コード例 #1
0
static int
nsmb_dev_close(struct cdev *dev, int flag, int fmt, struct thread *td)
{
	struct smb_dev *sdp;
	struct smb_vc *vcp;
	struct smb_share *ssp;
	struct smb_cred *scred;
	int s;

	scred = malloc(sizeof(struct smb_cred), M_NSMBDEV, M_WAITOK);
	SMB_CHECKMINOR(dev);
	s = splimp();
	if ((sdp->sd_flags & NSMBFL_OPEN) == 0) {
		splx(s);
		free(scred, M_NSMBDEV);
		return EBADF;
	}
	smb_makescred(scred, td, NULL);
	ssp = sdp->sd_share;
	if (ssp != NULL)
		smb_share_rele(ssp, scred);
	vcp = sdp->sd_vc;
	if (vcp != NULL)
		smb_vc_rele(vcp, scred);
/*
	smb_flushq(&sdp->sd_rqlist);
	smb_flushq(&sdp->sd_rplist);
*/
	dev->si_drv1 = NULL;
	free(sdp, M_NSMBDEV);
	destroy_dev_sched(dev);
	splx(s);
	free(scred, M_NSMBDEV);
	return 0;
}
コード例 #2
0
ファイル: smb_dev.c プロジェクト: MarginC/kame
int
nsmb_dev_close(dev_t dev, int flag, int fmt, struct proc *p)
{
	struct smb_dev *sdp;
	struct smb_vc *vcp;
	struct smb_share *ssp;
	struct smb_cred scred;
	int s;

	SMB_CHECKMINOR(dev);
	s = splnet();
	if ((sdp->sd_flags & NSMBFL_OPEN) == 0) {
		splx(s);
		return EBADF;
	}
	smb_makescred(&scred, p, NULL);
	ssp = sdp->sd_share;
	if (ssp != NULL)
		smb_share_rele(ssp, &scred);
	vcp = sdp->sd_vc;
	if (vcp != NULL)
		smb_vc_rele(vcp, &scred);
/*
	smb_flushq(&sdp->sd_rqlist);
	smb_flushq(&sdp->sd_rplist);
*/
	smb_devtbl[minor(dev)] = NULL;
	free(sdp, M_SMBDATA);
#ifndef __NetBSD__
	destroy_dev(dev);
#endif
	splx(s);
	return 0;
}
コード例 #3
0
/*
 * smbfs_statfs call
 */
int
smbfs_statfs(struct mount *mp, struct statfs *sbp, struct ucred *cred)
{
	struct smbmount *smp = VFSTOSMBFS(mp);
	struct smbnode *np = smp->sm_root;
	struct smb_share *ssp = smp->sm_share;
	struct smb_cred scred;
	int error = 0;

	if (np == NULL)
		return EINVAL;
	
	sbp->f_iosize = SSTOVC(ssp)->vc_txmax;		/* optimal transfer block size */
	sbp->f_spare2 = 0;			/* placeholder */
	smb_makescred(&scred, curthread, cred);

	if (SMB_DIALECT(SSTOVC(ssp)) >= SMB_DIALECT_LANMAN2_0)
		error = smbfs_smb_statfs2(ssp, sbp, &scred);
	else
		error = smbfs_smb_statfs(ssp, sbp, &scred);
	if (error)
		return error;
	sbp->f_flags = 0;		/* copy of mount exported flags */
	if (sbp != &mp->mnt_stat) {
		sbp->f_fsid = mp->mnt_stat.f_fsid;	/* file system id */
		sbp->f_owner = mp->mnt_stat.f_owner;	/* user that mounted the filesystem */
		sbp->f_type = mp->mnt_vfc->vfc_typenum;	/* type of filesystem */
		bcopy(mp->mnt_stat.f_mntfromname, sbp->f_mntfromname, MNAMELEN);
	}
	strncpy(sbp->f_fstypename, mp->mnt_vfc->vfc_name, MFSNAMELEN);
	return 0;
}
コード例 #4
0
ファイル: smbfs_io.c プロジェクト: ChaosJohn/freebsd
int
smbfs_writevnode(struct vnode *vp, struct uio *uiop,
	struct ucred *cred, int ioflag)
{
	struct smbmount *smp = VTOSMBFS(vp);
	struct smbnode *np = VTOSMB(vp);
	struct smb_cred *scred;
	struct thread *td;
	int error = 0;

	if (vp->v_type != VREG) {
		SMBERROR("vn types other than VREG unsupported !\n");
		return EIO;
	}
	SMBVDEBUG("ofs=%jd,resid=%zd\n", (intmax_t)uiop->uio_offset, 
	    uiop->uio_resid);
	if (uiop->uio_offset < 0)
		return EINVAL;
/*	if (uiop->uio_offset + uiop->uio_resid > smp->nm_maxfilesize)
		return (EFBIG);*/
	td = uiop->uio_td;
	if (ioflag & (IO_APPEND | IO_SYNC)) {
		if (np->n_flag & NMODIFIED) {
			smbfs_attr_cacheremove(vp);
			error = smbfs_vinvalbuf(vp, td);
			if (error)
				return error;
		}
		if (ioflag & IO_APPEND) {
#ifdef notyet
			/*
			 * File size can be changed by another client
			 */
			smbfs_attr_cacheremove(vp);
			error = VOP_GETATTR(vp, &vattr, cred);
			if (error) return (error);
#endif
			uiop->uio_offset = np->n_size;
		}
	}
	if (uiop->uio_resid == 0)
		return 0;

	if (vn_rlimit_fsize(vp, uiop, td))
		return (EFBIG);
	
	scred = smbfs_malloc_scred();
	smb_makescred(scred, td, cred);
	error = smb_write(smp->sm_share, np->n_fid, uiop, scred);
	smbfs_free_scred(scred);
	SMBVDEBUG("after: ofs=%jd,resid=%zd\n", (intmax_t)uiop->uio_offset, 
	    uiop->uio_resid);
	if (!error) {
		if (uiop->uio_offset > np->n_size) {
			np->n_size = uiop->uio_offset;
			vnode_pager_setsize(vp, np->n_size);
		}
	}
	return error;
}
コード例 #5
0
int
smbfs_readvnode(struct vnode *vp, struct uio *uiop, struct ucred *cred)
{
	struct smbmount *smp = VFSTOSMBFS(vp->v_mount);
	struct smbnode *np = VTOSMB(vp);
	struct thread *td;
	struct vattr vattr;
	struct smb_cred scred;
	int error, lks;

	/*
	 * Protect against method which is not supported for now
	 */
	if (uiop->uio_segflg == UIO_NOCOPY)
		return EOPNOTSUPP;

	if (vp->v_type != VREG && vp->v_type != VDIR) {
		SMBFSERR("vn types other than VREG or VDIR are unsupported !\n");
		return EIO;
	}
	if (uiop->uio_resid == 0)
		return 0;
	if (uiop->uio_offset < 0)
		return EINVAL;
/*	if (uiop->uio_offset + uiop->uio_resid > smp->nm_maxfilesize)
		return EFBIG;*/
	td = uiop->uio_td;
	if (vp->v_type == VDIR) {
		lks = LK_EXCLUSIVE;/*lockstatus(vp->v_vnlock, td);*/
		if (lks == LK_SHARED)
			vn_lock(vp, LK_UPGRADE | LK_RETRY, td);
		error = smbfs_readvdir(vp, uiop, cred);
		if (lks == LK_SHARED)
			vn_lock(vp, LK_DOWNGRADE | LK_RETRY, td);
		return error;
	}

/*	biosize = SSTOCN(smp->sm_share)->sc_txmax;*/
	if (np->n_flag & NMODIFIED) {
		smbfs_attr_cacheremove(vp);
		error = VOP_GETATTR(vp, &vattr, cred, td);
		if (error)
			return error;
		np->n_mtime.tv_sec = vattr.va_mtime.tv_sec;
	} else {
		error = VOP_GETATTR(vp, &vattr, cred, td);
		if (error)
			return error;
		if (np->n_mtime.tv_sec != vattr.va_mtime.tv_sec) {
			error = smbfs_vinvalbuf(vp, td);
			if (error)
				return error;
			np->n_mtime.tv_sec = vattr.va_mtime.tv_sec;
		}
	}
	smb_makescred(&scred, td, cred);
	return smb_read(smp->sm_share, np->n_fid, uiop, &scred);
}
コード例 #6
0
int
smbfs_writevnode(struct vnode *vp, struct uio *uiop,
		 struct ucred *cred, int ioflag)
{
	struct thread *td;
	struct smbmount *smp = VTOSMBFS(vp);
	struct smbnode *np = VTOSMB(vp);
	struct smb_cred scred;
	int error = 0;

	if (vp->v_type != VREG) {
		SMBERROR("vn types other than VREG unsupported !\n");
		return EIO;
	}
	SMBVDEBUG("ofs=%d,resid=%d\n",(int)uiop->uio_offset, uiop->uio_resid);
	if (uiop->uio_offset < 0)
		return EINVAL;
	td = uiop->uio_td;
	if (ioflag & (IO_APPEND | IO_SYNC)) {
		if (np->n_flag & NMODIFIED) {
			smbfs_attr_cacheremove(vp);
			error = smbfs_vinvalbuf(vp, V_SAVE, 1);
			if (error)
				return error;
		}
		if (ioflag & IO_APPEND) {
#if 0 /* notyet */
			/*
			 * File size can be changed by another client
			 */
			smbfs_attr_cacheremove(vp);
			error = VOP_GETATTR(vp, &vattr);
			if (error) return (error);
#endif
			uiop->uio_offset = np->n_size;
		}
	}
	if (uiop->uio_resid == 0)
		return 0;
	if (td->td_proc &&
	    uiop->uio_offset + uiop->uio_resid >
	    td->td_proc->p_rlimit[RLIMIT_FSIZE].rlim_cur) {
		lwpsignal(td->td_proc, td->td_lwp, SIGXFSZ);
		return EFBIG;
	}
	smb_makescred(&scred, td, cred);
	error = smb_write(smp->sm_share, np->n_fid, uiop, &scred);
	SMBVDEBUG("after: ofs=%d,resid=%d\n",(int)uiop->uio_offset, uiop->uio_resid);
	if (!error) {
		if (uiop->uio_offset > np->n_size) {
			np->n_size = uiop->uio_offset;
			vnode_pager_setsize(vp, np->n_size);
		}
	}
	return error;
}
コード例 #7
0
ファイル: smbfs_vfsops.c プロジェクト: derekmarcotte/freebsd
/* Unmount the filesystem described by mp. */
static int
smbfs_unmount(struct mount *mp, int mntflags)
{
	struct thread *td;
	struct smbmount *smp = VFSTOSMBFS(mp);
	struct smb_cred *scred;
	struct smb_dev *dev;
	int error, flags;

	SMBVDEBUG("smbfs_unmount: flags=%04x\n", mntflags);
	td = curthread;
	flags = 0;
	if (mntflags & MNT_FORCE)
		flags |= FORCECLOSE;
	/*
	 * Keep trying to flush the vnode list for the mount while 
	 * some are still busy and we are making progress towards
	 * making them not busy. This is needed because smbfs vnodes
	 * reference their parent directory but may appear after their
	 * parent in the list; one pass over the vnode list is not
	 * sufficient in this case.
	 */
	do {
		smp->sm_didrele = 0;
		/* There is 1 extra root vnode reference from smbfs_mount(). */
		error = vflush(mp, 1, flags, td);
	} while (error == EBUSY && smp->sm_didrele != 0);
	if (error)
		return error;
	scred = smbfs_malloc_scred();
	smb_makescred(scred, td, td->td_ucred);
	error = smb_share_lock(smp->sm_share);
	if (error)
		goto out;
	smb_share_put(smp->sm_share, scred);
	SMB_LOCK();
	dev = smp->sm_dev;
	if (!dev)
		panic("No private data for mount point");
	sdp_trydestroy(dev);
	mp->mnt_data = NULL;
	SMB_UNLOCK();
	free(smp, M_SMBFSDATA);
	MNT_ILOCK(mp);
	mp->mnt_flag &= ~MNT_LOCAL;
	MNT_IUNLOCK(mp);
out:
	smbfs_free_scred(scred);
	return error;
}
コード例 #8
0
ファイル: smbfs_vnops.c プロジェクト: ryo/netbsd-src
/*
 * Close called.
 */
int
smbfs_close(void *v)
{
	struct vop_close_args /* {
		struct vnodeop_desc *a_desc;
		struct vnode *a_vp;
		int  a_fflag;
		kauth_cred_t a_cred;
	} */ *ap = v;
	int error;
	struct lwp *l = curlwp;
	struct vnode *vp = ap->a_vp;
	struct smbnode *np = VTOSMB(vp);

	/* Flush all file data */
	error = smbfs_vinvalbuf(vp, V_SAVE, ap->a_cred, l, 1);
	if (error)
		return (error);

	/*
	 * We must close the directory lookup context now, so that
	 * later directory changes would be properly detected.
	 * Ideally, the lookup routines should handle such case, and
	 * the context would be removed only in smbfs_inactive().
	 */
	if (vp->v_type == VDIR && (np->n_flag & NOPEN) != 0) {
		struct smb_share *ssp = np->n_mount->sm_share;
		struct smb_cred scred;

		smb_makescred(&scred, l, ap->a_cred);

		if (np->n_dirseq != NULL) {
			smbfs_findclose(np->n_dirseq, &scred);
			np->n_dirseq = NULL;
		}

		if (SMB_CAPS(SSTOVC(ssp)) & SMB_CAP_NT_SMBS)
			smbfs_smb_close(ssp, np->n_fid, &np->n_mtime, &scred);

		np->n_flag &= ~NOPEN;
		smbfs_attr_cacheremove(vp);
	}

	return (0);
}
コード例 #9
0
/* Unmount the filesystem described by mp. */
int
smbfs_unmount(struct mount *mp, int mntflags)
{
	struct lwp *l = curlwp;
	struct smbmount *smp = VFSTOSMBFS(mp);
	struct smb_cred scred;
	struct vnode *smbfs_rootvp = SMBTOV(smp->sm_root);
	int error, flags;

	SMBVDEBUG("smbfs_unmount: flags=%04x\n", mntflags);
	flags = 0;
	if (mntflags & MNT_FORCE)
		flags |= FORCECLOSE;

	if (smbfs_rootvp->v_usecount > 1 && (mntflags & MNT_FORCE) == 0)
		return EBUSY;

	/* Flush all vnodes.
	 * Keep trying to flush the vnode list for the mount while 
	 * some are still busy and we are making progress towards
	 * making them not busy. This is needed because smbfs vnodes
	 * reference their parent directory but may appear after their
	 * parent in the list; one pass over the vnode list is not
	 * sufficient in this case. */
	do {
		smp->sm_didrele = 0;
		error = vflush(mp, smbfs_rootvp, flags);
	} while (error == EBUSY && smp->sm_didrele != 0);
	if (error)
		return error;

	vgone(smbfs_rootvp);

	smb_makescred(&scred, l, l->l_cred);
	smb_share_lock(smp->sm_share);
	smb_share_put(smp->sm_share, &scred);
	mp->mnt_data = NULL;

	hashdone(smp->sm_hash, HASH_LIST, smp->sm_hashlen);
	mutex_destroy(&smp->sm_hashlock);
	free(smp, M_SMBFSDATA);
	return 0;
}
コード例 #10
0
int
smbfs_mkdir(void *v)
{
	struct vop_mkdir_v3_args /* {
		struct vnode *a_dvp;
		struct vnode **a_vpp;
		struct componentname *a_cnp;
		struct vattr *a_vap;
	} */ *ap = v;
	struct vnode *dvp = ap->a_dvp;
/*	struct vattr *vap = ap->a_vap;*/
	struct vnode *vp;
	struct componentname *cnp = ap->a_cnp;
	struct smbnode *dnp = VTOSMB(dvp);
	struct smb_cred scred;
	struct smbfattr fattr;
	const char *name = cnp->cn_nameptr;
	int len = cnp->cn_namelen;
	int error;

	if ((name[0] == '.') && ((len == 1) || ((len == 2) && (name[1] == '.')))){
		error = EEXIST;
		goto out;
	}

	smb_makescred(&scred, curlwp, cnp->cn_cred);
	error = smbfs_smb_mkdir(dnp, name, len, &scred);
	if (error)
		goto out;
	error = smbfs_smb_lookup(dnp, name, len, &fattr, &scred);
	if (error)
		goto out;
	error = smbfs_nget(VTOVFS(dvp), dvp, name, len, &fattr, &vp);
	if (error)
		goto out;
	VOP_UNLOCK(vp);
	*ap->a_vpp = vp;

 out:
	VN_KNOTE(dvp, NOTE_WRITE | NOTE_LINK);

	return (error);
}
コード例 #11
0
/* Unmount the filesystem described by mp. */
static int
smbfs_unmount(struct mount *mp, int mntflags)
{
	struct smbmount *smp = VFSTOSMBFS(mp);
	struct smb_cred scred;
	int error, flags;

	SMBVDEBUG("smbfs_unmount: flags=%04x\n", mntflags);
	flags = 0;
	if (mntflags & MNT_FORCE)
		flags |= FORCECLOSE;
	/*
	 * Keep trying to flush the vnode list for the mount while 
	 * some are still busy and we are making progress towards
	 * making them not busy. This is needed because smbfs vnodes
	 * reference their parent directory but may appear after their
	 * parent in the list; one pass over the vnode list is not
	 * sufficient in this case.
	 */
	do {
		smp->sm_didrele = 0;
		/* There is 1 extra root vnode reference from smbfs_mount(). */
		error = vflush(mp, 1, flags);
	} while (error == EBUSY && smp->sm_didrele != 0);
	if (error)
		return error;
	smb_makescred(&scred, curthread, smp->sm_cred);
	smb_share_put(smp->sm_share, &scred);
	mp->mnt_data = (qaddr_t)0;

	if (smp->sm_cred)
		crfree(smp->sm_cred);
	if (smp->sm_hash)
		kfree(smp->sm_hash, M_SMBFSHASH);
	lockdestroy(&smp->sm_hashlock);
#ifdef SMBFS_USEZONE
	zfree(smbfsmount_zone, smp);
#else
	kfree(smp, M_SMBFSDATA);
#endif
	mp->mnt_flag &= ~MNT_LOCAL;
	return error;
}
コード例 #12
0
/*
 * smbfs_create call
 * Create a regular file. On entry the directory to contain the file being
 * created is locked.  We must release before we return.
 */
int
smbfs_create(void *v)
{
	struct vop_create_v3_args /* {
		struct vnode *a_dvp;
		struct vnode **a_vpp;
		struct componentname *a_cnp;
		struct vattr *a_vap;
	} */ *ap = v;
	struct vnode *dvp = ap->a_dvp;
	struct vattr *vap = ap->a_vap;
	struct componentname *cnp = ap->a_cnp;
	struct smbnode *dnp = VTOSMB(dvp);
	struct smbfattr fattr;
	struct smb_cred scred;
	const char *name = cnp->cn_nameptr;
	int nmlen = cnp->cn_namelen;
	int error = EINVAL;


	if (vap->va_type != VREG)
		goto out;

	smb_makescred(&scred, curlwp, cnp->cn_cred);
	error = smbfs_smb_create(dnp, name, nmlen, &scred);
	if (error)
		goto out;

	error = smbfs_smb_lookup(dnp, name, nmlen, &fattr, &scred);
	if (error)
		goto out;
	error = smbfs_nget(VTOVFS(dvp), dvp, name, nmlen, &fattr, ap->a_vpp);
	if (error)
		goto out;
	VOP_UNLOCK(*ap->a_vpp);

	cache_enter(dvp, *ap->a_vpp, cnp->cn_nameptr, cnp->cn_namelen,
		    cnp->cn_flags);

  out:
	VN_KNOTE(dvp, NOTE_WRITE);
	return (error);
}
コード例 #13
0
/*
 * smbfs_statvfs call
 */
int
smbfs_statvfs(struct mount *mp, struct statvfs *sbp)
{
	struct lwp *l = curlwp;
	struct smbmount *smp = VFSTOSMBFS(mp);
	struct smb_share *ssp = smp->sm_share;
	struct smb_cred scred;
	int error = 0;

	sbp->f_iosize = SSTOVC(ssp)->vc_txmax;		/* optimal transfer block size */
	smb_makescred(&scred, l, l->l_cred);

	error = smbfs_smb_statvfs(ssp, sbp, &scred);
	if (error)
		return error;

	sbp->f_flag = 0;		/* copy of mount exported flags */
	sbp->f_owner = mp->mnt_stat.f_owner;	/* user that mounted the filesystem */
	copy_statvfs_info(sbp, mp);
	return 0;
}
コード例 #14
0
/* 
 * Return locked root vnode of a filesystem
 */
static int
smbfs_root(struct mount *mp, struct vnode **vpp)
{
	struct thread *td = curthread;	/* XXX */
	struct smbmount *smp = VFSTOSMBFS(mp);
	struct vnode *vp;
	struct smbnode *np;
	struct smbfattr fattr;
	struct ucred *cred;
	struct smb_cred scred;
	int error;

	if (smp == NULL) {
		SMBERROR("smp == NULL (bug in umount)\n");
		return EINVAL;
	}
	if (smp->sm_root) {
		*vpp = SMBTOV(smp->sm_root);
		return vget(*vpp, LK_EXCLUSIVE | LK_RETRY);
	}
	if (td->td_proc)
		cred = td->td_proc->p_ucred;
	else
		cred = proc0.p_ucred;

	smb_makescred(&scred, td, cred);
	error = smbfs_smb_lookup(NULL, NULL, 0, &fattr, &scred);
	if (error)
		return error;
	error = smbfs_nget(mp, NULL, "TheRooT", 7, &fattr, &vp);
	if (error)
		return error;
	vsetflags(vp, VROOT);
	np = VTOSMB(vp);
	smp->sm_root = np;
	*vpp = vp;
	return 0;
}
コード例 #15
0
ファイル: smbfs_vnops.c プロジェクト: ryo/netbsd-src
/*
 * smbfs_remove directory call
 */
int
smbfs_rmdir(void *v)
{
	struct vop_rmdir_args /* {
		struct vnode *a_dvp;
		struct vnode *a_vp;
		struct componentname *a_cnp;
	} */ *ap = v;
	struct vnode *vp = ap->a_vp;
	struct vnode *dvp = ap->a_dvp;
	struct componentname *cnp = ap->a_cnp;
/*	struct smbmount *smp = VTOSMBFS(vp);*/
	struct smbnode *dnp = VTOSMB(dvp);
	struct smbnode *np = VTOSMB(vp);
	struct smb_cred scred;
	int error;

	if (dvp == vp) {
		vrele(dvp);
		vput(dvp);
		return (EINVAL);
	}

	smb_makescred(&scred, curlwp, cnp->cn_cred);
	error = smbfs_smb_rmdir(np, &scred);
	if (error == 0)
		np->n_flag |= NGONE;
	dnp->n_flag |= NMODIFIED;
	smbfs_attr_cacheremove(dvp);
	VN_KNOTE(dvp, NOTE_WRITE | NOTE_LINK);
	VN_KNOTE(vp, NOTE_DELETE);
	cache_purge(dvp);
	cache_purge(vp);
	vput(vp);
	vput(dvp);

	return (error);
}
コード例 #16
0
/*
 * Get root vnode of the smbfs filesystem, and store it in sm_root.
 */
static int
smbfs_setroot(struct mount *mp)
{
	struct smbmount *smp = VFSTOSMBFS(mp);
	struct vnode *vp;
	struct smbfattr fattr;
	struct lwp *l = curlwp;
	kauth_cred_t cred = l->l_cred;
	struct smb_cred scred;
	int error;

	KASSERT(smp->sm_root == NULL);

	smb_makescred(&scred, l, cred);
	error = smbfs_smb_lookup(NULL, NULL, 0, &fattr, &scred);
	if (error)
		return error;
	error = smbfs_nget(mp, NULL, "TheRooT", 7, &fattr, &vp);
	if (error)
		return error;

	/*
	 * Someone might have already set sm_root while we slept
	 * in smb_lookup or malloc/getnewvnode.
	 */
	if (smp->sm_root)
		vput(vp);
	else {
		vp->v_vflag |= VV_ROOT;
		smp->sm_root = VTOSMB(vp);

		/* Keep reference, but unlock */
		VOP_UNLOCK(vp, 0);
	}

	return (0);
}
コード例 #17
0
ファイル: smbfs_vnops.c プロジェクト: ryo/netbsd-src
int
smbfs_remove(void *v)
{
	struct vop_remove_args /* {
		struct vnodeop_desc *a_desc;
		struct vnode * a_dvp;
		struct vnode * a_vp;
		struct componentname * a_cnp;
	} */ *ap = v;
	struct vnode *vp = ap->a_vp;
	struct vnode *dvp = ap->a_dvp;
	struct componentname *cnp = ap->a_cnp;
	struct smbnode *np = VTOSMB(vp);
	struct smb_cred scred;
	int error;

	if (vp->v_type == VDIR || (np->n_flag & NOPEN) != 0
	    || vp->v_usecount != 1) {
		/* XXX Eventually should do something along NFS sillyrename */
		error = EPERM;
	} else {
		smb_makescred(&scred, curlwp, cnp->cn_cred);
		error = smbfs_smb_delete(np, &scred);
	}
	if (error == 0)
		np->n_flag |= NGONE;

	VN_KNOTE(ap->a_vp, NOTE_DELETE);
	VN_KNOTE(ap->a_dvp, NOTE_WRITE);
	if (dvp == vp)
		vrele(vp);
	else
		vput(vp);
	vput(dvp);
	return (error);
}
コード例 #18
0
ファイル: smbfs_vnops.c プロジェクト: ryo/netbsd-src
/*
 * smbfs_getattr call from vfs.
 */
int
smbfs_getattr(void *v)
{
	struct vop_getattr_args /* {
		struct vnode *a_vp;
		struct vattr *a_vap;
		kauth_cred_t a_cred;
	} */ *ap = v;
	struct vnode *vp = ap->a_vp;
	struct smbnode *np = VTOSMB(vp);
	struct vattr *va=ap->a_vap;
	struct smbfattr fattr;
	struct smb_cred scred;
	u_quad_t oldsize;
	int error;

	SMBVDEBUG("%p: '%.*s' isroot %d\n", vp,
		(int) np->n_nmlen, np->n_name, (vp->v_vflag & VV_ROOT) != 0);

	if ((error = smbfs_attr_cachelookup(vp, va)) == 0)
		return (0);

	SMBVDEBUG0("not in the cache\n");
	smb_makescred(&scred, curlwp, ap->a_cred);
	oldsize = np->n_size;
	error = smbfs_smb_lookup(np, NULL, 0, &fattr, &scred);
	if (error) {
		SMBVDEBUG("error %d\n", error);
		return error;
	}
	smbfs_attr_cacheenter(vp, &fattr);
	smbfs_attr_cachelookup(vp, va);
	if ((np->n_flag & NOPEN) != 0)
		np->n_size = oldsize;
	return 0;
}
コード例 #19
0
ファイル: smbfs_vfsops.c プロジェクト: derekmarcotte/freebsd
/* 
 * Return locked root vnode of a filesystem
 */
static int
smbfs_root(struct mount *mp, int flags, struct vnode **vpp)
{
	struct smbmount *smp = VFSTOSMBFS(mp);
	struct vnode *vp;
	struct smbnode *np;
	struct smbfattr fattr;
	struct thread *td;
	struct ucred *cred;
	struct smb_cred *scred;
	int error;

	td = curthread;
	cred = td->td_ucred;

	if (smp->sm_root) {
		*vpp = SMBTOV(smp->sm_root);
		return vget(*vpp, LK_EXCLUSIVE | LK_RETRY, td);
	}
	scred = smbfs_malloc_scred();
	smb_makescred(scred, td, cred);
	error = smbfs_smb_lookup(NULL, NULL, 0, &fattr, scred);
	if (error)
		goto out;
	error = smbfs_nget(mp, NULL, NULL, 0, &fattr, &vp);
	if (error)
		goto out;
	ASSERT_VOP_LOCKED(vp, "smbfs_root");
	vp->v_vflag |= VV_ROOT;
	np = VTOSMB(vp);
	smp->sm_root = np;
	*vpp = vp;
out:
	smbfs_free_scred(scred);
	return error;
}
コード例 #20
0
ファイル: smbfs_io.c プロジェクト: ChaosJohn/freebsd
/*
 * Do an I/O operation to/from a cache block.
 */
int
smbfs_doio(struct vnode *vp, struct buf *bp, struct ucred *cr, struct thread *td)
{
	struct smbmount *smp = VFSTOSMBFS(vp->v_mount);
	struct smbnode *np = VTOSMB(vp);
	struct uio *uiop;
	struct iovec io;
	struct smb_cred *scred;
	int error = 0;

	uiop = malloc(sizeof(struct uio), M_SMBFSDATA, M_WAITOK);
	uiop->uio_iov = &io;
	uiop->uio_iovcnt = 1;
	uiop->uio_segflg = UIO_SYSSPACE;
	uiop->uio_td = td;

	scred = smbfs_malloc_scred();
	smb_makescred(scred, td, cr);

	if (bp->b_iocmd == BIO_READ) {
	    io.iov_len = uiop->uio_resid = bp->b_bcount;
	    io.iov_base = bp->b_data;
	    uiop->uio_rw = UIO_READ;
	    switch (vp->v_type) {
	      case VREG:
		uiop->uio_offset = ((off_t)bp->b_blkno) * DEV_BSIZE;
		error = smb_read(smp->sm_share, np->n_fid, uiop, scred);
		if (error)
			break;
		if (uiop->uio_resid) {
			int left = uiop->uio_resid;
			int nread = bp->b_bcount - left;
			if (left > 0)
			    bzero((char *)bp->b_data + nread, left);
		}
		break;
	    default:
		printf("smbfs_doio:  type %x unexpected\n",vp->v_type);
		break;
	    };
	    if (error) {
		bp->b_error = error;
		bp->b_ioflags |= BIO_ERROR;
	    }
	} else { /* write */
	    if (((bp->b_blkno * DEV_BSIZE) + bp->b_dirtyend) > np->n_size)
		bp->b_dirtyend = np->n_size - (bp->b_blkno * DEV_BSIZE);

	    if (bp->b_dirtyend > bp->b_dirtyoff) {
		io.iov_len = uiop->uio_resid = bp->b_dirtyend - bp->b_dirtyoff;
		uiop->uio_offset = ((off_t)bp->b_blkno) * DEV_BSIZE + bp->b_dirtyoff;
		io.iov_base = (char *)bp->b_data + bp->b_dirtyoff;
		uiop->uio_rw = UIO_WRITE;
		error = smb_write(smp->sm_share, np->n_fid, uiop, scred);

		/*
		 * For an interrupted write, the buffer is still valid
		 * and the write hasn't been pushed to the server yet,
		 * so we can't set BIO_ERROR and report the interruption
		 * by setting B_EINTR. For the B_ASYNC case, B_EINTR
		 * is not relevant, so the rpc attempt is essentially
		 * a noop.  For the case of a V3 write rpc not being
		 * committed to stable storage, the block is still
		 * dirty and requires either a commit rpc or another
		 * write rpc with iomode == NFSV3WRITE_FILESYNC before
		 * the block is reused. This is indicated by setting
		 * the B_DELWRI and B_NEEDCOMMIT flags.
		 */
		if (error == EINTR
		    || (!error && (bp->b_flags & B_NEEDCOMMIT))) {
			int s;

			s = splbio();
			bp->b_flags &= ~(B_INVAL|B_NOCACHE);
			if ((bp->b_flags & B_ASYNC) == 0)
			    bp->b_flags |= B_EINTR;
			if ((bp->b_flags & B_PAGING) == 0) {
			    bdirty(bp);
			    bp->b_flags &= ~B_DONE;
			}
			if ((bp->b_flags & B_ASYNC) == 0)
			    bp->b_flags |= B_EINTR;
			splx(s);
		} else {
			if (error) {
				bp->b_ioflags |= BIO_ERROR;
				bp->b_error = error;
			}
			bp->b_dirtyoff = bp->b_dirtyend = 0;
		}
	    } else {
		bp->b_resid = 0;
		bufdone(bp);
		free(uiop, M_SMBFSDATA);
		smbfs_free_scred(scred);
		return 0;
	    }
	}
	bp->b_resid = uiop->uio_resid;
	bufdone(bp);
	free(uiop, M_SMBFSDATA);
	smbfs_free_scred(scred);
	return error;
}
コード例 #21
0
ファイル: smbfs_vnops.c プロジェクト: ryo/netbsd-src
/*
 * smbfs_file rename call
 */
int
smbfs_rename(void *v)
{
	struct vop_rename_args  /* {
		struct vnode *a_fdvp;
		struct vnode *a_fvp;
		struct componentname *a_fcnp;
		struct vnode *a_tdvp;
		struct vnode *a_tvp;
		struct componentname *a_tcnp;
	} */ *ap = v;
	struct vnode *fvp = ap->a_fvp;
	struct vnode *tvp = ap->a_tvp;
	struct vnode *fdvp = ap->a_fdvp;
	struct vnode *tdvp = ap->a_tdvp;
	struct componentname *tcnp = ap->a_tcnp;
/*	struct componentname *fcnp = ap->a_fcnp;*/
	struct smb_cred scred;
#ifdef notyet
	u_int16_t flags = 6;
#endif
	int error=0;

	/* Check for cross-device rename */
	if ((fvp->v_mount != tdvp->v_mount) ||
	    (tvp && (fvp->v_mount != tvp->v_mount))) {
		error = EXDEV;
		goto out;
	}

	if (tvp && tvp->v_usecount > 1) {
		error = EBUSY;
		goto out;
	}
#ifdef notnow
	flags = 0x10;			/* verify all writes */
	if (fvp->v_type == VDIR) {
		flags |= 2;
	} else if (fvp->v_type == VREG) {
		flags |= 1;
	} else {
		error = EINVAL;
		goto out;
	}
#endif
	smb_makescred(&scred, curlwp, tcnp->cn_cred);
	/*
	 * It seems that Samba doesn't implement SMB_COM_MOVE call...
	 */
#ifdef notnow
	if (SMB_DIALECT(SSTOCN(smp->sm_share)) >= SMB_DIALECT_LANMAN1_0) {
		error = smbfs_smb_move(VTOSMB(fvp), VTOSMB(tdvp),
		    tcnp->cn_nameptr, tcnp->cn_namelen, flags, &scred);
	} else
#endif
	{
		/*
		 * We have to do the work atomicaly
		 */
		if (tvp && tvp != fvp) {
			error = smbfs_smb_delete(VTOSMB(tvp), &scred);
			if (error)
				goto out;
			VTOSMB(tvp)->n_flag |= NGONE;
			VN_KNOTE(tdvp, NOTE_WRITE);
			VN_KNOTE(tvp, NOTE_DELETE);
			cache_purge(tvp);
		}
		error = smbfs_smb_rename(VTOSMB(fvp), VTOSMB(tdvp),
		    tcnp->cn_nameptr, tcnp->cn_namelen, &scred);
		VTOSMB(fvp)->n_flag |= NGONE;
		VN_KNOTE(fdvp, NOTE_WRITE);
		VN_KNOTE(fvp, NOTE_RENAME);
	}

	if (fvp->v_type == VDIR) {
		if (tvp != NULL && tvp->v_type == VDIR)
			cache_purge(tdvp);
		cache_purge(fdvp);
	}

	smbfs_attr_cacheremove(fdvp);
	smbfs_attr_cacheremove(tdvp);

out:

	if (tdvp == tvp)
		vrele(tdvp);
	else
		vput(tdvp);
	if (tvp)
		vput(tvp);

	vrele(fdvp);
	vrele(fvp);

	return (error);
}
コード例 #22
0
ファイル: smbfs_vnops.c プロジェクト: ryo/netbsd-src
int
smbfs_setattr(void *v)
{
	struct vop_setattr_args /* {
		struct vnode *a_vp;
		struct vattr *a_vap;
		kauth_cred_t a_cred;
	} */ *ap = v;
	struct lwp *l = curlwp;
	struct vnode *vp = ap->a_vp;
	struct smbnode *np = VTOSMB(vp);
	struct vattr *vap = ap->a_vap;
	struct timespec *mtime, *atime;
	struct smb_cred scred;
	struct smb_share *ssp = np->n_mount->sm_share;
	struct smb_vc *vcp = SSTOVC(ssp);
	u_quad_t tsize = 0;
	int isreadonly, doclose, error = 0;

	SMBVDEBUG0("\n");
	if (vap->va_flags != VNOVAL)
		return EOPNOTSUPP;
	isreadonly = (vp->v_mount->mnt_flag & MNT_RDONLY);
	/*
	 * Disallow write attempts if the filesystem is mounted read-only.
	 */
  	if ((vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL ||
	     vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL ||
	     vap->va_mode != (mode_t)VNOVAL) && isreadonly)
		return EROFS;
	smb_makescred(&scred, l, ap->a_cred);
	if (vap->va_size != VNOVAL) {
 		switch (vp->v_type) {
 		case VDIR:
 			return EISDIR;
 		case VREG:
			break;
 		default:
			return EINVAL;
  		};
		if (isreadonly)
			return EROFS;
		doclose = 0;
 		tsize = np->n_size;
 		np->n_size = vap->va_size;
		uvm_vnp_setsize(vp, vap->va_size);
		if ((np->n_flag & NOPEN) == 0) {
			error = smbfs_smb_open(np,
			    SMB_SM_DENYNONE|SMB_AM_OPENRW, &scred);
			if (error == 0)
				doclose = 1;
		}
		if (error == 0)
			error = smbfs_smb_setfsize(np, vap->va_size, &scred);
		if (doclose)
			smbfs_smb_close(ssp, np->n_fid, NULL, &scred);
		if (error) {
			np->n_size = tsize;
			uvm_vnp_setsize(vp, tsize);
			return (error);
		}
  	}
	mtime = atime = NULL;
	if (vap->va_mtime.tv_sec != VNOVAL)
		mtime = &vap->va_mtime;
	if (vap->va_atime.tv_sec != VNOVAL)
		atime = &vap->va_atime;
	if (mtime != atime) {
		error = kauth_authorize_vnode(ap->a_cred,
		    KAUTH_VNODE_WRITE_TIMES, ap->a_vp, NULL,
		    genfs_can_chtimes(ap->a_vp, vap->va_vaflags,
		    VTOSMBFS(vp)->sm_args.uid, ap->a_cred));
		if (error)
			return (error);

#if 0
		if (mtime == NULL)
			mtime = &np->n_mtime;
		if (atime == NULL)
			atime = &np->n_atime;
#endif
		/*
		 * If file is opened, then we can use handle based calls.
		 * If not, use path based ones.
		 */
		if ((np->n_flag & NOPEN) == 0) {
			if (vcp->vc_flags & SMBV_WIN95) {
				error = VOP_OPEN(vp, FWRITE, ap->a_cred);
				if (!error) {
/*				error = smbfs_smb_setfattrNT(np, 0, mtime, atime, &scred);
				VOP_GETATTR(vp, &vattr, ap->a_cred);*/
				if (mtime)
					np->n_mtime = *mtime;
				VOP_CLOSE(vp, FWRITE, ap->a_cred);
				}
			} else if (SMB_CAPS(vcp) & SMB_CAP_NT_SMBS) {
				error = smbfs_smb_setpattrNT(np, 0, mtime, atime, &scred);
			} else if (SMB_DIALECT(vcp) >= SMB_DIALECT_LANMAN2_0) {
				error = smbfs_smb_setptime2(np, mtime, atime, 0, &scred);
			} else {
				error = smbfs_smb_setpattr(np, 0, mtime, &scred);
			}
		} else {
			if (SMB_CAPS(vcp) & SMB_CAP_NT_SMBS) {
				error = smbfs_smb_setfattrNT(np, 0, mtime, atime, &scred);
			} else if (SMB_DIALECT(vcp) >= SMB_DIALECT_LANMAN1_0) {
				error = smbfs_smb_setftime(np, mtime, atime, &scred);
			} else {
				/*
				 * XXX I have no idea how to handle this for core
				 * level servers. The possible solution is to
				 * update mtime after file is closed.
				 */
			}
		}
	}
	/*
	 * Invalidate attribute cache in case if server doesn't set
	 * required attributes.
	 */
	smbfs_attr_cacheremove(vp);	/* invalidate cache */
	VOP_GETATTR(vp, vap, ap->a_cred);
	np->n_mtime.tv_sec = vap->va_mtime.tv_sec;
	VN_KNOTE(vp, NOTE_ATTRIB);
	return error;
}
コード例 #23
0
/*
 * Vnode op for VM getpages.
 * Wish wish .... get rid from multiple IO routines
 *
 * smbfs_getpages(struct vnode *a_vp, vm_page_t *a_m, int a_count,
 *		  int a_reqpage, vm_ooffset_t a_offset)
 */
int
smbfs_getpages(struct vop_getpages_args *ap)
{
#ifdef SMBFS_RWGENERIC
	return vop_stdgetpages(ap);
#else
	int i, error, npages;
	int doclose;
	size_t size, toff, nextoff, count;
	struct uio uio;
	struct iovec iov;
	vm_offset_t kva;
	struct buf *bp;
	struct vnode *vp;
	struct thread *td = curthread;	/* XXX */
	struct ucred *cred;
	struct smbmount *smp;
	struct smbnode *np;
	struct smb_cred scred;
	vm_page_t *pages;

	KKASSERT(td->td_proc);

	vp = ap->a_vp;
	cred = td->td_proc->p_ucred;
	np = VTOSMB(vp);
	smp = VFSTOSMBFS(vp->v_mount);
	pages = ap->a_m;
	count = (size_t)ap->a_count;

	if (vp->v_object == NULL) {
		kprintf("smbfs_getpages: called with non-merged cache vnode??\n");
		return VM_PAGER_ERROR;
	}
	smb_makescred(&scred, td, cred);

	bp = getpbuf_kva(&smbfs_pbuf_freecnt);
	npages = btoc(count);
	kva = (vm_offset_t) bp->b_data;
	pmap_qenter(kva, pages, npages);

	iov.iov_base = (caddr_t) kva;
	iov.iov_len = count;
	uio.uio_iov = &iov;
	uio.uio_iovcnt = 1;
	uio.uio_offset = IDX_TO_OFF(pages[0]->pindex);
	uio.uio_resid = count;
	uio.uio_segflg = UIO_SYSSPACE;
	uio.uio_rw = UIO_READ;
	uio.uio_td = td;

	/*
	 * This is kinda nasty.  Since smbfs is physically closing the
	 * fid on close(), we have to reopen it if necessary.  There are
	 * other races here too, such as if another process opens the same
	 * file while we are blocked in read. XXX
	 */
	error = 0;
	doclose = 0;
	if (np->n_opencount == 0) {
		error = smbfs_smb_open(np, SMB_AM_OPENREAD, &scred);
		if (error == 0)
			doclose = 1;
	}
	if (error == 0)
		error = smb_read(smp->sm_share, np->n_fid, &uio, &scred);
	if (doclose)
		smbfs_smb_close(smp->sm_share, np->n_fid, NULL, &scred);
	pmap_qremove(kva, npages);

	relpbuf(bp, &smbfs_pbuf_freecnt);

	if (error && (uio.uio_resid == count)) {
		kprintf("smbfs_getpages: error %d\n",error);
		for (i = 0; i < npages; i++) {
			if (ap->a_reqpage != i)
				vnode_pager_freepage(pages[i]);
		}
		return VM_PAGER_ERROR;
	}

	size = count - uio.uio_resid;

	for (i = 0, toff = 0; i < npages; i++, toff = nextoff) {
		vm_page_t m;
		nextoff = toff + PAGE_SIZE;
		m = pages[i];

		m->flags &= ~PG_ZERO;

		/*
		 * NOTE: pmap dirty bit should have already been cleared.
		 *	 We do not clear it here.
		 */
		if (nextoff <= size) {
			m->valid = VM_PAGE_BITS_ALL;
			m->dirty = 0;
		} else {
			int nvalid = ((size + DEV_BSIZE - 1) - toff) &
				      ~(DEV_BSIZE - 1);
			vm_page_set_validclean(m, 0, nvalid);
		}
		
		if (i != ap->a_reqpage) {
			/*
			 * Whether or not to leave the page activated is up in
			 * the air, but we should put the page on a page queue
			 * somewhere (it already is in the object).  Result:
			 * It appears that emperical results show that
			 * deactivating pages is best.
			 */

			/*
			 * Just in case someone was asking for this page we
			 * now tell them that it is ok to use.
			 */
			if (!error) {
				if (m->flags & PG_REFERENCED)
					vm_page_activate(m);
				else
					vm_page_deactivate(m);
				vm_page_wakeup(m);
			} else {
				vnode_pager_freepage(m);
			}
		}
	}
	return 0;
#endif /* SMBFS_RWGENERIC */
}
コード例 #24
0
ファイル: smbfs_vnops.c プロジェクト: ryo/netbsd-src
/* ARGSUSED */
int
smbfs_open(void *v)
{
	struct vop_open_args /* {
		struct vnode *a_vp;
		int  a_mode;
		kauth_cred_t a_cred;
	} */ *ap = v;
	struct lwp *l = curlwp;
	struct vnode *vp = ap->a_vp;
	struct smbnode *np = VTOSMB(vp);
	struct smb_cred scred;
	struct vattr vattr;
	u_int32_t sv_caps = SMB_CAPS(SSTOVC(np->n_mount->sm_share));
	int error, accmode;

	SMBVDEBUG("%.*s,%d\n", (int) np->n_nmlen, np->n_name,
	    (np->n_flag & NOPEN) != 0);
	if (vp->v_type != VREG && vp->v_type != VDIR) {
		SMBFSERR("open eacces vtype=%d\n", vp->v_type);
		return EACCES;
	}
	if (vp->v_type == VDIR) {
		if ((sv_caps & SMB_CAP_NT_SMBS) == 0) {
			np->n_flag |= NOPEN;
			return 0;
		}
		goto do_open;	/* skip 'modified' check */
	}

	if (np->n_flag & NMODIFIED) {
		if ((error = smbfs_vinvalbuf(vp, V_SAVE, ap->a_cred, l, 1)) == EINTR)
			return error;
		smbfs_attr_cacheremove(vp);
		error = VOP_GETATTR(vp, &vattr, ap->a_cred);
		if (error)
			return error;
		np->n_mtime.tv_sec = vattr.va_mtime.tv_sec;
	} else {
		error = VOP_GETATTR(vp, &vattr, ap->a_cred);
		if (error)
			return error;
		if (np->n_mtime.tv_sec != vattr.va_mtime.tv_sec) {
			error = smbfs_vinvalbuf(vp, V_SAVE, ap->a_cred, l, 1);
			if (error == EINTR)
				return error;
			np->n_mtime.tv_sec = vattr.va_mtime.tv_sec;
		}
	}

do_open:
	if ((np->n_flag & NOPEN) != 0)
		return 0;

	smb_makescred(&scred, l, ap->a_cred);
	if (vp->v_type == VDIR)
		error = smbfs_smb_ntcreatex(np,
		    SMB_SM_DENYNONE|SMB_AM_OPENREAD, &scred);
	else {
		/*
		 * Use DENYNONE to give unixy semantics of permitting
		 * everything not forbidden by permissions.  Ie denial
		 * is up to server with clients/openers needing to use
		 * advisory locks for further control.
		 */
		accmode = SMB_SM_DENYNONE|SMB_AM_OPENREAD;
		if ((vp->v_mount->mnt_flag & MNT_RDONLY) == 0)
			accmode = SMB_SM_DENYNONE|SMB_AM_OPENRW;
		error = smbfs_smb_open(np, accmode, &scred);
		if (error) {
			if (ap->a_mode & FWRITE)
				return EACCES;

			error = smbfs_smb_open(np,
			    SMB_SM_DENYNONE|SMB_AM_OPENREAD, &scred);
		}
	}
	if (!error)
		np->n_flag |= NOPEN;
	smbfs_attr_cacheremove(vp);
	return error;
}
コード例 #25
0
/*
 * Vnode op for VM putpages.
 * possible bug: all IO done in sync mode
 * Note that vop_close always invalidate pages before close, so it's
 * not necessary to open vnode.
 *
 * smbfs_putpages(struct vnode *a_vp, vm_page_t *a_m, int a_count, int a_sync,
 *		  int *a_rtvals, vm_ooffset_t a_offset)
 */
int
smbfs_putpages(struct vop_putpages_args *ap)
{
	int error;
	struct vnode *vp = ap->a_vp;
	struct thread *td = curthread;	/* XXX */
	struct ucred *cred;

#ifdef SMBFS_RWGENERIC
	KKASSERT(td->td_proc);
	cred = td->td_proc->p_ucred;
	VOP_OPEN(vp, FWRITE, cred, NULL);
	error = vop_stdputpages(ap);
	VOP_CLOSE(vp, FWRITE, cred);
	return error;
#else
	struct uio uio;
	struct iovec iov;
	vm_offset_t kva;
	struct buf *bp;
	int i, npages, count;
	int doclose;
	int *rtvals;
	struct smbmount *smp;
	struct smbnode *np;
	struct smb_cred scred;
	vm_page_t *pages;

	KKASSERT(td->td_proc);
	cred = td->td_proc->p_ucred;
/*	VOP_OPEN(vp, FWRITE, cred, NULL);*/
	np = VTOSMB(vp);
	smp = VFSTOSMBFS(vp->v_mount);
	pages = ap->a_m;
	count = ap->a_count;
	rtvals = ap->a_rtvals;
	npages = btoc(count);

	for (i = 0; i < npages; i++) {
		rtvals[i] = VM_PAGER_AGAIN;
	}

	bp = getpbuf_kva(&smbfs_pbuf_freecnt);
	kva = (vm_offset_t) bp->b_data;
	pmap_qenter(kva, pages, npages);

	iov.iov_base = (caddr_t) kva;
	iov.iov_len = count;
	uio.uio_iov = &iov;
	uio.uio_iovcnt = 1;
	uio.uio_offset = IDX_TO_OFF(pages[0]->pindex);
	uio.uio_resid = count;
	uio.uio_segflg = UIO_SYSSPACE;
	uio.uio_rw = UIO_WRITE;
	uio.uio_td = td;
	SMBVDEBUG("ofs=%d,resid=%d\n",(int)uio.uio_offset, uio.uio_resid);

	smb_makescred(&scred, td, cred);

	/*
	 * This is kinda nasty.  Since smbfs is physically closing the
	 * fid on close(), we have to reopen it if necessary.  There are
	 * other races here too, such as if another process opens the same
	 * file while we are blocked in read, or the file is open read-only
	 * XXX
	 */
	error = 0;
	doclose = 0;
	if (np->n_opencount == 0) {
		error = smbfs_smb_open(np, SMB_AM_OPENRW, &scred);
		if (error == 0)
			doclose = 1;
	}
	if (error == 0)
		error = smb_write(smp->sm_share, np->n_fid, &uio, &scred);
	if (doclose)
		smbfs_smb_close(smp->sm_share, np->n_fid, NULL, &scred);
/*	VOP_CLOSE(vp, FWRITE, cred);*/
	SMBVDEBUG("paged write done: %d\n", error);

	pmap_qremove(kva, npages);
	relpbuf(bp, &smbfs_pbuf_freecnt);

	if (!error) {
		int nwritten = round_page(count - uio.uio_resid) / PAGE_SIZE;
		for (i = 0; i < nwritten; i++) {
			rtvals[i] = VM_PAGER_OK;
			vm_page_undirty(pages[i]);
		}
	}
	return rtvals[0];
#endif /* SMBFS_RWGENERIC */
}
コード例 #26
0
ファイル: smbfs_vfsops.c プロジェクト: derekmarcotte/freebsd
static int
smbfs_mount(struct mount *mp)
{
	struct smbmount *smp = NULL;
	struct smb_vc *vcp;
	struct smb_share *ssp = NULL;
	struct vnode *vp;
	struct thread *td;
	struct smb_dev *dev;
	struct smb_cred *scred;
	int error, v;
	char *pc, *pe;

	dev = NULL;
	td = curthread;
	if (mp->mnt_flag & (MNT_UPDATE | MNT_ROOTFS))
		return EOPNOTSUPP;

	if (vfs_filteropt(mp->mnt_optnew, smbfs_opts)) {
		vfs_mount_error(mp, "%s", "Invalid option");
		return (EINVAL);
	}

	scred = smbfs_malloc_scred();
	smb_makescred(scred, td, td->td_ucred);
	
	/* Ask userspace of `fd`, the file descriptor of this session */
	if (1 != vfs_scanopt(mp->mnt_optnew, "fd", "%d", &v)) {
		vfs_mount_error(mp, "No fd option");
		smbfs_free_scred(scred);
		return (EINVAL);
	}
	error = smb_dev2share(v, SMBM_EXEC, scred, &ssp, &dev);
	smp = malloc(sizeof(*smp), M_SMBFSDATA, M_WAITOK | M_ZERO);
	if (error) {
		printf("invalid device handle %d (%d)\n", v, error);
		vfs_mount_error(mp, "invalid device handle %d %d\n", v, error);
		smbfs_free_scred(scred);
		free(smp, M_SMBFSDATA);
		return error;
	}
	vcp = SSTOVC(ssp);
	smb_share_unlock(ssp);
	mp->mnt_stat.f_iosize = SSTOVC(ssp)->vc_txmax;
	mp->mnt_data = smp;
	smp->sm_share = ssp;
	smp->sm_root = NULL;
	smp->sm_dev = dev;
	if (1 != vfs_scanopt(mp->mnt_optnew,
	    "caseopt", "%d", &smp->sm_caseopt)) {
		vfs_mount_error(mp, "Invalid caseopt");
		error = EINVAL;
		goto bad;
	}
	if (1 != vfs_scanopt(mp->mnt_optnew, "uid", "%d", &v)) {
		vfs_mount_error(mp, "Invalid uid");
		error = EINVAL;
		goto bad;
	}
	smp->sm_uid = v;

	if (1 != vfs_scanopt(mp->mnt_optnew, "gid", "%d", &v)) {
		vfs_mount_error(mp, "Invalid gid");
		error = EINVAL;
		goto bad;
	}
	smp->sm_gid = v;

	if (1 != vfs_scanopt(mp->mnt_optnew, "file_mode", "%d", &v)) {
		vfs_mount_error(mp, "Invalid file_mode");
		error = EINVAL;
		goto bad;
	}
	smp->sm_file_mode = (v & (S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFREG;

	if (1 != vfs_scanopt(mp->mnt_optnew, "dir_mode", "%d", &v)) {
		vfs_mount_error(mp, "Invalid dir_mode");
		error = EINVAL;
		goto bad;
	}
	smp->sm_dir_mode  = (v & (S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFDIR;

	vfs_flagopt(mp->mnt_optnew,
	    "nolong", &smp->sm_flags, SMBFS_MOUNT_NO_LONG);

	pc = mp->mnt_stat.f_mntfromname;
	pe = pc + sizeof(mp->mnt_stat.f_mntfromname);
	bzero(pc, MNAMELEN);
	*pc++ = '/';
	*pc++ = '/';
	pc = strchr(strncpy(pc, vcp->vc_username, pe - pc - 2), 0);
	if (pc < pe-1) {
		*(pc++) = '@';
		pc = strchr(strncpy(pc, vcp->vc_srvname, pe - pc - 2), 0);
		if (pc < pe - 1) {
			*(pc++) = '/';
			strncpy(pc, ssp->ss_name, pe - pc - 2);
		}
	}
	vfs_getnewfsid(mp);
	error = smbfs_root(mp, LK_EXCLUSIVE, &vp);
	if (error) {
		vfs_mount_error(mp, "smbfs_root error: %d", error);
		goto bad;
	}
	VOP_UNLOCK(vp, 0);
	SMBVDEBUG("root.v_usecount = %d\n", vrefcnt(vp));

#ifdef DIAGNOSTIC
	SMBERROR("mp=%p\n", mp);
#endif
	smbfs_free_scred(scred);
	return error;
bad:
	if (ssp)
		smb_share_put(ssp, scred);
	smbfs_free_scred(scred);	
	SMB_LOCK();
	if (error && smp->sm_dev == dev) {
		smp->sm_dev = NULL;
		sdp_trydestroy(dev);
	}
	SMB_UNLOCK();
	free(smp, M_SMBFSDATA);
	return error;
}
コード例 #27
0
static int
smbfs_readvdir(struct vnode *vp, struct uio *uio, struct ucred *cred)
{
	struct smb_cred scred;
	struct smbfs_fctx *ctx;
	struct vnode *newvp;
	struct smbnode *np;
	int error, offset, retval;

	np = VTOSMB(vp);
	SMBVDEBUG("dirname='%s'\n", np->n_name);
	smb_makescred(&scred, uio->uio_td, cred);

	if (uio->uio_offset < 0 || uio->uio_offset > INT_MAX)
		return(EINVAL);

	error = 0;
	offset = uio->uio_offset;

	if (uio->uio_resid > 0 && offset < 1) {
		if (vop_write_dirent(&error, uio, np->n_ino, DT_DIR, 1, "."))
			goto done;
		if (error)
			goto done;
		++offset;
	}

	if (uio->uio_resid > 0 && offset < 2) {
		if (vop_write_dirent(&error, uio,
		    np->n_parent ? VTOSMB(np->n_parent)->n_ino : 2,
		    DT_DIR, 2, ".."))
			goto done;
		if (error)
			goto done;
		++offset;
	}

	if (uio->uio_resid == 0)
		goto done;

	if (offset != np->n_dirofs || np->n_dirseq == NULL) {
		SMBVDEBUG("Reopening search %ld:%ld\n", offset, np->n_dirofs);
		if (np->n_dirseq) {
			smbfs_findclose(np->n_dirseq, &scred);
			np->n_dirseq = NULL;
		}
		np->n_dirofs = 2;
		error = smbfs_findopen(np, "*", 1,
		    SMB_FA_SYSTEM | SMB_FA_HIDDEN | SMB_FA_DIR,
		    &scred, &ctx);
		if (error) {
			SMBVDEBUG("can not open search, error = %d", error);
			return error;
		}
		np->n_dirseq = ctx;
	} else {
		ctx = np->n_dirseq;
	}
	while (np->n_dirofs < offset) {
		error = smbfs_findnext(ctx, offset - np->n_dirofs, &scred);
		++np->n_dirofs;
		if (error) {
			smbfs_findclose(np->n_dirseq, &scred);
			np->n_dirseq = NULL;
			return error == ENOENT ? 0 : error;
		}
	}
	error = 0;
	while (uio->uio_resid > 0 && !error) {
		/*
		 * Overestimate the size of a record a bit, doesn't really
		 * hurt to be wrong here.
		 */
		error = smbfs_findnext(ctx, uio->uio_resid / _DIRENT_RECLEN(255) + 1, &scred);
		if (error)
			break;
		np->n_dirofs++;
		++offset;

		retval = vop_write_dirent(&error, uio, ctx->f_attr.fa_ino,
		    (ctx->f_attr.fa_attr & SMB_FA_DIR) ? DT_DIR : DT_REG,
		    ctx->f_nmlen, ctx->f_name);
		if (retval)
			break;
		if (smbfs_fastlookup && !error) {
			error = smbfs_nget(vp->v_mount, vp, ctx->f_name,
			    ctx->f_nmlen, &ctx->f_attr, &newvp);
			if (!error)
				vput(newvp);
		}
	}
	if (error == ENOENT)
		error = 0;
done:
	uio->uio_offset = offset;
	return error;
}
コード例 #28
0
int
smbfs_mount(struct mount *mp, const char *path, void *data, size_t *data_len)
{
	struct lwp *l = curlwp;
	struct smbfs_args *args = data; 	  /* holds data from mount request */
	struct smbmount *smp = NULL;
	struct smb_vc *vcp;
	struct smb_share *ssp = NULL;
	struct smb_cred scred;
	struct proc *p;
	int error;

	if (*data_len < sizeof *args)
		return EINVAL;

	p = l->l_proc;
	if (mp->mnt_flag & MNT_GETARGS) {
		smp = VFSTOSMBFS(mp);
		if (smp == NULL)
			return EIO;
		*args = smp->sm_args;
		*data_len = sizeof *args;
		return 0;
	}

	if (mp->mnt_flag & MNT_UPDATE)
		return EOPNOTSUPP;

	if (args->version != SMBFS_VERSION) {
		SMBVDEBUG("mount version mismatch: kernel=%d, mount=%d\n",
		    SMBFS_VERSION, args->version);
		return EINVAL;
	}

	error = set_statvfs_info(path, UIO_USERSPACE, NULL, UIO_USERSPACE,
	    mp->mnt_op->vfs_name, mp, l);
	if (error)
		return error;

	smb_makescred(&scred, l, l->l_cred);
	error = smb_dev2share(args->dev_fd, SMBM_EXEC, &scred, &ssp);
	if (error)
		return error;
	smb_share_unlock(ssp);	/* keep ref, but unlock */
	vcp = SSTOVC(ssp);
	mp->mnt_stat.f_iosize = vcp->vc_txmax;
	mp->mnt_stat.f_namemax =
	    (vcp->vc_hflags2 & SMB_FLAGS2_KNOWS_LONG_NAMES) ? 255 : 12;

	MALLOC(smp, struct smbmount *, sizeof(*smp), M_SMBFSDATA, M_WAITOK);
	memset(smp, 0, sizeof(*smp));
	mp->mnt_data = smp;

	smp->sm_hash = hashinit(desiredvnodes, HASH_LIST, true,
	    &smp->sm_hashlen);

	mutex_init(&smp->sm_hashlock, MUTEX_DEFAULT, IPL_NONE);
	smp->sm_share = ssp;
	smp->sm_root = NULL;
	smp->sm_args = *args;
	smp->sm_caseopt = args->caseopt;
	smp->sm_args.file_mode = (smp->sm_args.file_mode &
			    (S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFREG;
	smp->sm_args.dir_mode  = (smp->sm_args.dir_mode &
			    (S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFDIR;

	memset(mp->mnt_stat.f_mntfromname, 0, MNAMELEN);
	snprintf(mp->mnt_stat.f_mntfromname, MNAMELEN,
	    "//%s@%s/%s", vcp->vc_username, vcp->vc_srvname, ssp->ss_name);

	vfs_getnewfsid(mp);
	return (0);
}
コード例 #29
0
ファイル: smbfs_io.c プロジェクト: ChaosJohn/freebsd
static int
smbfs_readvdir(struct vnode *vp, struct uio *uio, struct ucred *cred)
{
	struct dirent de;
	struct componentname cn;
	struct smb_cred *scred;
	struct smbfs_fctx *ctx;
	struct vnode *newvp;
	struct smbnode *np = VTOSMB(vp);
	int error/*, *eofflag = ap->a_eofflag*/;
	long offset, limit;

	np = VTOSMB(vp);
	SMBVDEBUG("dirname='%s'\n", np->n_name);
	scred = smbfs_malloc_scred();
	smb_makescred(scred, uio->uio_td, cred);
	offset = uio->uio_offset / DE_SIZE;	/* offset in the directory */
	limit = uio->uio_resid / DE_SIZE;
	if (uio->uio_resid < DE_SIZE || uio->uio_offset < 0) {
		error = EINVAL;
		goto out;
	}
	while (limit && offset < 2) {
		limit--;
		bzero((caddr_t)&de, DE_SIZE);
		de.d_reclen = DE_SIZE;
		de.d_fileno = (offset == 0) ? np->n_ino :
		    (np->n_parent ? np->n_parentino : 2);
		if (de.d_fileno == 0)
			de.d_fileno = 0x7ffffffd + offset;
		de.d_namlen = offset + 1;
		de.d_name[0] = '.';
		de.d_name[1] = '.';
		de.d_name[offset + 1] = '\0';
		de.d_type = DT_DIR;
		error = uiomove(&de, DE_SIZE, uio);
		if (error)
			goto out;
		offset++;
		uio->uio_offset += DE_SIZE;
	}
	if (limit == 0) {
		error = 0;
		goto out;
	}
	if (offset != np->n_dirofs || np->n_dirseq == NULL) {
		SMBVDEBUG("Reopening search %ld:%ld\n", offset, np->n_dirofs);
		if (np->n_dirseq) {
			smbfs_findclose(np->n_dirseq, scred);
			np->n_dirseq = NULL;
		}
		np->n_dirofs = 2;
		error = smbfs_findopen(np, "*", 1,
		    SMB_FA_SYSTEM | SMB_FA_HIDDEN | SMB_FA_DIR,
		    scred, &ctx);
		if (error) {
			SMBVDEBUG("can not open search, error = %d", error);
			goto out;
		}
		np->n_dirseq = ctx;
	} else
		ctx = np->n_dirseq;
	while (np->n_dirofs < offset) {
		error = smbfs_findnext(ctx, offset - np->n_dirofs++, scred);
		if (error) {
			smbfs_findclose(np->n_dirseq, scred);
			np->n_dirseq = NULL;
			error = ENOENT ? 0 : error;
			goto out;
		}
	}
	error = 0;
	for (; limit; limit--, offset++) {
		error = smbfs_findnext(ctx, limit, scred);
		if (error)
			break;
		np->n_dirofs++;
		bzero((caddr_t)&de, DE_SIZE);
		de.d_reclen = DE_SIZE;
		de.d_fileno = ctx->f_attr.fa_ino;
		de.d_type = (ctx->f_attr.fa_attr & SMB_FA_DIR) ? DT_DIR : DT_REG;
		de.d_namlen = ctx->f_nmlen;
		bcopy(ctx->f_name, de.d_name, de.d_namlen);
		de.d_name[de.d_namlen] = '\0';
		if (smbfs_fastlookup) {
			error = smbfs_nget(vp->v_mount, vp, ctx->f_name,
			    ctx->f_nmlen, &ctx->f_attr, &newvp);
			if (!error) {
				cn.cn_nameptr = de.d_name;
				cn.cn_namelen = de.d_namlen;
				cache_enter(vp, newvp, &cn);
				vput(newvp);
			}
		}
		error = uiomove(&de, DE_SIZE, uio);
		if (error)
			break;
	}
	if (error == ENOENT)
		error = 0;
	uio->uio_offset = offset * DE_SIZE;
out:
	smbfs_free_scred(scred);
	return error;
}
コード例 #30
0
static int
nsmb_dev_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td)
{
	struct smb_dev *sdp;
	struct smb_vc *vcp;
	struct smb_share *ssp;
	struct smb_cred *scred;
	int error = 0;

	SMB_CHECKMINOR(dev);
	if ((sdp->sd_flags & NSMBFL_OPEN) == 0)
		return EBADF;

	scred = malloc(sizeof(struct smb_cred), M_NSMBDEV, M_WAITOK);
	smb_makescred(scred, td, NULL);
	switch (cmd) {
	    case SMBIOC_OPENSESSION:
		if (sdp->sd_vc) {
			error = EISCONN;
			goto out;
		}
		error = smb_usr_opensession((struct smbioc_ossn*)data,
		    scred, &vcp);
		if (error)
			break;
		sdp->sd_vc = vcp;
		smb_vc_unlock(vcp, 0);
		sdp->sd_level = SMBL_VC;
		break;
	    case SMBIOC_OPENSHARE:
		if (sdp->sd_share) {
			error = EISCONN;
			goto out;
		}
		if (sdp->sd_vc == NULL) {
			error = ENOTCONN;
			goto out;
		}
		error = smb_usr_openshare(sdp->sd_vc,
		    (struct smbioc_oshare*)data, scred, &ssp);
		if (error)
			break;
		sdp->sd_share = ssp;
		smb_share_unlock(ssp, 0);
		sdp->sd_level = SMBL_SHARE;
		break;
	    case SMBIOC_REQUEST:
		if (sdp->sd_share == NULL) {
			error = ENOTCONN;
			goto out;
		}
		error = smb_usr_simplerequest(sdp->sd_share,
		    (struct smbioc_rq*)data, scred);
		break;
	    case SMBIOC_T2RQ:
		if (sdp->sd_share == NULL) {
			error = ENOTCONN;
			goto out;
		}
		error = smb_usr_t2request(sdp->sd_share,
		    (struct smbioc_t2rq*)data, scred);
		break;
	    case SMBIOC_SETFLAGS: {
		struct smbioc_flags *fl = (struct smbioc_flags*)data;
		int on;
	
		if (fl->ioc_level == SMBL_VC) {
			if (fl->ioc_mask & SMBV_PERMANENT) {
				on = fl->ioc_flags & SMBV_PERMANENT;
				if ((vcp = sdp->sd_vc) == NULL) {
					error = ENOTCONN;
					goto out;
				}
				error = smb_vc_get(vcp, LK_EXCLUSIVE, scred);
				if (error)
					break;
				if (on && (vcp->obj.co_flags & SMBV_PERMANENT) == 0) {
					vcp->obj.co_flags |= SMBV_PERMANENT;
					smb_vc_ref(vcp);
				} else if (!on && (vcp->obj.co_flags & SMBV_PERMANENT)) {
					vcp->obj.co_flags &= ~SMBV_PERMANENT;
					smb_vc_rele(vcp, scred);
				}
				smb_vc_put(vcp, scred);
			} else
				error = EINVAL;
		} else if (fl->ioc_level == SMBL_SHARE) {
			if (fl->ioc_mask & SMBS_PERMANENT) {
				on = fl->ioc_flags & SMBS_PERMANENT;
				if ((ssp = sdp->sd_share) == NULL) {
					error = ENOTCONN;
					goto out;
				}
				error = smb_share_get(ssp, LK_EXCLUSIVE, scred);
				if (error)
					break;
				if (on && (ssp->obj.co_flags & SMBS_PERMANENT) == 0) {
					ssp->obj.co_flags |= SMBS_PERMANENT;
					smb_share_ref(ssp);
				} else if (!on && (ssp->obj.co_flags & SMBS_PERMANENT)) {
					ssp->obj.co_flags &= ~SMBS_PERMANENT;
					smb_share_rele(ssp, scred);
				}
				smb_share_put(ssp, scred);
			} else
				error = EINVAL;
			break;
		} else
			error = EINVAL;
		break;
	    }
	    case SMBIOC_LOOKUP:
		if (sdp->sd_vc || sdp->sd_share) {
			error = EISCONN;
			goto out;
		}
		vcp = NULL;
		ssp = NULL;
		error = smb_usr_lookup((struct smbioc_lookup*)data, scred, &vcp, &ssp);
		if (error)
			break;
		if (vcp) {
			sdp->sd_vc = vcp;
			smb_vc_unlock(vcp, 0);
			sdp->sd_level = SMBL_VC;
		}
		if (ssp) {
			sdp->sd_share = ssp;
			smb_share_unlock(ssp, 0);
			sdp->sd_level = SMBL_SHARE;
		}
		break;
	    case SMBIOC_READ: case SMBIOC_WRITE: {
		struct smbioc_rw *rwrq = (struct smbioc_rw*)data;
		struct uio auio;
		struct iovec iov;
	
		if ((ssp = sdp->sd_share) == NULL) {
			error = ENOTCONN;
			goto out;
	 	}
		iov.iov_base = rwrq->ioc_base;
		iov.iov_len = rwrq->ioc_cnt;
		auio.uio_iov = &iov;
		auio.uio_iovcnt = 1;
		auio.uio_offset = rwrq->ioc_offset;
		auio.uio_resid = rwrq->ioc_cnt;
		auio.uio_segflg = UIO_USERSPACE;
		auio.uio_rw = (cmd == SMBIOC_READ) ? UIO_READ : UIO_WRITE;
		auio.uio_td = td;
		if (cmd == SMBIOC_READ)
			error = smb_read(ssp, rwrq->ioc_fh, &auio, scred);
		else
			error = smb_write(ssp, rwrq->ioc_fh, &auio, scred);
		rwrq->ioc_cnt -= auio.uio_resid;
		break;
	    }
	    default:
		error = ENODEV;
	}
out:
	free(scred, M_NSMBDEV);
	return error;
}