136 lines
4.9 KiB
Python
136 lines
4.9 KiB
Python
# Copyright (C) 2023 Canonical, Ltd.
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# Author: Lukas Märdian <slyon@ubuntu.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; version 3.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# from enum import IntEnum
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from io import StringIO
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import os
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from typing import IO
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from ._netplan_cffi import ffi, lib
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from .netdef import NetDefinition, NetDefinitionIterator
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from .parser import Parser
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from ._utils import _checked_lib_call
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# class NETPLAN_STORAGE(IntEnum):
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# ETC = 0
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# RUN = 1
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# LIB = 2
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class State():
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def __init__(self):
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self._ptr = lib.netplan_state_new()
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def __del__(self):
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ref = ffi.new('NetplanState **', self._ptr)
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lib.netplan_state_clear(ref)
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def __getitem__(self, netdef_id: str):
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ptr = lib.netplan_state_get_netdef(self._ptr, netdef_id.encode('utf-8'))
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if not ptr:
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raise IndexError()
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return NetDefinition(self, ptr)
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def __len__(self):
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return lib.netplan_state_get_netdefs_size(self._ptr)
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def import_parser_results(self, parser: Parser):
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_checked_lib_call(lib.netplan_state_import_parser_results, self._ptr, parser._ptr)
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# def write_yaml(filter: str, default_filename: str = None,
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# storage: NETPLAN_STORAGE = NETPLAN_STORAGE.ETC, rootdir str = None):
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# # TODO: https://bugs.launchpad.net/netplan/+bug/2003727
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# raise NotImplementedError
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def _write_yaml_file(self, filename: str = None, rootdir: str = None):
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name = filename.encode('utf-8') if filename else ffi.NULL
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root = rootdir.encode('utf-8') if rootdir else ffi.NULL
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_checked_lib_call(lib.netplan_state_write_yaml_file, self._ptr, name, root)
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def _update_yaml_hierarchy(self, default_filename: str, rootdir: str = None):
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name = default_filename.encode('utf-8')
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root = rootdir.encode('utf-8') if rootdir else ffi.NULL
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_checked_lib_call(lib.netplan_state_update_yaml_hierarchy, self._ptr, name, root)
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def _dump_yaml(self, output_file: IO):
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if isinstance(output_file, StringIO):
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fd = os.memfd_create(name='netplan_temp_file')
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_checked_lib_call(lib.netplan_state_dump_yaml, self._ptr, fd)
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size = os.lseek(fd, 0, os.SEEK_CUR)
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os.lseek(fd, 0, os.SEEK_SET)
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data = os.read(fd, size)
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os.close(fd)
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output_file.write(data.decode('utf-8'))
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else:
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fd = output_file.fileno()
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_checked_lib_call(lib.netplan_state_dump_yaml, self._ptr, fd)
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@property
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def backend(self) -> str:
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return ffi.string(lib.netplan_backend_name(lib.netplan_state_get_backend(self._ptr))).decode('utf-8')
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@property
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def netdefs(self) -> NetDefinitionIterator:
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return dict((nd.id, nd) for nd in NetDefinitionIterator(self, None))
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@property
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def ethernets(self) -> NetDefinitionIterator:
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return dict((nd.id, nd) for nd in NetDefinitionIterator(self, "ethernets"))
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@property
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def modems(self) -> NetDefinitionIterator:
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return dict((nd.id, nd) for nd in NetDefinitionIterator(self, "modems"))
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@property
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def wifis(self) -> NetDefinitionIterator:
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return dict((nd.id, nd) for nd in NetDefinitionIterator(self, "wifis"))
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@property
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def vlans(self) -> NetDefinitionIterator:
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return dict((nd.id, nd) for nd in NetDefinitionIterator(self, "vlans"))
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@property
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def bridges(self) -> NetDefinitionIterator:
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return dict((nd.id, nd) for nd in NetDefinitionIterator(self, "bridges"))
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@property
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def bonds(self) -> NetDefinitionIterator:
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return dict((nd.id, nd) for nd in NetDefinitionIterator(self, "bonds"))
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@property
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def dummy_devices(self) -> NetDefinitionIterator:
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return dict((nd.id, nd) for nd in NetDefinitionIterator(self, "dummy-devices"))
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@property
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def tunnels(self) -> NetDefinitionIterator:
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return dict((nd.id, nd) for nd in NetDefinitionIterator(self, "tunnels"))
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@property
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def virtual_ethernets(self) -> NetDefinitionIterator:
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return dict((nd.id, nd) for nd in NetDefinitionIterator(self, "virtual-ethernets"))
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@property
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def vrfs(self) -> NetDefinitionIterator:
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return dict((nd.id, nd) for nd in NetDefinitionIterator(self, "vrfs"))
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@property
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def ovs_ports(self) -> NetDefinitionIterator:
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return dict((nd.id, nd) for nd in NetDefinitionIterator(self, "_ovs-ports"))
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@property
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def nm_devices(self) -> NetDefinitionIterator:
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return dict((nd.id, nd) for nd in NetDefinitionIterator(self, "nm-devices"))
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