mirror of
https://github.com/CumulusNetworks/ifupdown2.git
synced 2024-05-06 15:54:50 +00:00
134 lines
4.2 KiB
Python
Executable File
134 lines
4.2 KiB
Python
Executable File
#!/usr/bin/env python3
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# Copyright (C) 2016, 2017, 2018, 2019 Cumulus Networks, Inc. all rights reserved
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; version 2.
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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 GNU
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# 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, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA.
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#
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# https://www.gnu.org/licenses/gpl-2.0-standalone.html
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#
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# Author:
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# Julien Fortin, julien@cumulusnetworks.com
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#
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# ifupdown2 - Network Manager
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#
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import os
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import sys
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try:
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from ifupdown2.lib.log import LogManager, root_logger
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from ifupdown2.lib.status import Status
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except Exception:
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from lib.log import LogManager, root_logger
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from lib.status import Status
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# first thing first, setup the logging infra
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LogManager.get_instance()
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try:
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import ifupdown2.ifupdown.config as config
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from ifupdown2 import __version__
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config.__version__ = __version__
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from ifupdown2.lib.exceptions import ExitWithStatus, ExitWithStatusAndError
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from ifupdown2.ifupdown.client import Client
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from ifupdown2.ifupdown.exceptions import ArgvParseHelp, ArgvParseError
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except Exception:
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import ifupdown.config as config
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config.__version__ = __import__("__init__").__version__
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from lib.exceptions import ExitWithStatus, ExitWithStatusAndError
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from ifupdown.client import Client
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from ifupdown.exceptions import ArgvParseHelp, ArgvParseError
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def daemon_mode():
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""" Check ifupdown2 config to see if we should start the client """
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try:
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with open(config.IFUPDOWN2_CONF_PATH) as f:
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return "use_daemon=yes" in f.read()
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except Exception:
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return False
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def client():
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try:
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status = Client(sys.argv).run()
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except ExitWithStatusAndError as e:
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root_logger.error(e.message)
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status = e.status
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except ExitWithStatus as e:
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status = e.status
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return status
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def stand_alone():
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if not sys.argv[0].endswith("query") and os.geteuid() != 0:
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sys.stderr.write('must be root to run this command\n')
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return 1
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try:
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from ifupdown2.ifupdown.main import Ifupdown2
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from ifupdown2.lib.nlcache import NetlinkListenerWithCache, NetlinkListenerWithCacheErrorNotInitialized
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except Exception:
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from ifupdown.main import Ifupdown2
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from lib.nlcache import NetlinkListenerWithCache, NetlinkListenerWithCacheErrorNotInitialized
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ifupdown2 = Ifupdown2(daemon=False, uid=os.geteuid())
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try:
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ifupdown2.parse_argv(sys.argv)
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LogManager.get_instance().start_standalone_logging(ifupdown2.args)
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except ArgvParseError as e:
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LogManager.get_instance().root_logger().error(str(e))
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return Status.Client.STATUS_ARGV_ERROR
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except ArgvParseHelp:
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# on --help parse_args raises SystemExit, we catch it and raise a
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# custom exception ArgvParseHelp to return 0
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return 0
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try:
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status = ifupdown2.main()
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finally:
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try:
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if NetlinkListenerWithCache.is_init():
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NetlinkListenerWithCache.get_instance().cleanup()
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except NetlinkListenerWithCacheErrorNotInitialized:
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status = Status.Client.STATUS_NLERROR
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LogManager.get_instance().write("exit status %s" % status)
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return status
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def main():
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try:
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if daemon_mode():
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return client()
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else:
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return stand_alone()
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except ArgvParseHelp:
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return Status.Client.STATUS_SUCCESS
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except KeyboardInterrupt:
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return Status.Client.STATUS_KEYBOARD_INTERRUPT
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except Exception as e:
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root_logger.exception("main: %s" % str(e))
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return Status.Client.STATUS_EXCEPTION_MAIN
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if __name__ == '__main__':
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try:
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sys.exit(main())
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except KeyboardInterrupt:
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sys.exit(Status.Client.STATUS_KEYBOARD_INTERRUPT)
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