def mount(self, image, fs, mountpoint):
"""
Mounts the specified image file at the given mountpoint.
:param image: path to the image file to be mounted.
:param fs: file system of the imaged partition.
:param mountpoint: directory to be used for mounting.
:return: None
"""
self.mountpoint = mountpoint
self._thread = ExtendedThread(exception_callback=self._exception_callback,
target=self._mount_command, args=(image, fs, mountpoint),
daemon=True)
self._thread.start()
self._wait_and_set_status()
def mount(self, image, fs, mountpoint):
"""
Mounts the specified image file at the given mountpoint.
:param image: path to the image file to be mounted.
:param fs: file system of the imaged partition.
:param mountpoint: directory to be used for mounting.
:return: None
"""
self.mountpoint = mountpoint
self._thread = ExtendedThread(
exception_callback=self._exception_callback,
target=self._mount_command,
args=(image, fs, mountpoint),
daemon=True,
)
self._thread.start()
self._wait_and_set_status()
class NBDNode:
"""
This class wraps NBD devices provided by the Linux kernel and allows mounting of
the partclone images with the use of the ImageMount command.
"""
def __init__(self, device):
self.device = device
self.mountpoint = ""
self.error = False
self._runner = None
self._thread = None
self._unmounting = False
def mount(self, image, fs, mountpoint):
"""
Mounts the specified image file at the given mountpoint.
:param image: path to the image file to be mounted.
:param fs: file system of the imaged partition.
:param mountpoint: directory to be used for mounting.
:return: None
"""
self.mountpoint = mountpoint
self._thread = ExtendedThread(exception_callback=self._exception_callback,
target=self._mount_command, args=(image, fs, mountpoint),
daemon=True)
self._thread.start()
self._wait_and_set_status()
def _wait_and_set_status(self):
"""
Waits until the image is mounted and checks whether the mount procedure
was successful or not.
:return: None
"""
while self._runner.poll() is Execute.PROCESS_NOT_STARTED:
sleep(constants.BUSY_WAIT_INTERVAL)
if self._runner.poll() is not Execute.PROCESS_RUNNING:
self.error = True
def _mount_command(self, image, fs, mountpoint):
command = ['imagemount', '-f', image, '-d', self.device, '-m', mountpoint, '-t', fs, '-r', '-D']
self._runner = Execute(command)
self._runner.run()
status = self._runner.poll()
if not self._unmounting and status != 0:
raise MountException("Mounting returned exit code different than 0")
def _exception_callback(self, source, e):
self.error = True
def unmount(self):
"""
Unmounts the previously mounted image file.
:return: None
"""
if self._thread.isAlive():
self._unmounting = True
self._runner.kill()
self._thread.join()
self._unmounting = False
command = ['umount', self.mountpoint]
Execute(command).run()
def reset(self):
"""
Resets the node so that it can be used again for mounting another image.
:return: None
"""
self.unmount()
self._runner = None
self._thread = None
self.error = False
class NBDNode:
"""
This class wraps NBD devices provided by the Linux kernel and allows mounting of
the partclone images with the use of the ImageMount command.
"""
def __init__(self, device):
self.device = device
self.mountpoint = ""
self.error = False
self._runner = None
self._thread = None
self._unmounting = False
def mount(self, image, fs, mountpoint):
"""
Mounts the specified image file at the given mountpoint.
:param image: path to the image file to be mounted.
:param fs: file system of the imaged partition.
:param mountpoint: directory to be used for mounting.
:return: None
"""
self.mountpoint = mountpoint
self._thread = ExtendedThread(
exception_callback=self._exception_callback,
target=self._mount_command,
args=(image, fs, mountpoint),
daemon=True,
)
self._thread.start()
self._wait_and_set_status()
def _wait_and_set_status(self):
"""
Waits until the image is mounted and checks whether the mount procedure
was successful or not.
:return: None
"""
while self._runner.poll() is Execute.PROCESS_NOT_STARTED:
sleep(constants.BUSY_WAIT_INTERVAL)
if self._runner.poll() is not Execute.PROCESS_RUNNING:
self.error = True
def _mount_command(self, image, fs, mountpoint):
command = ["imagemount", "-f", image, "-d", self.device, "-m", mountpoint, "-t", fs, "-r", "-D"]
self._runner = Execute(command)
self._runner.run()
status = self._runner.poll()
if not self._unmounting and status != 0:
raise MountException("Mounting returned exit code different than 0")
def _exception_callback(self, source, e):
self.error = True
def unmount(self):
"""
Unmounts the previously mounted image file.
:return: None
"""
if self._thread.isAlive():
self._unmounting = True
self._runner.kill()
self._thread.join()
self._unmounting = False
command = ["umount", self.mountpoint]
Execute(command).run()
def reset(self):
"""
Resets the node so that it can be used again for mounting another image.
:return: None
"""
self.unmount()
self._runner = None
self._thread = None
self.error = False
