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,
411 /* keep the component name */
412 cnp->cn_flags |= SAVENAME;
418 if (ino == NANDFS_WHT_INO)
419 cnp->cn_flags |= ISWHITEOUT;
421 if ((cnp->cn_flags & ISWHITEOUT) &&
425 if ((nameiop == DELETE) && islastcn) {
426 if ((cnp->cn_flags & ISWHITEOUT) &&
427 (cnp->cn_flags & DOWHITEOUT)) {
428 cnp->cn_flags |= SAVENAME;
429 dir_node->nn_diroff = off;
430 return (EJUSTRETURN);
433 error = VOP_ACCESS(dvp, VWRITE, cred,
438 /* Try to create/reuse the node */
439 error = nandfs_get_node(nmp, ino, &node);
442 node->nn_diroff = off;
445 if ((dir_node->nn_inode.i_mode & ISVTX) &&
447 cred->cr_uid != dir_node->nn_inode.i_uid &&
448 node->nn_inode.i_uid != cred->cr_uid) {
453 } else if ((nameiop == RENAME) && islastcn) {
454 error = VOP_ACCESS(dvp, VWRITE, cred,
459 /* Try to create/reuse the node */
460 error = nandfs_get_node(nmp, ino, &node);
463 node->nn_diroff = off;
466 /* Try to create/reuse the node */
467 error = nandfs_get_node(nmp, ino, &node);
470 node->nn_diroff = off;
478 * Store result in the cache if requested. If we are creating a file,
479 * the file might not be found and thus putting it into the namecache
480 * might be seen as negative caching.
482 if ((cnp->cn_flags & MAKEENTRY) && nameiop != CREATE)
483 cache_enter(dvp, *vpp, cnp);
490 nandfs_getattr(struct vop_getattr_args *ap)
492 struct vnode *vp = ap->a_vp;
493 struct vattr *vap = ap->a_vap;
494 struct nandfs_node *node = VTON(vp);
495 struct nandfs_inode *inode = &node->nn_inode;
497 DPRINTF(VNCALL, ("%s: vp: %p\n", __func__, vp));
502 vap->va_atime.tv_sec = inode->i_mtime;
503 vap->va_atime.tv_nsec = inode->i_mtime_nsec;
504 vap->va_mtime.tv_sec = inode->i_mtime;
505 vap->va_mtime.tv_nsec = inode->i_mtime_nsec;
506 vap->va_ctime.tv_sec = inode->i_ctime;
507 vap->va_ctime.tv_nsec = inode->i_ctime_nsec;
508 vap->va_type = IFTOVT(inode->i_mode);
509 vap->va_mode = inode->i_mode & ~S_IFMT;
510 vap->va_nlink = inode->i_links_count;
511 vap->va_uid = inode->i_uid;
512 vap->va_gid = inode->i_gid;
513 vap->va_rdev = inode->i_special;
514 vap->va_fsid = vp->v_mount->mnt_stat.f_fsid.val[0];
515 vap->va_fileid = node->nn_ino;
516 vap->va_size = inode->i_size;
517 vap->va_blocksize = node->nn_nandfsdev->nd_blocksize;
519 vap->va_flags = inode->i_flags;
520 vap->va_bytes = inode->i_blocks * vap->va_blocksize;
528 nandfs_vtruncbuf(struct vnode *vp, uint64_t nblks)
530 struct nandfs_device *nffsdev;
532 struct buf *bp, *nbp;
535 nffsdev = VTON(vp)->nn_nandfsdev;
537 ASSERT_VOP_LOCKED(vp, "nandfs_truncate");
541 TAILQ_FOREACH_SAFE(bp, &bo->bo_clean.bv_hd, b_bobufs, nbp) {
542 if (bp->b_lblkno < nblks)
544 if (BUF_LOCK(bp, LK_EXCLUSIVE | LK_NOWAIT, NULL))
548 bp->b_flags |= (B_INVAL | B_RELBUF);
549 bp->b_flags &= ~(B_ASYNC | B_MANAGED);
555 TAILQ_FOREACH_SAFE(bp, &bo->bo_dirty.bv_hd, b_bobufs, nbp) {
556 if (bp->b_lblkno < nblks)
559 LK_EXCLUSIVE | LK_SLEEPFAIL | LK_INTERLOCK,
560 BO_LOCKPTR(bo)) == ENOLCK)
562 bp->b_flags |= (B_INVAL | B_RELBUF);
563 bp->b_flags &= ~(B_ASYNC | B_MANAGED);
565 nandfs_dirty_bufs_decrement(nffsdev);
575 nandfs_truncate(struct vnode *vp, uint64_t newsize)
577 struct nandfs_device *nffsdev;
578 struct nandfs_node *node;
579 struct nandfs_inode *inode;
580 struct buf *bp = NULL;
581 uint64_t oblks, nblks, vblk, size, rest;
585 nffsdev = node->nn_nandfsdev;
586 inode = &node->nn_inode;
588 /* Calculate end of file */
589 size = inode->i_size;
591 if (newsize == size) {
592 node->nn_flags |= IN_CHANGE | IN_UPDATE;
597 if (newsize > size) {
598 inode->i_size = newsize;
599 vnode_pager_setsize(vp, newsize);
600 node->nn_flags |= IN_CHANGE | IN_UPDATE;
605 nblks = howmany(newsize, nffsdev->nd_blocksize);
606 oblks = howmany(size, nffsdev->nd_blocksize);
607 rest = newsize % nffsdev->nd_blocksize;
610 error = nandfs_bmap_lookup(node, nblks - 1, &vblk);
615 error = nandfs_bread(node, nblks - 1, NOCRED, 0, &bp);
617 error = nandfs_bcreate(node, nblks - 1, NOCRED, 0, &bp);
625 bzero((char *)bp->b_data + rest,
626 (u_int)(nffsdev->nd_blocksize - rest));
627 error = nandfs_dirty_buf(bp, 0);
632 DPRINTF(VNCALL, ("%s: vp %p oblks %jx nblks %jx\n", __func__, vp, oblks,
635 error = nandfs_bmap_truncate_mapping(node, oblks - 1, nblks - 1);
638 nandfs_undirty_buf(bp);
642 error = nandfs_vtruncbuf(vp, nblks);
645 nandfs_undirty_buf(bp);
649 inode->i_size = newsize;
650 vnode_pager_setsize(vp, newsize);
651 node->nn_flags |= IN_CHANGE | IN_UPDATE;
658 nandfs_itimes_locked(struct vnode *vp)
660 struct nandfs_node *node;
661 struct nandfs_inode *inode;
664 ASSERT_VI_LOCKED(vp, __func__);
667 inode = &node->nn_inode;
669 if ((node->nn_flags & (IN_ACCESS | IN_CHANGE | IN_UPDATE)) == 0)
672 if (((vp->v_mount->mnt_kern_flag &
673 (MNTK_SUSPENDED | MNTK_SUSPEND)) == 0) ||
674 (node->nn_flags & (IN_CHANGE | IN_UPDATE)))
675 node->nn_flags |= IN_MODIFIED;
678 if (node->nn_flags & IN_UPDATE) {
679 inode->i_mtime = ts.tv_sec;
680 inode->i_mtime_nsec = ts.tv_nsec;
682 if (node->nn_flags & IN_CHANGE) {
683 inode->i_ctime = ts.tv_sec;
684 inode->i_ctime_nsec = ts.tv_nsec;
687 node->nn_flags &= ~(IN_ACCESS | IN_CHANGE | IN_UPDATE);
691 nandfs_itimes(struct vnode *vp)
695 nandfs_itimes_locked(vp);
700 nandfs_chmod(struct vnode *vp, int mode, struct ucred *cred, struct thread *td)
702 struct nandfs_node *node = VTON(vp);
703 struct nandfs_inode *inode = &node->nn_inode;
707 DPRINTF(VNCALL, ("%s: vp %p, mode %x, cred %p, td %p\n", __func__, vp,
710 * To modify the permissions on a file, must possess VADMIN
713 if ((error = VOP_ACCESS(vp, VADMIN, cred, td)))
717 * Privileged processes may set the sticky bit on non-directories,
718 * as well as set the setgid bit on a file with a group that the
719 * process is not a member of. Both of these are allowed in
722 if (vp->v_type != VDIR && (mode & S_ISTXT)) {
723 if (priv_check_cred(cred, PRIV_VFS_STICKYFILE, 0))
726 if (!groupmember(inode->i_gid, cred) && (mode & ISGID)) {
727 error = priv_check_cred(cred, PRIV_VFS_SETGID, 0);
733 * Deny setting setuid if we are not the file owner.
735 if ((mode & ISUID) && inode->i_uid != cred->cr_uid) {
736 error = priv_check_cred(cred, PRIV_VFS_ADMIN, 0);
741 nmode = inode->i_mode;
743 nmode |= (mode & ALLPERMS);
744 inode->i_mode = nmode;
745 node->nn_flags |= IN_CHANGE;
747 DPRINTF(VNCALL, ("%s: to mode %x\n", __func__, nmode));
753 nandfs_chown(struct vnode *vp, uid_t uid, gid_t gid, struct ucred *cred,
756 struct nandfs_node *node = VTON(vp);
757 struct nandfs_inode *inode = &node->nn_inode;
762 if (uid == (uid_t)VNOVAL)
764 if (gid == (gid_t)VNOVAL)
767 * To modify the ownership of a file, must possess VADMIN for that
770 if ((error = VOP_ACCESSX(vp, VWRITE_OWNER, cred, td)))
773 * To change the owner of a file, or change the group of a file to a
774 * group of which we are not a member, the caller must have
777 if (((uid != inode->i_uid && uid != cred->cr_uid) ||
778 (gid != inode->i_gid && !groupmember(gid, cred))) &&
779 (error = priv_check_cred(cred, PRIV_VFS_CHOWN, 0)))
787 node->nn_flags |= IN_CHANGE;
788 if ((inode->i_mode & (ISUID | ISGID)) &&
789 (ouid != uid || ogid != gid)) {
790 if (priv_check_cred(cred, PRIV_VFS_RETAINSUGID, 0)) {
791 inode->i_mode &= ~(ISUID | ISGID);
794 DPRINTF(VNCALL, ("%s: vp %p, cred %p, td %p - ret OK\n", __func__, vp,
800 nandfs_setattr(struct vop_setattr_args *ap)
802 struct vnode *vp = ap->a_vp;
803 struct nandfs_node *node = VTON(vp);
804 struct nandfs_inode *inode = &node->nn_inode;
805 struct vattr *vap = ap->a_vap;
806 struct ucred *cred = ap->a_cred;
807 struct thread *td = curthread;
811 if ((vap->va_type != VNON) || (vap->va_nlink != VNOVAL) ||
812 (vap->va_fsid != VNOVAL) || (vap->va_fileid != VNOVAL) ||
813 (vap->va_blocksize != VNOVAL) || (vap->va_rdev != VNOVAL) ||
814 (vap->va_bytes != VNOVAL) || (vap->va_gen != VNOVAL)) {
815 DPRINTF(VNCALL, ("%s: unsettable attribute\n", __func__));
819 if (vap->va_flags != VNOVAL) {
820 DPRINTF(VNCALL, ("%s: vp:%p td:%p flags:%lx\n", __func__, vp,
823 if (vp->v_mount->mnt_flag & MNT_RDONLY)
826 * Callers may only modify the file flags on objects they
827 * have VADMIN rights for.
829 if ((error = VOP_ACCESS(vp, VADMIN, cred, td)))
832 * Unprivileged processes are not permitted to unset system
833 * flags, or modify flags if any system flags are set.
834 * Privileged non-jail processes may not modify system flags
835 * if securelevel > 0 and any existing system flags are set.
836 * Privileged jail processes behave like privileged non-jail
837 * processes if the security.jail.chflags_allowed sysctl is
838 * is non-zero; otherwise, they behave like unprivileged
842 flags = inode->i_flags;
843 if (!priv_check_cred(cred, PRIV_VFS_SYSFLAGS, 0)) {
844 if (flags & (SF_NOUNLINK | SF_IMMUTABLE | SF_APPEND)) {
845 error = securelevel_gt(cred, 0);
849 /* Snapshot flag cannot be set or cleared */
850 if (((vap->va_flags & SF_SNAPSHOT) != 0 &&
851 (flags & SF_SNAPSHOT) == 0) ||
852 ((vap->va_flags & SF_SNAPSHOT) == 0 &&
853 (flags & SF_SNAPSHOT) != 0))
856 inode->i_flags = vap->va_flags;
858 if (flags & (SF_NOUNLINK | SF_IMMUTABLE | SF_APPEND) ||
859 (vap->va_flags & UF_SETTABLE) != vap->va_flags)
862 flags &= SF_SETTABLE;
863 flags |= (vap->va_flags & UF_SETTABLE);
864 inode->i_flags = flags;
866 node->nn_flags |= IN_CHANGE;
867 if (vap->va_flags & (IMMUTABLE | APPEND))
870 if (inode->i_flags & (IMMUTABLE | APPEND))
873 if (vap->va_size != (u_quad_t)VNOVAL) {
874 DPRINTF(VNCALL, ("%s: vp:%p td:%p size:%jx\n", __func__, vp, td,
875 (uintmax_t)vap->va_size));
877 switch (vp->v_type) {
882 if (vp->v_mount->mnt_flag & MNT_RDONLY)
884 if ((inode->i_flags & SF_SNAPSHOT) != 0)
891 if (vap->va_size > node->nn_nandfsdev->nd_maxfilesize)
894 KASSERT((vp->v_type == VREG), ("Set size %d", vp->v_type));
895 nandfs_truncate(vp, vap->va_size);
896 node->nn_flags |= IN_CHANGE;
901 if (vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL) {
902 if (vp->v_mount->mnt_flag & MNT_RDONLY)
904 DPRINTF(VNCALL, ("%s: vp:%p td:%p uid/gid %x/%x\n", __func__,
905 vp, td, vap->va_uid, vap->va_gid));
906 error = nandfs_chown(vp, vap->va_uid, vap->va_gid, cred, td);
911 if (vap->va_mode != (mode_t)VNOVAL) {
912 if (vp->v_mount->mnt_flag & MNT_RDONLY)
914 DPRINTF(VNCALL, ("%s: vp:%p td:%p mode %x\n", __func__, vp, td,
917 error = nandfs_chmod(vp, (int)vap->va_mode, cred, td);
921 if (vap->va_atime.tv_sec != VNOVAL ||
922 vap->va_mtime.tv_sec != VNOVAL ||
923 vap->va_birthtime.tv_sec != VNOVAL) {
924 DPRINTF(VNCALL, ("%s: vp:%p td:%p time a/m/b %jx/%jx/%jx\n",
925 __func__, vp, td, (uintmax_t)vap->va_atime.tv_sec,
926 (uintmax_t)vap->va_mtime.tv_sec,
927 (uintmax_t)vap->va_birthtime.tv_sec));
929 if (vap->va_atime.tv_sec != VNOVAL)
930 node->nn_flags |= IN_ACCESS;
931 if (vap->va_mtime.tv_sec != VNOVAL)
932 node->nn_flags |= IN_CHANGE | IN_UPDATE;
933 if (vap->va_birthtime.tv_sec != VNOVAL)
934 node->nn_flags |= IN_MODIFIED;
943 nandfs_open(struct vop_open_args *ap)
945 struct nandfs_node *node = VTON(ap->a_vp);
948 DPRINTF(VNCALL, ("nandfs_open called ap->a_mode %x\n", ap->a_mode));
950 if (ap->a_vp->v_type == VCHR || ap->a_vp->v_type == VBLK)
953 if ((node->nn_inode.i_flags & APPEND) &&
954 (ap->a_mode & (FWRITE | O_APPEND)) == FWRITE)
957 filesize = node->nn_inode.i_size;
958 vnode_create_vobject(ap->a_vp, filesize, ap->a_td);
964 nandfs_close(struct vop_close_args *ap)
966 struct vnode *vp = ap->a_vp;
967 struct nandfs_node *node = VTON(vp);
969 DPRINTF(VNCALL, ("%s: vp %p node %p\n", __func__, vp, node));
971 mtx_lock(&vp->v_interlock);
972 if (vp->v_usecount > 1)
973 nandfs_itimes_locked(vp);
974 mtx_unlock(&vp->v_interlock);
980 nandfs_check_possible(struct vnode *vp, struct vattr *vap, mode_t mode)
983 /* Check if we are allowed to write */
984 switch (vap->va_type) {
989 * Normal nodes: check if we're on a read-only mounted
990 * filingsystem and bomb out if we're trying to write.
992 if ((mode & VWRITE) && (vp->v_mount->mnt_flag & MNT_RDONLY))
1000 * Special nodes: even on read-only mounted filingsystems
1001 * these are allowed to be written to if permissions allow.
1005 /* No idea what this is */
1009 /* Noone may write immutable files */
1010 if ((mode & VWRITE) && (VTON(vp)->nn_inode.i_flags & IMMUTABLE))
1017 nandfs_check_permitted(struct vnode *vp, struct vattr *vap, mode_t mode,
1021 return (vaccess(vp->v_type, vap->va_mode, vap->va_uid, vap->va_gid, mode,
1026 nandfs_advlock(struct vop_advlock_args *ap)
1028 struct nandfs_node *nvp;
1031 nvp = VTON(ap->a_vp);
1032 size = nvp->nn_inode.i_size;
1033 return (lf_advlock(ap, &(nvp->nn_lockf), size));
1037 nandfs_access(struct vop_access_args *ap)
1039 struct vnode *vp = ap->a_vp;
1040 accmode_t accmode = ap->a_accmode;
1041 struct ucred *cred = ap->a_cred;
1045 DPRINTF(VNCALL, ("%s: vp:%p mode: %x\n", __func__, vp, accmode));
1047 error = VOP_GETATTR(vp, &vap, NULL);
1051 error = nandfs_check_possible(vp, &vap, accmode);
1056 error = nandfs_check_permitted(vp, &vap, accmode, cred);
1062 nandfs_print(struct vop_print_args *ap)
1064 struct vnode *vp = ap->a_vp;
1065 struct nandfs_node *nvp = VTON(vp);
1067 printf("\tvp=%p, nandfs_node=%p\n", vp, nvp);
1068 printf("nandfs inode %#jx\n", (uintmax_t)nvp->nn_ino);
1069 printf("flags = 0x%b\n", (u_int)nvp->nn_flags, PRINT_NODE_FLAGS);
1075 nandfs_read_filebuf(struct nandfs_node *node, struct buf *bp)
1077 struct nandfs_device *nandfsdev = node->nn_nandfsdev;
1079 nandfs_daddr_t vblk, pblk;
1083 int blk2dev = nandfsdev->nd_blocksize / DEV_BSIZE;
1086 * Translate all the block sectors into a series of buffers to read
1087 * asynchronously from the nandfs device. Note that this lookup may
1088 * induce readin's too.
1091 blocksize = nandfsdev->nd_blocksize;
1092 if (bp->b_bcount / blocksize != 1)
1093 panic("invalid b_count in bp %p\n", bp);
1097 DPRINTF(READ, ("\tread in from inode %#jx blkno %#jx"
1098 " count %#lx\n", (uintmax_t)node->nn_ino, from,
1101 /* Get virtual block numbers for the vnode's buffer span */
1102 error = nandfs_bmap_lookup(node, from, &vblk);
1104 bp->b_error = EINVAL;
1105 bp->b_ioflags |= BIO_ERROR;
1110 /* Translate virtual block numbers to physical block numbers */
1111 error = nandfs_vtop(node, vblk, &pblk);
1113 bp->b_error = EINVAL;
1114 bp->b_ioflags |= BIO_ERROR;
1119 /* Issue translated blocks */
1120 bp->b_resid = bp->b_bcount;
1122 /* Note virtual block 0 marks not mapped */
1130 nbp->b_blkno = pblk * blk2dev;
1131 bp->b_iooffset = dbtob(nbp->b_blkno);
1132 MPASS(bp->b_iooffset >= 0);
1133 BO_STRATEGY(&nandfsdev->nd_devvp->v_bufobj, nbp);
1134 nandfs_vblk_set(bp, vblk);
1135 DPRINTF(READ, ("read_filebuf : ino %#jx blk %#jx -> "
1136 "%#jx -> %#jx [bp %p]\n", (uintmax_t)node->nn_ino,
1137 (uintmax_t)(from), (uintmax_t)vblk,
1138 (uintmax_t)pblk, nbp));
1142 nandfs_write_filebuf(struct nandfs_node *node, struct buf *bp)
1144 struct nandfs_device *nandfsdev = node->nn_nandfsdev;
1146 bp->b_iooffset = dbtob(bp->b_blkno);
1147 MPASS(bp->b_iooffset >= 0);
1148 BO_STRATEGY(&nandfsdev->nd_devvp->v_bufobj, bp);
1152 nandfs_strategy(struct vop_strategy_args *ap)
1154 struct vnode *vp = ap->a_vp;
1155 struct buf *bp = ap->a_bp;
1156 struct nandfs_node *node = VTON(vp);
1159 /* check if we ought to be here */
1160 KASSERT((vp->v_type != VBLK && vp->v_type != VCHR),
1161 ("nandfs_strategy on type %d", vp->v_type));
1163 /* Translate if needed and pass on */
1164 if (bp->b_iocmd == BIO_READ) {
1165 nandfs_read_filebuf(node, bp);
1169 /* Send to segment collector */
1170 nandfs_write_filebuf(node, bp);
1175 nandfs_readdir(struct vop_readdir_args *ap)
1177 struct uio *uio = ap->a_uio;
1178 struct vnode *vp = ap->a_vp;
1179 struct nandfs_node *node = VTON(vp);
1180 struct nandfs_dir_entry *ndirent;
1181 struct dirent dirent;
1183 uint64_t file_size, diroffset, transoffset, blkoff;
1185 uint32_t blocksize = node->nn_nandfsdev->nd_blocksize;
1186 uint8_t *pos, name_len;
1189 DPRINTF(READDIR, ("nandfs_readdir called\n"));
1191 if (vp->v_type != VDIR)
1194 file_size = node->nn_inode.i_size;
1195 DPRINTF(READDIR, ("nandfs_readdir filesize %jd resid %zd\n",
1196 (uintmax_t)file_size, uio->uio_resid ));
1198 /* We are called just as long as we keep on pushing data in */
1200 if ((uio->uio_offset < file_size) &&
1201 (uio->uio_resid >= sizeof(struct dirent))) {
1202 diroffset = uio->uio_offset;
1203 transoffset = diroffset;
1205 blocknr = diroffset / blocksize;
1206 blkoff = diroffset % blocksize;
1207 error = nandfs_bread(node, blocknr, NOCRED, 0, &bp);
1212 while (diroffset < file_size) {
1213 DPRINTF(READDIR, ("readdir : offset = %"PRIu64"\n",
1215 if (blkoff >= blocksize) {
1216 blkoff = 0; blocknr++;
1218 error = nandfs_bread(node, blocknr, NOCRED, 0,
1226 /* Read in one dirent */
1227 pos = (uint8_t *)bp->b_data + blkoff;
1228 ndirent = (struct nandfs_dir_entry *)pos;
1230 name_len = ndirent->name_len;
1231 memset(&dirent, 0, sizeof(struct dirent));
1232 dirent.d_fileno = ndirent->inode;
1233 if (dirent.d_fileno) {
1234 dirent.d_type = ndirent->file_type;
1235 dirent.d_namlen = name_len;
1236 strncpy(dirent.d_name, ndirent->name, name_len);
1237 dirent.d_reclen = GENERIC_DIRSIZ(&dirent);
1238 DPRINTF(READDIR, ("copying `%*.*s`\n", name_len,
1239 name_len, dirent.d_name));
1243 * If there isn't enough space in the uio to return a
1244 * whole dirent, break off read
1246 if (uio->uio_resid < GENERIC_DIRSIZ(&dirent))
1250 if (dirent.d_fileno)
1251 uiomove(&dirent, GENERIC_DIRSIZ(&dirent), uio);
1254 diroffset += ndirent->rec_len;
1255 blkoff += ndirent->rec_len;
1257 /* Remember the last entry we transfered */
1258 transoffset = diroffset;
1262 /* Pass on last transfered offset */
1263 uio->uio_offset = transoffset;
1267 *ap->a_eofflag = (uio->uio_offset >= file_size);
1273 nandfs_dirempty(struct vnode *dvp, uint64_t parentino, struct ucred *cred)
1275 struct nandfs_node *dnode = VTON(dvp);
1276 struct nandfs_dir_entry *dirent;
1277 uint64_t file_size = dnode->nn_inode.i_size;
1278 uint64_t blockcount = dnode->nn_inode.i_blocks;
1280 uint32_t blocksize = dnode->nn_nandfsdev->nd_blocksize;
1287 DPRINTF(LOOKUP, ("%s: dvp %p parentino %#jx cred %p\n", __func__, dvp,
1288 (uintmax_t)parentino, cred));
1290 KASSERT((file_size != 0), ("nandfs_dirempty for NULL dir %p", dvp));
1293 while (blocknr < blockcount) {
1294 error = nandfs_bread(dnode, blocknr, NOCRED, 0, &bp);
1300 pos = (uint8_t *)bp->b_data;
1303 if (blocknr == (blockcount - 1))
1304 limit = file_size % blocksize;
1308 while (off < limit) {
1309 dirent = (struct nandfs_dir_entry *)(pos + off);
1310 off += dirent->rec_len;
1312 if (dirent->inode == 0)
1315 switch (dirent->name_len) {
1319 if (dirent->name[0] != '.')
1322 KASSERT(dirent->inode == dnode->nn_ino,
1323 (".'s inode does not match dir"));
1326 if (dirent->name[0] != '.' &&
1327 dirent->name[1] != '.')
1330 KASSERT(dirent->inode == parentino,
1331 ("..'s inode does not match parent"));
1349 nandfs_link(struct vop_link_args *ap)
1351 struct vnode *tdvp = ap->a_tdvp;
1352 struct vnode *vp = ap->a_vp;
1353 struct componentname *cnp = ap->a_cnp;
1354 struct nandfs_node *node = VTON(vp);
1355 struct nandfs_inode *inode = &node->nn_inode;
1358 if (tdvp->v_mount != vp->v_mount)
1361 if (inode->i_links_count >= LINK_MAX)
1364 if (inode->i_flags & (IMMUTABLE | APPEND))
1367 /* Update link count */
1368 inode->i_links_count++;
1371 error = nandfs_add_dirent(tdvp, node->nn_ino, cnp->cn_nameptr,
1372 cnp->cn_namelen, IFTODT(inode->i_mode));
1374 inode->i_links_count--;
1377 node->nn_flags |= IN_CHANGE;
1379 DPRINTF(VNCALL, ("%s: tdvp %p vp %p cnp %p\n",
1380 __func__, tdvp, vp, cnp));
1386 nandfs_create(struct vop_create_args *ap)
1388 struct vnode *dvp = ap->a_dvp;
1389 struct vnode **vpp = ap->a_vpp;
1390 struct componentname *cnp = ap->a_cnp;
1391 uint16_t mode = MAKEIMODE(ap->a_vap->va_type, ap->a_vap->va_mode);
1392 struct nandfs_node *dir_node = VTON(dvp);
1393 struct nandfsmount *nmp = dir_node->nn_nmp;
1394 struct nandfs_node *node;
1397 DPRINTF(VNCALL, ("%s: dvp %p\n", __func__, dvp));
1399 if (nandfs_fs_full(dir_node->nn_nandfsdev))
1402 /* Create new vnode/inode */
1403 error = nandfs_node_create(nmp, &node, mode);
1406 node->nn_inode.i_gid = dir_node->nn_inode.i_gid;
1407 node->nn_inode.i_uid = cnp->cn_cred->cr_uid;
1409 /* Add new dir entry */
1410 error = nandfs_add_dirent(dvp, node->nn_ino, cnp->cn_nameptr,
1411 cnp->cn_namelen, IFTODT(mode));
1413 if (nandfs_node_destroy(node)) {
1414 nandfs_error("%s: error destroying node %p\n",
1421 DPRINTF(VNCALL, ("created file vp %p nandnode %p ino %jx\n", *vpp, node,
1422 (uintmax_t)node->nn_ino));
1427 nandfs_remove(struct vop_remove_args *ap)
1429 struct vnode *vp = ap->a_vp;
1430 struct vnode *dvp = ap->a_dvp;
1431 struct nandfs_node *node = VTON(vp);
1432 struct nandfs_node *dnode = VTON(dvp);
1433 struct componentname *cnp = ap->a_cnp;
1435 DPRINTF(VNCALL, ("%s: dvp %p vp %p nandnode %p ino %#jx link %d\n",
1436 __func__, dvp, vp, node, (uintmax_t)node->nn_ino,
1437 node->nn_inode.i_links_count));
1439 if (vp->v_type == VDIR)
1442 /* Files marked as immutable or append-only cannot be deleted. */
1443 if ((node->nn_inode.i_flags & (IMMUTABLE | APPEND | NOUNLINK)) ||
1444 (dnode->nn_inode.i_flags & APPEND))
1447 nandfs_remove_dirent(dvp, node, cnp);
1448 node->nn_inode.i_links_count--;
1449 node->nn_flags |= IN_CHANGE;
1455 * Check if source directory is in the path of the target directory.
1456 * Target is supplied locked, source is unlocked.
1457 * The target is always vput before returning.
1460 nandfs_checkpath(struct nandfs_node *src, struct nandfs_node *dest,
1465 struct nandfs_dir_entry dirent;
1468 if (src->nn_ino == dest->nn_ino) {
1472 rootino = NANDFS_ROOT_INO;
1474 if (dest->nn_ino == rootino)
1478 if (vp->v_type != VDIR) {
1483 error = vn_rdwr(UIO_READ, vp, (caddr_t)&dirent,
1484 NANDFS_DIR_REC_LEN(2), (off_t)0, UIO_SYSSPACE,
1485 IO_NODELOCKED | IO_NOMACCHECK, cred, NOCRED,
1489 if (dirent.name_len != 2 ||
1490 dirent.name[0] != '.' ||
1491 dirent.name[1] != '.') {
1495 if (dirent.inode == src->nn_ino) {
1499 if (dirent.inode == rootino)
1502 if ((error = VFS_VGET(vp->v_mount, dirent.inode,
1503 LK_EXCLUSIVE, &vp)) != 0) {
1510 if (error == ENOTDIR)
1511 printf("checkpath: .. not a directory\n");
1518 nandfs_rename(struct vop_rename_args *ap)
1520 struct vnode *tvp = ap->a_tvp;
1521 struct vnode *tdvp = ap->a_tdvp;
1522 struct vnode *fvp = ap->a_fvp;
1523 struct vnode *fdvp = ap->a_fdvp;
1524 struct componentname *tcnp = ap->a_tcnp;
1525 struct componentname *fcnp = ap->a_fcnp;
1526 int doingdirectory = 0, oldparent = 0, newparent = 0;
1529 struct nandfs_node *fdnode, *fnode, *fnode1;
1530 struct nandfs_node *tdnode = VTON(tdvp);
1531 struct nandfs_node *tnode;
1533 uint32_t tdflags, fflags, fdflags;
1536 DPRINTF(VNCALL, ("%s: fdvp:%p fvp:%p tdvp:%p tdp:%p\n", __func__, fdvp,
1540 * Check for cross-device rename.
1542 if ((fvp->v_mount != tdvp->v_mount) ||
1543 (tvp && (fvp->v_mount != tvp->v_mount))) {
1557 tdflags = tdnode->nn_inode.i_flags;
1559 ((VTON(tvp)->nn_inode.i_flags & (NOUNLINK | IMMUTABLE | APPEND)) ||
1560 (tdflags & APPEND))) {
1566 * Renaming a file to itself has no effect. The upper layers should
1567 * not call us in that case. Temporarily just warn if they do.
1570 printf("nandfs_rename: fvp == tvp (can't happen)\n");
1575 if ((error = vn_lock(fvp, LK_EXCLUSIVE)) != 0)
1578 fdnode = VTON(fdvp);
1581 if (fnode->nn_inode.i_links_count >= LINK_MAX) {
1587 fflags = fnode->nn_inode.i_flags;
1588 fdflags = fdnode->nn_inode.i_flags;
1590 if ((fflags & (NOUNLINK | IMMUTABLE | APPEND)) ||
1591 (fdflags & APPEND)) {
1597 mode = fnode->nn_inode.i_mode;
1598 if ((mode & S_IFMT) == S_IFDIR) {
1600 * Avoid ".", "..", and aliases of "." for obvious reasons.
1603 if ((fcnp->cn_namelen == 1 && fcnp->cn_nameptr[0] == '.') ||
1605 ((fcnp->cn_flags | tcnp->cn_flags) & ISDOTDOT) ||
1606 (fnode->nn_flags & IN_RENAME)) {
1611 fnode->nn_flags |= IN_RENAME;
1613 DPRINTF(VNCALL, ("%s: doingdirectory dvp %p\n", __func__,
1615 oldparent = fdnode->nn_ino;
1625 * Bump link count on fvp while we are moving stuff around. If we
1626 * crash before completing the work, the link count may be wrong
1629 fnode->nn_inode.i_links_count++;
1631 /* Check for in path moving XXX */
1632 error = VOP_ACCESS(fvp, VWRITE, tcnp->cn_cred, tcnp->cn_thread);
1634 if (oldparent != tdnode->nn_ino)
1635 newparent = tdnode->nn_ino;
1636 if (doingdirectory && newparent) {
1637 if (error) /* write access check above */
1642 error = nandfs_checkpath(fnode, tdnode, tcnp->cn_cred);
1647 error = relookup(tdvp, &tvp, tcnp);
1651 tdnode = VTON(tdvp);
1658 * If the target doesn't exist, link the target to the source and
1659 * unlink the source. Otherwise, rewrite the target directory to
1660 * reference the source and remove the original entry.
1665 * Account for ".." in new directory.
1667 if (doingdirectory && fdvp != tdvp)
1668 tdnode->nn_inode.i_links_count++;
1670 DPRINTF(VNCALL, ("%s: new entry in dvp:%p\n", __func__, tdvp));
1672 * Add name in new directory.
1674 error = nandfs_add_dirent(tdvp, fnode->nn_ino, tcnp->cn_nameptr,
1675 tcnp->cn_namelen, IFTODT(fnode->nn_inode.i_mode));
1677 if (doingdirectory && fdvp != tdvp)
1678 tdnode->nn_inode.i_links_count--;
1685 * If the parent directory is "sticky", then the user must
1686 * own the parent directory, or the destination of the rename,
1687 * otherwise the destination may not be changed (except by
1688 * root). This implements append-only directories.
1690 if ((tdnode->nn_inode.i_mode & S_ISTXT) &&
1691 tcnp->cn_cred->cr_uid != 0 &&
1692 tcnp->cn_cred->cr_uid != tdnode->nn_inode.i_uid &&
1693 tnode->nn_inode.i_uid != tcnp->cn_cred->cr_uid) {
1698 * Target must be empty if a directory and have no links
1699 * to it. Also, ensure source and target are compatible
1700 * (both directories, or both not directories).
1702 mode = tnode->nn_inode.i_mode;
1703 if ((mode & S_IFMT) == S_IFDIR) {
1704 if (!nandfs_dirempty(tvp, tdnode->nn_ino,
1709 if (!doingdirectory) {
1714 * Update name cache since directory is going away.
1717 } else if (doingdirectory) {
1722 DPRINTF(VNCALL, ("%s: update entry dvp:%p\n", __func__, tdvp));
1724 * Change name tcnp in tdvp to point at fvp.
1726 error = nandfs_update_dirent(tdvp, fnode, tnode);
1730 if (doingdirectory && !newparent)
1731 tdnode->nn_inode.i_links_count--;
1735 tnode->nn_inode.i_links_count--;
1741 * Unlink the source.
1743 fcnp->cn_flags &= ~MODMASK;
1744 fcnp->cn_flags |= LOCKPARENT | LOCKLEAF;
1746 error = relookup(fdvp, &fvp, fcnp);
1751 fdnode = VTON(fdvp);
1754 * From name has disappeared.
1757 panic("nandfs_rename: lost dir entry");
1762 DPRINTF(VNCALL, ("%s: unlink source fnode:%p\n", __func__, fnode));
1765 * Ensure that the directory entry still exists and has not
1766 * changed while the new name has been entered. If the source is
1767 * a file then the entry may have been unlinked or renamed. In
1768 * either case there is no further work to be done. If the source
1769 * is a directory then it cannot have been rmdir'ed; its link
1770 * count of three would cause a rmdir to fail with ENOTEMPTY.
1771 * The IN_RENAME flag ensures that it cannot be moved by another
1774 if (fnode != fnode1) {
1776 panic("nandfs: lost dir entry");
1779 * If the source is a directory with a
1780 * new parent, the link count of the old
1781 * parent directory must be decremented
1782 * and ".." set to point to the new parent.
1784 if (doingdirectory && newparent) {
1785 DPRINTF(VNCALL, ("%s: new parent %#jx -> %#jx\n",
1786 __func__, (uintmax_t) oldparent,
1787 (uintmax_t) newparent));
1788 error = nandfs_update_parent_dir(fvp, newparent);
1790 fdnode->nn_inode.i_links_count--;
1791 fdnode->nn_flags |= IN_CHANGE;
1794 error = nandfs_remove_dirent(fdvp, fnode, fcnp);
1796 fnode->nn_inode.i_links_count--;
1797 fnode->nn_flags |= IN_CHANGE;
1799 fnode->nn_flags &= ~IN_RENAME;
1809 DPRINTF(VNCALL, ("%s: error:%d\n", __func__, error));
1815 fnode->nn_flags &= ~IN_RENAME;
1816 if (vn_lock(fvp, LK_EXCLUSIVE) == 0) {
1817 fnode->nn_inode.i_links_count--;
1818 fnode->nn_flags |= IN_CHANGE;
1819 fnode->nn_flags &= ~IN_RENAME;
1827 nandfs_mkdir(struct vop_mkdir_args *ap)
1829 struct vnode *dvp = ap->a_dvp;
1830 struct vnode **vpp = ap->a_vpp;
1831 struct componentname *cnp = ap->a_cnp;
1832 struct nandfs_node *dir_node = VTON(dvp);
1833 struct nandfs_inode *dir_inode = &dir_node->nn_inode;
1834 struct nandfs_node *node;
1835 struct nandfsmount *nmp = dir_node->nn_nmp;
1836 uint16_t mode = MAKEIMODE(ap->a_vap->va_type, ap->a_vap->va_mode);
1839 DPRINTF(VNCALL, ("%s: dvp %p\n", __func__, dvp));
1841 if (nandfs_fs_full(dir_node->nn_nandfsdev))
1844 if (dir_inode->i_links_count >= LINK_MAX)
1847 error = nandfs_node_create(nmp, &node, mode);
1851 node->nn_inode.i_gid = dir_node->nn_inode.i_gid;
1852 node->nn_inode.i_uid = cnp->cn_cred->cr_uid;
1856 error = nandfs_add_dirent(dvp, node->nn_ino, cnp->cn_nameptr,
1857 cnp->cn_namelen, IFTODT(mode));
1863 dir_node->nn_inode.i_links_count++;
1864 dir_node->nn_flags |= IN_CHANGE;
1866 error = nandfs_init_dir(NTOV(node), node->nn_ino, dir_node->nn_ino);
1872 DPRINTF(VNCALL, ("created dir vp %p nandnode %p ino %jx\n", *vpp, node,
1873 (uintmax_t)node->nn_ino));
1878 nandfs_mknod(struct vop_mknod_args *ap)
1880 struct vnode *dvp = ap->a_dvp;
1881 struct vnode **vpp = ap->a_vpp;
1882 struct vattr *vap = ap->a_vap;
1883 uint16_t mode = MAKEIMODE(vap->va_type, vap->va_mode);
1884 struct componentname *cnp = ap->a_cnp;
1885 struct nandfs_node *dir_node = VTON(dvp);
1886 struct nandfsmount *nmp = dir_node->nn_nmp;
1887 struct nandfs_node *node;
1890 if (nandfs_fs_full(dir_node->nn_nandfsdev))
1893 error = nandfs_node_create(nmp, &node, mode);
1896 node->nn_inode.i_gid = dir_node->nn_inode.i_gid;
1897 node->nn_inode.i_uid = cnp->cn_cred->cr_uid;
1898 if (vap->va_rdev != VNOVAL)
1899 node->nn_inode.i_special = vap->va_rdev;
1903 if (nandfs_add_dirent(dvp, node->nn_ino, cnp->cn_nameptr,
1904 cnp->cn_namelen, IFTODT(mode))) {
1909 node->nn_flags |= IN_ACCESS | IN_CHANGE | IN_UPDATE;
1915 nandfs_symlink(struct vop_symlink_args *ap)
1917 struct vnode **vpp = ap->a_vpp;
1918 struct vnode *dvp = ap->a_dvp;
1919 uint16_t mode = MAKEIMODE(ap->a_vap->va_type, ap->a_vap->va_mode);
1920 struct componentname *cnp = ap->a_cnp;
1921 struct nandfs_node *dir_node = VTON(dvp);
1922 struct nandfsmount *nmp = dir_node->nn_nmp;
1923 struct nandfs_node *node;
1926 if (nandfs_fs_full(dir_node->nn_nandfsdev))
1929 error = nandfs_node_create(nmp, &node, S_IFLNK | mode);
1932 node->nn_inode.i_gid = dir_node->nn_inode.i_gid;
1933 node->nn_inode.i_uid = cnp->cn_cred->cr_uid;
1937 if (nandfs_add_dirent(dvp, node->nn_ino, cnp->cn_nameptr,
1938 cnp->cn_namelen, IFTODT(mode))) {
1944 len = strlen(ap->a_target);
1945 error = vn_rdwr(UIO_WRITE, *vpp, ap->a_target, len, (off_t)0,
1946 UIO_SYSSPACE, IO_NODELOCKED | IO_NOMACCHECK,
1947 cnp->cn_cred, NOCRED, NULL, NULL);
1955 nandfs_readlink(struct vop_readlink_args *ap)
1957 struct vnode *vp = ap->a_vp;
1959 return (VOP_READ(vp, ap->a_uio, 0, ap->a_cred));
1963 nandfs_rmdir(struct vop_rmdir_args *ap)
1965 struct vnode *vp = ap->a_vp;
1966 struct vnode *dvp = ap->a_dvp;
1967 struct componentname *cnp = ap->a_cnp;
1968 struct nandfs_node *node, *dnode;
1969 uint32_t dflag, flag;
1975 /* Files marked as immutable or append-only cannot be deleted. */
1976 if ((node->nn_inode.i_flags & (IMMUTABLE | APPEND | NOUNLINK)) ||
1977 (dnode->nn_inode.i_flags & APPEND))
1980 DPRINTF(VNCALL, ("%s: dvp %p vp %p nandnode %p ino %#jx\n", __func__,
1981 dvp, vp, node, (uintmax_t)node->nn_ino));
1983 if (node->nn_inode.i_links_count < 2)
1986 if (!nandfs_dirempty(vp, dnode->nn_ino, cnp->cn_cred))
1989 /* Files marked as immutable or append-only cannot be deleted. */
1990 dflag = dnode->nn_inode.i_flags;
1991 flag = node->nn_inode.i_flags;
1992 if ((dflag & APPEND) ||
1993 (flag & (NOUNLINK | IMMUTABLE | APPEND))) {
1997 if (vp->v_mountedhere != 0)
2000 nandfs_remove_dirent(dvp, node, cnp);
2001 dnode->nn_inode.i_links_count -= 1;
2002 dnode->nn_flags |= IN_CHANGE;
2006 error = nandfs_truncate(vp, (uint64_t)0);
2010 node->nn_inode.i_links_count -= 2;
2011 node->nn_flags |= IN_CHANGE;
2019 nandfs_fsync(struct vop_fsync_args *ap)
2021 struct vnode *vp = ap->a_vp;
2022 struct nandfs_node *node = VTON(vp);
2025 DPRINTF(VNCALL, ("%s: vp %p nandnode %p ino %#jx\n", __func__, vp,
2026 node, (uintmax_t)node->nn_ino));
2029 * Start syncing vnode only if inode was modified or
2030 * there are some dirty buffers
2032 if (VTON(vp)->nn_flags & IN_MODIFIED ||
2033 vp->v_bufobj.bo_dirty.bv_cnt) {
2034 locked = VOP_ISLOCKED(vp);
2036 nandfs_wakeup_wait_sync(node->nn_nandfsdev, SYNCER_FSYNC);
2037 VOP_LOCK(vp, locked | LK_RETRY);
2044 nandfs_bmap(struct vop_bmap_args *ap)
2046 struct vnode *vp = ap->a_vp;
2047 struct nandfs_node *nnode = VTON(vp);
2048 struct nandfs_device *nandfsdev = nnode->nn_nandfsdev;
2049 nandfs_daddr_t l2vmap, v2pmap;
2051 int blk2dev = nandfsdev->nd_blocksize / DEV_BSIZE;
2053 DPRINTF(VNCALL, ("%s: vp %p nandnode %p ino %#jx\n", __func__, vp,
2054 nnode, (uintmax_t)nnode->nn_ino));
2056 if (ap->a_bop != NULL)
2057 *ap->a_bop = &nandfsdev->nd_devvp->v_bufobj;
2058 if (ap->a_bnp == NULL)
2060 if (ap->a_runp != NULL)
2062 if (ap->a_runb != NULL)
2066 * Translate all the block sectors into a series of buffers to read
2067 * asynchronously from the nandfs device. Note that this lookup may
2068 * induce readin's too.
2071 /* Get virtual block numbers for the vnode's buffer span */
2072 error = nandfs_bmap_lookup(nnode, ap->a_bn, &l2vmap);
2076 /* Translate virtual block numbers to physical block numbers */
2077 error = nandfs_vtop(nnode, l2vmap, &v2pmap);
2081 /* Note virtual block 0 marks not mapped */
2085 *ap->a_bnp = v2pmap * blk2dev; /* in DEV_BSIZE */
2087 DPRINTF(VNCALL, ("%s: vp %p nandnode %p ino %#jx lblk %jx -> blk %jx\n",
2088 __func__, vp, nnode, (uintmax_t)nnode->nn_ino, (uintmax_t)ap->a_bn,
2089 (uintmax_t)*ap->a_bnp ));
2095 nandfs_force_syncer(struct nandfsmount *nmp)
2098 nmp->nm_flags |= NANDFS_FORCE_SYNCER;
2099 nandfs_wakeup_wait_sync(nmp->nm_nandfsdev, SYNCER_FFORCE);
2103 nandfs_ioctl(struct vop_ioctl_args *ap)
2105 struct vnode *vp = ap->a_vp;
2106 u_long command = ap->a_command;
2107 caddr_t data = ap->a_data;
2108 struct nandfs_node *node = VTON(vp);
2109 struct nandfs_device *nandfsdev = node->nn_nandfsdev;
2110 struct nandfsmount *nmp = node->nn_nmp;
2111 uint64_t *tab, *cno;
2112 struct nandfs_seg_stat *nss;
2113 struct nandfs_cpmode *ncpm;
2114 struct nandfs_argv *nargv;
2115 struct nandfs_cpstat *ncp;
2118 DPRINTF(VNCALL, ("%s: %x\n", __func__, (uint32_t)command));
2120 error = priv_check(ap->a_td, PRIV_VFS_MOUNT);
2124 if (nmp->nm_ronly) {
2126 case NANDFS_IOCTL_GET_FSINFO:
2127 case NANDFS_IOCTL_GET_SUSTAT:
2128 case NANDFS_IOCTL_GET_CPINFO:
2129 case NANDFS_IOCTL_GET_CPSTAT:
2130 case NANDFS_IOCTL_GET_SUINFO:
2131 case NANDFS_IOCTL_GET_VINFO:
2132 case NANDFS_IOCTL_GET_BDESCS:
2140 case NANDFS_IOCTL_GET_FSINFO:
2141 error = nandfs_get_fsinfo(nmp, (struct nandfs_fsinfo *)data);
2143 case NANDFS_IOCTL_GET_SUSTAT:
2144 nss = (struct nandfs_seg_stat *)data;
2145 error = nandfs_get_seg_stat(nandfsdev, nss);
2147 case NANDFS_IOCTL_CHANGE_CPMODE:
2148 ncpm = (struct nandfs_cpmode *)data;
2149 error = nandfs_chng_cpmode(nandfsdev->nd_cp_node, ncpm);
2150 nandfs_force_syncer(nmp);
2152 case NANDFS_IOCTL_GET_CPINFO:
2153 nargv = (struct nandfs_argv *)data;
2154 error = nandfs_get_cpinfo_ioctl(nandfsdev->nd_cp_node, nargv);
2156 case NANDFS_IOCTL_DELETE_CP:
2157 tab = (uint64_t *)data;
2158 error = nandfs_delete_cp(nandfsdev->nd_cp_node, tab[0], tab[1]);
2159 nandfs_force_syncer(nmp);
2161 case NANDFS_IOCTL_GET_CPSTAT:
2162 ncp = (struct nandfs_cpstat *)data;
2163 error = nandfs_get_cpstat(nandfsdev->nd_cp_node, ncp);
2165 case NANDFS_IOCTL_GET_SUINFO:
2166 nargv = (struct nandfs_argv *)data;
2167 error = nandfs_get_segment_info_ioctl(nandfsdev, nargv);
2169 case NANDFS_IOCTL_GET_VINFO:
2170 nargv = (struct nandfs_argv *)data;
2171 error = nandfs_get_dat_vinfo_ioctl(nandfsdev, nargv);
2173 case NANDFS_IOCTL_GET_BDESCS:
2174 nargv = (struct nandfs_argv *)data;
2175 error = nandfs_get_dat_bdescs_ioctl(nandfsdev, nargv);
2177 case NANDFS_IOCTL_SYNC:
2178 cno = (uint64_t *)data;
2179 nandfs_force_syncer(nmp);
2180 *cno = nandfsdev->nd_last_cno;
2183 case NANDFS_IOCTL_MAKE_SNAP:
2184 cno = (uint64_t *)data;
2185 error = nandfs_make_snap(nandfsdev, cno);
2186 nandfs_force_syncer(nmp);
2188 case NANDFS_IOCTL_DELETE_SNAP:
2189 cno = (uint64_t *)data;
2190 error = nandfs_delete_snap(nandfsdev, *cno);
2191 nandfs_force_syncer(nmp);
2202 * Whiteout vnode call
2205 nandfs_whiteout(struct vop_whiteout_args *ap)
2207 struct vnode *dvp = ap->a_dvp;
2208 struct componentname *cnp = ap->a_cnp;
2211 switch (ap->a_flags) {
2215 /* Create a new directory whiteout */
2217 if ((cnp->cn_flags & SAVENAME) == 0)
2218 panic("ufs_whiteout: missing name");
2220 error = nandfs_add_dirent(dvp, NANDFS_WHT_INO, cnp->cn_nameptr,
2221 cnp->cn_namelen, DT_WHT);
2225 /* Remove an existing directory whiteout */
2226 cnp->cn_flags &= ~DOWHITEOUT;
2227 error = nandfs_remove_dirent(dvp, NULL, cnp);
2230 panic("nandf_whiteout: unknown op: %d", ap->a_flags);
2237 nandfs_pathconf(struct vop_pathconf_args *ap)
2242 switch (ap->a_name) {
2244 *ap->a_retval = LINK_MAX;
2247 *ap->a_retval = NAME_MAX;
2250 *ap->a_retval = PATH_MAX;
2253 *ap->a_retval = PIPE_BUF;
2255 case _PC_CHOWN_RESTRICTED:
2261 case _PC_ACL_EXTENDED:
2264 case _PC_ALLOC_SIZE_MIN:
2265 *ap->a_retval = ap->a_vp->v_mount->mnt_stat.f_bsize;
2267 case _PC_FILESIZEBITS:
2270 case _PC_REC_INCR_XFER_SIZE:
2271 *ap->a_retval = ap->a_vp->v_mount->mnt_stat.f_iosize;
2273 case _PC_REC_MAX_XFER_SIZE:
2274 *ap->a_retval = -1; /* means ``unlimited'' */
2276 case _PC_REC_MIN_XFER_SIZE:
2277 *ap->a_retval = ap->a_vp->v_mount->mnt_stat.f_iosize;
2287 nandfs_vnlock1(struct vop_lock1_args *ap)
2289 struct vnode *vp = ap->a_vp;
2290 struct nandfs_node *node = VTON(vp);
2291 int error, vi_locked;
2294 * XXX can vnode go away while we are sleeping?
2296 vi_locked = mtx_owned(&vp->v_interlock);
2299 error = NANDFS_WRITELOCKFLAGS(node->nn_nandfsdev,
2300 ap->a_flags & LK_NOWAIT);
2301 if (vi_locked && !error)
2306 error = vop_stdlock(ap);
2308 NANDFS_WRITEUNLOCK(node->nn_nandfsdev);
2316 nandfs_vnunlock(struct vop_unlock_args *ap)
2318 struct vnode *vp = ap->a_vp;
2319 struct nandfs_node *node = VTON(vp);
2322 error = vop_stdunlock(ap);
2326 NANDFS_WRITEUNLOCK(node->nn_nandfsdev);
2332 * Global vfs data structures
2334 struct vop_vector nandfs_vnodeops = {
2335 .vop_default = &default_vnodeops,
2336 .vop_access = nandfs_access,
2337 .vop_advlock = nandfs_advlock,
2338 .vop_bmap = nandfs_bmap,
2339 .vop_close = nandfs_close,
2340 .vop_create = nandfs_create,
2341 .vop_fsync = nandfs_fsync,
2342 .vop_getattr = nandfs_getattr,
2343 .vop_inactive = nandfs_inactive,
2344 .vop_cachedlookup = nandfs_lookup,
2345 .vop_ioctl = nandfs_ioctl,
2346 .vop_link = nandfs_link,
2347 .vop_lookup = vfs_cache_lookup,
2348 .vop_mkdir = nandfs_mkdir,
2349 .vop_mknod = nandfs_mknod,
2350 .vop_open = nandfs_open,
2351 .vop_pathconf = nandfs_pathconf,
2352 .vop_print = nandfs_print,
2353 .vop_read = nandfs_read,
2354 .vop_readdir = nandfs_readdir,
2355 .vop_readlink = nandfs_readlink,
2356 .vop_reclaim = nandfs_reclaim,
2357 .vop_remove = nandfs_remove,
2358 .vop_rename = nandfs_rename,
2359 .vop_rmdir = nandfs_rmdir,
2360 .vop_whiteout = nandfs_whiteout,
2361 .vop_write = nandfs_write,
2362 .vop_setattr = nandfs_setattr,
2363 .vop_strategy = nandfs_strategy,
2364 .vop_symlink = nandfs_symlink,
2365 .vop_lock1 = nandfs_vnlock1,
2366 .vop_unlock = nandfs_vnunlock,
2369 struct vop_vector nandfs_system_vnodeops = {
2370 .vop_default = &default_vnodeops,
2371 .vop_close = nandfs_close,
2372 .vop_inactive = nandfs_inactive,
2373 .vop_reclaim = nandfs_reclaim,
2374 .vop_strategy = nandfs_strategy,
2375 .vop_fsync = nandfs_fsync,
2376 .vop_bmap = nandfs_bmap,
2377 .vop_access = VOP_PANIC,
2378 .vop_advlock = VOP_PANIC,
2379 .vop_create = VOP_PANIC,
2380 .vop_getattr = VOP_PANIC,
2381 .vop_cachedlookup = VOP_PANIC,
2382 .vop_ioctl = VOP_PANIC,
2383 .vop_link = VOP_PANIC,
2384 .vop_lookup = VOP_PANIC,
2385 .vop_mkdir = VOP_PANIC,
2386 .vop_mknod = VOP_PANIC,
2387 .vop_open = VOP_PANIC,
2388 .vop_pathconf = VOP_PANIC,
2389 .vop_print = VOP_PANIC,
2390 .vop_read = VOP_PANIC,
2391 .vop_readdir = VOP_PANIC,
2392 .vop_readlink = VOP_PANIC,
2393 .vop_remove = VOP_PANIC,
2394 .vop_rename = VOP_PANIC,
2395 .vop_rmdir = VOP_PANIC,
2396 .vop_whiteout = VOP_PANIC,
2397 .vop_write = VOP_PANIC,
2398 .vop_setattr = VOP_PANIC,
2399 .vop_symlink = VOP_PANIC,
2403 nandfsfifo_close(struct vop_close_args *ap)
2405 struct vnode *vp = ap->a_vp;
2406 struct nandfs_node *node = VTON(vp);
2408 DPRINTF(VNCALL, ("%s: vp %p node %p\n", __func__, vp, node));
2410 mtx_lock(&vp->v_interlock);
2411 if (vp->v_usecount > 1)
2412 nandfs_itimes_locked(vp);
2413 mtx_unlock(&vp->v_interlock);
2415 return (fifo_specops.vop_close(ap));
2418 struct vop_vector nandfs_fifoops = {
2419 .vop_default = &fifo_specops,
2420 .vop_fsync = VOP_PANIC,
2421 .vop_access = nandfs_access,
2422 .vop_close = nandfsfifo_close,
2423 .vop_getattr = nandfs_getattr,
2424 .vop_inactive = nandfs_inactive,
2425 .vop_print = nandfs_print,
2426 .vop_read = VOP_PANIC,
2427 .vop_reclaim = nandfs_reclaim,
2428 .vop_setattr = nandfs_setattr,
2429 .vop_write = VOP_PANIC,
2430 .vop_lock1 = nandfs_vnlock1,
2431 .vop_unlock = nandfs_vnunlock,
2435 nandfs_vinit(struct vnode *vp, uint64_t ino)
2437 struct nandfs_node *node;
2439 ASSERT_VOP_LOCKED(vp, __func__);
2443 /* Check if we're fetching the root */
2444 if (ino == NANDFS_ROOT_INO)
2445 vp->v_vflag |= VV_ROOT;
2447 if (ino != NANDFS_GC_INO)
2448 vp->v_type = IFTOVT(node->nn_inode.i_mode);
2452 if (vp->v_type == VFIFO)
2453 vp->v_op = &nandfs_fifoops;