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"""
Copyright (C) 2023 Michael Ablassmeier <abi@grinser.de>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
"""
import ipaddress
from dataclasses import dataclass
@dataclass
class processInfo:
"""Process info object returned by functions calling
various qemu commands
"""
pid: int
logFile: str
err: str
out: str
pidFile: str
@dataclass
class DomainDisk:
"""Domain disk object holding information about the disk
attached to a virtual machine"""
target: str
format: str
filename: str
path: str
backingstores: list
discardOption: str
@dataclass
class nbdConn:
"""NBD connection"""
exportName: str
metaContext: str
@dataclass
class Unix(nbdConn):
"""NBD connection type unix for connection via socket file"""
backupSocket: str
tls: bool = False
def __post_init__(self):
self.uri = f"nbd+unix:///{self.exportName}?socket={self.backupSocket}"
@dataclass
class TCP(nbdConn):
"""NBD connection type tcp for remote backup"""
hostname: str
tls: bool
port: int = 10809
backupSocket: str = ""
uri_prefix = "nbd://"
def __post_init__(self):
if self.tls:
self.uri_prefix = "nbds://"
try:
ip = ipaddress.ip_address(self.hostname)
if ip.version == 6:
self.hostname = f"[{self.hostname}]"
except ValueError:
pass
self.uri = f"{self.uri_prefix}{self.hostname}:{self.port}/{self.exportName}"
@dataclass
class Extent:
"""Extent description containing information if block contains
data, offset and length of data to be read/written"""
context: str
data: bool
offset: int
length: int
@dataclass
class _ExtentObj:
"""Single Extent object as returned from the NBD server"""
context: str
length: int
type: int
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