1031 lines
23 KiB
C
1031 lines
23 KiB
C
/* $NetBSD: ntfs_vfsops.c,v 1.48 2007/01/19 14:49:09 hannken Exp $ */
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/*-
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* Copyright (c) 1998, 1999 Semen Ustimenko
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* Id: ntfs_vfsops.c,v 1.7 1999/05/31 11:28:30 phk Exp
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: ntfs_vfsops.c,v 1.48 2007/01/19 14:49:09 hannken Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/namei.h>
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#include <sys/proc.h>
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#include <sys/kernel.h>
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#include <sys/vnode.h>
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#include <sys/mount.h>
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#include <sys/buf.h>
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#include <sys/fcntl.h>
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#include <sys/malloc.h>
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#include <sys/sysctl.h>
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#include <sys/device.h>
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#include <sys/conf.h>
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#include <sys/kauth.h>
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#if defined(__NetBSD__)
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#include <uvm/uvm_extern.h>
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#else
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#include <vm/vm.h>
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#endif
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#include <miscfs/specfs/specdev.h>
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#include <fs/ntfs/ntfs.h>
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#include <fs/ntfs/ntfs_inode.h>
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#include <fs/ntfs/ntfs_subr.h>
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#include <fs/ntfs/ntfs_vfsops.h>
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#include <fs/ntfs/ntfs_ihash.h>
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#include <fs/ntfs/ntfsmount.h>
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MALLOC_DEFINE(M_NTFSMNT, "NTFS mount", "NTFS mount structure");
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MALLOC_DEFINE(M_NTFSNTNODE,"NTFS ntnode", "NTFS ntnode information");
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MALLOC_DEFINE(M_NTFSFNODE,"NTFS fnode", "NTFS fnode information");
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MALLOC_DEFINE(M_NTFSDIR,"NTFS dir", "NTFS dir buffer");
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#if defined(__FreeBSD__)
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static int ntfs_mount(struct mount *, char *, caddr_t,
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struct nameidata *, struct proc *);
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#else
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static int ntfs_mount(struct mount *, const char *, void *,
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struct nameidata *, struct lwp *);
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#endif
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static int ntfs_quotactl(struct mount *, int, uid_t, void *,
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struct lwp *);
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static int ntfs_root(struct mount *, struct vnode **);
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static int ntfs_start(struct mount *, int, struct lwp *);
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static int ntfs_statvfs(struct mount *, struct statvfs *,
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struct lwp *);
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static int ntfs_sync(struct mount *, int, kauth_cred_t,
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struct lwp *);
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static int ntfs_unmount(struct mount *, int, struct lwp *);
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static int ntfs_vget(struct mount *mp, ino_t ino,
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struct vnode **vpp);
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static int ntfs_mountfs(struct vnode *, struct mount *,
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struct ntfs_args *, struct lwp *);
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static int ntfs_vptofh(struct vnode *, struct fid *, size_t *);
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#if defined(__FreeBSD__)
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static int ntfs_init(struct vfsconf *);
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static int ntfs_fhtovp(struct mount *, struct fid *,
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struct sockaddr *, struct vnode **,
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int *, struct ucred **);
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#elif defined(__NetBSD__)
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static void ntfs_init(void);
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static void ntfs_reinit(void);
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static void ntfs_done(void);
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static int ntfs_fhtovp(struct mount *, struct fid *,
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struct vnode **);
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static int ntfs_mountroot(void);
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#else
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static int ntfs_init(void);
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static int ntfs_fhtovp(struct mount *, struct fid *,
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struct mbuf *, struct vnode **,
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int *, kauth_cred_t *);
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#endif
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static const struct genfs_ops ntfs_genfsops = {
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.gop_write = genfs_compat_gop_write,
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};
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#ifdef __NetBSD__
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SYSCTL_SETUP(sysctl_vfs_ntfs_setup, "sysctl vfs.ntfs subtree setup")
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{
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sysctl_createv(clog, 0, NULL, NULL,
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CTLFLAG_PERMANENT,
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CTLTYPE_NODE, "vfs", NULL,
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NULL, 0, NULL, 0,
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CTL_VFS, CTL_EOL);
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sysctl_createv(clog, 0, NULL, NULL,
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CTLFLAG_PERMANENT,
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CTLTYPE_NODE, "ntfs",
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SYSCTL_DESCR("NTFS file system"),
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NULL, 0, NULL, 0,
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CTL_VFS, 20, CTL_EOL);
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/*
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* XXX the "20" above could be dynamic, thereby eliminating
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* one more instance of the "number to vfs" mapping problem,
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* but "20" is the order as taken from sys/mount.h
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*/
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}
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static int
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ntfs_mountroot()
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{
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struct mount *mp;
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struct lwp *l = curlwp; /* XXX */
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int error;
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struct ntfs_args args;
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if (device_class(root_device) != DV_DISK)
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return (ENODEV);
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if ((error = vfs_rootmountalloc(MOUNT_NTFS, "root_device", &mp))) {
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vrele(rootvp);
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return (error);
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}
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args.flag = 0;
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args.uid = 0;
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args.gid = 0;
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args.mode = 0777;
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if ((error = ntfs_mountfs(rootvp, mp, &args, l)) != 0) {
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mp->mnt_op->vfs_refcount--;
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vfs_unbusy(mp);
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free(mp, M_MOUNT);
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return (error);
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}
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simple_lock(&mountlist_slock);
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CIRCLEQ_INSERT_TAIL(&mountlist, mp, mnt_list);
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simple_unlock(&mountlist_slock);
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(void)ntfs_statvfs(mp, &mp->mnt_stat, l);
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vfs_unbusy(mp);
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return (0);
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}
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static void
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ntfs_init()
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{
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#ifdef _LKM
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malloc_type_attach(M_NTFSMNT);
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malloc_type_attach(M_NTFSNTNODE);
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malloc_type_attach(M_NTFSFNODE);
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malloc_type_attach(M_NTFSDIR);
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malloc_type_attach(M_NTFSNTHASH);
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malloc_type_attach(M_NTFSNTVATTR);
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malloc_type_attach(M_NTFSRDATA);
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malloc_type_attach(M_NTFSDECOMP);
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malloc_type_attach(M_NTFSRUN);
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#endif
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ntfs_nthashinit();
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ntfs_toupper_init();
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}
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static void
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ntfs_reinit()
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{
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ntfs_nthashreinit();
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}
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static void
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ntfs_done()
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{
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ntfs_nthashdone();
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#ifdef _LKM
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malloc_type_detach(M_NTFSMNT);
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malloc_type_detach(M_NTFSNTNODE);
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malloc_type_detach(M_NTFSFNODE);
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malloc_type_detach(M_NTFSDIR);
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malloc_type_detach(M_NTFSNTHASH);
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malloc_type_detach(M_NTFSNTVATTR);
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malloc_type_detach(M_NTFSRDATA);
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malloc_type_detach(M_NTFSDECOMP);
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malloc_type_detach(M_NTFSRUN);
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#endif
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}
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#elif defined(__FreeBSD__)
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static int
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ntfs_init (
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struct vfsconf *vcp )
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{
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ntfs_nthashinit();
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ntfs_toupper_init();
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return 0;
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}
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#endif /* NetBSD */
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static int
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ntfs_mount (
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struct mount *mp,
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#if defined(__FreeBSD__)
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char *path,
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caddr_t data,
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#else
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const char *path,
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void *data,
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#endif
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struct nameidata *ndp,
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#if defined(__FreeBSD__)
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struct proc *p )
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#else
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struct lwp *l )
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#endif
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{
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int err = 0, flags;
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struct vnode *devvp;
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struct ntfs_args args;
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if (mp->mnt_flag & MNT_GETARGS) {
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struct ntfsmount *ntmp = VFSTONTFS(mp);
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if (ntmp == NULL)
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return EIO;
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args.fspec = NULL;
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args.uid = ntmp->ntm_uid;
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args.gid = ntmp->ntm_gid;
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args.mode = ntmp->ntm_mode;
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args.flag = ntmp->ntm_flag;
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return copyout(&args, data, sizeof(args));
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}
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/*
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***
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* Mounting non-root file system or updating a file system
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***
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*/
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/* copy in user arguments*/
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err = copyin(data, &args, sizeof (struct ntfs_args));
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if (err)
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return (err); /* can't get arguments*/
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/*
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* If updating, check whether changing from read-only to
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* read/write; if there is no device name, that's all we do.
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*/
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if (mp->mnt_flag & MNT_UPDATE) {
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printf("ntfs_mount(): MNT_UPDATE not supported\n");
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return (EINVAL);
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}
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/*
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* Not an update, or updating the name: look up the name
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* and verify that it refers to a sensible block device.
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*/
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#ifdef __FreeBSD__
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NDINIT(ndp, LOOKUP, FOLLOW, UIO_USERSPACE, args.fspec, p);
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#else
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NDINIT(ndp, LOOKUP, FOLLOW, UIO_USERSPACE, args.fspec, l);
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#endif
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err = namei(ndp);
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if (err) {
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/* can't get devvp!*/
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return (err);
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}
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devvp = ndp->ni_vp;
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if (devvp->v_type != VBLK) {
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err = ENOTBLK;
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goto fail;
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}
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#ifdef __FreeBSD__
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if (bdevsw(devvp->v_rdev) == NULL) {
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#else
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if (bdevsw_lookup(devvp->v_rdev) == NULL) {
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#endif
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err = ENXIO;
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goto fail;
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}
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if (mp->mnt_flag & MNT_UPDATE) {
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#if 0
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/*
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********************
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* UPDATE
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********************
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*/
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if (devvp != ntmp->um_devvp) {
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err = EINVAL; /* needs translation */
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goto fail;
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}
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/*
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* Update device name only on success
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*/
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err = set_statvfs_info(NULL, UIO_USERSPACE, args.fspec,
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UIO_USERSPACE, mp, p);
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if (err)
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goto fail;
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vrele(devvp);
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#endif
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} else {
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/*
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********************
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* NEW MOUNT
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********************
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*/
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/*
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* Since this is a new mount, we want the names for
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* the device and the mount point copied in. If an
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* error occurs, the mountpoint is discarded by the
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* upper level code.
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*/
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/* Save "last mounted on" info for mount point (NULL pad)*/
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err = set_statvfs_info(path, UIO_USERSPACE, args.fspec,
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UIO_USERSPACE, mp, l);
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if (err)
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goto fail;
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/*
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* Disallow multiple mounts of the same device.
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* Disallow mounting of a device that is currently in use
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* (except for root, which might share swap device for
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* miniroot).
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*/
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err = vfs_mountedon(devvp);
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if (err)
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goto fail;
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if (vcount(devvp) > 1 && devvp != rootvp) {
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err = EBUSY;
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goto fail;
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}
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if (mp->mnt_flag & MNT_RDONLY)
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flags = FREAD;
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else
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flags = FREAD|FWRITE;
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err = VOP_OPEN(devvp, flags, FSCRED, l);
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if (err)
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goto fail;
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err = ntfs_mountfs(devvp, mp, &args, l);
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if (err) {
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vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY);
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(void)VOP_CLOSE(devvp, flags, NOCRED, l);
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VOP_UNLOCK(devvp, 0);
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goto fail;
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}
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}
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#ifdef __FreeBSD__
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dostatvfs:
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#endif
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/*
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* Initialize FS stat information in mount struct; uses both
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* mp->mnt_stat.f_mntonname and mp->mnt_stat.f_mntfromname
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*
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* This code is common to root and non-root mounts
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*/
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(void)VFS_STATVFS(mp, &mp->mnt_stat, l);
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return (err);
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fail:
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vrele(devvp);
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return (err);
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}
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/*
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* Common code for mount and mountroot
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*/
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int
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ntfs_mountfs(devvp, mp, argsp, l)
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struct vnode *devvp;
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struct mount *mp;
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struct ntfs_args *argsp;
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struct lwp *l;
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{
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struct buf *bp;
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struct ntfsmount *ntmp;
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dev_t dev = devvp->v_rdev;
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int error, ronly, i;
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struct vnode *vp;
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ntmp = NULL;
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/*
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* Flush out any old buffers remaining from a previous use.
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*/
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vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY);
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error = vinvalbuf(devvp, V_SAVE, l->l_cred, l, 0, 0);
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VOP_UNLOCK(devvp, 0);
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if (error)
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return (error);
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ronly = (mp->mnt_flag & MNT_RDONLY) != 0;
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bp = NULL;
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error = bread(devvp, BBLOCK, BBSIZE, NOCRED, &bp);
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if (error)
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goto out;
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ntmp = malloc( sizeof *ntmp, M_NTFSMNT, M_WAITOK );
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bzero( ntmp, sizeof *ntmp );
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bcopy( bp->b_data, &ntmp->ntm_bootfile, sizeof(struct bootfile) );
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brelse( bp );
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bp = NULL;
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if (strncmp(ntmp->ntm_bootfile.bf_sysid, NTFS_BBID, NTFS_BBIDLEN)) {
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error = EINVAL;
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dprintf(("ntfs_mountfs: invalid boot block\n"));
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goto out;
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}
|
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|
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{
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int8_t cpr = ntmp->ntm_mftrecsz;
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if( cpr > 0 )
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ntmp->ntm_bpmftrec = ntmp->ntm_spc * cpr;
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else
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ntmp->ntm_bpmftrec = (1 << (-cpr)) / ntmp->ntm_bps;
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}
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dprintf(("ntfs_mountfs(): bps: %d, spc: %d, media: %x, mftrecsz: %d (%d sects)\n",
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ntmp->ntm_bps,ntmp->ntm_spc,ntmp->ntm_bootfile.bf_media,
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ntmp->ntm_mftrecsz,ntmp->ntm_bpmftrec));
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dprintf(("ntfs_mountfs(): mftcn: 0x%x|0x%x\n",
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(u_int32_t)ntmp->ntm_mftcn,(u_int32_t)ntmp->ntm_mftmirrcn));
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|
|
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ntmp->ntm_mountp = mp;
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ntmp->ntm_dev = dev;
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ntmp->ntm_devvp = devvp;
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ntmp->ntm_uid = argsp->uid;
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ntmp->ntm_gid = argsp->gid;
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ntmp->ntm_mode = argsp->mode;
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ntmp->ntm_flag = argsp->flag;
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mp->mnt_data = ntmp;
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|
|
|
/* set file name encode/decode hooks XXX utf-8 only for now */
|
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ntmp->ntm_wget = ntfs_utf8_wget;
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|
ntmp->ntm_wput = ntfs_utf8_wput;
|
|
ntmp->ntm_wcmp = ntfs_utf8_wcmp;
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|
|
dprintf(("ntfs_mountfs(): case-%s,%s uid: %d, gid: %d, mode: %o\n",
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(ntmp->ntm_flag & NTFS_MFLAG_CASEINS)?"insens.":"sens.",
|
|
(ntmp->ntm_flag & NTFS_MFLAG_ALLNAMES)?" allnames,":"",
|
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ntmp->ntm_uid, ntmp->ntm_gid, ntmp->ntm_mode));
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|
|
|
/*
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|
* We read in some system nodes to do not allow
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|
* reclaim them and to have everytime access to them.
|
|
*/
|
|
{
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|
int pi[3] = { NTFS_MFTINO, NTFS_ROOTINO, NTFS_BITMAPINO };
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for (i=0; i<3; i++) {
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error = VFS_VGET(mp, pi[i], &(ntmp->ntm_sysvn[pi[i]]));
|
|
if(error)
|
|
goto out1;
|
|
ntmp->ntm_sysvn[pi[i]]->v_flag |= VSYSTEM;
|
|
VREF(ntmp->ntm_sysvn[pi[i]]);
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|
vput(ntmp->ntm_sysvn[pi[i]]);
|
|
}
|
|
}
|
|
|
|
/* read the Unicode lowercase --> uppercase translation table,
|
|
* if necessary */
|
|
if ((error = ntfs_toupper_use(mp, ntmp)))
|
|
goto out1;
|
|
|
|
/*
|
|
* Scan $BitMap and count free clusters
|
|
*/
|
|
error = ntfs_calccfree(ntmp, &ntmp->ntm_cfree);
|
|
if(error)
|
|
goto out1;
|
|
|
|
/*
|
|
* Read and translate to internal format attribute
|
|
* definition file.
|
|
*/
|
|
{
|
|
int num,j;
|
|
struct attrdef ad;
|
|
|
|
/* Open $AttrDef */
|
|
error = VFS_VGET(mp, NTFS_ATTRDEFINO, &vp );
|
|
if(error)
|
|
goto out1;
|
|
|
|
/* Count valid entries */
|
|
for(num=0;;num++) {
|
|
error = ntfs_readattr(ntmp, VTONT(vp),
|
|
NTFS_A_DATA, NULL,
|
|
num * sizeof(ad), sizeof(ad),
|
|
&ad, NULL);
|
|
if (error)
|
|
goto out1;
|
|
if (ad.ad_name[0] == 0)
|
|
break;
|
|
}
|
|
|
|
/* Alloc memory for attribute definitions */
|
|
ntmp->ntm_ad = (struct ntvattrdef *) malloc(
|
|
num * sizeof(struct ntvattrdef),
|
|
M_NTFSMNT, M_WAITOK);
|
|
|
|
ntmp->ntm_adnum = num;
|
|
|
|
/* Read them and translate */
|
|
for(i=0;i<num;i++){
|
|
error = ntfs_readattr(ntmp, VTONT(vp),
|
|
NTFS_A_DATA, NULL,
|
|
i * sizeof(ad), sizeof(ad),
|
|
&ad, NULL);
|
|
if (error)
|
|
goto out1;
|
|
j = 0;
|
|
do {
|
|
ntmp->ntm_ad[i].ad_name[j] = ad.ad_name[j];
|
|
} while(ad.ad_name[j++]);
|
|
ntmp->ntm_ad[i].ad_namelen = j - 1;
|
|
ntmp->ntm_ad[i].ad_type = ad.ad_type;
|
|
}
|
|
|
|
vput(vp);
|
|
}
|
|
|
|
#if defined(__FreeBSD__)
|
|
mp->mnt_stat.f_fsid.val[0] = dev2udev(dev);
|
|
mp->mnt_stat.f_fsid.val[1] = mp->mnt_vfc->vfc_typenum;
|
|
#else
|
|
mp->mnt_stat.f_fsidx.__fsid_val[0] = dev;
|
|
mp->mnt_stat.f_fsidx.__fsid_val[1] = makefstype(MOUNT_NTFS);
|
|
mp->mnt_stat.f_fsid = mp->mnt_stat.f_fsidx.__fsid_val[0];
|
|
mp->mnt_stat.f_namemax = NTFS_MAXFILENAME;
|
|
#endif
|
|
mp->mnt_flag |= MNT_LOCAL;
|
|
devvp->v_specmountpoint = mp;
|
|
return (0);
|
|
|
|
out1:
|
|
for(i=0;i<NTFS_SYSNODESNUM;i++)
|
|
if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]);
|
|
|
|
if (vflush(mp,NULLVP,0)) {
|
|
dprintf(("ntfs_mountfs: vflush failed\n"));
|
|
}
|
|
out:
|
|
devvp->v_specmountpoint = NULL;
|
|
if (bp)
|
|
brelse(bp);
|
|
|
|
if (error) {
|
|
if (ntmp) {
|
|
if (ntmp->ntm_ad)
|
|
free(ntmp->ntm_ad, M_NTFSMNT);
|
|
free(ntmp, M_NTFSMNT);
|
|
}
|
|
}
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
ntfs_start (
|
|
struct mount *mp,
|
|
int flags,
|
|
struct lwp *l)
|
|
{
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
ntfs_unmount(
|
|
struct mount *mp,
|
|
int mntflags,
|
|
struct lwp *l)
|
|
{
|
|
struct ntfsmount *ntmp;
|
|
int error, ronly = 0, flags, i;
|
|
|
|
dprintf(("ntfs_unmount: unmounting...\n"));
|
|
ntmp = VFSTONTFS(mp);
|
|
|
|
flags = 0;
|
|
if(mntflags & MNT_FORCE)
|
|
flags |= FORCECLOSE;
|
|
|
|
dprintf(("ntfs_unmount: vflushing...\n"));
|
|
error = vflush(mp,NULLVP,flags | SKIPSYSTEM);
|
|
if (error) {
|
|
dprintf(("ntfs_unmount: vflush failed: %d\n",error));
|
|
return (error);
|
|
}
|
|
|
|
/* Check if only system vnodes are rest */
|
|
for(i=0;i<NTFS_SYSNODESNUM;i++)
|
|
if((ntmp->ntm_sysvn[i]) &&
|
|
(ntmp->ntm_sysvn[i]->v_usecount > 1)) return (EBUSY);
|
|
|
|
/* Dereference all system vnodes */
|
|
for(i=0;i<NTFS_SYSNODESNUM;i++)
|
|
if(ntmp->ntm_sysvn[i]) vrele(ntmp->ntm_sysvn[i]);
|
|
|
|
/* vflush system vnodes */
|
|
error = vflush(mp,NULLVP,flags);
|
|
if (error) {
|
|
/* XXX should this be panic() ? */
|
|
printf("ntfs_unmount: vflush failed(sysnodes): %d\n",error);
|
|
}
|
|
|
|
/* Check if the type of device node isn't VBAD before
|
|
* touching v_specinfo. If the device vnode is revoked, the
|
|
* field is NULL and touching it causes null pointer derefercence.
|
|
*/
|
|
if (ntmp->ntm_devvp->v_type != VBAD)
|
|
ntmp->ntm_devvp->v_specmountpoint = NULL;
|
|
|
|
vinvalbuf(ntmp->ntm_devvp, V_SAVE, NOCRED, l, 0, 0);
|
|
|
|
/* lock the device vnode before calling VOP_CLOSE() */
|
|
vn_lock(ntmp->ntm_devvp, LK_EXCLUSIVE | LK_RETRY);
|
|
error = VOP_CLOSE(ntmp->ntm_devvp, ronly ? FREAD : FREAD|FWRITE,
|
|
NOCRED, l);
|
|
VOP_UNLOCK(ntmp->ntm_devvp, 0);
|
|
|
|
vrele(ntmp->ntm_devvp);
|
|
|
|
/* free the toupper table, if this has been last mounted ntfs volume */
|
|
ntfs_toupper_unuse();
|
|
|
|
dprintf(("ntfs_umount: freeing memory...\n"));
|
|
mp->mnt_data = NULL;
|
|
mp->mnt_flag &= ~MNT_LOCAL;
|
|
free(ntmp->ntm_ad, M_NTFSMNT);
|
|
FREE(ntmp, M_NTFSMNT);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
ntfs_root(
|
|
struct mount *mp,
|
|
struct vnode **vpp)
|
|
{
|
|
struct vnode *nvp;
|
|
int error = 0;
|
|
|
|
dprintf(("ntfs_root(): sysvn: %p\n",
|
|
VFSTONTFS(mp)->ntm_sysvn[NTFS_ROOTINO]));
|
|
error = VFS_VGET(mp, (ino_t)NTFS_ROOTINO, &nvp);
|
|
if(error) {
|
|
printf("ntfs_root: VFS_VGET failed: %d\n",error);
|
|
return (error);
|
|
}
|
|
|
|
*vpp = nvp;
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Do operations associated with quotas, not supported
|
|
*/
|
|
/* ARGSUSED */
|
|
static int
|
|
ntfs_quotactl (
|
|
struct mount *mp,
|
|
int cmds,
|
|
uid_t uid,
|
|
void *arg,
|
|
struct lwp *l)
|
|
{
|
|
|
|
return EOPNOTSUPP;
|
|
}
|
|
|
|
int
|
|
ntfs_calccfree(
|
|
struct ntfsmount *ntmp,
|
|
cn_t *cfreep)
|
|
{
|
|
struct vnode *vp;
|
|
u_int8_t *tmp;
|
|
int j, error;
|
|
cn_t cfree = 0;
|
|
size_t bmsize, i;
|
|
|
|
vp = ntmp->ntm_sysvn[NTFS_BITMAPINO];
|
|
|
|
bmsize = VTOF(vp)->f_size;
|
|
|
|
tmp = (u_int8_t *) malloc(bmsize, M_TEMP, M_WAITOK);
|
|
|
|
error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL,
|
|
0, bmsize, tmp, NULL);
|
|
if (error)
|
|
goto out;
|
|
|
|
for(i=0;i<bmsize;i++)
|
|
for(j=0;j<8;j++)
|
|
if(~tmp[i] & (1 << j)) cfree++;
|
|
*cfreep = cfree;
|
|
|
|
out:
|
|
free(tmp, M_TEMP);
|
|
return(error);
|
|
}
|
|
|
|
static int
|
|
ntfs_statvfs(
|
|
struct mount *mp,
|
|
struct statvfs *sbp,
|
|
struct lwp *l)
|
|
{
|
|
struct ntfsmount *ntmp = VFSTONTFS(mp);
|
|
u_int64_t mftallocated;
|
|
|
|
dprintf(("ntfs_statvfs():\n"));
|
|
|
|
mftallocated = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_allocated;
|
|
|
|
#if defined(__FreeBSD__)
|
|
sbp->f_type = mp->mnt_vfc->vfc_typenum;
|
|
#endif
|
|
sbp->f_bsize = ntmp->ntm_bps;
|
|
sbp->f_frsize = sbp->f_bsize; /* XXX */
|
|
sbp->f_iosize = ntmp->ntm_bps * ntmp->ntm_spc;
|
|
sbp->f_blocks = ntmp->ntm_bootfile.bf_spv;
|
|
sbp->f_bfree = sbp->f_bavail = ntfs_cntobn(ntmp->ntm_cfree);
|
|
sbp->f_ffree = sbp->f_favail = sbp->f_bfree / ntmp->ntm_bpmftrec;
|
|
sbp->f_files = mftallocated / ntfs_bntob(ntmp->ntm_bpmftrec) +
|
|
sbp->f_ffree;
|
|
sbp->f_fresvd = sbp->f_bresvd = 0; /* XXX */
|
|
sbp->f_flag = mp->mnt_flag;
|
|
copy_statvfs_info(sbp, mp);
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
ntfs_sync (
|
|
struct mount *mp,
|
|
int waitfor,
|
|
kauth_cred_t cred,
|
|
struct lwp *l)
|
|
{
|
|
/*dprintf(("ntfs_sync():\n"));*/
|
|
return (0);
|
|
}
|
|
|
|
/*ARGSUSED*/
|
|
static int
|
|
ntfs_fhtovp(
|
|
#if defined(__FreeBSD__)
|
|
struct mount *mp,
|
|
struct fid *fhp,
|
|
struct sockaddr *nam,
|
|
struct vnode **vpp,
|
|
int *exflagsp,
|
|
struct ucred **credanonp)
|
|
#elif defined(__NetBSD__)
|
|
struct mount *mp,
|
|
struct fid *fhp,
|
|
struct vnode **vpp)
|
|
#else
|
|
struct mount *mp,
|
|
struct fid *fhp,
|
|
struct mbuf *nam,
|
|
struct vnode **vpp,
|
|
int *exflagsp,
|
|
struct ucred **credanonp)
|
|
#endif
|
|
{
|
|
struct ntfid ntfh;
|
|
int error;
|
|
|
|
if (fhp->fid_len != sizeof(struct ntfid))
|
|
return EINVAL;
|
|
memcpy(&ntfh, fhp, sizeof(ntfh));
|
|
ddprintf(("ntfs_fhtovp(): %s: %llu\n", mp->mnt_stat.f_mntonname,
|
|
(unsigned long long)ntfh.ntfid_ino));
|
|
|
|
error = ntfs_vgetex(mp, ntfh.ntfid_ino, ntfh.ntfid_attr, NULL,
|
|
LK_EXCLUSIVE | LK_RETRY, 0, vpp);
|
|
if (error != 0) {
|
|
*vpp = NULLVP;
|
|
return (error);
|
|
}
|
|
|
|
/* XXX as unlink/rmdir/mkdir/creat are not currently possible
|
|
* with NTFS, we don't need to check anything else for now */
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
ntfs_vptofh(
|
|
struct vnode *vp,
|
|
struct fid *fhp,
|
|
size_t *fh_size)
|
|
{
|
|
struct ntnode *ntp;
|
|
struct ntfid ntfh;
|
|
struct fnode *fn;
|
|
|
|
if (*fh_size < sizeof(struct ntfid)) {
|
|
*fh_size = sizeof(struct ntfid);
|
|
return E2BIG;
|
|
}
|
|
*fh_size = sizeof(struct ntfid);
|
|
|
|
ddprintf(("ntfs_fhtovp(): %s: %p\n", vp->v_mount->mnt_stat.f_mntonname,
|
|
vp));
|
|
|
|
fn = VTOF(vp);
|
|
ntp = VTONT(vp);
|
|
memset(&ntfh, 0, sizeof(ntfh));
|
|
ntfh.ntfid_len = sizeof(struct ntfid);
|
|
ntfh.ntfid_ino = ntp->i_number;
|
|
ntfh.ntfid_attr = fn->f_attrtype;
|
|
#ifdef notyet
|
|
ntfh.ntfid_gen = ntp->i_gen;
|
|
#endif
|
|
memcpy(fhp, &ntfh, sizeof(ntfh));
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
ntfs_vgetex(
|
|
struct mount *mp,
|
|
ino_t ino,
|
|
u_int32_t attrtype,
|
|
char *attrname,
|
|
u_long lkflags,
|
|
u_long flags,
|
|
struct vnode **vpp)
|
|
{
|
|
int error;
|
|
struct ntfsmount *ntmp;
|
|
struct ntnode *ip;
|
|
struct fnode *fp;
|
|
struct vnode *vp;
|
|
enum vtype f_type = VBAD;
|
|
|
|
dprintf(("ntfs_vgetex: ino: %llu, attr: 0x%x:%s, lkf: 0x%lx, f:"
|
|
" 0x%lx\n", (unsigned long long)ino, attrtype,
|
|
attrname ? attrname : "", (u_long)lkflags, (u_long)flags));
|
|
|
|
ntmp = VFSTONTFS(mp);
|
|
*vpp = NULL;
|
|
|
|
/* Get ntnode */
|
|
error = ntfs_ntlookup(ntmp, ino, &ip);
|
|
if (error) {
|
|
printf("ntfs_vget: ntfs_ntget failed\n");
|
|
return (error);
|
|
}
|
|
|
|
/* It may be not initialized fully, so force load it */
|
|
if (!(flags & VG_DONTLOADIN) && !(ip->i_flag & IN_LOADED)) {
|
|
error = ntfs_loadntnode(ntmp, ip);
|
|
if(error) {
|
|
printf("ntfs_vget: CAN'T LOAD ATTRIBUTES FOR INO:"
|
|
" %llu\n", (unsigned long long)ip->i_number);
|
|
ntfs_ntput(ip);
|
|
return (error);
|
|
}
|
|
}
|
|
|
|
error = ntfs_fget(ntmp, ip, attrtype, attrname, &fp);
|
|
if (error) {
|
|
printf("ntfs_vget: ntfs_fget failed\n");
|
|
ntfs_ntput(ip);
|
|
return (error);
|
|
}
|
|
|
|
if (!(flags & VG_DONTVALIDFN) && !(fp->f_flag & FN_VALID)) {
|
|
if ((ip->i_frflag & NTFS_FRFLAG_DIR) &&
|
|
(fp->f_attrtype == NTFS_A_DATA && fp->f_attrname == NULL)) {
|
|
f_type = VDIR;
|
|
} else if (flags & VG_EXT) {
|
|
f_type = VNON;
|
|
fp->f_size = fp->f_allocated = 0;
|
|
} else {
|
|
f_type = VREG;
|
|
|
|
error = ntfs_filesize(ntmp, fp,
|
|
&fp->f_size, &fp->f_allocated);
|
|
if (error) {
|
|
ntfs_ntput(ip);
|
|
return (error);
|
|
}
|
|
}
|
|
|
|
fp->f_flag |= FN_VALID;
|
|
}
|
|
|
|
/*
|
|
* We may be calling vget() now. To avoid potential deadlock, we need
|
|
* to release ntnode lock, since due to locking order vnode
|
|
* lock has to be acquired first.
|
|
* ntfs_fget() bumped ntnode usecount, so ntnode won't be recycled
|
|
* prematurely.
|
|
*/
|
|
ntfs_ntput(ip);
|
|
|
|
if (FTOV(fp)) {
|
|
/* vget() returns error if the vnode has been recycled */
|
|
if (vget(FTOV(fp), lkflags) == 0) {
|
|
*vpp = FTOV(fp);
|
|
return (0);
|
|
}
|
|
}
|
|
|
|
error = getnewvnode(VT_NTFS, ntmp->ntm_mountp, ntfs_vnodeop_p, &vp);
|
|
if(error) {
|
|
ntfs_frele(fp);
|
|
ntfs_ntput(ip);
|
|
return (error);
|
|
}
|
|
dprintf(("ntfs_vget: vnode: %p for ntnode: %llu\n", vp,
|
|
(unsigned long long)ino));
|
|
|
|
#ifdef __FreeBSD__
|
|
lockinit(&fp->f_lock, PINOD, "fnode", 0, 0);
|
|
#endif
|
|
fp->f_vp = vp;
|
|
vp->v_data = fp;
|
|
if (f_type != VBAD)
|
|
vp->v_type = f_type;
|
|
|
|
if (ino == NTFS_ROOTINO)
|
|
vp->v_flag |= VROOT;
|
|
|
|
if (lkflags & LK_TYPE_MASK) {
|
|
error = vn_lock(vp, lkflags);
|
|
if (error) {
|
|
vput(vp);
|
|
return (error);
|
|
}
|
|
}
|
|
|
|
genfs_node_init(vp, &ntfs_genfsops);
|
|
VREF(ip->i_devvp);
|
|
*vpp = vp;
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
ntfs_vget(
|
|
struct mount *mp,
|
|
ino_t ino,
|
|
struct vnode **vpp)
|
|
{
|
|
return ntfs_vgetex(mp, ino, NTFS_A_DATA, NULL,
|
|
LK_EXCLUSIVE | LK_RETRY, 0, vpp);
|
|
}
|
|
|
|
#if defined(__FreeBSD__)
|
|
static struct vfsops ntfs_vfsops = {
|
|
ntfs_mount,
|
|
ntfs_start,
|
|
ntfs_unmount,
|
|
ntfs_root,
|
|
ntfs_quotactl,
|
|
ntfs_statvfs,
|
|
ntfs_sync,
|
|
ntfs_vget,
|
|
ntfs_fhtovp,
|
|
ntfs_vptofh,
|
|
ntfs_init,
|
|
NULL
|
|
};
|
|
VFS_SET(ntfs_vfsops, ntfs, 0);
|
|
#elif defined(__NetBSD__)
|
|
extern const struct vnodeopv_desc ntfs_vnodeop_opv_desc;
|
|
|
|
const struct vnodeopv_desc * const ntfs_vnodeopv_descs[] = {
|
|
&ntfs_vnodeop_opv_desc,
|
|
NULL,
|
|
};
|
|
|
|
struct vfsops ntfs_vfsops = {
|
|
MOUNT_NTFS,
|
|
ntfs_mount,
|
|
ntfs_start,
|
|
ntfs_unmount,
|
|
ntfs_root,
|
|
ntfs_quotactl,
|
|
ntfs_statvfs,
|
|
ntfs_sync,
|
|
ntfs_vget,
|
|
ntfs_fhtovp,
|
|
ntfs_vptofh,
|
|
ntfs_init,
|
|
ntfs_reinit,
|
|
ntfs_done,
|
|
ntfs_mountroot,
|
|
(int (*)(struct mount *, struct vnode *, struct timespec *)) eopnotsupp,
|
|
vfs_stdextattrctl,
|
|
vfs_stdsuspendctl,
|
|
ntfs_vnodeopv_descs,
|
|
0,
|
|
{ NULL, NULL },
|
|
};
|
|
VFS_ATTACH(ntfs_vfsops);
|
|
#endif
|