00e86a656c
This implements the VFS APIs using the libguestfs Python APIs. This removes the need to map the virtual disk image into the host filesystem, and thus avoids potential symlink attacks from the guest filesystem. It also performs better than the libguestfs FUSE module blueprint: virt-disk-api-refactoring Change-Id: I3202ec9479f22aa1ae461cab24968e54be1642c1 Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
177 lines
6.1 KiB
Python
177 lines
6.1 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
|
#
|
|
# Copyright (C) 2012 Red Hat, Inc.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License"); you may
|
|
# not use this file except in compliance with the License. You may obtain
|
|
# a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
# License for the specific language governing permissions and limitations
|
|
# under the License.
|
|
|
|
import sys
|
|
|
|
from nova import test
|
|
|
|
from nova.tests import fakeguestfs
|
|
from nova.virt.disk.vfs import guestfs as vfsimpl
|
|
|
|
|
|
class VirtDiskVFSGuestFSTest(test.TestCase):
|
|
|
|
def setUp(self):
|
|
super(VirtDiskVFSGuestFSTest, self).setUp()
|
|
sys.modules['guestfs'] = fakeguestfs
|
|
vfsimpl.guestfs = fakeguestfs
|
|
|
|
def test_appliance_setup_inspect(self):
|
|
vfs = vfsimpl.VFSGuestFS(imgfile="/dummy.qcow2",
|
|
imgfmt="qcow2",
|
|
partition=-1)
|
|
vfs.setup()
|
|
|
|
self.assertEqual(vfs.handle.running, True)
|
|
self.assertEqual(len(vfs.handle.mounts), 2)
|
|
self.assertEqual(vfs.handle.mounts[0][1],
|
|
"/dev/mapper/guestvgf-lv_root")
|
|
self.assertEqual(vfs.handle.mounts[1][1], "/dev/vda1")
|
|
self.assertEqual(vfs.handle.mounts[0][2], "/")
|
|
self.assertEqual(vfs.handle.mounts[1][2], "/boot")
|
|
|
|
handle = vfs.handle
|
|
vfs.teardown()
|
|
|
|
self.assertEqual(vfs.handle, None)
|
|
self.assertEqual(handle.running, False)
|
|
self.assertEqual(handle.closed, True)
|
|
self.assertEqual(len(handle.mounts), 0)
|
|
|
|
def test_appliance_setup_static_nopart(self):
|
|
vfs = vfsimpl.VFSGuestFS(imgfile="/dummy.qcow2",
|
|
imgfmt="qcow2",
|
|
partition=None)
|
|
vfs.setup()
|
|
|
|
self.assertEqual(vfs.handle.running, True)
|
|
self.assertEqual(len(vfs.handle.mounts), 1)
|
|
self.assertEqual(vfs.handle.mounts[0][1], "/dev/sda")
|
|
self.assertEqual(vfs.handle.mounts[0][2], "/")
|
|
|
|
handle = vfs.handle
|
|
vfs.teardown()
|
|
|
|
self.assertEqual(vfs.handle, None)
|
|
self.assertEqual(handle.running, False)
|
|
self.assertEqual(handle.closed, True)
|
|
self.assertEqual(len(handle.mounts), 0)
|
|
|
|
def test_appliance_setup_static_part(self):
|
|
vfs = vfsimpl.VFSGuestFS(imgfile="/dummy.qcow2",
|
|
imgfmt="qcow2",
|
|
partition=2)
|
|
vfs.setup()
|
|
|
|
self.assertEqual(vfs.handle.running, True)
|
|
self.assertEqual(len(vfs.handle.mounts), 1)
|
|
self.assertEqual(vfs.handle.mounts[0][1], "/dev/sda2")
|
|
self.assertEqual(vfs.handle.mounts[0][2], "/")
|
|
|
|
handle = vfs.handle
|
|
vfs.teardown()
|
|
|
|
self.assertEqual(vfs.handle, None)
|
|
self.assertEqual(handle.running, False)
|
|
self.assertEqual(handle.closed, True)
|
|
self.assertEqual(len(handle.mounts), 0)
|
|
|
|
def test_makepath(self):
|
|
vfs = vfsimpl.VFSGuestFS(imgfile="/dummy.qcow2", imgfmt="qcow2")
|
|
vfs.setup()
|
|
vfs.make_path("/some/dir")
|
|
vfs.make_path("/other/dir")
|
|
|
|
self.assertTrue("/some/dir" in vfs.handle.files)
|
|
self.assertTrue("/other/dir" in vfs.handle.files)
|
|
self.assertTrue(vfs.handle.files["/some/dir"]["isdir"])
|
|
self.assertTrue(vfs.handle.files["/other/dir"]["isdir"])
|
|
|
|
vfs.teardown()
|
|
|
|
def test_append_file(self):
|
|
vfs = vfsimpl.VFSGuestFS(imgfile="/dummy.qcow2", imgfmt="qcow2")
|
|
vfs.setup()
|
|
vfs.append_file("/some/file", " Goodbye")
|
|
|
|
self.assertTrue("/some/file" in vfs.handle.files)
|
|
self.assertEqual(vfs.handle.files["/some/file"]["content"],
|
|
"Hello World Goodbye")
|
|
|
|
vfs.teardown()
|
|
|
|
def test_replace_file(self):
|
|
vfs = vfsimpl.VFSGuestFS(imgfile="/dummy.qcow2", imgfmt="qcow2")
|
|
vfs.setup()
|
|
vfs.replace_file("/some/file", "Goodbye")
|
|
|
|
self.assertTrue("/some/file" in vfs.handle.files)
|
|
self.assertEqual(vfs.handle.files["/some/file"]["content"],
|
|
"Goodbye")
|
|
|
|
vfs.teardown()
|
|
|
|
def test_read_file(self):
|
|
vfs = vfsimpl.VFSGuestFS(imgfile="/dummy.qcow2", imgfmt="qcow2")
|
|
vfs.setup()
|
|
self.assertEqual(vfs.read_file("/some/file"), "Hello World")
|
|
|
|
vfs.teardown()
|
|
|
|
def test_has_file(self):
|
|
vfs = vfsimpl.VFSGuestFS(imgfile="/dummy.qcow2", imgfmt="qcow2")
|
|
vfs.setup()
|
|
vfs.read_file("/some/file")
|
|
|
|
self.assertTrue(vfs.has_file("/some/file"))
|
|
self.assertFalse(vfs.has_file("/other/file"))
|
|
|
|
vfs.teardown()
|
|
|
|
def test_set_permissions(self):
|
|
vfs = vfsimpl.VFSGuestFS(imgfile="/dummy.qcow2", imgfmt="qcow2")
|
|
vfs.setup()
|
|
vfs.read_file("/some/file")
|
|
|
|
self.assertEquals(vfs.handle.files["/some/file"]["mode"], 0700)
|
|
|
|
vfs.set_permissions("/some/file", 0777)
|
|
self.assertEquals(vfs.handle.files["/some/file"]["mode"], 0777)
|
|
|
|
vfs.teardown()
|
|
|
|
def test_set_ownership(self):
|
|
vfs = vfsimpl.VFSGuestFS(imgfile="/dummy.qcow2", imgfmt="qcow2")
|
|
vfs.setup()
|
|
vfs.read_file("/some/file")
|
|
|
|
self.assertEquals(vfs.handle.files["/some/file"]["uid"], 100)
|
|
self.assertEquals(vfs.handle.files["/some/file"]["gid"], 100)
|
|
|
|
vfs.set_ownership("/some/file", "fred", None)
|
|
self.assertEquals(vfs.handle.files["/some/file"]["uid"], 105)
|
|
self.assertEquals(vfs.handle.files["/some/file"]["gid"], 100)
|
|
|
|
vfs.set_ownership("/some/file", None, "users")
|
|
self.assertEquals(vfs.handle.files["/some/file"]["uid"], 105)
|
|
self.assertEquals(vfs.handle.files["/some/file"]["gid"], 500)
|
|
|
|
vfs.set_ownership("/some/file", "joe", "admins")
|
|
self.assertEquals(vfs.handle.files["/some/file"]["uid"], 110)
|
|
self.assertEquals(vfs.handle.files["/some/file"]["gid"], 600)
|
|
|
|
vfs.teardown()
|