698f9cf828
Correctly lock vnodes when calling VOP_OPEN() from filesystem mount code. Unify spec_open() for bdev and cdev cases. Remove the disabled bdev specific read/write code.
1007 lines
22 KiB
C
1007 lines
22 KiB
C
/* $NetBSD: ntfs_vfsops.c,v 1.2 1999/05/06 15:43:20 christos 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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* $FreeBSD$
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*/
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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/conf.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 <vm/vm.h>
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#include <vm/vm_param.h>
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#include <vm/vm_page.h>
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#include <vm/vm_object.h>
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#include <vm/vm_extern.h>
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/*#define NTFS_DEBUG 1*/
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#include <ntfs/ntfs.h>
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#include <ntfs/ntfs_inode.h>
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#include <ntfs/ntfs_subr.h>
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#include <ntfs/ntfs_vfsops.h>
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#include <ntfs/ntfs_ihash.h>
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#include <ntfs/ntfs_extern.h>
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#include <ntfs/ntfsmount.h>
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#if defined(__FreeBSD__)
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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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#endif
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#if defined(__FreeBSD__)
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static int ntfs_mount __P((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 __P((struct mount *, const char *, void *,
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struct nameidata *, struct proc *));
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#endif
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static int ntfs_root __P((struct mount *, struct vnode **));
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static int ntfs_statfs __P((struct mount *, struct statfs *,
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struct proc *));
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static int ntfs_unmount __P((struct mount *, int, struct proc *));
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static int ntfs_vget __P((struct mount *mp, ino_t ino,
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struct vnode **vpp));
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static int ntfs_mountfs __P((register struct vnode *, struct mount *,
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struct ntfs_args *, struct proc *));
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#if !defined(__FreeBSD__)
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static int ntfs_quotactl __P((struct mount *, int, uid_t, caddr_t,
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struct proc *));
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static int ntfs_start __P((struct mount *, int, struct proc *));
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static int ntfs_sync __P((struct mount *, int, struct ucred *,
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struct proc *));
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static int ntfs_vptofh __P((struct vnode *, struct fid *));
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#endif /* !defined(__FreeBSD__) */
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#if defined(__FreeBSD__)
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static int ntfs_init __P((struct vfsconf *));
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#if 0 /* may be implemented at a later date */
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static int ntfs_fhtovp __P((struct mount *, struct fid *,
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struct vnode **));
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static int ntfs_checkexp __P((struct vnode *, struct mbuf *,
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int *, struct ucred **));
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#endif /* 0, default ops in FreeBSD */
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#elif defined(__NetBSD__)
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static void ntfs_init __P((void));
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static int ntfs_fhtovp __P((struct mount *, struct fid *,
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struct vnode **));
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static int ntfs_checkexp __P((struct mount *, struct mbuf *,
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int *, struct ucred **));
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static int ntfs_mountroot __P((void));
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static int ntfs_sysctl __P((int *, u_int, void *, size_t *, void *,
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size_t, struct proc *));
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#else
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static int ntfs_init __P((void));
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static int ntfs_fhtovp __P((struct mount *, struct fid *,
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struct mbuf *, struct vnode **,
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int *, struct ucred **));
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#endif
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#ifdef __NetBSD__
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/*ARGSUSED*/
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static int
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ntfs_checkexp(mp, nam, exflagsp, credanonp)
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register struct mount *mp;
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struct mbuf *nam;
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int *exflagsp;
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struct ucred **credanonp;
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{
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return (EINVAL);
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}
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/*ARGSUSED*/
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static int
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ntfs_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p)
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int *name;
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u_int namelen;
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void *oldp;
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size_t *oldlenp;
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void *newp;
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size_t newlen;
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struct proc *p;
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{
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return (EINVAL);
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}
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static int
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ntfs_mountroot()
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{
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return (EINVAL);
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}
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#endif
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#if 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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#elif defined(__NetBSD__)
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static void
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ntfs_init ()
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#else
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static int
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ntfs_init ()
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#endif
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{
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ntfs_nthashinit();
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#if !defined(__NetBSD__)
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return 0;
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#endif
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}
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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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struct proc *p )
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{
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u_int size;
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int err = 0;
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struct vnode *devvp;
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struct ntfs_args args;
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/*
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* Use NULL path to flag a root mount
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*/
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if( path == NULL) {
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/*
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***
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* Mounting root file system
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***
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*/
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/* Get vnode for root device*/
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if( bdevvp( rootdev, &rootvp))
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panic("ffs_mountroot: can't setup bdevvp for root");
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/*
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* FS specific handling
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*/
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mp->mnt_flag |= MNT_RDONLY; /* XXX globally applicable?*/
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/*
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* Attempt mount
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*/
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if( ( err = ntfs_mountfs(rootvp, mp, &args, p)) != 0) {
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/* fs specific cleanup (if any)*/
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goto error_1;
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}
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goto dostatfs; /* success*/
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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, (caddr_t)&args, sizeof (struct ntfs_args));
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if (err)
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goto error_1; /* 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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err = EINVAL;
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goto error_1;
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#if 0
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ump = VFSTOUFS(mp);
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fs = ump->um_fs;
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err = 0;
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if (fs->fs_ronly == 0 && (mp->mnt_flag & MNT_RDONLY)) {
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flags = WRITECLOSE;
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if (mp->mnt_flag & MNT_FORCE)
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flags |= FORCECLOSE;
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if (vfs_busy(mp)) {
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err = EBUSY;
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goto error_1;
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}
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err = ffs_flushfiles(mp, flags, p);
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vfs_unbusy(mp);
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}
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if (!err && (mp->mnt_flag & MNT_RELOAD))
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err = ffs_reload(mp, ndp->ni_cnd.cn_cred, p);
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if (err) {
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goto error_1;
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}
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if (fs->fs_ronly && (mp->mnt_flag & MNT_WANTRDWR)) {
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if (!fs->fs_clean) {
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if (mp->mnt_flag & MNT_FORCE) {
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printf("WARNING: %s was not properly dismounted.\n",fs->fs_fsmnt);
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} else {
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printf("WARNING: R/W mount of %s denied. Filesystem is not clean - run fsck.\n",
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fs->fs_fsmnt);
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err = EPERM;
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goto error_1;
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}
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}
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fs->fs_ronly = 0;
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}
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if (fs->fs_ronly == 0) {
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fs->fs_clean = 0;
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ffs_sbupdate(ump, MNT_WAIT);
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}
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/* if not updating name...*/
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if (args.fspec == 0) {
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/*
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* Process export requests. Jumping to "success"
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* will return the vfs_export() error code.
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*/
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err = vfs_export(mp, &ump->um_export, &args.export);
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goto success;
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}
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#endif
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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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NDINIT(ndp, LOOKUP, FOLLOW, UIO_USERSPACE, args.fspec, p);
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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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goto error_1;
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}
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devvp = ndp->ni_vp;
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if (!vn_isdisk(devvp)) {
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err = ENOTBLK;
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goto error_2;
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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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else
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vrele(devvp);
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/*
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* Update device name only on success
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*/
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if( !err) {
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/* Save "mounted from" info for mount point (NULL pad)*/
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copyinstr( args.fspec,
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mp->mnt_stat.f_mntfromname,
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MNAMELEN - 1,
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&size);
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bzero( mp->mnt_stat.f_mntfromname + size, MNAMELEN - size);
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}
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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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copyinstr( path, /* mount point*/
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mp->mnt_stat.f_mntonname, /* save area*/
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MNAMELEN - 1, /* max size*/
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&size); /* real size*/
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bzero( mp->mnt_stat.f_mntonname + size, MNAMELEN - size);
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/* Save "mounted from" info for mount point (NULL pad)*/
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copyinstr( args.fspec, /* device name*/
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mp->mnt_stat.f_mntfromname, /* save area*/
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MNAMELEN - 1, /* max size*/
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&size); /* real size*/
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bzero( mp->mnt_stat.f_mntfromname + size, MNAMELEN - size);
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err = ntfs_mountfs(devvp, mp, &args, p);
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}
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if (err) {
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goto error_2;
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}
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dostatfs:
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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_STATFS(mp, &mp->mnt_stat, p);
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goto success;
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error_2: /* error with devvp held*/
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/* release devvp before failing*/
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vrele(devvp);
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error_1: /* no state to back out*/
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success:
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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, p)
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register struct vnode *devvp;
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struct mount *mp;
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struct ntfs_args *argsp;
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struct proc *p;
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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, ncount, i;
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struct vnode *vp;
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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 miniroot).
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* Flush out any old buffers remaining from a previous use.
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*/
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error = vfs_mountedon(devvp);
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if (error)
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return (error);
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ncount = vcount(devvp);
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#if defined(__FreeBSD__)
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if (devvp->v_object)
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ncount -= 1;
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#endif
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if (ncount > 1 && devvp != rootvp)
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return (EBUSY);
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#if defined(__FreeBSD__)
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vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY, p);
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error = vinvalbuf(devvp, V_SAVE, p->p_ucred, p, 0, 0);
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VOP_UNLOCK(devvp, 0, p);
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#else
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error = vinvalbuf(devvp, V_SAVE, p->p_ucred, p, 0, 0);
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#endif
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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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vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY, p);
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error = VOP_OPEN(devvp, ronly ? FREAD : FREAD|FWRITE, FSCRED, p);
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VOP_UNLOCK(devvp, 0, p);
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if (error)
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return (error);
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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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printf("ntfs_mountfs: invalid boot block\n");
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goto out;
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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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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 = (qaddr_t)ntmp;
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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.",
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(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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*/
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{
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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]]));
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if(error)
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goto out1;
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ntmp->ntm_sysvn[pi[i]]->v_flag |= VSYSTEM;
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VREF(ntmp->ntm_sysvn[pi[i]]);
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vput(ntmp->ntm_sysvn[pi[i]]);
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}
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}
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/*
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|
* Read in WHOLE lowcase -> upcase translation
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* file.
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|
*/
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MALLOC(ntmp->ntm_upcase, wchar *, 65536 * sizeof(wchar),
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M_NTFSMNT, M_WAITOK);
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error = VFS_VGET(mp, NTFS_UPCASEINO, &vp);
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if(error)
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goto out1;
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error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL,
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0, 65536*sizeof(wchar), ntmp->ntm_upcase);
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vput(vp);
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if(error)
|
|
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);
|
|
if (error)
|
|
goto out1;
|
|
if (ad.ad_name[0] == 0)
|
|
break;
|
|
}
|
|
|
|
/* Alloc memory for attribute definitions */
|
|
MALLOC(ntmp->ntm_ad, struct ntvattrdef *,
|
|
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);
|
|
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);
|
|
}
|
|
|
|
mp->mnt_stat.f_fsid.val[0] = dev2udev(dev);
|
|
#if defined(__FreeBSD__)
|
|
mp->mnt_stat.f_fsid.val[1] = mp->mnt_vfc->vfc_typenum;
|
|
#else
|
|
mp->mnt_stat.f_fsid.val[1] = makefstype(MOUNT_NTFS);
|
|
#endif
|
|
mp->mnt_maxsymlinklen = 0;
|
|
mp->mnt_flag |= MNT_LOCAL;
|
|
#if defined(__FreeBSD__)
|
|
devvp->v_specmountpoint = mp;
|
|
#else
|
|
devvp->v_specflags |= SI_MOUNTEDON;
|
|
#endif
|
|
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))
|
|
printf("ntfs_mountfs: vflush failed\n");
|
|
|
|
out:
|
|
#if defined(__FreeBSD__)
|
|
devvp->v_specmountpoint = NULL;
|
|
#else
|
|
devvp->v_specflags &= ~SI_MOUNTEDON;
|
|
#endif
|
|
if (bp)
|
|
brelse(bp);
|
|
(void)VOP_CLOSE(devvp, ronly ? FREAD : FREAD|FWRITE, NOCRED, p);
|
|
return (error);
|
|
}
|
|
|
|
#if !defined(__FreeBSD__)
|
|
static int
|
|
ntfs_start (
|
|
struct mount *mp,
|
|
int flags,
|
|
struct proc *p )
|
|
{
|
|
return (0);
|
|
}
|
|
#endif /* !defined(__FreeBSD__) */
|
|
|
|
static int
|
|
ntfs_unmount(
|
|
struct mount *mp,
|
|
int mntflags,
|
|
struct proc *p)
|
|
{
|
|
register 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) {
|
|
printf("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);
|
|
|
|
/* Derefernce 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)
|
|
printf("ntfs_unmount: vflush failed(sysnodes): %d\n",error);
|
|
|
|
#if defined(__FreeBSD__)
|
|
ntmp->ntm_devvp->v_specmountpoint = NULL;
|
|
#else
|
|
ntmp->ntm_devvp->v_specflags &= ~SI_MOUNTEDON;
|
|
#endif
|
|
|
|
vinvalbuf(ntmp->ntm_devvp, V_SAVE, NOCRED, p, 0, 0);
|
|
error = VOP_CLOSE(ntmp->ntm_devvp, ronly ? FREAD : FREAD|FWRITE,
|
|
NOCRED, p);
|
|
|
|
vrele(ntmp->ntm_devvp);
|
|
|
|
dprintf(("ntfs_umount: freeing memory...\n"));
|
|
mp->mnt_data = (qaddr_t)0;
|
|
mp->mnt_flag &= ~MNT_LOCAL;
|
|
FREE(ntmp->ntm_ad, M_NTFSMNT);
|
|
FREE(ntmp->ntm_upcase, 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);
|
|
}
|
|
|
|
#if !defined(__FreeBSD__)
|
|
static int
|
|
ntfs_quotactl (
|
|
struct mount *mp,
|
|
int cmds,
|
|
uid_t uid,
|
|
caddr_t arg,
|
|
struct proc *p)
|
|
{
|
|
printf("\nntfs_quotactl():\n");
|
|
return EOPNOTSUPP;
|
|
}
|
|
#endif /* !defined(__FreeBSD__) */
|
|
|
|
int
|
|
ntfs_calccfree(
|
|
struct ntfsmount *ntmp,
|
|
cn_t *cfreep)
|
|
{
|
|
struct vnode *vp;
|
|
u_int8_t *tmp;
|
|
int j, error;
|
|
long cfree = 0;
|
|
size_t bmsize, i;
|
|
|
|
vp = ntmp->ntm_sysvn[NTFS_BITMAPINO];
|
|
|
|
bmsize = VTOF(vp)->f_size;
|
|
|
|
MALLOC(tmp, u_int8_t *, bmsize, M_TEMP, M_WAITOK);
|
|
|
|
error = ntfs_readattr(ntmp, VTONT(vp), NTFS_A_DATA, NULL,
|
|
0, bmsize, tmp);
|
|
if(error) {
|
|
FREE(tmp, M_TEMP);
|
|
return (error);
|
|
}
|
|
|
|
for(i=0;i<bmsize;i++)
|
|
for(j=0;j<8;j++)
|
|
if(~tmp[i] & (1 << j)) cfree++;
|
|
|
|
FREE(tmp, M_TEMP);
|
|
|
|
*cfreep = cfree;
|
|
|
|
return(0);
|
|
}
|
|
|
|
static int
|
|
ntfs_statfs(
|
|
struct mount *mp,
|
|
struct statfs *sbp,
|
|
struct proc *p)
|
|
{
|
|
struct ntfsmount *ntmp = VFSTONTFS(mp);
|
|
u_int64_t mftsize,mftallocated;
|
|
|
|
dprintf(("ntfs_statfs():\n"));
|
|
|
|
mftsize = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_size;
|
|
mftallocated = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_allocated;
|
|
|
|
#if defined(__FreeBSD__)
|
|
sbp->f_type = mp->mnt_vfc->vfc_typenum;
|
|
#elif defined(__NetBSD__)
|
|
sbp->f_type = 0;
|
|
#else
|
|
sbp->f_type = MOUNT_NTFS;
|
|
#endif
|
|
sbp->f_bsize = ntmp->ntm_bps;
|
|
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_bfree / ntmp->ntm_bpmftrec;
|
|
sbp->f_files = mftallocated / ntfs_bntob(ntmp->ntm_bpmftrec) +
|
|
sbp->f_ffree;
|
|
if (sbp != &mp->mnt_stat) {
|
|
bcopy((caddr_t)mp->mnt_stat.f_mntonname,
|
|
(caddr_t)&sbp->f_mntonname[0], MNAMELEN);
|
|
bcopy((caddr_t)mp->mnt_stat.f_mntfromname,
|
|
(caddr_t)&sbp->f_mntfromname[0], MNAMELEN);
|
|
}
|
|
sbp->f_flags = mp->mnt_flag;
|
|
|
|
return (0);
|
|
}
|
|
|
|
#if !defined(__FreeBSD__)
|
|
static int
|
|
ntfs_sync (
|
|
struct mount *mp,
|
|
int waitfor,
|
|
struct ucred *cred,
|
|
struct proc *p)
|
|
{
|
|
/*dprintf(("ntfs_sync():\n"));*/
|
|
return (0);
|
|
}
|
|
#endif /* !defined(__FreeBSD__) */
|
|
|
|
#if !defined(__FreeBSD__)
|
|
/*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
|
|
{
|
|
printf("\ntfs_fhtovp():\n");
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ntfs_vptofh(
|
|
struct vnode *vp,
|
|
struct fid *fhp)
|
|
{
|
|
printf("ntfs_vptofh():\n");
|
|
return EOPNOTSUPP;
|
|
}
|
|
#endif /* !defined(__FreeBSD__) */
|
|
|
|
int
|
|
ntfs_vgetex(
|
|
struct mount *mp,
|
|
ino_t ino,
|
|
u_int32_t attrtype,
|
|
char *attrname,
|
|
u_long lkflags,
|
|
u_long flags,
|
|
struct proc *p,
|
|
struct vnode **vpp)
|
|
{
|
|
int error;
|
|
register struct ntfsmount *ntmp;
|
|
struct ntnode *ip;
|
|
struct fnode *fp;
|
|
struct vnode *vp;
|
|
|
|
dprintf(("ntfs_vgetex: ino: %d, attr: 0x%x:%s, lkf: 0x%x, f: 0x%x\n",
|
|
ino, attrtype, attrname?attrname:"", lkflags, 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: %d\n",
|
|
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 == 0x80 && fp->f_attrname == NULL)) {
|
|
fp->f_type = VDIR;
|
|
} else if(flags & VG_EXT) {
|
|
fp->f_type = VNON;
|
|
|
|
fp->f_size =fp->f_allocated = 0;
|
|
} else {
|
|
fp->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;
|
|
}
|
|
|
|
if (FTOV(fp)) {
|
|
VGET(FTOV(fp), lkflags, p);
|
|
*vpp = FTOV(fp);
|
|
ntfs_ntput(ip);
|
|
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: %d\n", vp,ino));
|
|
|
|
lockinit(&fp->f_lock, PINOD, "fnode", 0, 0);
|
|
fp->f_vp = vp;
|
|
vp->v_data = fp;
|
|
vp->v_type = fp->f_type;
|
|
|
|
if (ino == NTFS_ROOTINO)
|
|
vp->v_flag |= VROOT;
|
|
|
|
ntfs_ntput(ip);
|
|
|
|
if (lkflags & LK_TYPE_MASK) {
|
|
error = VN_LOCK(vp, lkflags, p);
|
|
if (error) {
|
|
vput(vp);
|
|
return (error);
|
|
}
|
|
}
|
|
|
|
VREF(fp->f_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, 0, curproc, vpp);
|
|
}
|
|
|
|
#if defined(__FreeBSD__)
|
|
static struct vfsops ntfs_vfsops = {
|
|
ntfs_mount,
|
|
vfs_stdstart,
|
|
ntfs_unmount,
|
|
ntfs_root,
|
|
vfs_stdquotactl,
|
|
ntfs_statfs,
|
|
vfs_stdsync,
|
|
ntfs_vget,
|
|
vfs_stdfhtovp,
|
|
vfs_stdcheckexp,
|
|
vfs_stdvptofh,
|
|
ntfs_init,
|
|
NULL
|
|
};
|
|
VFS_SET(ntfs_vfsops, ntfs, 0);
|
|
#elif defined(__NetBSD__)
|
|
extern struct vnodeopv_desc ntfs_vnodeop_opv_desc;
|
|
|
|
struct vnodeopv_desc *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_statfs,
|
|
ntfs_sync,
|
|
ntfs_vget,
|
|
ntfs_fhtovp,
|
|
ntfs_vptofh,
|
|
ntfs_init,
|
|
ntfs_sysctl,
|
|
ntfs_mountroot,
|
|
ntfs_checkexp,
|
|
ntfs_vnodeopv_descs,
|
|
};
|
|
#else
|
|
static struct vfsops ntfs_vfsops = {
|
|
ntfs_mount,
|
|
ntfs_start,
|
|
ntfs_unmount,
|
|
ntfs_root,
|
|
ntfs_quotactl,
|
|
ntfs_statfs,
|
|
ntfs_sync,
|
|
ntfs_vget,
|
|
ntfs_fhtovp,
|
|
ntfs_vptofh,
|
|
ntfs_init,
|
|
};
|
|
VFS_SET(ntfs_vfsops, ntfs, MOUNT_NTFS, 0);
|
|
#endif
|
|
|
|
|