by popular request, NTFS support. read only.

The code comes from NetBSD and was ported by Julian Bordet.
ok deraadt@

1 files changed, 1074 insertions, 0 deletions

diff --git a/sys/ntfs/ntfs_vnops.c b/sys/ntfs/ntfs_vnops.c
new file mode 100644
index 00000000000..0e4688531d7
--- /dev/null
+++ b/sys/ntfs/ntfs_vnops.c
@@ -0,0 +1,1074 @@
+/*	$Id: ntfs_vnops.c,v 1.1 2003/05/20 03:03:27 tedu Exp $	*/
+/*	$NetBSD: ntfs_vnops.c,v 1.6 2003/04/10 21:57:26 jdolecek Exp $	*/
+
+/*
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * John Heidemann of the UCLA Ficus project.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	Id: ntfs_vnops.c,v 1.5 1999/05/12 09:43:06 semenu Exp
+ *
+ */
+
+#include <sys/cdefs.h>
+#ifdef __KERNEL_RCSID
+__KERNEL_RCSID(0, "$NetBSD: ntfs_vnops.c,v 1.6 2003/04/10 21:57:26 jdolecek Exp $");
+#endif
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/time.h>
+#include <sys/stat.h>
+#include <sys/vnode.h>
+#include <sys/mount.h>
+#include <sys/namei.h>
+#include <sys/malloc.h>
+#include <sys/buf.h>
+#include <sys/dirent.h>
+
+#if !defined(__NetBSD__) && !defined(__OpenBSD__)
+#include <vm/vm.h>
+#endif
+
+#if defined(__FreeBSD__)
+#include <vm/vnode_pager.h>
+#endif
+
+#include <sys/sysctl.h>
+
+
+/*#define NTFS_DEBUG 1*/
+#if defined(__FreeBSD__) || defined(__NetBSD__)
+#include <fs/ntfs/ntfs.h>
+#include <fs/ntfs/ntfs_inode.h>
+#include <fs/ntfs/ntfs_subr.h>
+#include <miscfs/genfs/genfs.h>
+#else
+#include <ntfs/ntfs.h>
+#include <ntfs/ntfs_inode.h>
+#include <ntfs/ntfs_subr.h>
+#endif
+
+#include <miscfs/specfs/specdev.h>
+
+#include <sys/unistd.h> /* for pathconf(2) constants */
+
+static int	ntfs_bypass (struct vop_generic_args *ap);
+static int	ntfs_read (struct vop_read_args *);
+static int	ntfs_write (struct vop_write_args *ap);
+static int	ntfs_getattr (struct vop_getattr_args *ap);
+static int	ntfs_inactive (struct vop_inactive_args *ap);
+static int	ntfs_print (struct vop_print_args *ap);
+static int	ntfs_reclaim (struct vop_reclaim_args *ap);
+static int	ntfs_strategy (struct vop_strategy_args *ap);
+static int	ntfs_access (struct vop_access_args *ap);
+static int	ntfs_open (struct vop_open_args *ap);
+static int	ntfs_close (struct vop_close_args *ap);
+static int	ntfs_readdir (struct vop_readdir_args *ap);
+static int	ntfs_lookup (struct vop_lookup_args *ap);
+static int	ntfs_bmap (struct vop_bmap_args *ap);
+#if defined(__FreeBSD__)
+static int	ntfs_getpages (struct vop_getpages_args *ap);
+static int	ntfs_putpages (struct vop_putpages_args *);
+#endif
+#if defined(__FreeBSD__) || defined(__OpenBSD__)
+static int	ntfs_fsync (struct vop_fsync_args *ap);
+#endif
+static int	ntfs_pathconf (void *);
+
+int	ntfs_prtactive = 1;	/* 1 => print out reclaim of active vnodes */
+
+#if defined(__FreeBSD__)
+int
+ntfs_getpages(ap)
+	struct vop_getpages_args *ap;
+{
+	return vnode_pager_generic_getpages(ap->a_vp, ap->a_m, ap->a_count,
+		ap->a_reqpage);
+}
+
+int
+ntfs_putpages(ap)
+	struct vop_putpages_args *ap;
+{
+	return vnode_pager_generic_putpages(ap->a_vp, ap->a_m, ap->a_count,
+		ap->a_sync, ap->a_rtvals);
+}
+#endif
+
+/*
+ * This is a noop, simply returning what one has been given.
+ */
+int
+ntfs_bmap(ap)
+	struct vop_bmap_args /* {
+		struct vnode *a_vp;
+		daddr_t  a_bn;
+		struct vnode **a_vpp;
+		daddr_t *a_bnp;
+		int *a_runp;
+		int *a_runb;
+	} */ *ap;
+{
+	dprintf(("ntfs_bmap: vn: %p, blk: %d\n", ap->a_vp,(u_int32_t)ap->a_bn));
+	if (ap->a_vpp != NULL)
+		*ap->a_vpp = ap->a_vp;
+	if (ap->a_bnp != NULL)
+		*ap->a_bnp = ap->a_bn;
+	if (ap->a_runp != NULL)
+		*ap->a_runp = 0;
+#if !defined(__NetBSD__) && !defined(__OpenBSD__)
+	if (ap->a_runb != NULL)
+		*ap->a_runb = 0;
+#endif
+	return (0);
+}
+
+static int
+ntfs_read(ap)
+	struct vop_read_args /* {
+		struct vnode *a_vp;
+		struct uio *a_uio;
+		int a_ioflag;
+		struct ucred *a_cred;
+	} */ *ap;
+{
+	struct vnode *vp = ap->a_vp;
+	struct fnode *fp = VTOF(vp);
+	struct ntnode *ip = FTONT(fp);
+	struct uio *uio = ap->a_uio;
+	struct ntfsmount *ntmp = ip->i_mp;
+	u_int64_t toread;
+	int error;
+
+	dprintf(("ntfs_read: ino: %d, off: %d resid: %d, segflg: %d\n",ip->i_number,(u_int32_t)uio->uio_offset,uio->uio_resid,uio->uio_segflg));
+
+	dprintf(("ntfs_read: filesize: %d",(u_int32_t)fp->f_size));
+
+	/* don't allow reading after end of file */
+	if (uio->uio_offset > fp->f_size)
+		toread = 0;
+	else
+		toread = min( uio->uio_resid, fp->f_size - uio->uio_offset );
+
+	dprintf((", toread: %d\n",(u_int32_t)toread));
+
+	if (toread == 0)
+		return (0);
+
+	error = ntfs_readattr(ntmp, ip, fp->f_attrtype,
+		fp->f_attrname, uio->uio_offset, toread, NULL, uio);
+	if (error) {
+		printf("ntfs_read: ntfs_readattr failed: %d\n",error);
+		return (error);
+	}
+
+	return (0);
+}
+
+static int
+ntfs_bypass(ap)
+	struct vop_generic_args /* {
+		struct vnodeop_desc *a_desc;
+		<other random data follows, presumably>
+	} */ *ap;
+{
+	int error = ENOTTY;
+	dprintf(("ntfs_bypass: %s\n", ap->a_desc->vdesc_name));
+	return (error);
+}
+
+
+static int
+ntfs_getattr(ap)
+	struct vop_getattr_args /* {
+		struct vnode *a_vp;
+		struct vattr *a_vap;
+		struct ucred *a_cred;
+		struct proc *a_p;
+	} */ *ap;
+{
+	struct vnode *vp = ap->a_vp;
+	struct fnode *fp = VTOF(vp);
+	struct ntnode *ip = FTONT(fp);
+	struct vattr *vap = ap->a_vap;
+
+	dprintf(("ntfs_getattr: %d, flags: %d\n",ip->i_number,ip->i_flag));
+
+#if defined(__FreeBSD__)
+	vap->va_fsid = dev2udev(ip->i_dev);
+#else /* NetBSD */
+	vap->va_fsid = ip->i_dev;
+#endif
+	vap->va_fileid = ip->i_number;
+	vap->va_mode = ip->i_mp->ntm_mode;
+	vap->va_nlink = ip->i_nlink;
+	vap->va_uid = ip->i_mp->ntm_uid;
+	vap->va_gid = ip->i_mp->ntm_gid;
+	vap->va_rdev = 0;				/* XXX UNODEV ? */
+	vap->va_size = fp->f_size;
+	vap->va_bytes = fp->f_allocated;
+	vap->va_atime = ntfs_nttimetounix(fp->f_times.t_access);
+	vap->va_mtime = ntfs_nttimetounix(fp->f_times.t_write);
+	vap->va_ctime = ntfs_nttimetounix(fp->f_times.t_create);
+	vap->va_flags = ip->i_flag;
+	vap->va_gen = 0;
+	vap->va_blocksize = ip->i_mp->ntm_spc * ip->i_mp->ntm_bps;
+	vap->va_type = vp->v_type;
+	vap->va_filerev = 0;
+	return (0);
+}
+
+
+/*
+ * Last reference to an ntnode.  If necessary, write or delete it.
+ */
+int
+ntfs_inactive(ap)
+	struct vop_inactive_args /* {
+		struct vnode *a_vp;
+		struct proc *a_p;
+	} */ *ap;
+{
+	struct vnode *vp = ap->a_vp;
+#ifdef __OpenBSD__
+	struct proc *p = ap->a_p;
+#endif
+#ifdef NTFS_DEBUG
+	struct ntnode *ip = VTONT(vp);
+#endif
+
+	dprintf(("ntfs_inactive: vnode: %p, ntnode: %d\n", vp, ip->i_number));
+
+	if (ntfs_prtactive && vp->v_usecount != 0)
+		vprint("ntfs_inactive: pushing active", vp);
+
+	VOP__UNLOCK(vp, 0, p);
+
+	/* XXX since we don't support any filesystem changes
+	 * right now, nothing more needs to be done
+	 */
+	return (0);
+}
+
+/*
+ * Reclaim an fnode/ntnode so that it can be used for other purposes.
+ */
+int
+ntfs_reclaim(ap)
+	struct vop_reclaim_args /* {
+		struct vnode *a_vp;
+		struct proc *a_p;
+	} */ *ap;
+{
+	struct vnode *vp = ap->a_vp;
+	struct fnode *fp = VTOF(vp);
+	struct ntnode *ip = FTONT(fp);
+#ifdef __OpenBSD__
+	struct proc *p = ap->a_p;
+#endif
+	int error;
+
+	dprintf(("ntfs_reclaim: vnode: %p, ntnode: %d\n", vp, ip->i_number));
+
+	if (ntfs_prtactive && vp->v_usecount != 0)
+		vprint("ntfs_reclaim: pushing active", vp);
+
+#ifndef __OpenBSD__
+	if ((error = ntfs_ntget(ip)) != 0)
+#else
+	if ((error = ntfs_ntget(ip, p)) != 0)
+#endif
+		return (error);
+	
+	/* Purge old data structures associated with the inode. */
+	cache_purge(vp);
+	if (ip->i_devvp) {
+		vrele(ip->i_devvp);
+		ip->i_devvp = NULL;
+	}
+
+	ntfs_frele(fp);
+#ifndef __OpenBSD__
+	ntfs_ntput(ip);
+#else
+	ntfs_ntput(ip, p);
+#endif
+	vp->v_data = NULL;
+
+	return (0);
+}
+
+static int
+ntfs_print(ap)
+	struct vop_print_args /* {
+		struct vnode *a_vp;
+	} */ *ap;
+{
+	struct ntnode *ip = VTONT(ap->a_vp);
+
+	printf("tag VT_NTFS, ino %u, flag %#x, usecount %d, nlink %ld\n",
+	    ip->i_number, ip->i_flag, ip->i_usecount, ip->i_nlink);
+	printf("       ");
+	lockmgr_printinfo(ap->a_vp->v_vnlock);
+	printf("\n");
+	return (0);
+}
+
+/*
+ * Calculate the logical to physical mapping if not done already,
+ * then call the device strategy routine.
+ */
+int
+ntfs_strategy(ap)
+	struct vop_strategy_args /* {
+		struct buf *a_bp;
+	} */ *ap;
+{
+	struct buf *bp = ap->a_bp;
+	struct vnode *vp = bp->b_vp;
+	struct fnode *fp = VTOF(vp);
+	struct ntnode *ip = FTONT(fp);
+	struct ntfsmount *ntmp = ip->i_mp;
+	int error;
+
+#ifdef __FreeBSD__
+	dprintf(("ntfs_strategy: offset: %d, blkno: %d, lblkno: %d\n",
+		(u_int32_t)bp->b_offset,(u_int32_t)bp->b_blkno,
+		(u_int32_t)bp->b_lblkno));
+#else
+	dprintf(("ntfs_strategy: blkno: %d, lblkno: %d\n",
+		(u_int32_t)bp->b_blkno,
+		(u_int32_t)bp->b_lblkno));
+#endif
+
+	dprintf(("strategy: bcount: %d flags: 0x%lx\n", 
+		(u_int32_t)bp->b_bcount,bp->b_flags));
+
+	if (bp->b_flags & B_READ) {
+		u_int32_t toread;
+
+		if (ntfs_cntob(bp->b_blkno) >= fp->f_size) {
+			clrbuf(bp);
+			error = 0;
+		} else {
+			toread = min(bp->b_bcount,
+				 fp->f_size-ntfs_cntob(bp->b_blkno));
+			dprintf(("ntfs_strategy: toread: %d, fsize: %d\n",
+				toread,(u_int32_t)fp->f_size));
+
+			error = ntfs_readattr(ntmp, ip, fp->f_attrtype,
+				fp->f_attrname, ntfs_cntob(bp->b_blkno),
+				toread, bp->b_data, NULL);
+
+			if (error) {
+				printf("ntfs_strategy: ntfs_readattr failed\n");
+				bp->b_error = error;
+				bp->b_flags |= B_ERROR;
+			}
+
+			bzero(bp->b_data + toread, bp->b_bcount - toread);
+		}
+	} else {
+		size_t tmp;
+		u_int32_t towrite;
+
+		if (ntfs_cntob(bp->b_blkno) + bp->b_bcount >= fp->f_size) {
+			printf("ntfs_strategy: CAN'T EXTEND FILE\n");
+			bp->b_error = error = EFBIG;
+			bp->b_flags |= B_ERROR;
+		} else {
+			towrite = min(bp->b_bcount,
+				fp->f_size-ntfs_cntob(bp->b_blkno));
+			dprintf(("ntfs_strategy: towrite: %d, fsize: %d\n",
+				towrite,(u_int32_t)fp->f_size));
+
+			error = ntfs_writeattr_plain(ntmp, ip, fp->f_attrtype,	
+				fp->f_attrname, ntfs_cntob(bp->b_blkno),towrite,
+				bp->b_data, &tmp, NULL);
+
+			if (error) {
+				printf("ntfs_strategy: ntfs_writeattr fail\n");
+				bp->b_error = error;
+				bp->b_flags |= B_ERROR;
+			}
+		}
+	}
+	biodone(bp);
+	return (error);
+}
+
+static int
+ntfs_write(ap)
+	struct vop_write_args /* {
+		struct vnode *a_vp;
+		struct uio *a_uio;
+		int  a_ioflag;
+		struct ucred *a_cred;
+	} */ *ap;
+{
+	struct vnode *vp = ap->a_vp;
+	struct fnode *fp = VTOF(vp);
+	struct ntnode *ip = FTONT(fp);
+	struct uio *uio = ap->a_uio;
+	struct ntfsmount *ntmp = ip->i_mp;
+	u_int64_t towrite;
+	size_t written;
+	int error;
+
+	dprintf(("ntfs_write: ino: %d, off: %d resid: %d, segflg: %d\n",ip->i_number,(u_int32_t)uio->uio_offset,uio->uio_resid,uio->uio_segflg));
+	dprintf(("ntfs_write: filesize: %d",(u_int32_t)fp->f_size));
+
+	if (uio->uio_resid + uio->uio_offset > fp->f_size) {
+		printf("ntfs_write: CAN'T WRITE BEYOND END OF FILE\n");
+		return (EFBIG);
+	}
+
+	towrite = min(uio->uio_resid, fp->f_size - uio->uio_offset);
+
+	dprintf((", towrite: %d\n",(u_int32_t)towrite));
+
+	error = ntfs_writeattr_plain(ntmp, ip, fp->f_attrtype,
+		fp->f_attrname, uio->uio_offset, towrite, NULL, &written, uio);
+#ifdef NTFS_DEBUG
+	if (error)
+		printf("ntfs_write: ntfs_writeattr failed: %d\n", error);
+#endif
+
+	return (error);
+}
+
+int
+ntfs_access(ap)
+	struct vop_access_args /* {
+		struct vnode *a_vp;
+		int  a_mode;
+		struct ucred *a_cred;
+		struct proc *a_p;
+	} */ *ap;
+{
+	struct vnode *vp = ap->a_vp;
+	struct ntnode *ip = VTONT(vp);
+	struct ucred *cred = ap->a_cred;
+	mode_t mask, mode = ap->a_mode;
+	gid_t *gp;
+	int i;
+#if defined(__NetBSD__) && defined(QUOTA)
+	int error;
+#endif
+
+	dprintf(("ntfs_access: %d\n",ip->i_number));
+
+	/*
+	 * Disallow write attempts on read-only file systems;
+	 * unless the file is a socket, fifo, or a block or
+	 * character device resident on the file system.
+	 */
+	if (mode & VWRITE) {
+		switch ((int)vp->v_type) {
+		case VDIR:
+		case VLNK:
+		case VREG:
+			if (vp->v_mount->mnt_flag & MNT_RDONLY)
+				return (EROFS);
+#if defined(__NetBSD__) && defined(QUOTA)
+			if (error = getinoquota(ip))
+				return (error);
+#endif
+			break;
+		}
+	}
+
+	/* Otherwise, user id 0 always gets access. */
+	if (cred->cr_uid == 0)
+		return (0);
+
+	mask = 0;
+
+	/* Otherwise, check the owner. */
+	if (cred->cr_uid == ip->i_mp->ntm_uid) {
+		if (mode & VEXEC)
+			mask |= S_IXUSR;
+		if (mode & VREAD)
+			mask |= S_IRUSR;
+		if (mode & VWRITE)
+			mask |= S_IWUSR;
+		return ((ip->i_mp->ntm_mode & mask) == mask ? 0 : EACCES);
+	}
+
+	/* Otherwise, check the groups. */
+	for (i = 0, gp = cred->cr_groups; i < cred->cr_ngroups; i++, gp++)
+		if (ip->i_mp->ntm_gid == *gp) {
+			if (mode & VEXEC)
+				mask |= S_IXGRP;
+			if (mode & VREAD)
+				mask |= S_IRGRP;
+			if (mode & VWRITE)
+				mask |= S_IWGRP;
+			return ((ip->i_mp->ntm_mode&mask) == mask ? 0 : EACCES);
+		}
+
+	/* Otherwise, check everyone else. */
+	if (mode & VEXEC)
+		mask |= S_IXOTH;
+	if (mode & VREAD)
+		mask |= S_IROTH;
+	if (mode & VWRITE)
+		mask |= S_IWOTH;
+	return ((ip->i_mp->ntm_mode & mask) == mask ? 0 : EACCES);
+}
+
+/*
+ * Open called.
+ *
+ * Nothing to do.
+ */
+/* ARGSUSED */
+static int
+ntfs_open(ap)
+	struct vop_open_args /* {
+		struct vnode *a_vp;
+		int  a_mode;
+		struct ucred *a_cred;
+		struct proc *a_p;
+	} */ *ap;
+{
+#if NTFS_DEBUG
+	struct vnode *vp = ap->a_vp;
+	struct ntnode *ip = VTONT(vp);
+
+	printf("ntfs_open: %d\n",ip->i_number);
+#endif
+
+	/*
+	 * Files marked append-only must be opened for appending.
+	 */
+
+	return (0);
+}
+
+/*
+ * Close called.
+ *
+ * Update the times on the inode.
+ */
+/* ARGSUSED */
+static int
+ntfs_close(ap)
+	struct vop_close_args /* {
+		struct vnode *a_vp;
+		int  a_fflag;
+		struct ucred *a_cred;
+		struct proc *a_p;
+	} */ *ap;
+{
+#if NTFS_DEBUG
+	struct vnode *vp = ap->a_vp;
+	struct ntnode *ip = VTONT(vp);
+
+	printf("ntfs_close: %d\n",ip->i_number);
+#endif
+
+	return (0);
+}
+
+int
+ntfs_readdir(ap)
+	struct vop_readdir_args /* {
+		struct vnode *a_vp;
+		struct uio *a_uio;
+		struct ucred *a_cred;
+		int *a_eofflag;
+		int *a_ncookies;
+		u_long **a_cookies;
+	} */ *ap;
+{
+	struct vnode *vp = ap->a_vp;
+	struct fnode *fp = VTOF(vp);
+	struct ntnode *ip = FTONT(fp);
+	struct uio *uio = ap->a_uio;
+	struct ntfsmount *ntmp = ip->i_mp;
+	int i, error = 0;
+	u_int32_t faked = 0, num;
+	int ncookies = 0;
+	struct dirent *cde;
+	off_t off;
+
+	dprintf(("ntfs_readdir %d off: %d resid: %d\n",ip->i_number,(u_int32_t)uio->uio_offset,uio->uio_resid));
+
+	off = uio->uio_offset;
+
+	MALLOC(cde, struct dirent *, sizeof(struct dirent), M_TEMP, M_WAITOK);
+
+	/* Simulate . in every dir except ROOT */
+	if (ip->i_number != NTFS_ROOTINO
+	    && uio->uio_offset < sizeof(struct dirent)) {
+		cde->d_fileno = ip->i_number;
+		cde->d_reclen = sizeof(struct dirent);
+		cde->d_type = DT_DIR;
+		cde->d_namlen = 1;
+		strncpy(cde->d_name, ".", 2);
+		error = uiomove((void *)cde, sizeof(struct dirent), uio);
+		if (error)
+			goto out;
+
+		ncookies++;
+	}
+
+	/* Simulate .. in every dir including ROOT */
+	if (uio->uio_offset < 2 * sizeof(struct dirent)) {
+		cde->d_fileno = NTFS_ROOTINO;	/* XXX */
+		cde->d_reclen = sizeof(struct dirent);
+		cde->d_type = DT_DIR;
+		cde->d_namlen = 2;
+		strncpy(cde->d_name, "..", 3);
+
+		error = uiomove((void *) cde, sizeof(struct dirent), uio);
+		if (error)
+			goto out;
+
+		ncookies++;
+	}
+
+	faked = (ip->i_number == NTFS_ROOTINO) ? 1 : 2;
+	num = uio->uio_offset / sizeof(struct dirent) - faked;
+
+	while (uio->uio_resid >= sizeof(struct dirent)) {
+		struct attr_indexentry *iep;
+		char *fname;
+		size_t remains;
+		int sz;
+
+#ifndef __OpenBSD__
+		error = ntfs_ntreaddir(ntmp, fp, num, &iep);
+#else
+		error = ntfs_ntreaddir(ntmp, fp, num, &iep, uio->uio_procp);
+#endif
+		if (error)
+			goto out;
+
+		if (NULL == iep)
+			break;
+
+		for(; !(iep->ie_flag & NTFS_IEFLAG_LAST) && (uio->uio_resid >= sizeof(struct dirent));
+			iep = NTFS_NEXTREC(iep, struct attr_indexentry *))
+		{
+			if(!ntfs_isnamepermitted(ntmp,iep))
+				continue;
+
+			remains = sizeof(cde->d_name) - 1;
+			fname = cde->d_name;
+			for(i=0; i<iep->ie_fnamelen; i++) {
+				sz = (*ntmp->ntm_wput)(fname, remains,
+						iep->ie_fname[i]);
+				fname += sz;
+				remains -= sz;
+			}
+			*fname = '\0';
+			dprintf(("ntfs_readdir: elem: %d, fname:[%s] type: %d, flag: %d, ",
+				num, cde->d_name, iep->ie_fnametype,
+				iep->ie_flag));
+			cde->d_namlen = fname - (char *) cde->d_name;
+			cde->d_fileno = iep->ie_number;
+			cde->d_type = (iep->ie_fflag & NTFS_FFLAG_DIR) ? DT_DIR : DT_REG;
+			cde->d_reclen = sizeof(struct dirent);
+			dprintf(("%s\n", (cde->d_type == DT_DIR) ? "dir":"reg"));
+
+			error = uiomove((void *)cde, sizeof(struct dirent), uio);
+			if (error)
+				goto out;
+
+			ncookies++;
+			num++;
+		}
+	}
+
+	dprintf(("ntfs_readdir: %d entries (%d bytes) read\n",
+		ncookies,(u_int)(uio->uio_offset - off)));
+	dprintf(("ntfs_readdir: off: %d resid: %d\n",
+		(u_int32_t)uio->uio_offset,uio->uio_resid));
+
+	if (!error && ap->a_ncookies != NULL) {
+		struct dirent* dpStart;
+		struct dirent* dp;
+#if defined(__FreeBSD__) || defined(__OpenBSD__)
+		u_long *cookies;
+		u_long *cookiep;
+#else /* defined(__NetBSD__) */
+		off_t *cookies;
+		off_t *cookiep;
+#endif
+
+		printf("ntfs_readdir: %d cookies\n",ncookies);
+		if (uio->uio_segflg != UIO_SYSSPACE || uio->uio_iovcnt != 1)
+			panic("ntfs_readdir: unexpected uio from NFS server");
+		dpStart = (struct dirent *)
+		     ((caddr_t)uio->uio_iov->iov_base -
+			 (uio->uio_offset - off));
+#if defined(__FreeBSD__)
+		MALLOC(cookies, u_long *, ncookies * sizeof(u_long),
+		       M_TEMP, M_WAITOK);
+#else /* defined(__NetBSD__) */
+		cookies = malloc(ncookies * sizeof(off_t), M_TEMP, M_WAITOK);
+#endif
+		for (dp = dpStart, cookiep = cookies, i=0;
+		     i < ncookies;
+		     dp = (struct dirent *)((caddr_t) dp + dp->d_reclen), i++) {
+			off += dp->d_reclen;
+			*cookiep++ = (u_int) off;
+		}
+		*ap->a_ncookies = ncookies;
+		*ap->a_cookies = cookies;
+	}
+/*
+	if (ap->a_eofflag)
+	    *ap->a_eofflag = VTONT(ap->a_vp)->i_size <= uio->uio_offset;
+*/
+    out:
+	FREE(cde, M_TEMP);
+	return (error);
+}
+
+int
+ntfs_lookup(ap)
+	struct vop_lookup_args /* {
+		struct vnode *a_dvp;
+		struct vnode **a_vpp;
+		struct componentname *a_cnp;
+	} */ *ap;
+{
+	struct vnode *dvp = ap->a_dvp;
+	struct ntnode *dip = VTONT(dvp);
+	struct ntfsmount *ntmp = dip->i_mp;
+	struct componentname *cnp = ap->a_cnp;
+	struct ucred *cred = cnp->cn_cred;
+	int error;
+	int lockparent = cnp->cn_flags & LOCKPARENT;
+#ifdef __OpenBSD__
+	struct proc *p = cnp->cn_proc;
+#endif
+#if NTFS_DEBUG
+	int wantparent = cnp->cn_flags & (LOCKPARENT|WANTPARENT);
+#endif
+	dprintf(("ntfs_lookup: \"%.*s\" (%ld bytes) in %d, lp: %d, wp: %d \n",
+		(int)cnp->cn_namelen, cnp->cn_nameptr, cnp->cn_namelen,
+		dip->i_number, lockparent, wantparent));
+
+	error = VOP_ACCESS(dvp, VEXEC, cred, cnp->cn_proc);
+	if(error)
+		return (error);
+
+	if ((cnp->cn_flags & ISLASTCN) &&
+	    (dvp->v_mount->mnt_flag & MNT_RDONLY) &&
+	    (cnp->cn_nameiop == DELETE || cnp->cn_nameiop == RENAME))
+		return (EROFS);
+
+#if defined(__NetBSD__) || defined(__OpenBSD__)
+	/*
+	 * We now have a segment name to search for, and a directory
+	 * to search.
+	 *
+	 * Before tediously performing a linear scan of the directory,
+	 * check the name cache to see if the directory/name pair
+	 * we are looking for is known already.
+	 */
+	if ((error = cache_lookup(ap->a_dvp, ap->a_vpp, cnp)) >= 0)
+		return (error);
+#endif
+
+	if(cnp->cn_namelen == 1 && cnp->cn_nameptr[0] == '.') {
+		dprintf(("ntfs_lookup: faking . directory in %d\n",
+			dip->i_number));
+
+		VREF(dvp);
+		*ap->a_vpp = dvp;
+		error = 0;
+	} else if (cnp->cn_flags & ISDOTDOT) {
+		struct ntvattr *vap;
+
+		dprintf(("ntfs_lookup: faking .. directory in %d\n",
+			 dip->i_number));
+
+		VOP__UNLOCK(dvp, 0, p);
+		cnp->cn_flags |= PDIRUNLOCK;
+
+		error = ntfs_ntvattrget(ntmp, dip, NTFS_A_NAME, NULL, 0, &vap);
+		if(error)
+			return (error);
+
+		dprintf(("ntfs_lookup: parentdir: %d\n",
+			 vap->va_a_name->n_pnumber));
+		error = VFS_VGET(ntmp->ntm_mountp,
+				 vap->va_a_name->n_pnumber,ap->a_vpp); 
+		ntfs_ntvattrrele(vap);
+		if (error) {
+			if (VN_LOCK(dvp, LK_EXCLUSIVE | LK_RETRY, p) == 0)
+				cnp->cn_flags &= ~PDIRUNLOCK;
+			return (error);
+		}
+
+		if (lockparent && (cnp->cn_flags & ISLASTCN)) {
+			error = VN_LOCK(dvp, LK_EXCLUSIVE, p);
+			if (error) {
+				vput( *(ap->a_vpp) );
+				return (error);
+			}
+			cnp->cn_flags &= ~PDIRUNLOCK;
+		}
+	} else {
+#ifndef __OpenBSD__
+		error = ntfs_ntlookupfile(ntmp, dvp, cnp, ap->a_vpp);
+#else
+		error = ntfs_ntlookupfile(ntmp, dvp, cnp, ap->a_vpp, p);
+#endif
+		if (error) {
+			dprintf(("ntfs_ntlookupfile: returned %d\n", error));
+			return (error);
+		}
+
+		dprintf(("ntfs_lookup: found ino: %d\n", 
+			VTONT(*ap->a_vpp)->i_number));
+
+		if(!lockparent || (cnp->cn_flags & ISLASTCN) == 0) {
+			VOP__UNLOCK(dvp, 0, p);
+			cnp->cn_flags |= PDIRUNLOCK;
+		}
+	}
+
+	if (cnp->cn_flags & MAKEENTRY)
+		cache_enter(dvp, *ap->a_vpp, cnp);
+
+	return (error);
+}
+
+#if defined(__FreeBSD__) || defined(__OpenBSD__)
+/*
+ * Flush the blocks of a file to disk.
+ *
+ * This function is worthless for vnodes that represent directories. Maybe we
+ * could just do a sync if they try an fsync on a directory file.
+ */
+static int
+ntfs_fsync(ap)
+	struct vop_fsync_args /* {
+		struct vnode *a_vp;
+		struct ucred *a_cred;
+		int a_waitfor;
+		off_t offlo;
+		off_t offhi;
+		struct proc *a_p;
+	} */ *ap;
+{
+	return (0);
+}
+#endif
+
+/*
+ * Return POSIX pathconf information applicable to NTFS filesystem
+ */
+static int
+ntfs_pathconf(v)
+	void *v;
+{
+	struct vop_pathconf_args /* {
+		struct vnode *a_vp;
+		int a_name;
+		register_t *a_retval;
+	} */ *ap = v;
+
+	switch (ap->a_name) {
+	case _PC_LINK_MAX:
+		*ap->a_retval = 1;
+		return (0);
+	case _PC_NAME_MAX:
+		*ap->a_retval = NTFS_MAXFILENAME;
+		return (0);
+	case _PC_PATH_MAX:
+		*ap->a_retval = PATH_MAX;
+		return (0);
+	case _PC_CHOWN_RESTRICTED:
+		*ap->a_retval = 1;
+		return (0);
+	case _PC_NO_TRUNC:
+		*ap->a_retval = 0;
+		return (0);
+#ifdef __NetBSD__
+	case _PC_SYNC_IO:
+		*ap->a_retval = 1;
+		return (0);
+	case _PC_FILESIZEBITS:
+		*ap->a_retval = 64;
+		return (0);
+#endif
+	default:
+		return (EINVAL);
+	}
+	/* NOTREACHED */
+}
+
+/*
+ * Global vfs data structures
+ */
+vop_t **ntfs_vnodeop_p;
+#if defined(__FreeBSD__)
+static
+struct vnodeopv_entry_desc ntfs_vnodeop_entries[] = {
+	{ &vop_default_desc, (vop_t *)ntfs_bypass },
+
+	{ &vop_getattr_desc, (vop_t *)ntfs_getattr },
+	{ &vop_inactive_desc, (vop_t *)ntfs_inactive },
+	{ &vop_reclaim_desc, (vop_t *)ntfs_reclaim },
+	{ &vop_print_desc, (vop_t *)ntfs_print },
+	{ &vop_pathconf_desc, ntfs_pathconf },
+
+	{ &vop_islocked_desc, (vop_t *)vop_stdislocked },
+	{ &vop_unlock_desc, (vop_t *)vop_stdunlock },
+	{ &vop_lock_desc, (vop_t *)vop_stdlock },
+	{ &vop_cachedlookup_desc, (vop_t *)ntfs_lookup },
+	{ &vop_lookup_desc, (vop_t *)vfs_cache_lookup },
+
+	{ &vop_access_desc, (vop_t *)ntfs_access },
+	{ &vop_close_desc, (vop_t *)ntfs_close },
+	{ &vop_open_desc, (vop_t *)ntfs_open },
+	{ &vop_readdir_desc, (vop_t *)ntfs_readdir },
+	{ &vop_fsync_desc, (vop_t *)ntfs_fsync },
+
+	{ &vop_bmap_desc, (vop_t *)ntfs_bmap },
+	{ &vop_getpages_desc, (vop_t *) ntfs_getpages },
+	{ &vop_putpages_desc, (vop_t *) ntfs_putpages },
+	{ &vop_strategy_desc, (vop_t *)ntfs_strategy },
+	{ &vop_bwrite_desc, (vop_t *)vop_stdbwrite },
+	{ &vop_read_desc, (vop_t *)ntfs_read },
+	{ &vop_write_desc, (vop_t *)ntfs_write },
+
+	{ NULL, NULL }
+};
+
+static
+struct vnodeopv_desc ntfs_vnodeop_opv_desc =
+	{ &ntfs_vnodeop_p, ntfs_vnodeop_entries };
+
+VNODEOP_SET(ntfs_vnodeop_opv_desc);
+
+#elif defined(__OpenBSD__)
+static
+struct vnodeopv_entry_desc ntfs_vnodeop_entries[] = {
+	{ &vop_default_desc, (vop_t *)ntfs_bypass },
+
+	{ &vop_getattr_desc, (vop_t *)ntfs_getattr },
+	{ &vop_inactive_desc, (vop_t *)ntfs_inactive },
+	{ &vop_reclaim_desc, (vop_t *)ntfs_reclaim },
+	{ &vop_print_desc, (vop_t *)ntfs_print },
+	{ &vop_pathconf_desc, ntfs_pathconf },
+
+	{ &vop_islocked_desc, (vop_t *)vop_generic_islocked },
+	{ &vop_unlock_desc, (vop_t *)vop_generic_unlock },
+	{ &vop_lock_desc, (vop_t *)vop_generic_lock },
+	{ &vop_lookup_desc, (vop_t *)ntfs_lookup },
+
+	{ &vop_access_desc, (vop_t *)ntfs_access },
+	{ &vop_close_desc, (vop_t *)ntfs_close },
+	{ &vop_open_desc, (vop_t *)ntfs_open },
+	{ &vop_readdir_desc, (vop_t *)ntfs_readdir },
+	{ &vop_fsync_desc, (vop_t *)ntfs_fsync },
+
+	{ &vop_bmap_desc, (vop_t *)ntfs_bmap },
+	{ &vop_strategy_desc, (vop_t *)ntfs_strategy },
+	{ &vop_bwrite_desc, (vop_t *)vop_generic_bwrite },
+	{ &vop_read_desc, (vop_t *)ntfs_read },
+	{ &vop_write_desc, (vop_t *)ntfs_write },
+
+	{ NULL, NULL }
+};
+
+const struct vnodeopv_desc ntfs_vnodeop_opv_desc =
+	{ &ntfs_vnodeop_p, ntfs_vnodeop_entries };
+
+#else /* !FreeBSD && !OpenBSD*/
+
+const struct vnodeopv_entry_desc ntfs_vnodeop_entries[] = {
+	{ &vop_default_desc, (vop_t *) ntfs_bypass },
+	{ &vop_lookup_desc, (vop_t *) ntfs_lookup },	/* lookup */
+	{ &vop_create_desc, genfs_eopnotsupp },		/* create */
+	{ &vop_mknod_desc, genfs_eopnotsupp },		/* mknod */
+	{ &vop_open_desc, (vop_t *) ntfs_open },	/* open */
+	{ &vop_close_desc,(vop_t *)  ntfs_close },	/* close */
+	{ &vop_access_desc, (vop_t *) ntfs_access },	/* access */
+	{ &vop_getattr_desc, (vop_t *) ntfs_getattr },	/* getattr */
+	{ &vop_setattr_desc, genfs_eopnotsupp },	/* setattr */
+	{ &vop_read_desc, (vop_t *) ntfs_read },	/* read */
+	{ &vop_write_desc, (vop_t *) ntfs_write },	/* write */
+	{ &vop_lease_desc, genfs_lease_check },		/* lease */
+	{ &vop_fcntl_desc, genfs_fcntl },		/* fcntl */
+	{ &vop_ioctl_desc, genfs_enoioctl },		/* ioctl */
+	{ &vop_poll_desc, genfs_poll },			/* poll */
+	{ &vop_kqfilter_desc, genfs_kqfilter },		/* kqfilter */
+	{ &vop_revoke_desc, genfs_revoke },		/* revoke */
+	{ &vop_mmap_desc, genfs_mmap },			/* mmap */
+	{ &vop_fsync_desc, genfs_fsync },		/* fsync */
+	{ &vop_seek_desc, genfs_seek },			/* seek */
+	{ &vop_remove_desc, genfs_eopnotsupp },		/* remove */
+	{ &vop_link_desc, genfs_eopnotsupp },		/* link */
+	{ &vop_rename_desc, genfs_eopnotsupp },		/* rename */
+	{ &vop_mkdir_desc, genfs_eopnotsupp },		/* mkdir */
+	{ &vop_rmdir_desc, genfs_eopnotsupp },		/* rmdir */
+	{ &vop_symlink_desc, genfs_eopnotsupp },	/* symlink */
+	{ &vop_readdir_desc, (vop_t *) ntfs_readdir },	/* readdir */
+	{ &vop_readlink_desc, genfs_eopnotsupp },	/* readlink */
+	{ &vop_abortop_desc, genfs_abortop },		/* abortop */
+	{ &vop_inactive_desc, (vop_t *) ntfs_inactive },	/* inactive */
+	{ &vop_reclaim_desc, (vop_t *) ntfs_reclaim },	/* reclaim */
+	{ &vop_lock_desc, genfs_lock },			/* lock */
+	{ &vop_unlock_desc, genfs_unlock },		/* unlock */
+	{ &vop_bmap_desc, (vop_t *) ntfs_bmap },	/* bmap */
+	{ &vop_strategy_desc, (vop_t *) ntfs_strategy },	/* strategy */
+	{ &vop_print_desc, (vop_t *) ntfs_print },	/* print */
+	{ &vop_islocked_desc, genfs_islocked },		/* islocked */
+	{ &vop_pathconf_desc, ntfs_pathconf },		/* pathconf */
+	{ &vop_advlock_desc, genfs_nullop },		/* advlock */
+	{ &vop_blkatoff_desc, genfs_eopnotsupp },	/* blkatoff */
+	{ &vop_valloc_desc, genfs_eopnotsupp },		/* valloc */
+	{ &vop_reallocblks_desc, genfs_eopnotsupp },	/* reallocblks */
+	{ &vop_vfree_desc, genfs_eopnotsupp },		/* vfree */
+	{ &vop_truncate_desc, genfs_eopnotsupp },	/* truncate */
+	{ &vop_update_desc, genfs_eopnotsupp },		/* update */
+	{ &vop_bwrite_desc, vn_bwrite },		/* bwrite */
+	{ &vop_getpages_desc, genfs_compat_getpages },	/* getpages */
+	{ &vop_putpages_desc, genfs_putpages },		/* putpages */
+	{ NULL, NULL }
+};
+const struct vnodeopv_desc ntfs_vnodeop_opv_desc =
+	{ &ntfs_vnodeop_p, ntfs_vnodeop_entries };
+
+#endif