2015-08-18 16:29:56 +00:00
|
|
|
# Copyright 2015 Canonical, Ltd.
|
|
|
|
#
|
|
|
|
# This program is free software: you can redistribute it and/or modify
|
|
|
|
# it under the terms of the GNU Affero 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 Affero General Public License for more details.
|
|
|
|
#
|
|
|
|
# You should have received a copy of the GNU Affero General Public License
|
|
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
|
2015-10-22 21:12:59 +00:00
|
|
|
import logging
|
2016-08-19 03:33:22 +00:00
|
|
|
import os
|
2016-08-22 04:59:09 +00:00
|
|
|
import queue
|
2016-08-30 01:56:42 +00:00
|
|
|
import select
|
2016-08-13 02:31:31 +00:00
|
|
|
|
|
|
|
import netifaces
|
|
|
|
import yaml
|
|
|
|
|
2016-08-19 03:33:22 +00:00
|
|
|
from subiquitycore.async import Async
|
2016-06-30 18:17:01 +00:00
|
|
|
from subiquitycore.models import NetworkModel
|
|
|
|
from subiquitycore.ui.views import (NetworkView,
|
|
|
|
NetworkSetDefaultRouteView,
|
|
|
|
NetworkBondInterfacesView,
|
|
|
|
NetworkConfigureInterfaceView,
|
|
|
|
NetworkConfigureIPv4InterfaceView)
|
2016-08-22 04:46:56 +00:00
|
|
|
from subiquitycore.ui.views.network import ApplyingConfigWidget
|
2016-06-30 18:17:01 +00:00
|
|
|
from subiquitycore.ui.dummy import DummyView
|
2016-08-13 02:31:31 +00:00
|
|
|
from subiquitycore.controller import BaseController
|
2016-08-19 03:33:22 +00:00
|
|
|
from subiquitycore.utils import run_command_start, run_command_summarize
|
2015-09-10 18:25:54 +00:00
|
|
|
|
2016-06-30 18:17:01 +00:00
|
|
|
log = logging.getLogger("subiquitycore.controller.network")
|
2015-08-18 16:29:56 +00:00
|
|
|
|
2015-11-02 22:48:37 +00:00
|
|
|
|
2016-08-30 01:49:04 +00:00
|
|
|
class BackgroundTask:
|
|
|
|
"""Something that runs without blocking the UI and can be canceled."""
|
|
|
|
|
|
|
|
def run(self):
|
|
|
|
raise NotImplementedError(self.run)
|
|
|
|
|
|
|
|
def cancel(self):
|
|
|
|
raise NotImplementedError(self.cancel)
|
|
|
|
|
|
|
|
|
|
|
|
class BackgroundProcess(BackgroundTask):
|
|
|
|
|
|
|
|
def __init__(self, cmd):
|
|
|
|
self.cmd = cmd
|
|
|
|
|
|
|
|
def __repr__(self):
|
|
|
|
return 'BackgroundProcess(%r)'%(self.cmd,)
|
|
|
|
|
|
|
|
def run(self, observer):
|
|
|
|
self.proc = run_command_start(self.cmd)
|
|
|
|
stdout, stderr = self.proc.communicate()
|
|
|
|
result = run_command_summarize(self.proc, stdout, stderr)
|
|
|
|
if result['status'] == 0:
|
|
|
|
observer.task_succeeded()
|
|
|
|
else:
|
|
|
|
observer.task_failed()
|
|
|
|
|
|
|
|
def cancel(self):
|
|
|
|
try:
|
|
|
|
self.proc.terminate()
|
|
|
|
except ProcessLookupError:
|
|
|
|
pass # It's OK if the process has already terminated.
|
|
|
|
|
|
|
|
|
2016-08-30 01:56:42 +00:00
|
|
|
class PythonSleep(BackgroundTask):
|
|
|
|
|
|
|
|
def __init__(self, duration):
|
|
|
|
self.duration = duration
|
|
|
|
self.r, self.w = os.pipe()
|
|
|
|
|
|
|
|
def __repr__(self):
|
|
|
|
return 'PythonSleep(%r)'%(self.duration,)
|
|
|
|
|
|
|
|
def run(self, observer):
|
|
|
|
r, _, _ = select.select([self.r], [], [], self.duration)
|
|
|
|
if not r:
|
|
|
|
observer.task_succeeded()
|
|
|
|
os.close(self.r)
|
|
|
|
os.close(self.w)
|
|
|
|
|
|
|
|
def cancel(self):
|
|
|
|
os.write(self.w, b'x')
|
|
|
|
|
|
|
|
|
2016-08-30 01:49:04 +00:00
|
|
|
class TaskSequence:
|
|
|
|
def __init__(self, loop, tasks, watcher):
|
2016-08-22 04:46:56 +00:00
|
|
|
self.loop = loop
|
2016-08-30 01:49:04 +00:00
|
|
|
self.tasks = tasks
|
2016-08-22 04:46:56 +00:00
|
|
|
self.watcher = watcher
|
|
|
|
self.canceled = False
|
2016-08-22 05:01:09 +00:00
|
|
|
self.stage = None
|
2016-08-30 01:49:04 +00:00
|
|
|
self.curtask = None
|
|
|
|
self.incoming = queue.Queue()
|
|
|
|
self.outgoing = queue.Queue()
|
|
|
|
self.pipe = self.loop.watch_pipe(self._thread_callback)
|
2016-08-19 03:44:29 +00:00
|
|
|
|
|
|
|
def run(self):
|
|
|
|
self._run1()
|
|
|
|
|
2016-08-22 04:46:56 +00:00
|
|
|
def cancel(self):
|
2016-08-30 01:49:04 +00:00
|
|
|
if self.curtask is not None:
|
2016-08-30 01:56:42 +00:00
|
|
|
log.debug("canceling %s", self.curtask)
|
2016-08-30 01:49:04 +00:00
|
|
|
self.curtask.cancel()
|
2016-08-22 04:46:56 +00:00
|
|
|
self.canceled = True
|
|
|
|
|
2016-08-19 03:44:29 +00:00
|
|
|
def _run1(self):
|
2016-08-30 01:49:04 +00:00
|
|
|
self.stage, self.curtask = self.tasks[0]
|
|
|
|
self.tasks = self.tasks[1:]
|
|
|
|
log.debug('running %s for stage %s', self.curtask, self.stage)
|
|
|
|
def cb(fut):
|
|
|
|
# We do this just so that any exceptions raised don't get lost.
|
|
|
|
# Vomiting a traceback all over the console is nasty, but not as
|
|
|
|
# nasty as silently doing nothing.
|
|
|
|
fut.result()
|
|
|
|
Async.pool.submit(self.curtask.run, self).add_done_callback(cb)
|
2016-08-22 04:59:09 +00:00
|
|
|
|
|
|
|
def call_from_thread(self, func, *args):
|
2016-08-30 01:49:04 +00:00
|
|
|
log.debug('call_from_thread %s %s', func, args)
|
|
|
|
self.incoming.put((func, args))
|
2016-08-19 03:44:29 +00:00
|
|
|
os.write(self.pipe, b'x')
|
2016-08-30 01:49:04 +00:00
|
|
|
self.outgoing.get()
|
2016-08-19 03:44:29 +00:00
|
|
|
|
2016-08-22 04:59:09 +00:00
|
|
|
def _thread_callback(self, ignored):
|
2016-08-30 01:49:04 +00:00
|
|
|
func, args = self.incoming.get()
|
2016-08-22 04:59:09 +00:00
|
|
|
func(*args)
|
2016-08-30 01:49:04 +00:00
|
|
|
self.outgoing.put(None)
|
|
|
|
|
|
|
|
def task_succeeded(self):
|
|
|
|
self.call_from_thread(self._task_succeeded)
|
2016-08-22 04:59:09 +00:00
|
|
|
|
2016-08-30 01:49:04 +00:00
|
|
|
def _task_succeeded(self):
|
2016-08-22 04:46:56 +00:00
|
|
|
if self.canceled:
|
|
|
|
return
|
2016-08-30 01:49:04 +00:00
|
|
|
self.watcher.task_complete(self.stage)
|
|
|
|
if len(self.tasks) == 0:
|
|
|
|
self.watcher.tasks_finished()
|
2016-08-19 03:44:29 +00:00
|
|
|
else:
|
|
|
|
self._run1()
|
|
|
|
|
2016-08-30 01:49:04 +00:00
|
|
|
def task_failed(self):
|
|
|
|
if self.canceled:
|
|
|
|
return
|
|
|
|
self.call_from_thread(self.watcher.task_error, self.stage)
|
|
|
|
|
2016-08-19 03:44:29 +00:00
|
|
|
|
2016-07-26 02:16:46 +00:00
|
|
|
class NetworkController(BaseController):
|
2015-08-31 15:55:46 +00:00
|
|
|
def __init__(self, common):
|
|
|
|
super().__init__(common)
|
2015-09-03 16:48:40 +00:00
|
|
|
self.model = NetworkModel(self.prober, self.opts)
|
2015-08-18 16:29:56 +00:00
|
|
|
|
|
|
|
def network(self):
|
2016-08-22 23:39:26 +00:00
|
|
|
# The network signal is the one that is called when we enter
|
|
|
|
# the network configuration from the preceding or following
|
|
|
|
# screen. We clear any existing state, probe for the current
|
|
|
|
# state and then invoke the 'start' signal, which is what the
|
|
|
|
# sub screens will return to, so that the network state does
|
|
|
|
# not get re-probed when they return, which would throw away
|
|
|
|
# any configuration made in the sub-screen!
|
|
|
|
self.model.reset()
|
|
|
|
log.info("probing for network devices")
|
|
|
|
self.model.probe_network()
|
|
|
|
self.signal.emit_signal('menu:network:main:start')
|
|
|
|
|
|
|
|
def start(self):
|
2015-08-18 16:29:56 +00:00
|
|
|
title = "Network connections"
|
|
|
|
excerpt = ("Configure at least the main interface this server will "
|
2016-08-13 02:31:31 +00:00
|
|
|
"use to talk to the store.")
|
2015-08-18 16:29:56 +00:00
|
|
|
footer = ("Additional networking info here")
|
|
|
|
self.ui.set_header(title, excerpt)
|
2015-08-31 15:55:46 +00:00
|
|
|
self.ui.set_footer(footer, 20)
|
2015-08-18 16:29:56 +00:00
|
|
|
self.ui.set_body(NetworkView(self.model, self.signal))
|
|
|
|
|
2016-08-13 02:31:31 +00:00
|
|
|
def network_finish(self, config):
|
2016-08-13 04:13:22 +00:00
|
|
|
log.debug("network config: \n%s", yaml.dump(config, default_flow_style=False))
|
2016-08-16 19:25:58 +00:00
|
|
|
|
2016-08-13 02:31:31 +00:00
|
|
|
if self.opts.dry_run:
|
2016-08-19 03:16:24 +00:00
|
|
|
if hasattr(self, 'tried_once'):
|
2016-08-30 01:49:04 +00:00
|
|
|
tasks = [
|
|
|
|
('one', BackgroundProcess(['sleep', '1'])),
|
2016-08-30 01:56:42 +00:00
|
|
|
('two', PythonSleep(1)),
|
2016-08-30 01:49:04 +00:00
|
|
|
('three', BackgroundProcess(['sleep', '1'])),
|
2016-08-19 03:16:24 +00:00
|
|
|
]
|
|
|
|
else:
|
|
|
|
self.tried_once = True
|
2016-08-30 01:49:04 +00:00
|
|
|
tasks = [
|
|
|
|
('one', BackgroundProcess(['sleep', '1'])),
|
|
|
|
('two', BackgroundProcess(['sleep', '1'])),
|
|
|
|
('three', BackgroundProcess(['false'])),
|
|
|
|
('four', BackgroundProcess(['sleep 1'])),
|
2016-08-19 03:16:24 +00:00
|
|
|
]
|
2016-08-13 02:31:31 +00:00
|
|
|
else:
|
|
|
|
with open('/etc/netplan/01-console-conf.yaml', 'w') as w:
|
|
|
|
w.write(yaml.dump(config))
|
2016-08-30 01:49:04 +00:00
|
|
|
tasks = [
|
|
|
|
('generate', BackgroundProcess(['/lib/netplan/generate'])),
|
|
|
|
('apply', BackgroundProcess(['netplan', 'apply'])),
|
|
|
|
('timeout', BackgroundProcess(['/lib/systemd/systemd-networkd-wait-online', '--timeout=30'])),
|
2016-08-19 03:16:24 +00:00
|
|
|
]
|
2016-08-22 04:46:56 +00:00
|
|
|
|
2016-08-22 04:59:09 +00:00
|
|
|
def cancel():
|
|
|
|
self.cs.cancel()
|
2016-08-30 01:49:04 +00:00
|
|
|
self.task_error('canceled')
|
|
|
|
self.acw = ApplyingConfigWidget(len(tasks), cancel)
|
2016-08-22 04:59:09 +00:00
|
|
|
self.ui.frame.body.show_overlay(self.acw)
|
|
|
|
|
2016-08-30 01:49:04 +00:00
|
|
|
self.cs = TaskSequence(self.loop, tasks, self)
|
2016-08-22 04:59:09 +00:00
|
|
|
self.cs.run()
|
|
|
|
|
2016-08-30 01:49:04 +00:00
|
|
|
def task_complete(self, stage):
|
2016-08-22 04:59:09 +00:00
|
|
|
self.acw.advance()
|
|
|
|
|
2016-08-30 01:49:04 +00:00
|
|
|
def task_error(self, stage):
|
2016-08-22 04:59:09 +00:00
|
|
|
self.ui.frame.body.remove_overlay(self.acw)
|
|
|
|
self.ui.frame.body.show_network_error(stage)
|
|
|
|
|
2016-08-30 01:49:04 +00:00
|
|
|
def tasks_finished(self):
|
2016-08-22 04:59:09 +00:00
|
|
|
self.signal.emit_signal('menu:identity:main')
|
2015-09-10 18:25:54 +00:00
|
|
|
|
2016-08-16 16:59:19 +00:00
|
|
|
def set_default_v4_route(self):
|
2015-10-08 22:10:54 +00:00
|
|
|
self.ui.set_header("Default route")
|
2015-10-08 20:11:53 +00:00
|
|
|
self.ui.set_body(NetworkSetDefaultRouteView(self.model,
|
2016-08-16 16:59:19 +00:00
|
|
|
netifaces.AF_INET,
|
|
|
|
self.signal))
|
|
|
|
|
|
|
|
def set_default_v6_route(self):
|
|
|
|
self.ui.set_header("Default route")
|
|
|
|
self.ui.set_body(NetworkSetDefaultRouteView(self.model,
|
|
|
|
netifaces.AF_INET6,
|
2015-10-08 20:11:53 +00:00
|
|
|
self.signal))
|
2015-08-18 16:29:56 +00:00
|
|
|
|
2015-11-09 20:35:54 +00:00
|
|
|
def bond_interfaces(self):
|
|
|
|
self.ui.set_header("Bond interfaces")
|
|
|
|
self.ui.set_body(NetworkBondInterfacesView(self.model,
|
|
|
|
self.signal))
|
|
|
|
|
2015-10-08 22:10:54 +00:00
|
|
|
def network_configure_interface(self, iface):
|
|
|
|
self.ui.set_header("Network interface {}".format(iface))
|
|
|
|
self.ui.set_body(NetworkConfigureInterfaceView(self.model,
|
|
|
|
self.signal,
|
|
|
|
iface))
|
|
|
|
|
|
|
|
def network_configure_ipv4_interface(self, iface):
|
|
|
|
self.model.prev_signal = ('Back to configure interface menu',
|
|
|
|
'network:configure-interface-menu',
|
|
|
|
'network_configure_interface')
|
|
|
|
self.ui.set_header("Network interface {} manual IPv4 "
|
|
|
|
"configuration".format(iface))
|
|
|
|
self.ui.set_body(NetworkConfigureIPv4InterfaceView(self.model,
|
|
|
|
self.signal,
|
|
|
|
iface))
|
|
|
|
|
|
|
|
def network_configure_ipv6_interface(self, iface):
|
|
|
|
self.model.prev_signal = ('Back to configure interface menu',
|
|
|
|
'network:configure-interface-menu',
|
|
|
|
'network_configure_interface')
|
|
|
|
self.ui.set_body(DummyView(self.signal))
|
|
|
|
|
2015-08-18 16:29:56 +00:00
|
|
|
def install_network_driver(self):
|
|
|
|
self.ui.set_body(DummyView(self.signal))
|
2016-08-13 02:31:31 +00:00
|
|
|
|