
2425 .vop_unlock = nandfs_vnunlock,
2429 nandfs_vinit(struct vnode *vp, uint64_t ino)
2431 struct nandfs_node *node;
2433 ASSERT_VOP_LOCKED(vp, __func__);
2437 /* Check if we're fetching the root */
2438 if (ino == NANDFS_ROOT_INO)
2439 vp->v_vflag |= VV_ROOT;
2441 if (ino != NANDFS_GC_INO)
2442 vp->v_type = IFTOVT(node->nn_inode.i_mode);
2446 if (vp->v_type == VFIFO)
2447 vp->v_op = &nandfs_fifoops;