/* $NetBSD: ntfs_vfsops.c,v 1.30 2005/03/29 02:41:05 thorpej Exp $ */ /*- * Copyright (c) 1998, 1999 Semen Ustimenko * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * Id: ntfs_vfsops.c,v 1.7 1999/05/31 11:28:30 phk Exp */ #include __KERNEL_RCSID(0, "$NetBSD: ntfs_vfsops.c,v 1.30 2005/03/29 02:41:05 thorpej Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #if defined(__NetBSD__) #include #else #include #endif #include /*#define NTFS_DEBUG 1*/ #include #include #include #include #include #include MALLOC_DEFINE(M_NTFSMNT, "NTFS mount", "NTFS mount structure"); MALLOC_DEFINE(M_NTFSNTNODE,"NTFS ntnode", "NTFS ntnode information"); MALLOC_DEFINE(M_NTFSFNODE,"NTFS fnode", "NTFS fnode information"); MALLOC_DEFINE(M_NTFSDIR,"NTFS dir", "NTFS dir buffer"); #if defined(__FreeBSD__) static int ntfs_mount __P((struct mount *, char *, caddr_t, struct nameidata *, struct proc *)); #else static int ntfs_mount __P((struct mount *, const char *, void *, struct nameidata *, struct proc *)); #endif static int ntfs_quotactl __P((struct mount *, int, uid_t, void *, struct proc *)); static int ntfs_root __P((struct mount *, struct vnode **)); static int ntfs_start __P((struct mount *, int, struct proc *)); static int ntfs_statvfs __P((struct mount *, struct statvfs *, struct proc *)); static int ntfs_sync __P((struct mount *, int, struct ucred *, struct proc *)); static int ntfs_unmount __P((struct mount *, int, struct proc *)); static int ntfs_vget __P((struct mount *mp, ino_t ino, struct vnode **vpp)); static int ntfs_mountfs __P((struct vnode *, struct mount *, struct ntfs_args *, struct proc *)); static int ntfs_vptofh __P((struct vnode *, struct fid *)); #if defined(__FreeBSD__) static int ntfs_init __P((struct vfsconf *)); static int ntfs_fhtovp __P((struct mount *, struct fid *, struct sockaddr *, struct vnode **, int *, struct ucred **)); #elif defined(__NetBSD__) static void ntfs_init __P((void)); static void ntfs_reinit __P((void)); static void ntfs_done __P((void)); static int ntfs_fhtovp __P((struct mount *, struct fid *, struct vnode **)); static int ntfs_checkexp __P((struct mount *, struct mbuf *, int *, struct ucred **)); static int ntfs_mountroot __P((void)); #else static int ntfs_init __P((void)); static int ntfs_fhtovp __P((struct mount *, struct fid *, struct mbuf *, struct vnode **, int *, struct ucred **)); #endif struct genfs_ops ntfs_genfsops = { NULL, NULL, genfs_compat_gop_write, }; #ifdef __NetBSD__ /* * Verify a remote client has export rights and return these rights via. * exflagsp and credanonp. */ static int ntfs_checkexp(mp, nam, exflagsp, credanonp) struct mount *mp; struct mbuf *nam; int *exflagsp; struct ucred **credanonp; { struct netcred *np; struct ntfsmount *ntm = VFSTONTFS(mp); /* * Get the export permission structure for this tuple. */ np = vfs_export_lookup(mp, &ntm->ntm_export, nam); if (np == NULL) return (EACCES); *exflagsp = np->netc_exflags; *credanonp = &np->netc_anon; return (0); } SYSCTL_SETUP(sysctl_vfs_ntfs_setup, "sysctl vfs.ntfs subtree setup") { sysctl_createv(clog, 0, NULL, NULL, CTLFLAG_PERMANENT, CTLTYPE_NODE, "vfs", NULL, NULL, 0, NULL, 0, CTL_VFS, CTL_EOL); sysctl_createv(clog, 0, NULL, NULL, CTLFLAG_PERMANENT, CTLTYPE_NODE, "ntfs", SYSCTL_DESCR("NTFS file system"), NULL, 0, NULL, 0, CTL_VFS, 20, CTL_EOL); /* * XXX the "20" above could be dynamic, thereby eliminating * one more instance of the "number to vfs" mapping problem, * but "20" is the order as taken from sys/mount.h */ } static int ntfs_mountroot() { struct mount *mp; struct proc *p = curproc; /* XXX */ int error; struct ntfs_args args; if (root_device->dv_class != DV_DISK) return (ENODEV); if ((error = vfs_rootmountalloc(MOUNT_NTFS, "root_device", &mp))) { vrele(rootvp); return (error); } args.flag = 0; args.uid = 0; args.gid = 0; args.mode = 0777; if ((error = ntfs_mountfs(rootvp, mp, &args, p)) != 0) { mp->mnt_op->vfs_refcount--; vfs_unbusy(mp); free(mp, M_MOUNT); return (error); } simple_lock(&mountlist_slock); CIRCLEQ_INSERT_TAIL(&mountlist, mp, mnt_list); simple_unlock(&mountlist_slock); (void)ntfs_statvfs(mp, &mp->mnt_stat, p); vfs_unbusy(mp); return (0); } static void ntfs_init() { #ifdef _LKM malloc_type_attach(M_NTFSMNT); malloc_type_attach(M_NTFSNTNODE); malloc_type_attach(M_NTFSFNODE); malloc_type_attach(M_NTFSDIR); malloc_type_attach(M_NTFSNTHASH); malloc_type_attach(M_NTFSNTVATTR); malloc_type_attach(M_NTFSRDATA); malloc_type_attach(M_NTFSDECOMP); malloc_type_attach(M_NTFSRUN); #endif ntfs_nthashinit(); ntfs_toupper_init(); } static void ntfs_reinit() { ntfs_nthashreinit(); } static void ntfs_done() { ntfs_nthashdone(); #ifdef _LKM malloc_type_detach(M_NTFSMNT); malloc_type_detach(M_NTFSNTNODE); malloc_type_detach(M_NTFSFNODE); malloc_type_detach(M_NTFSDIR); malloc_type_detach(M_NTFSNTHASH); malloc_type_detach(M_NTFSNTVATTR); malloc_type_detach(M_NTFSRDATA); malloc_type_detach(M_NTFSDECOMP); malloc_type_detach(M_NTFSRUN); #endif } #elif defined(__FreeBSD__) static int ntfs_init ( struct vfsconf *vcp ) { ntfs_nthashinit(); ntfs_toupper_init(); return 0; } #endif /* NetBSD */ static int ntfs_mount ( struct mount *mp, #if defined(__FreeBSD__) char *path, caddr_t data, #else const char *path, void *data, #endif struct nameidata *ndp, struct proc *p ) { int err = 0, flags; struct vnode *devvp; struct ntfs_args args; if (mp->mnt_flag & MNT_GETARGS) { struct ntfsmount *ntmp = VFSTONTFS(mp); if (ntmp == NULL) return EIO; args.fspec = NULL; args.uid = ntmp->ntm_uid; args.gid = ntmp->ntm_gid; args.mode = ntmp->ntm_mode; args.flag = ntmp->ntm_flag; vfs_showexport(mp, &args.export, &ntmp->ntm_export); return copyout(&args, data, sizeof(args)); } /* *** * Mounting non-root file system or updating a file system *** */ /* copy in user arguments*/ err = copyin(data, &args, sizeof (struct ntfs_args)); if (err) return (err); /* can't get arguments*/ /* * If updating, check whether changing from read-only to * read/write; if there is no device name, that's all we do. */ if (mp->mnt_flag & MNT_UPDATE) { /* if not updating name...*/ if (args.fspec == 0) { /* * Process export requests. Jumping to "success" * will return the vfs_export() error code. */ struct ntfsmount *ntm = VFSTONTFS(mp); return (vfs_export(mp, &ntm->ntm_export, &args.export)); } printf("ntfs_mount(): MNT_UPDATE not supported\n"); return (EINVAL); } /* * Not an update, or updating the name: look up the name * and verify that it refers to a sensible block device. */ NDINIT(ndp, LOOKUP, FOLLOW, UIO_USERSPACE, args.fspec, p); err = namei(ndp); if (err) { /* can't get devvp!*/ return (err); } devvp = ndp->ni_vp; if (devvp->v_type != VBLK) { err = ENOTBLK; goto fail; } #ifdef __FreeBSD__ if (bdevsw(devvp->v_rdev) == NULL) { #else if (bdevsw_lookup(devvp->v_rdev) == NULL) { #endif err = ENXIO; goto fail; } if (mp->mnt_flag & MNT_UPDATE) { #if 0 /* ******************** * UPDATE ******************** */ if (devvp != ntmp->um_devvp) { err = EINVAL; /* needs translation */ goto fail; } /* * Update device name only on success */ err = set_statvfs_info(NULL, UIO_USERSPACE, args.fspec, UIO_USERSPACE, mp, p); if (err) goto fail; vrele(devvp); #endif } else { /* ******************** * NEW MOUNT ******************** */ /* * Since this is a new mount, we want the names for * the device and the mount point copied in. If an * error occurs, the mountpoint is discarded by the * upper level code. */ /* Save "last mounted on" info for mount point (NULL pad)*/ err = set_statvfs_info(path, UIO_USERSPACE, args.fspec, UIO_USERSPACE, mp, p); if (err) goto fail; /* * Disallow multiple mounts of the same device. * Disallow mounting of a device that is currently in use * (except for root, which might share swap device for * miniroot). */ err = vfs_mountedon(devvp); if (err) goto fail; if (vcount(devvp) > 1 && devvp != rootvp) { err = EBUSY; goto fail; } if (mp->mnt_flag & MNT_RDONLY) flags = FREAD; else flags = FREAD|FWRITE; err = VOP_OPEN(devvp, flags, FSCRED, p); if (err) goto fail; err = ntfs_mountfs(devvp, mp, &args, p); if (err) { vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY); (void)VOP_CLOSE(devvp, flags, NOCRED, p); VOP_UNLOCK(devvp, 0); goto fail; } } #ifdef __FreeBSD__ dostatvfs: #endif /* * Initialize FS stat information in mount struct; uses both * mp->mnt_stat.f_mntonname and mp->mnt_stat.f_mntfromname * * This code is common to root and non-root mounts */ (void)VFS_STATVFS(mp, &mp->mnt_stat, p); return (err); fail: vrele(devvp); return (err); } /* * Common code for mount and mountroot */ int ntfs_mountfs(devvp, mp, argsp, p) struct vnode *devvp; struct mount *mp; struct ntfs_args *argsp; struct proc *p; { struct buf *bp; struct ntfsmount *ntmp; dev_t dev = devvp->v_rdev; int error, ronly, i; struct vnode *vp; /* * Flush out any old buffers remaining from a previous use. */ vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY); error = vinvalbuf(devvp, V_SAVE, p->p_ucred, p, 0, 0); VOP_UNLOCK(devvp, 0); if (error) return (error); ronly = (mp->mnt_flag & MNT_RDONLY) != 0; bp = NULL; error = bread(devvp, BBLOCK, BBSIZE, NOCRED, &bp); if (error) goto out; ntmp = malloc( sizeof *ntmp, M_NTFSMNT, M_WAITOK ); bzero( ntmp, sizeof *ntmp ); bcopy( bp->b_data, &ntmp->ntm_bootfile, sizeof(struct bootfile) ); brelse( bp ); bp = NULL; if (strncmp(ntmp->ntm_bootfile.bf_sysid, NTFS_BBID, NTFS_BBIDLEN)) { error = EINVAL; dprintf(("ntfs_mountfs: invalid boot block\n")); goto out; } { int8_t cpr = ntmp->ntm_mftrecsz; if( cpr > 0 ) ntmp->ntm_bpmftrec = ntmp->ntm_spc * cpr; else ntmp->ntm_bpmftrec = (1 << (-cpr)) / ntmp->ntm_bps; } dprintf(("ntfs_mountfs(): bps: %d, spc: %d, media: %x, mftrecsz: %d (%d sects)\n", ntmp->ntm_bps,ntmp->ntm_spc,ntmp->ntm_bootfile.bf_media, ntmp->ntm_mftrecsz,ntmp->ntm_bpmftrec)); dprintf(("ntfs_mountfs(): mftcn: 0x%x|0x%x\n", (u_int32_t)ntmp->ntm_mftcn,(u_int32_t)ntmp->ntm_mftmirrcn)); ntmp->ntm_mountp = mp; ntmp->ntm_dev = dev; ntmp->ntm_devvp = devvp; ntmp->ntm_uid = argsp->uid; ntmp->ntm_gid = argsp->gid; ntmp->ntm_mode = argsp->mode; ntmp->ntm_flag = argsp->flag; mp->mnt_data = ntmp; /* set file name encode/decode hooks XXX utf-8 only for now */ ntmp->ntm_wget = ntfs_utf8_wget; ntmp->ntm_wput = ntfs_utf8_wput; ntmp->ntm_wcmp = ntfs_utf8_wcmp; dprintf(("ntfs_mountfs(): case-%s,%s uid: %d, gid: %d, mode: %o\n", (ntmp->ntm_flag & NTFS_MFLAG_CASEINS)?"insens.":"sens.", (ntmp->ntm_flag & NTFS_MFLAG_ALLNAMES)?" allnames,":"", ntmp->ntm_uid, ntmp->ntm_gid, ntmp->ntm_mode)); /* * We read in some system nodes to do not allow * reclaim them and to have everytime access to them. */ { int pi[3] = { NTFS_MFTINO, NTFS_ROOTINO, NTFS_BITMAPINO }; for (i=0; i<3; i++) { 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]]); 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;intm_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;intm_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); return (error); } static int ntfs_start ( struct mount *mp, int flags, struct proc *p ) { return (0); } static int ntfs_unmount( struct mount *mp, int mntflags, struct proc *p) { 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;intm_sysvn[i]) && (ntmp->ntm_sysvn[i]->v_usecount > 1)) return (EBUSY); /* Dereference all system vnodes */ for(i=0;intm_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, p, 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, p); 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 proc *p) { 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;intm_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, struct ucred *cred, struct proc *p) { /*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 *ntfhp = (struct ntfid *)fhp; int error; ddprintf(("ntfs_fhtovp(): %s: %d\n", mp->mnt_stat.f_mntonname, ntfhp->ntfid_ino)); error = ntfs_vgetex(mp, ntfhp->ntfid_ino, ntfhp->ntfid_attr, NULL, LK_EXCLUSIVE | LK_RETRY, 0, curproc, vpp); /* XXX */ 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) { struct ntnode *ntp; struct ntfid *ntfhp; struct fnode *fn; ddprintf(("ntfs_fhtovp(): %s: %p\n", vp->v_mount->mnt_stat.f_mntonname, vp)); fn = VTOF(vp); ntp = VTONT(vp); ntfhp = (struct ntfid *)fhp; ntfhp->ntfid_len = sizeof(struct ntfid); ntfhp->ntfid_ino = ntp->i_number; ntfhp->ntfid_attr = fn->f_attrtype; #ifdef notyet ntfhp->ntfid_gen = ntp->i_gen; #endif return (0); } 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; struct ntfsmount *ntmp; struct ntnode *ip; struct fnode *fp; struct vnode *vp; enum vtype f_type = VBAD; dprintf(("ntfs_vgetex: ino: %d, attr: 0x%x:%s, lkf: 0x%lx, f: 0x%lx\n", 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: %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 == 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: %d\n", vp,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, curproc, vpp); /* XXX */ } #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, NULL, ntfs_mountroot, ntfs_checkexp, (int (*)(struct mount *, struct vnode *, struct timespec *)) eopnotsupp, vfs_stdextattrctl, ntfs_vnodeopv_descs, }; VFS_ATTACH(ntfs_vfsops); #endif