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# Copyright 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.
EVENT_APPLIANCE = 0x1
EVENT_LIBRARY = 0x2
EVENT_WARNING = 0x3
EVENT_TRACE = 0x4
class GuestFS(object):
SUPPORT_CLOSE_ON_EXIT = True
SUPPORT_RETURN_DICT = True
def __init__(self, **kwargs):
if not self.SUPPORT_CLOSE_ON_EXIT and 'close_on_exit' in kwargs:
raise TypeError('close_on_exit')
if not self.SUPPORT_RETURN_DICT and 'python_return_dict' in kwargs:
raise TypeError('python_return_dict')
self._python_return_dict = kwargs.get('python_return_dict', False)
self.kwargs = kwargs
self.drives = []
self.running = False
self.closed = False
self.mounts = []
self.files = {}
self.auginit = False
self.root_mounted = False
self.backend_settings = None
self.trace_enabled = False
self.verbose_enabled = False
self.event_callback = None
def launch(self):
self.running = True
def shutdown(self):
self.running = False
self.mounts = []
self.drives = []
def set_backend_settings(self, settings):
self.backend_settings = settings
def close(self):
self.closed = True
def add_drive_opts(self, file, *args, **kwargs):
if file == "/some/fail/file":
raise RuntimeError("%s: No such file or directory", file)
self.drives.append((file, kwargs['format']))
def add_drive(self, file, format=None, *args, **kwargs):
self.add_drive_opts(file, format=None, *args, **kwargs)
def inspect_os(self):
return ["/dev/guestvgf/lv_root"]
def inspect_get_mountpoints(self, dev):
mountpoints = [("/home", "/dev/mapper/guestvgf-lv_home"),
("/", "/dev/mapper/guestvgf-lv_root"),
("/boot", "/dev/vda1")]
if self.SUPPORT_RETURN_DICT and self._python_return_dict:
return dict(mountpoints)
else:
return mountpoints
def mount_options(self, options, device, mntpoint):
if mntpoint == "/":
self.root_mounted = True
else:
if not self.root_mounted:
raise RuntimeError(
"mount: %s: No such file or directory" % mntpoint)
self.mounts.append((options, device, mntpoint))
def mkdir_p(self, path):
if path not in self.files:
self.files[path] = {
"isdir": True,
"gid": 100,
"uid": 100,
"mode": 0o700
}
def read_file(self, path):
if path not in self.files:
self.files[path] = {
"isdir": False,
"content": "Hello World",
"gid": 100,
"uid": 100,
"mode": 0o700
}
return self.files[path]["content"]
def write(self, path, content):
if path not in self.files:
self.files[path] = {
"isdir": False,
"content": "Hello World",
"gid": 100,
"uid": 100,
"mode": 0o700
}
self.files[path]["content"] = content
def write_append(self, path, content):
if path not in self.files:
self.files[path] = {
"isdir": False,
"content": "Hello World",
"gid": 100,
"uid": 100,
"mode": 0o700
}
self.files[path]["content"] = self.files[path]["content"] + content
def stat(self, path):
if path not in self.files:
raise RuntimeError("No such file: " + path)
return self.files[path]["mode"]
def chown(self, uid, gid, path):
if path not in self.files:
raise RuntimeError("No such file: " + path)
if uid != -1:
self.files[path]["uid"] = uid
if gid != -1:
self.files[path]["gid"] = gid
def chmod(self, mode, path):
if path not in self.files:
raise RuntimeError("No such file: " + path)
self.files[path]["mode"] = mode
def aug_init(self, root, flags):
self.auginit = True
def aug_close(self):
self.auginit = False
def aug_get(self, cfgpath):
if not self.auginit:
raise RuntimeError("Augeus not initialized")
if cfgpath == "/files/etc/passwd/root/uid":
return 0
elif cfgpath == "/files/etc/passwd/fred/uid":
return 105
elif cfgpath == "/files/etc/passwd/joe/uid":
return 110
elif cfgpath == "/files/etc/group/root/gid":
return 0
elif cfgpath == "/files/etc/group/users/gid":
return 500
elif cfgpath == "/files/etc/group/admins/gid":
return 600
raise RuntimeError("Unknown path %s", cfgpath)
def set_trace(self, enabled):
self.trace_enabled = enabled
def set_verbose(self, enabled):
self.verbose_enabled = enabled
def set_event_callback(self, func, events):
self.event_callback = (func, events)
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