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- Committer: Teddy Hogeborn
- Date: 2016-07-03 03:32:28 UTC
- Revision ID: teddy@recompile.se-20160703033228-cafpnnfs53kdg52g
Change all http:// URLs to https:// wherever possible.
* INSTALL (Prerequisites/Libraries/Mandos Server): Change "http://" to
"https://" wherever possible.
* Makefile (FORTIFY): - '' -
* mandos.xml (SEE ALSO): - '' -
* plugin-runner.c (main): - '' -
* plugins.d/mandos-client.c (start_mandos_communication): - '' -
* plugins.d/mandos-client.xml (SEE ALSO): - '' -
* INSTALL (Prerequisites/Libraries/Mandos Server): Change "http://" to
"https://" wherever possible.
* Makefile (FORTIFY): - '' -
* mandos.xml (SEE ALSO): - '' -
* plugin-runner.c (main): - '' -
* plugins.d/mandos-client.c (start_mandos_communication): - '' -
* plugins.d/mandos-client.xml (SEE ALSO): - '' -
- files added:
- initramfs-tools-hook-conf
- files removed:
- initramfs-tools-conf
- files modified:
- DBUS-API
added
removed
mandos
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1
#!/usr/bin/python
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# -*- mode: python; coding: utf-8 -*-
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#
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#
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# Mandos server - give out binary blobs to connecting clients.
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#
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#
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# This program is partly derived from an example program for an Avahi
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# service publisher, downloaded from
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# <http://avahi.org/wiki/PythonPublishExample>. This includes the
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# methods "add", "remove", "server_state_changed",
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# "entry_group_state_changed", "cleanup", and "activate" in the
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# "AvahiService" class, and some lines in "main".
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#
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#
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# Everything else is
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# Copyright © 2008-2018 Teddy Hogeborn
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# Copyright © 2008-2018 Björn Påhlsson
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#
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# This file is part of Mandos.
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#
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# Mandos is free software: you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by
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# Copyright © 2008-2016 Teddy Hogeborn
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# Copyright © 2008-2016 Björn Påhlsson
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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, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Mandos is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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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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#
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# You should have received a copy of the GNU General Public License
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# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
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#
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# along with this program. If not, see
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# <http://www.gnu.org/licenses/>.
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#
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# Contact the authors at <mandos@recompile.se>.
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#
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#
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from __future__ import (division, absolute_import, print_function,
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unicode_literals)
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if sys.version_info.major == 2:
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str = unicode
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version = "1.7.19"
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version = "1.7.10"
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stored_state_file = "clients.pickle"
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logger = logging.getLogger()
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if_nametoindex = ctypes.cdll.LoadLibrary(
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ctypes.util.find_library("c")).if_nametoindex
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except (OSError, AttributeError):
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def if_nametoindex(interface):
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"Get an interface index the hard way, i.e. using fcntl()"
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SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
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def initlogger(debug, level=logging.WARNING):
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"""init logger and add loglevel"""
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global syslogger
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syslogger = (logging.handlers.SysLogHandler(
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facility=logging.handlers.SysLogHandler.LOG_DAEMON,
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address="/dev/log"))
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facility = logging.handlers.SysLogHandler.LOG_DAEMON,
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address = "/dev/log"))
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syslogger.setFormatter(logging.Formatter
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('Mandos [%(process)d]: %(levelname)s:'
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' %(message)s'))
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logger.addHandler(syslogger)
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if debug:
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console = logging.StreamHandler()
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console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
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class PGPEngine(object):
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"""A simple class for OpenPGP symmetric encryption & decryption"""
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def __init__(self):
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self.tempdir = tempfile.mkdtemp(prefix="mandos-")
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self.gpg = "gpg"
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# Only GPG version 1 has the --no-use-agent option.
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if self.gpg == "gpg" or self.gpg.endswith("/gpg"):
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self.gnupgargs.append("--no-use-agent")
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def __enter__(self):
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return self
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def __exit__(self, exc_type, exc_value, traceback):
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self._cleanup()
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return False
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def __del__(self):
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self._cleanup()
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def _cleanup(self):
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if self.tempdir is not None:
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# Delete contents of tempdir
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for root, dirs, files in os.walk(self.tempdir,
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topdown=False):
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topdown = False):
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for filename in files:
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os.remove(os.path.join(root, filename))
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for dirname in dirs:
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# Remove tempdir
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os.rmdir(self.tempdir)
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self.tempdir = None
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def password_encode(self, password):
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# Passphrase can not be empty and can not contain newlines or
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# NUL bytes. So we prefix it and hex encode it.
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.replace(b"\n", b"\\n")
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.replace(b"\0", b"\\x00"))
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return encoded
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def encrypt(self, data, password):
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passphrase = self.password_encode(password)
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with tempfile.NamedTemporaryFile(
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'--passphrase-file',
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passfile.name]
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+ self.gnupgargs,
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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ciphertext, err = proc.communicate(input=data)
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stdin = subprocess.PIPE,
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stdout = subprocess.PIPE,
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stderr = subprocess.PIPE)
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ciphertext, err = proc.communicate(input = data)
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if proc.returncode != 0:
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raise PGPError(err)
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return ciphertext
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def decrypt(self, data, password):
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passphrase = self.password_encode(password)
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with tempfile.NamedTemporaryFile(
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dir=self.tempdir) as passfile:
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dir = self.tempdir) as passfile:
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passfile.write(passphrase)
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passfile.flush()
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proc = subprocess.Popen([self.gpg, '--decrypt',
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'--passphrase-file',
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passfile.name]
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+ self.gnupgargs,
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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decrypted_plaintext, err = proc.communicate(input=data)
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stdin = subprocess.PIPE,
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stdout = subprocess.PIPE,
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stderr = subprocess.PIPE)
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decrypted_plaintext, err = proc.communicate(input = data)
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if proc.returncode != 0:
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raise PGPError(err)
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return decrypted_plaintext
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# Pretend that we have an Avahi module
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class Avahi(object):
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"""This isn't so much a class as it is a module-like namespace.
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It is instantiated once, and simulates having an Avahi module."""
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IF_UNSPEC = -1 # avahi-common/address.h
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PROTO_UNSPEC = -1 # avahi-common/address.h
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PROTO_INET = 0 # avahi-common/address.h
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PROTO_INET6 = 1 # avahi-common/address.h
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IF_UNSPEC = -1 # avahi-common/address.h
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PROTO_UNSPEC = -1 # avahi-common/address.h
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PROTO_INET = 0 # avahi-common/address.h
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PROTO_INET6 = 1 # avahi-common/address.h
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DBUS_NAME = "org.freedesktop.Avahi"
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DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
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DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
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DBUS_PATH_SERVER = "/"
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def string_array_to_txt_array(self, t):
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return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
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for s in t), signature="ay")
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ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
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ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
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ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
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SERVER_INVALID = 0 # avahi-common/defs.h
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SERVER_REGISTERING = 1 # avahi-common/defs.h
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SERVER_RUNNING = 2 # avahi-common/defs.h
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SERVER_COLLISION = 3 # avahi-common/defs.h
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SERVER_FAILURE = 4 # avahi-common/defs.h
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ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
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ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
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ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
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SERVER_INVALID = 0 # avahi-common/defs.h
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SERVER_REGISTERING = 1 # avahi-common/defs.h
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SERVER_RUNNING = 2 # avahi-common/defs.h
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SERVER_COLLISION = 3 # avahi-common/defs.h
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SERVER_FAILURE = 4 # avahi-common/defs.h
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avahi = Avahi()
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class AvahiError(Exception):
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def __init__(self, value, *args, **kwargs):
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self.value = value
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class AvahiService(object):
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"""An Avahi (Zeroconf) service.
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Attributes:
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interface: integer; avahi.IF_UNSPEC or an interface index.
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Used to optionally bind to the specified interface.
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server: D-Bus Server
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bus: dbus.SystemBus()
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"""
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def __init__(self,
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interface=avahi.IF_UNSPEC,
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name=None,
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servicetype=None,
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port=None,
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TXT=None,
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domain="",
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host="",
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max_renames=32768,
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protocol=avahi.PROTO_UNSPEC,
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bus=None):
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interface = avahi.IF_UNSPEC,
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name = None,
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servicetype = None,
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port = None,
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TXT = None,
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domain = "",
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host = "",
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max_renames = 32768,
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protocol = avahi.PROTO_UNSPEC,
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bus = None):
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self.interface = interface
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self.name = name
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self.type = servicetype
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self.server = None
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self.bus = bus
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self.entry_group_state_changed_match = None
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def rename(self, remove=True):
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"""Derived from the Avahi example code"""
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if self.rename_count >= self.max_renames:
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logger.critical("D-Bus Exception", exc_info=error)
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self.cleanup()
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os._exit(1)
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def remove(self):
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"""Derived from the Avahi example code"""
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if self.entry_group_state_changed_match is not None:
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self.entry_group_state_changed_match = None
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if self.group is not None:
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self.group.Reset()
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def add(self):
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"""Derived from the Avahi example code"""
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self.remove()
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dbus.UInt16(self.port),
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avahi.string_array_to_txt_array(self.TXT))
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self.group.Commit()
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def entry_group_state_changed(self, state, error):
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"""Derived from the Avahi example code"""
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logger.debug("Avahi entry group state change: %i", state)
426
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if state == avahi.ENTRY_GROUP_ESTABLISHED:
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logger.debug("Zeroconf service established.")
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elif state == avahi.ENTRY_GROUP_COLLISION:
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logger.critical("Avahi: Error in group state changed %s",
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str(error))
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raise AvahiGroupError("State changed: {!s}".format(error))
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def cleanup(self):
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"""Derived from the Avahi example code"""
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if self.group is not None:
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pass
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self.group = None
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self.remove()
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def server_state_changed(self, state, error=None):
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"""Derived from the Avahi example code"""
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logger.debug("Avahi server state change: %i", state)
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logger.debug("Unknown state: %r", state)
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else:
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logger.debug("Unknown state: %r: %r", state, error)
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def activate(self):
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"""Derived from the Avahi example code"""
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if self.server is None:
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class AvahiServiceToSyslog(AvahiService):
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def rename(self, *args, **kwargs):
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"""Add the new name to the syslog messages"""
499
ret = super(AvahiServiceToSyslog, self).rename(*args, **kwargs)
495
ret = AvahiService.rename(self, *args, **kwargs)
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syslogger.setFormatter(logging.Formatter(
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'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
502
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.format(self.name)))
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return ret
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# Pretend that we have a GnuTLS module
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class GnuTLS(object):
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"""This isn't so much a class as it is a module-like namespace.
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It is instantiated once, and simulates having a GnuTLS module."""
510
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library = ctypes.util.find_library("gnutls")
512
if library is None:
513
library = ctypes.util.find_library("gnutls-deb0")
514
_library = ctypes.cdll.LoadLibrary(library)
515
del library
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_library = ctypes.cdll.LoadLibrary(
507
ctypes.util.find_library("gnutls"))
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_need_version = b"3.3.0"
517
518
509
def __init__(self):
519
# Need to use "self" here, since this method is called before
520
# the assignment to the "gnutls" global variable happens.
521
if self.check_version(self._need_version) is None:
522
raise self.Error("Needs GnuTLS {} or later"
523
.format(self._need_version))
524
510
# Need to use class name "GnuTLS" here, since this method is
511
# called before the assignment to the "gnutls" global variable
512
# happens.
513
if GnuTLS.check_version(self._need_version) is None:
514
raise GnuTLS.Error("Needs GnuTLS {} or later"
515
.format(self._need_version))
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517
# Unless otherwise indicated, the constants and types below are
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# all from the gnutls/gnutls.h C header file.
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519
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# Constants
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E_SUCCESS = 0
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E_INTERRUPTED = -52
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CRD_CERTIFICATE = 1
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E_NO_CERTIFICATE_FOUND = -49
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OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
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530
539
531
# Types
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class session_int(ctypes.Structure):
541
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_fields_ = []
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session_t = ctypes.POINTER(session_int)
543
544
535
class certificate_credentials_st(ctypes.Structure):
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536
_fields_ = []
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537
certificate_credentials_t = ctypes.POINTER(
547
538
certificate_credentials_st)
548
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certificate_type_t = ctypes.c_int
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550
540
class datum_t(ctypes.Structure):
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541
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
552
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('size', ctypes.c_uint)]
553
554
543
class openpgp_crt_int(ctypes.Structure):
555
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_fields_ = []
556
545
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
557
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
546
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
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547
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
559
548
credentials_type_t = ctypes.c_int
560
549
transport_ptr_t = ctypes.c_void_p
561
550
close_request_t = ctypes.c_int
562
551
563
552
# Exceptions
564
553
class Error(Exception):
565
554
# We need to use the class name "GnuTLS" here, since this
566
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# exception might be raised from within GnuTLS.__init__,
567
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# which is called before the assignment to the "gnutls"
568
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# global variable has happened.
569
def __init__(self, message=None, code=None, args=()):
558
def __init__(self, message = None, code = None, args=()):
570
559
# Default usage is by a message string, but if a return
571
560
# code is passed, convert it to a string with
572
561
# gnutls.strerror()
575
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message = GnuTLS.strerror(code)
576
565
return super(GnuTLS.Error, self).__init__(
577
566
message, *args)
578
567
579
568
class CertificateSecurityError(Error):
580
569
pass
581
570
582
571
# Classes
583
572
class Credentials(object):
584
573
def __init__(self):
586
575
gnutls.certificate_allocate_credentials(
587
576
ctypes.byref(self._c_object))
588
577
self.type = gnutls.CRD_CERTIFICATE
589
578
590
579
def __del__(self):
591
580
gnutls.certificate_free_credentials(self._c_object)
592
581
593
582
class ClientSession(object):
594
def __init__(self, socket, credentials=None):
583
def __init__(self, socket, credentials = None):
595
584
self._c_object = gnutls.session_t()
596
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gnutls.init(ctypes.byref(self._c_object), gnutls.CLIENT)
597
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gnutls.set_default_priority(self._c_object)
605
594
ctypes.cast(credentials._c_object,
606
595
ctypes.c_void_p))
607
596
self.credentials = credentials
608
597
609
598
def __del__(self):
610
599
gnutls.deinit(self._c_object)
611
600
612
601
def handshake(self):
613
602
return gnutls.handshake(self._c_object)
614
603
615
604
def send(self, data):
616
605
data = bytes(data)
617
606
data_len = len(data)
619
608
data_len -= gnutls.record_send(self._c_object,
620
609
data[-data_len:],
621
610
data_len)
622
611
623
612
def bye(self):
624
613
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
625
614
626
615
# Error handling functions
627
616
def _error_code(result):
628
617
"""A function to raise exceptions on errors, suitable
630
619
if result >= 0:
631
620
return result
632
621
if result == gnutls.E_NO_CERTIFICATE_FOUND:
633
raise gnutls.CertificateSecurityError(code=result)
634
raise gnutls.Error(code=result)
635
622
raise gnutls.CertificateSecurityError(code = result)
623
raise gnutls.Error(code = result)
624
636
625
def _retry_on_error(result, func, arguments):
637
626
"""A function to retry on some errors, suitable
638
627
for the 'errcheck' attribute on ctypes functions"""
641
630
return _error_code(result)
642
631
result = func(*arguments)
643
632
return result
644
633
645
634
# Unless otherwise indicated, the function declarations below are
646
635
# all from the gnutls/gnutls.h C header file.
647
636
648
637
# Functions
649
638
priority_set_direct = _library.gnutls_priority_set_direct
650
639
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
651
640
ctypes.POINTER(ctypes.c_char_p)]
652
641
priority_set_direct.restype = _error_code
653
642
654
643
init = _library.gnutls_init
655
644
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
656
645
init.restype = _error_code
657
646
658
647
set_default_priority = _library.gnutls_set_default_priority
659
648
set_default_priority.argtypes = [session_t]
660
649
set_default_priority.restype = _error_code
661
650
662
651
record_send = _library.gnutls_record_send
663
652
record_send.argtypes = [session_t, ctypes.c_void_p,
664
653
ctypes.c_size_t]
665
654
record_send.restype = ctypes.c_ssize_t
666
655
record_send.errcheck = _retry_on_error
667
656
668
657
certificate_allocate_credentials = (
669
658
_library.gnutls_certificate_allocate_credentials)
670
659
certificate_allocate_credentials.argtypes = [
671
660
ctypes.POINTER(certificate_credentials_t)]
672
661
certificate_allocate_credentials.restype = _error_code
673
662
674
663
certificate_free_credentials = (
675
664
_library.gnutls_certificate_free_credentials)
676
certificate_free_credentials.argtypes = [
677
certificate_credentials_t]
665
certificate_free_credentials.argtypes = [certificate_credentials_t]
678
666
certificate_free_credentials.restype = None
679
667
680
668
handshake_set_private_extensions = (
681
669
_library.gnutls_handshake_set_private_extensions)
682
670
handshake_set_private_extensions.argtypes = [session_t,
683
671
ctypes.c_int]
684
672
handshake_set_private_extensions.restype = None
685
673
686
674
credentials_set = _library.gnutls_credentials_set
687
675
credentials_set.argtypes = [session_t, credentials_type_t,
688
676
ctypes.c_void_p]
689
677
credentials_set.restype = _error_code
690
678
691
679
strerror = _library.gnutls_strerror
692
680
strerror.argtypes = [ctypes.c_int]
693
681
strerror.restype = ctypes.c_char_p
694
682
695
683
certificate_type_get = _library.gnutls_certificate_type_get
696
684
certificate_type_get.argtypes = [session_t]
697
685
certificate_type_get.restype = _error_code
698
686
699
687
certificate_get_peers = _library.gnutls_certificate_get_peers
700
688
certificate_get_peers.argtypes = [session_t,
701
689
ctypes.POINTER(ctypes.c_uint)]
702
690
certificate_get_peers.restype = ctypes.POINTER(datum_t)
703
691
704
692
global_set_log_level = _library.gnutls_global_set_log_level
705
693
global_set_log_level.argtypes = [ctypes.c_int]
706
694
global_set_log_level.restype = None
707
695
708
696
global_set_log_function = _library.gnutls_global_set_log_function
709
697
global_set_log_function.argtypes = [log_func]
710
698
global_set_log_function.restype = None
711
699
712
700
deinit = _library.gnutls_deinit
713
701
deinit.argtypes = [session_t]
714
702
deinit.restype = None
715
703
716
704
handshake = _library.gnutls_handshake
717
705
handshake.argtypes = [session_t]
718
706
handshake.restype = _error_code
719
707
handshake.errcheck = _retry_on_error
720
708
721
709
transport_set_ptr = _library.gnutls_transport_set_ptr
722
710
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
723
711
transport_set_ptr.restype = None
724
712
725
713
bye = _library.gnutls_bye
726
714
bye.argtypes = [session_t, close_request_t]
727
715
bye.restype = _error_code
728
716
bye.errcheck = _retry_on_error
729
717
730
718
check_version = _library.gnutls_check_version
731
719
check_version.argtypes = [ctypes.c_char_p]
732
720
check_version.restype = ctypes.c_char_p
733
721
734
722
# All the function declarations below are from gnutls/openpgp.h
735
723
736
724
openpgp_crt_init = _library.gnutls_openpgp_crt_init
737
725
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
738
726
openpgp_crt_init.restype = _error_code
739
727
740
728
openpgp_crt_import = _library.gnutls_openpgp_crt_import
741
729
openpgp_crt_import.argtypes = [openpgp_crt_t,
742
730
ctypes.POINTER(datum_t),
743
731
openpgp_crt_fmt_t]
744
732
openpgp_crt_import.restype = _error_code
745
733
746
734
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
747
735
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
748
736
ctypes.POINTER(ctypes.c_uint)]
749
737
openpgp_crt_verify_self.restype = _error_code
750
738
751
739
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
752
740
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
753
741
openpgp_crt_deinit.restype = None
754
742
755
743
openpgp_crt_get_fingerprint = (
756
744
_library.gnutls_openpgp_crt_get_fingerprint)
757
745
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
759
747
ctypes.POINTER(
760
748
ctypes.c_size_t)]
761
749
openpgp_crt_get_fingerprint.restype = _error_code
762
750
763
751
# Remove non-public functions
764
752
del _error_code, _retry_on_error
765
753
# Create the global "gnutls" object, simulating a module
766
754
gnutls = GnuTLS()
767
755
768
769
756
def call_pipe(connection, # : multiprocessing.Connection
770
757
func, *args, **kwargs):
771
758
"""This function is meant to be called by multiprocessing.Process
772
759
773
760
This function runs func(*args, **kwargs), and writes the resulting
774
761
return value on the provided multiprocessing.Connection.
775
762
"""
776
763
connection.send(func(*args, **kwargs))
777
764
connection.close()
778
765
779
780
766
class Client(object):
781
767
"""A representation of a client host served by this server.
782
768
783
769
Attributes:
784
770
approved: bool(); 'None' if not yet approved/disapproved
785
771
approval_delay: datetime.timedelta(); Time to wait for approval
822
808
disabled, or None
823
809
server_settings: The server_settings dict from main()
824
810
"""
825
811
826
812
runtime_expansions = ("approval_delay", "approval_duration",
827
813
"created", "enabled", "expires",
828
814
"fingerprint", "host", "interval",
839
825
"approved_by_default": "True",
840
826
"enabled": "True",
841
827
}
842
828
843
829
@staticmethod
844
830
def config_parser(config):
845
831
"""Construct a new dict of client settings of this form:
852
838
for client_name in config.sections():
853
839
section = dict(config.items(client_name))
854
840
client = settings[client_name] = {}
855
841
856
842
client["host"] = section["host"]
857
843
# Reformat values from string types to Python types
858
844
client["approved_by_default"] = config.getboolean(
859
845
client_name, "approved_by_default")
860
846
client["enabled"] = config.getboolean(client_name,
861
847
"enabled")
862
848
863
849
# Uppercase and remove spaces from fingerprint for later
864
850
# comparison purposes with return value from the
865
851
# fingerprint() function
889
875
client["last_approval_request"] = None
890
876
client["last_checked_ok"] = None
891
877
client["last_checker_status"] = -2
892
878
893
879
return settings
894
895
def __init__(self, settings, name=None, server_settings=None):
880
881
def __init__(self, settings, name = None, server_settings=None):
896
882
self.name = name
897
883
if server_settings is None:
898
884
server_settings = {}
900
886
# adding all client settings
901
887
for setting, value in settings.items():
902
888
setattr(self, setting, value)
903
889
904
890
if self.enabled:
905
891
if not hasattr(self, "last_enabled"):
906
892
self.last_enabled = datetime.datetime.utcnow()
910
896
else:
911
897
self.last_enabled = None
912
898
self.expires = None
913
899
914
900
logger.debug("Creating client %r", self.name)
915
901
logger.debug(" Fingerprint: %s", self.fingerprint)
916
902
self.created = settings.get("created",
917
903
datetime.datetime.utcnow())
918
904
919
905
# attributes specific for this server instance
920
906
self.checker = None
921
907
self.checker_initiator_tag = None
930
916
for attr in self.__dict__.keys()
931
917
if not attr.startswith("_")]
932
918
self.client_structure.append("client_structure")
933
919
934
920
for name, t in inspect.getmembers(
935
921
type(self), lambda obj: isinstance(obj, property)):
936
922
if not name.startswith("_"):
937
923
self.client_structure.append(name)
938
924
939
925
# Send notice to process children that client state has changed
940
926
def send_changedstate(self):
941
927
with self.changedstate:
942
928
self.changedstate.notify_all()
943
929
944
930
def enable(self):
945
931
"""Start this client's checker and timeout hooks"""
946
932
if getattr(self, "enabled", False):
951
937
self.last_enabled = datetime.datetime.utcnow()
952
938
self.init_checker()
953
939
self.send_changedstate()
954
940
955
941
def disable(self, quiet=True):
956
942
"""Disable this client."""
957
943
if not getattr(self, "enabled", False):
971
957
self.send_changedstate()
972
958
# Do not run this again if called by a GLib.timeout_add
973
959
return False
974
960
975
961
def __del__(self):
976
962
self.disable()
977
963
978
964
def init_checker(self):
979
965
# Schedule a new checker to be started an 'interval' from now,
980
966
# and every interval from then on.
990
976
int(self.timeout.total_seconds() * 1000), self.disable)
991
977
# Also start a new checker *right now*.
992
978
self.start_checker()
993
979
994
980
def checker_callback(self, source, condition, connection,
995
981
command):
996
982
"""The checker has completed, so take appropriate actions."""
999
985
# Read return code from connection (see call_pipe)
1000
986
returncode = connection.recv()
1001
987
connection.close()
1002
988
1003
989
if returncode >= 0:
1004
990
self.last_checker_status = returncode
1005
991
self.last_checker_signal = None
1015
1001
logger.warning("Checker for %(name)s crashed?",
1016
1002
vars(self))
1017
1003
return False
1018
1004
1019
1005
def checked_ok(self):
1020
1006
"""Assert that the client has been seen, alive and well."""
1021
1007
self.last_checked_ok = datetime.datetime.utcnow()
1022
1008
self.last_checker_status = 0
1023
1009
self.last_checker_signal = None
1024
1010
self.bump_timeout()
1025
1011
1026
1012
def bump_timeout(self, timeout=None):
1027
1013
"""Bump up the timeout for this client."""
1028
1014
if timeout is None:
1034
1020
self.disable_initiator_tag = GLib.timeout_add(
1035
1021
int(timeout.total_seconds() * 1000), self.disable)
1036
1022
self.expires = datetime.datetime.utcnow() + timeout
1037
1023
1038
1024
def need_approval(self):
1039
1025
self.last_approval_request = datetime.datetime.utcnow()
1040
1026
1041
1027
def start_checker(self):
1042
1028
"""Start a new checker subprocess if one is not running.
1043
1029
1044
1030
If a checker already exists, leave it running and do
1045
1031
nothing."""
1046
1032
# The reason for not killing a running checker is that if we
1051
1037
# checkers alone, the checker would have to take more time
1052
1038
# than 'timeout' for the client to be disabled, which is as it
1053
1039
# should be.
1054
1040
1055
1041
if self.checker is not None and not self.checker.is_alive():
1056
1042
logger.warning("Checker was not alive; joining")
1057
1043
self.checker.join()
1061
1047
# Escape attributes for the shell
1062
1048
escaped_attrs = {
1063
1049
attr: re.escape(str(getattr(self, attr)))
1064
for attr in self.runtime_expansions}
1050
for attr in self.runtime_expansions }
1065
1051
try:
1066
1052
command = self.checker_command % escaped_attrs
1067
1053
except TypeError as error:
1079
1065
# The exception is when not debugging but nevertheless
1080
1066
# running in the foreground; use the previously
1081
1067
# created wnull.
1082
popen_args = {"close_fds": True,
1083
"shell": True,
1084
"cwd": "/"}
1068
popen_args = { "close_fds": True,
1069
"shell": True,
1070
"cwd": "/" }
1085
1071
if (not self.server_settings["debug"]
1086
1072
and self.server_settings["foreground"]):
1087
1073
popen_args.update({"stdout": wnull,
1088
"stderr": wnull})
1089
pipe = multiprocessing.Pipe(duplex=False)
1074
"stderr": wnull })
1075
pipe = multiprocessing.Pipe(duplex = False)
1090
1076
self.checker = multiprocessing.Process(
1091
target=call_pipe,
1092
args=(pipe[1], subprocess.call, command),
1093
kwargs=popen_args)
1077
target = call_pipe,
1078
args = (pipe[1], subprocess.call, command),
1079
kwargs = popen_args)
1094
1080
self.checker.start()
1095
1081
self.checker_callback_tag = GLib.io_add_watch(
1096
1082
pipe[0].fileno(), GLib.IO_IN,
1097
1083
self.checker_callback, pipe[0], command)
1098
1084
# Re-run this periodically if run by GLib.timeout_add
1099
1085
return True
1100
1086
1101
1087
def stop_checker(self):
1102
1088
"""Force the checker process, if any, to stop."""
1103
1089
if self.checker_callback_tag:
1116
1102
byte_arrays=False):
1117
1103
"""Decorators for marking methods of a DBusObjectWithProperties to
1118
1104
become properties on the D-Bus.
1119
1105
1120
1106
The decorated method will be called with no arguments by "Get"
1121
1107
and with one argument by "Set".
1122
1108
1123
1109
The parameters, where they are supported, are the same as
1124
1110
dbus.service.method, except there is only "signature", since the
1125
1111
type from Get() and the type sent to Set() is the same.
1129
1115
if byte_arrays and signature != "ay":
1130
1116
raise ValueError("Byte arrays not supported for non-'ay'"
1131
1117
" signature {!r}".format(signature))
1132
1118
1133
1119
def decorator(func):
1134
1120
func._dbus_is_property = True
1135
1121
func._dbus_interface = dbus_interface
1138
1124
func._dbus_name = func.__name__
1139
1125
if func._dbus_name.endswith("_dbus_property"):
1140
1126
func._dbus_name = func._dbus_name[:-14]
1141
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1127
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
1142
1128
return func
1143
1129
1144
1130
return decorator
1145
1131
1146
1132
1147
1133
def dbus_interface_annotations(dbus_interface):
1148
1134
"""Decorator for marking functions returning interface annotations
1149
1135
1150
1136
Usage:
1151
1137
1152
1138
@dbus_interface_annotations("org.example.Interface")
1153
1139
def _foo(self): # Function name does not matter
1154
1140
return {"org.freedesktop.DBus.Deprecated": "true",
1155
1141
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1156
1142
"false"}
1157
1143
"""
1158
1144
1159
1145
def decorator(func):
1160
1146
func._dbus_is_interface = True
1161
1147
func._dbus_interface = dbus_interface
1162
1148
func._dbus_name = dbus_interface
1163
1149
return func
1164
1150
1165
1151
return decorator
1166
1152
1167
1153
1168
1154
def dbus_annotations(annotations):
1169
1155
"""Decorator to annotate D-Bus methods, signals or properties
1170
1156
Usage:
1171
1157
1172
1158
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1173
1159
"org.freedesktop.DBus.Property."
1174
1160
"EmitsChangedSignal": "false"})
1176
1162
access="r")
1177
1163
def Property_dbus_property(self):
1178
1164
return dbus.Boolean(False)
1179
1165
1180
1166
See also the DBusObjectWithAnnotations class.
1181
1167
"""
1182
1168
1183
1169
def decorator(func):
1184
1170
func._dbus_annotations = annotations
1185
1171
return func
1186
1172
1187
1173
return decorator
1188
1174
1189
1175
1207
1193
1208
1194
class DBusObjectWithAnnotations(dbus.service.Object):
1209
1195
"""A D-Bus object with annotations.
1210
1196
1211
1197
Classes inheriting from this can use the dbus_annotations
1212
1198
decorator to add annotations to methods or signals.
1213
1199
"""
1214
1200
1215
1201
@staticmethod
1216
1202
def _is_dbus_thing(thing):
1217
1203
"""Returns a function testing if an attribute is a D-Bus thing
1218
1204
1219
1205
If called like _is_dbus_thing("method") it returns a function
1220
1206
suitable for use as predicate to inspect.getmembers().
1221
1207
"""
1222
1208
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1223
1209
False)
1224
1210
1225
1211
def _get_all_dbus_things(self, thing):
1226
1212
"""Returns a generator of (name, attribute) pairs
1227
1213
"""
1230
1216
for cls in self.__class__.__mro__
1231
1217
for name, athing in
1232
1218
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1233
1219
1234
1220
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1235
out_signature="s",
1236
path_keyword='object_path',
1237
connection_keyword='connection')
1221
out_signature = "s",
1222
path_keyword = 'object_path',
1223
connection_keyword = 'connection')
1238
1224
def Introspect(self, object_path, connection):
1239
1225
"""Overloading of standard D-Bus method.
1240
1226
1241
1227
Inserts annotation tags on methods and signals.
1242
1228
"""
1243
1229
xmlstring = dbus.service.Object.Introspect(self, object_path,
1244
1230
connection)
1245
1231
try:
1246
1232
document = xml.dom.minidom.parseString(xmlstring)
1247
1233
1248
1234
for if_tag in document.getElementsByTagName("interface"):
1249
1235
# Add annotation tags
1250
1236
for typ in ("method", "signal"):
1277
1263
if_tag.appendChild(ann_tag)
1278
1264
# Fix argument name for the Introspect method itself
1279
1265
if (if_tag.getAttribute("name")
1280
== dbus.INTROSPECTABLE_IFACE):
1266
== dbus.INTROSPECTABLE_IFACE):
1281
1267
for cn in if_tag.getElementsByTagName("method"):
1282
1268
if cn.getAttribute("name") == "Introspect":
1283
1269
for arg in cn.getElementsByTagName("arg"):
1296
1282
1297
1283
class DBusObjectWithProperties(DBusObjectWithAnnotations):
1298
1284
"""A D-Bus object with properties.
1299
1285
1300
1286
Classes inheriting from this can use the dbus_service_property
1301
1287
decorator to expose methods as D-Bus properties. It exposes the
1302
1288
standard Get(), Set(), and GetAll() methods on the D-Bus.
1303
1289
"""
1304
1290
1305
1291
def _get_dbus_property(self, interface_name, property_name):
1306
1292
"""Returns a bound method if one exists which is a D-Bus
1307
1293
property with the specified name and interface.
1312
1298
if (value._dbus_name == property_name
1313
1299
and value._dbus_interface == interface_name):
1314
1300
return value.__get__(self)
1315
1301
1316
1302
# No such property
1317
1303
raise DBusPropertyNotFound("{}:{}.{}".format(
1318
1304
self.dbus_object_path, interface_name, property_name))
1319
1305
1320
1306
@classmethod
1321
1307
def _get_all_interface_names(cls):
1322
1308
"""Get a sequence of all interfaces supported by an object"""
1325
1311
for x in (inspect.getmro(cls))
1326
1312
for attr in dir(x))
1327
1313
if name is not None)
1328
1314
1329
1315
@dbus.service.method(dbus.PROPERTIES_IFACE,
1330
1316
in_signature="ss",
1331
1317
out_signature="v")
1339
1325
if not hasattr(value, "variant_level"):
1340
1326
return value
1341
1327
return type(value)(value, variant_level=value.variant_level+1)
1342
1328
1343
1329
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1344
1330
def Set(self, interface_name, property_name, value):
1345
1331
"""Standard D-Bus property Set() method, see D-Bus standard.
1357
1343
value = dbus.ByteArray(b''.join(chr(byte)
1358
1344
for byte in value))
1359
1345
prop(value)
1360
1346
1361
1347
@dbus.service.method(dbus.PROPERTIES_IFACE,
1362
1348
in_signature="s",
1363
1349
out_signature="a{sv}")
1364
1350
def GetAll(self, interface_name):
1365
1351
"""Standard D-Bus property GetAll() method, see D-Bus
1366
1352
standard.
1367
1353
1368
1354
Note: Will not include properties with access="write".
1369
1355
"""
1370
1356
properties = {}
1381
1367
properties[name] = value
1382
1368
continue
1383
1369
properties[name] = type(value)(
1384
value, variant_level=value.variant_level + 1)
1370
value, variant_level = value.variant_level + 1)
1385
1371
return dbus.Dictionary(properties, signature="sv")
1386
1372
1387
1373
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1388
1374
def PropertiesChanged(self, interface_name, changed_properties,
1389
1375
invalidated_properties):
1391
1377
standard.
1392
1378
"""
1393
1379
pass
1394
1380
1395
1381
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1396
1382
out_signature="s",
1397
1383
path_keyword='object_path',
1398
1384
connection_keyword='connection')
1399
1385
def Introspect(self, object_path, connection):
1400
1386
"""Overloading of standard D-Bus method.
1401
1387
1402
1388
Inserts property tags and interface annotation tags.
1403
1389
"""
1404
1390
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1406
1392
connection)
1407
1393
try:
1408
1394
document = xml.dom.minidom.parseString(xmlstring)
1409
1395
1410
1396
def make_tag(document, name, prop):
1411
1397
e = document.createElement("property")
1412
1398
e.setAttribute("name", name)
1413
1399
e.setAttribute("type", prop._dbus_signature)
1414
1400
e.setAttribute("access", prop._dbus_access)
1415
1401
return e
1416
1402
1417
1403
for if_tag in document.getElementsByTagName("interface"):
1418
1404
# Add property tags
1419
1405
for tag in (make_tag(document, name, prop)
1461
1447
exc_info=error)
1462
1448
return xmlstring
1463
1449
1464
1465
1450
try:
1466
1451
dbus.OBJECT_MANAGER_IFACE
1467
1452
except AttributeError:
1468
1453
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1469
1454
1470
1471
1455
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1472
1456
"""A D-Bus object with an ObjectManager.
1473
1457
1474
1458
Classes inheriting from this exposes the standard
1475
1459
GetManagedObjects call and the InterfacesAdded and
1476
1460
InterfacesRemoved signals on the standard
1477
1461
"org.freedesktop.DBus.ObjectManager" interface.
1478
1462
1479
1463
Note: No signals are sent automatically; they must be sent
1480
1464
manually.
1481
1465
"""
1482
1466
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1483
out_signature="a{oa{sa{sv}}}")
1467
out_signature = "a{oa{sa{sv}}}")
1484
1468
def GetManagedObjects(self):
1485
1469
"""This function must be overridden"""
1486
1470
raise NotImplementedError()
1487
1471
1488
1472
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1489
signature="oa{sa{sv}}")
1473
signature = "oa{sa{sv}}")
1490
1474
def InterfacesAdded(self, object_path, interfaces_and_properties):
1491
1475
pass
1492
1493
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1476
1477
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature = "oas")
1494
1478
def InterfacesRemoved(self, object_path, interfaces):
1495
1479
pass
1496
1480
1497
1481
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1498
out_signature="s",
1499
path_keyword='object_path',
1500
connection_keyword='connection')
1482
out_signature = "s",
1483
path_keyword = 'object_path',
1484
connection_keyword = 'connection')
1501
1485
def Introspect(self, object_path, connection):
1502
1486
"""Overloading of standard D-Bus method.
1503
1487
1504
1488
Override return argument name of GetManagedObjects to be
1505
1489
"objpath_interfaces_and_properties"
1506
1490
"""
1509
1493
connection)
1510
1494
try:
1511
1495
document = xml.dom.minidom.parseString(xmlstring)
1512
1496
1513
1497
for if_tag in document.getElementsByTagName("interface"):
1514
1498
# Fix argument name for the GetManagedObjects method
1515
1499
if (if_tag.getAttribute("name")
1516
== dbus.OBJECT_MANAGER_IFACE):
1500
== dbus.OBJECT_MANAGER_IFACE):
1517
1501
for cn in if_tag.getElementsByTagName("method"):
1518
1502
if (cn.getAttribute("name")
1519
1503
== "GetManagedObjects"):
1529
1513
except (AttributeError, xml.dom.DOMException,
1530
1514
xml.parsers.expat.ExpatError) as error:
1531
1515
logger.error("Failed to override Introspection method",
1532
exc_info=error)
1516
exc_info = error)
1533
1517
return xmlstring
1534
1518
1535
1536
1519
def datetime_to_dbus(dt, variant_level=0):
1537
1520
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1538
1521
if dt is None:
1539
return dbus.String("", variant_level=variant_level)
1522
return dbus.String("", variant_level = variant_level)
1540
1523
return dbus.String(dt.isoformat(), variant_level=variant_level)
1541
1524
1542
1525
1545
1528
dbus.service.Object, it will add alternate D-Bus attributes with
1546
1529
interface names according to the "alt_interface_names" mapping.
1547
1530
Usage:
1548
1531
1549
1532
@alternate_dbus_interfaces({"org.example.Interface":
1550
1533
"net.example.AlternateInterface"})
1551
1534
class SampleDBusObject(dbus.service.Object):
1552
1535
@dbus.service.method("org.example.Interface")
1553
1536
def SampleDBusMethod():
1554
1537
pass
1555
1538
1556
1539
The above "SampleDBusMethod" on "SampleDBusObject" will be
1557
1540
reachable via two interfaces: "org.example.Interface" and
1558
1541
"net.example.AlternateInterface", the latter of which will have
1559
1542
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1560
1543
"true", unless "deprecate" is passed with a False value.
1561
1544
1562
1545
This works for methods and signals, and also for D-Bus properties
1563
1546
(from DBusObjectWithProperties) and interfaces (from the
1564
1547
dbus_interface_annotations decorator).
1565
1548
"""
1566
1549
1567
1550
def wrapper(cls):
1568
1551
for orig_interface_name, alt_interface_name in (
1569
1552
alt_interface_names.items()):
1609
1592
attribute._dbus_annotations)
1610
1593
except AttributeError:
1611
1594
pass
1612
1613
1595
# Define a creator of a function to call both the
1614
1596
# original and alternate functions, so both the
1615
1597
# original and alternate signals gets sent when
1618
1600
"""This function is a scope container to pass
1619
1601
func1 and func2 to the "call_both" function
1620
1602
outside of its arguments"""
1621
1603
1622
1604
@functools.wraps(func2)
1623
1605
def call_both(*args, **kwargs):
1624
1606
"""This function will emit two D-Bus
1625
1607
signals by calling func1 and func2"""
1626
1608
func1(*args, **kwargs)
1627
1609
func2(*args, **kwargs)
1628
# Make wrapper function look like a D-Bus
1629
# signal
1610
# Make wrapper function look like a D-Bus signal
1630
1611
for name, attr in inspect.getmembers(func2):
1631
1612
if name.startswith("_dbus_"):
1632
1613
setattr(call_both, name, attr)
1633
1614
1634
1615
return call_both
1635
1616
# Create the "call_both" function and add it to
1636
1617
# the class
1682
1663
(copy_function(attribute)))
1683
1664
if deprecate:
1684
1665
# Deprecate all alternate interfaces
1685
iname = "_AlternateDBusNames_interface_annotation{}"
1666
iname="_AlternateDBusNames_interface_annotation{}"
1686
1667
for interface_name in interface_names:
1687
1668
1688
1669
@dbus_interface_annotations(interface_name)
1689
1670
def func(self):
1690
return {"org.freedesktop.DBus.Deprecated":
1691
"true"}
1671
return { "org.freedesktop.DBus.Deprecated":
1672
"true" }
1692
1673
# Find an unused name
1693
1674
for aname in (iname.format(i)
1694
1675
for i in itertools.count()):
1705
1686
cls = type("{}Alternate".format(cls.__name__),
1706
1687
(cls, ), attr)
1707
1688
return cls
1708
1689
1709
1690
return wrapper
1710
1691
1711
1692
1713
1694
"se.bsnet.fukt.Mandos"})
1714
1695
class ClientDBus(Client, DBusObjectWithProperties):
1715
1696
"""A Client class using D-Bus
1716
1697
1717
1698
Attributes:
1718
1699
dbus_object_path: dbus.ObjectPath
1719
1700
bus: dbus.SystemBus()
1720
1701
"""
1721
1702
1722
1703
runtime_expansions = (Client.runtime_expansions
1723
1704
+ ("dbus_object_path", ))
1724
1705
1725
1706
_interface = "se.recompile.Mandos.Client"
1726
1707
1727
1708
# dbus.service.Object doesn't use super(), so we can't either.
1728
1729
def __init__(self, bus=None, *args, **kwargs):
1709
1710
def __init__(self, bus = None, *args, **kwargs):
1730
1711
self.bus = bus
1731
1712
Client.__init__(self, *args, **kwargs)
1732
1713
# Only now, when this client is initialized, can it show up on
1738
1719
"/clients/" + client_object_name)
1739
1720
DBusObjectWithProperties.__init__(self, self.bus,
1740
1721
self.dbus_object_path)
1741
1722
1742
1723
def notifychangeproperty(transform_func, dbus_name,
1743
1724
type_func=lambda x: x,
1744
1725
variant_level=1,
1746
1727
_interface=_interface):
1747
1728
""" Modify a variable so that it's a property which announces
1748
1729
its changes to DBus.
1749
1730
1750
1731
transform_fun: Function that takes a value and a variant_level
1751
1732
and transforms it to a D-Bus type.
1752
1733
dbus_name: D-Bus name of the variable
1755
1736
variant_level: D-Bus variant level. Default: 1
1756
1737
"""
1757
1738
attrname = "_{}".format(dbus_name)
1758
1739
1759
1740
def setter(self, value):
1760
1741
if hasattr(self, "dbus_object_path"):
1761
1742
if (not hasattr(self, attrname) or
1768
1749
else:
1769
1750
dbus_value = transform_func(
1770
1751
type_func(value),
1771
variant_level=variant_level)
1752
variant_level = variant_level)
1772
1753
self.PropertyChanged(dbus.String(dbus_name),
1773
1754
dbus_value)
1774
1755
self.PropertiesChanged(
1775
1756
_interface,
1776
dbus.Dictionary({dbus.String(dbus_name):
1777
dbus_value}),
1757
dbus.Dictionary({ dbus.String(dbus_name):
1758
dbus_value }),
1778
1759
dbus.Array())
1779
1760
setattr(self, attrname, value)
1780
1761
1781
1762
return property(lambda self: getattr(self, attrname), setter)
1782
1763
1783
1764
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1784
1765
approvals_pending = notifychangeproperty(dbus.Boolean,
1785
1766
"ApprovalPending",
1786
type_func=bool)
1767
type_func = bool)
1787
1768
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1788
1769
last_enabled = notifychangeproperty(datetime_to_dbus,
1789
1770
"LastEnabled")
1790
1771
checker = notifychangeproperty(
1791
1772
dbus.Boolean, "CheckerRunning",
1792
type_func=lambda checker: checker is not None)
1773
type_func = lambda checker: checker is not None)
1793
1774
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1794
1775
"LastCheckedOK")
1795
1776
last_checker_status = notifychangeproperty(dbus.Int16,
1800
1781
"ApprovedByDefault")
1801
1782
approval_delay = notifychangeproperty(
1802
1783
dbus.UInt64, "ApprovalDelay",
1803
type_func=lambda td: td.total_seconds() * 1000)
1784
type_func = lambda td: td.total_seconds() * 1000)
1804
1785
approval_duration = notifychangeproperty(
1805
1786
dbus.UInt64, "ApprovalDuration",
1806
type_func=lambda td: td.total_seconds() * 1000)
1787
type_func = lambda td: td.total_seconds() * 1000)
1807
1788
host = notifychangeproperty(dbus.String, "Host")
1808
1789
timeout = notifychangeproperty(
1809
1790
dbus.UInt64, "Timeout",
1810
type_func=lambda td: td.total_seconds() * 1000)
1791
type_func = lambda td: td.total_seconds() * 1000)
1811
1792
extended_timeout = notifychangeproperty(
1812
1793
dbus.UInt64, "ExtendedTimeout",
1813
type_func=lambda td: td.total_seconds() * 1000)
1794
type_func = lambda td: td.total_seconds() * 1000)
1814
1795
interval = notifychangeproperty(
1815
1796
dbus.UInt64, "Interval",
1816
type_func=lambda td: td.total_seconds() * 1000)
1797
type_func = lambda td: td.total_seconds() * 1000)
1817
1798
checker_command = notifychangeproperty(dbus.String, "Checker")
1818
1799
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1819
1800
invalidate_only=True)
1820
1801
1821
1802
del notifychangeproperty
1822
1803
1823
1804
def __del__(self, *args, **kwargs):
1824
1805
try:
1825
1806
self.remove_from_connection()
1828
1809
if hasattr(DBusObjectWithProperties, "__del__"):
1829
1810
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1830
1811
Client.__del__(self, *args, **kwargs)
1831
1812
1832
1813
def checker_callback(self, source, condition,
1833
1814
connection, command, *args, **kwargs):
1834
1815
ret = Client.checker_callback(self, source, condition,
1850
1831
| self.last_checker_signal),
1851
1832
dbus.String(command))
1852
1833
return ret
1853
1834
1854
1835
def start_checker(self, *args, **kwargs):
1855
1836
old_checker_pid = getattr(self.checker, "pid", None)
1856
1837
r = Client.start_checker(self, *args, **kwargs)
1860
1841
# Emit D-Bus signal
1861
1842
self.CheckerStarted(self.current_checker_command)
1862
1843
return r
1863
1844
1864
1845
def _reset_approved(self):
1865
1846
self.approved = None
1866
1847
return False
1867
1848
1868
1849
def approve(self, value=True):
1869
1850
self.approved = value
1870
1851
GLib.timeout_add(int(self.approval_duration.total_seconds()
1871
1852
* 1000), self._reset_approved)
1872
1853
self.send_changedstate()
1873
1874
# D-Bus methods, signals & properties
1875
1876
# Interfaces
1877
1878
# Signals
1879
1854
1855
## D-Bus methods, signals & properties
1856
1857
## Interfaces
1858
1859
## Signals
1860
1880
1861
# CheckerCompleted - signal
1881
1862
@dbus.service.signal(_interface, signature="nxs")
1882
1863
def CheckerCompleted(self, exitcode, waitstatus, command):
1883
1864
"D-Bus signal"
1884
1865
pass
1885
1866
1886
1867
# CheckerStarted - signal
1887
1868
@dbus.service.signal(_interface, signature="s")
1888
1869
def CheckerStarted(self, command):
1889
1870
"D-Bus signal"
1890
1871
pass
1891
1872
1892
1873
# PropertyChanged - signal
1893
1874
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1894
1875
@dbus.service.signal(_interface, signature="sv")
1895
1876
def PropertyChanged(self, property, value):
1896
1877
"D-Bus signal"
1897
1878
pass
1898
1879
1899
1880
# GotSecret - signal
1900
1881
@dbus.service.signal(_interface)
1901
1882
def GotSecret(self):
1904
1885
server to mandos-client
1905
1886
"""
1906
1887
pass
1907
1888
1908
1889
# Rejected - signal
1909
1890
@dbus.service.signal(_interface, signature="s")
1910
1891
def Rejected(self, reason):
1911
1892
"D-Bus signal"
1912
1893
pass
1913
1894
1914
1895
# NeedApproval - signal
1915
1896
@dbus.service.signal(_interface, signature="tb")
1916
1897
def NeedApproval(self, timeout, default):
1917
1898
"D-Bus signal"
1918
1899
return self.need_approval()
1919
1920
# Methods
1921
1900
1901
## Methods
1902
1922
1903
# Approve - method
1923
1904
@dbus.service.method(_interface, in_signature="b")
1924
1905
def Approve(self, value):
1925
1906
self.approve(value)
1926
1907
1927
1908
# CheckedOK - method
1928
1909
@dbus.service.method(_interface)
1929
1910
def CheckedOK(self):
1930
1911
self.checked_ok()
1931
1912
1932
1913
# Enable - method
1933
1914
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1934
1915
@dbus.service.method(_interface)
1935
1916
def Enable(self):
1936
1917
"D-Bus method"
1937
1918
self.enable()
1938
1919
1939
1920
# StartChecker - method
1940
1921
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1941
1922
@dbus.service.method(_interface)
1942
1923
def StartChecker(self):
1943
1924
"D-Bus method"
1944
1925
self.start_checker()
1945
1926
1946
1927
# Disable - method
1947
1928
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1948
1929
@dbus.service.method(_interface)
1949
1930
def Disable(self):
1950
1931
"D-Bus method"
1951
1932
self.disable()
1952
1933
1953
1934
# StopChecker - method
1954
1935
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1955
1936
@dbus.service.method(_interface)
1956
1937
def StopChecker(self):
1957
1938
self.stop_checker()
1958
1959
# Properties
1960
1939
1940
## Properties
1941
1961
1942
# ApprovalPending - property
1962
1943
@dbus_service_property(_interface, signature="b", access="read")
1963
1944
def ApprovalPending_dbus_property(self):
1964
1945
return dbus.Boolean(bool(self.approvals_pending))
1965
1946
1966
1947
# ApprovedByDefault - property
1967
1948
@dbus_service_property(_interface,
1968
1949
signature="b",
1971
1952
if value is None: # get
1972
1953
return dbus.Boolean(self.approved_by_default)
1973
1954
self.approved_by_default = bool(value)
1974
1955
1975
1956
# ApprovalDelay - property
1976
1957
@dbus_service_property(_interface,
1977
1958
signature="t",
1981
1962
return dbus.UInt64(self.approval_delay.total_seconds()
1982
1963
* 1000)
1983
1964
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1984
1965
1985
1966
# ApprovalDuration - property
1986
1967
@dbus_service_property(_interface,
1987
1968
signature="t",
1991
1972
return dbus.UInt64(self.approval_duration.total_seconds()
1992
1973
* 1000)
1993
1974
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1994
1975
1995
1976
# Name - property
1996
1977
@dbus_annotations(
1997
1978
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1998
1979
@dbus_service_property(_interface, signature="s", access="read")
1999
1980
def Name_dbus_property(self):
2000
1981
return dbus.String(self.name)
2001
1982
2002
1983
# Fingerprint - property
2003
1984
@dbus_annotations(
2004
1985
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2005
1986
@dbus_service_property(_interface, signature="s", access="read")
2006
1987
def Fingerprint_dbus_property(self):
2007
1988
return dbus.String(self.fingerprint)
2008
1989
2009
1990
# Host - property
2010
1991
@dbus_service_property(_interface,
2011
1992
signature="s",
2014
1995
if value is None: # get
2015
1996
return dbus.String(self.host)
2016
1997
self.host = str(value)
2017
1998
2018
1999
# Created - property
2019
2000
@dbus_annotations(
2020
2001
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2021
2002
@dbus_service_property(_interface, signature="s", access="read")
2022
2003
def Created_dbus_property(self):
2023
2004
return datetime_to_dbus(self.created)
2024
2005
2025
2006
# LastEnabled - property
2026
2007
@dbus_service_property(_interface, signature="s", access="read")
2027
2008
def LastEnabled_dbus_property(self):
2028
2009
return datetime_to_dbus(self.last_enabled)
2029
2010
2030
2011
# Enabled - property
2031
2012
@dbus_service_property(_interface,
2032
2013
signature="b",
2038
2019
self.enable()
2039
2020
else:
2040
2021
self.disable()
2041
2022
2042
2023
# LastCheckedOK - property
2043
2024
@dbus_service_property(_interface,
2044
2025
signature="s",
2048
2029
self.checked_ok()
2049
2030
return
2050
2031
return datetime_to_dbus(self.last_checked_ok)
2051
2032
2052
2033
# LastCheckerStatus - property
2053
2034
@dbus_service_property(_interface, signature="n", access="read")
2054
2035
def LastCheckerStatus_dbus_property(self):
2055
2036
return dbus.Int16(self.last_checker_status)
2056
2037
2057
2038
# Expires - property
2058
2039
@dbus_service_property(_interface, signature="s", access="read")
2059
2040
def Expires_dbus_property(self):
2060
2041
return datetime_to_dbus(self.expires)
2061
2042
2062
2043
# LastApprovalRequest - property
2063
2044
@dbus_service_property(_interface, signature="s", access="read")
2064
2045
def LastApprovalRequest_dbus_property(self):
2065
2046
return datetime_to_dbus(self.last_approval_request)
2066
2047
2067
2048
# Timeout - property
2068
2049
@dbus_service_property(_interface,
2069
2050
signature="t",
2088
2069
self.disable_initiator_tag = GLib.timeout_add(
2089
2070
int((self.expires - now).total_seconds() * 1000),
2090
2071
self.disable)
2091
2072
2092
2073
# ExtendedTimeout - property
2093
2074
@dbus_service_property(_interface,
2094
2075
signature="t",
2098
2079
return dbus.UInt64(self.extended_timeout.total_seconds()
2099
2080
* 1000)
2100
2081
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2101
2082
2102
2083
# Interval - property
2103
2084
@dbus_service_property(_interface,
2104
2085
signature="t",
2114
2095
GLib.source_remove(self.checker_initiator_tag)
2115
2096
self.checker_initiator_tag = GLib.timeout_add(
2116
2097
value, self.start_checker)
2117
self.start_checker() # Start one now, too
2118
2098
self.start_checker() # Start one now, too
2099
2119
2100
# Checker - property
2120
2101
@dbus_service_property(_interface,
2121
2102
signature="s",
2124
2105
if value is None: # get
2125
2106
return dbus.String(self.checker_command)
2126
2107
self.checker_command = str(value)
2127
2108
2128
2109
# CheckerRunning - property
2129
2110
@dbus_service_property(_interface,
2130
2111
signature="b",
2136
2117
self.start_checker()
2137
2118
else:
2138
2119
self.stop_checker()
2139
2120
2140
2121
# ObjectPath - property
2141
2122
@dbus_annotations(
2142
2123
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2143
2124
"org.freedesktop.DBus.Deprecated": "true"})
2144
2125
@dbus_service_property(_interface, signature="o", access="read")
2145
2126
def ObjectPath_dbus_property(self):
2146
return self.dbus_object_path # is already a dbus.ObjectPath
2147
2127
return self.dbus_object_path # is already a dbus.ObjectPath
2128
2148
2129
# Secret = property
2149
2130
@dbus_annotations(
2150
2131
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2155
2136
byte_arrays=True)
2156
2137
def Secret_dbus_property(self, value):
2157
2138
self.secret = bytes(value)
2158
2139
2159
2140
del _interface
2160
2141
2161
2142
2165
2146
self._pipe.send(('init', fpr, address))
2166
2147
if not self._pipe.recv():
2167
2148
raise KeyError(fpr)
2168
2149
2169
2150
def __getattribute__(self, name):
2170
2151
if name == '_pipe':
2171
2152
return super(ProxyClient, self).__getattribute__(name)
2174
2155
if data[0] == 'data':
2175
2156
return data[1]
2176
2157
if data[0] == 'function':
2177
2158
2178
2159
def func(*args, **kwargs):
2179
2160
self._pipe.send(('funcall', name, args, kwargs))
2180
2161
return self._pipe.recv()[1]
2181
2162
2182
2163
return func
2183
2164
2184
2165
def __setattr__(self, name, value):
2185
2166
if name == '_pipe':
2186
2167
return super(ProxyClient, self).__setattr__(name, value)
2189
2170
2190
2171
class ClientHandler(socketserver.BaseRequestHandler, object):
2191
2172
"""A class to handle client connections.
2192
2173
2193
2174
Instantiated once for each connection to handle it.
2194
2175
Note: This will run in its own forked process."""
2195
2176
2196
2177
def handle(self):
2197
2178
with contextlib.closing(self.server.child_pipe) as child_pipe:
2198
2179
logger.info("TCP connection from: %s",
2199
2180
str(self.client_address))
2200
2181
logger.debug("Pipe FD: %d",
2201
2182
self.server.child_pipe.fileno())
2202
2183
2203
2184
session = gnutls.ClientSession(self.request)
2204
2205
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2206
# "+AES-256-CBC", "+SHA1",
2207
# "+COMP-NULL", "+CTYPE-OPENPGP",
2208
# "+DHE-DSS"))
2185
2186
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
2187
# "+AES-256-CBC", "+SHA1",
2188
# "+COMP-NULL", "+CTYPE-OPENPGP",
2189
# "+DHE-DSS"))
2209
2190
# Use a fallback default, since this MUST be set.
2210
2191
priority = self.server.gnutls_priority
2211
2192
if priority is None:
2213
2194
gnutls.priority_set_direct(session._c_object,
2214
2195
priority.encode("utf-8"),
2215
2196
None)
2216
2197
2217
2198
# Start communication using the Mandos protocol
2218
2199
# Get protocol number
2219
2200
line = self.request.makefile().readline()
2224
2205
except (ValueError, IndexError, RuntimeError) as error:
2225
2206
logger.error("Unknown protocol version: %s", error)
2226
2207
return
2227
2208
2228
2209
# Start GnuTLS connection
2229
2210
try:
2230
2211
session.handshake()
2234
2215
# established. Just abandon the request.
2235
2216
return
2236
2217
logger.debug("Handshake succeeded")
2237
2218
2238
2219
approval_required = False
2239
2220
try:
2240
2221
try:
2244
2225
logger.warning("Bad certificate: %s", error)
2245
2226
return
2246
2227
logger.debug("Fingerprint: %s", fpr)
2247
2228
2248
2229
try:
2249
2230
client = ProxyClient(child_pipe, fpr,
2250
2231
self.client_address)
2251
2232
except KeyError:
2252
2233
return
2253
2234
2254
2235
if client.approval_delay:
2255
2236
delay = client.approval_delay
2256
2237
client.approvals_pending += 1
2257
2238
approval_required = True
2258
2239
2259
2240
while True:
2260
2241
if not client.enabled:
2261
2242
logger.info("Client %s is disabled",
2264
2245
# Emit D-Bus signal
2265
2246
client.Rejected("Disabled")
2266
2247
return
2267
2248
2268
2249
if client.approved or not client.approval_delay:
2269
# We are approved or approval is disabled
2250
#We are approved or approval is disabled
2270
2251
break
2271
2252
elif client.approved is None:
2272
2253
logger.info("Client %s needs approval",
2283
2264
# Emit D-Bus signal
2284
2265
client.Rejected("Denied")
2285
2266
return
2286
2287
# wait until timeout or approved
2267
2268
#wait until timeout or approved
2288
2269
time = datetime.datetime.now()
2289
2270
client.changedstate.acquire()
2290
2271
client.changedstate.wait(delay.total_seconds())
2303
2284
break
2304
2285
else:
2305
2286
delay -= time2 - time
2306
2287
2307
2288
try:
2308
2289
session.send(client.secret)
2309
2290
except gnutls.Error as error:
2310
2291
logger.warning("gnutls send failed",
2311
exc_info=error)
2292
exc_info = error)
2312
2293
return
2313
2294
2314
2295
logger.info("Sending secret to %s", client.name)
2315
2296
# bump the timeout using extended_timeout
2316
2297
client.bump_timeout(client.extended_timeout)
2317
2298
if self.server.use_dbus:
2318
2299
# Emit D-Bus signal
2319
2300
client.GotSecret()
2320
2301
2321
2302
finally:
2322
2303
if approval_required:
2323
2304
client.approvals_pending -= 1
2326
2307
except gnutls.Error as error:
2327
2308
logger.warning("GnuTLS bye failed",
2328
2309
exc_info=error)
2329
2310
2330
2311
@staticmethod
2331
2312
def peer_certificate(session):
2332
2313
"Return the peer's OpenPGP certificate as a bytestring"
2344
2325
return None
2345
2326
cert = cert_list[0]
2346
2327
return ctypes.string_at(cert.data, cert.size)
2347
2328
2348
2329
@staticmethod
2349
2330
def fingerprint(openpgp):
2350
2331
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2365
2346
ctypes.byref(crtverify))
2366
2347
if crtverify.value != 0:
2367
2348
gnutls.openpgp_crt_deinit(crt)
2368
raise gnutls.CertificateSecurityError(code
2369
=crtverify.value)
2349
raise gnutls.CertificateSecurityError("Verify failed")
2370
2350
# New buffer for the fingerprint
2371
2351
buf = ctypes.create_string_buffer(20)
2372
2352
buf_len = ctypes.c_size_t()
2384
2364
2385
2365
class MultiprocessingMixIn(object):
2386
2366
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2387
2367
2388
2368
def sub_process_main(self, request, address):
2389
2369
try:
2390
2370
self.finish_request(request, address)
2391
2371
except Exception:
2392
2372
self.handle_error(request, address)
2393
2373
self.close_request(request)
2394
2374
2395
2375
def process_request(self, request, address):
2396
2376
"""Start a new process to process the request."""
2397
proc = multiprocessing.Process(target=self.sub_process_main,
2398
args=(request, address))
2377
proc = multiprocessing.Process(target = self.sub_process_main,
2378
args = (request, address))
2399
2379
proc.start()
2400
2380
return proc
2401
2381
2402
2382
2403
2383
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2404
2384
""" adds a pipe to the MixIn """
2405
2385
2406
2386
def process_request(self, request, client_address):
2407
2387
"""Overrides and wraps the original process_request().
2408
2388
2409
2389
This function creates a new pipe in self.pipe
2410
2390
"""
2411
2391
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2412
2392
2413
2393
proc = MultiprocessingMixIn.process_request(self, request,
2414
2394
client_address)
2415
2395
self.child_pipe.close()
2416
2396
self.add_pipe(parent_pipe, proc)
2417
2397
2418
2398
def add_pipe(self, parent_pipe, proc):
2419
2399
"""Dummy function; override as necessary"""
2420
2400
raise NotImplementedError()
2423
2403
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2424
2404
socketserver.TCPServer, object):
2425
2405
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2426
2406
2427
2407
Attributes:
2428
2408
enabled: Boolean; whether this server is activated yet
2429
2409
interface: None or a network interface name (string)
2430
2410
use_ipv6: Boolean; to use IPv6 or not
2431
2411
"""
2432
2412
2433
2413
def __init__(self, server_address, RequestHandlerClass,
2434
2414
interface=None,
2435
2415
use_ipv6=True,
2445
2425
self.socketfd = socketfd
2446
2426
# Save the original socket.socket() function
2447
2427
self.socket_socket = socket.socket
2448
2449
2428
# To implement --socket, we monkey patch socket.socket.
2450
#
2429
#
2451
2430
# (When socketserver.TCPServer is a new-style class, we
2452
2431
# could make self.socket into a property instead of monkey
2453
2432
# patching socket.socket.)
2454
#
2433
#
2455
2434
# Create a one-time-only replacement for socket.socket()
2456
2435
@functools.wraps(socket.socket)
2457
2436
def socket_wrapper(*args, **kwargs):
2469
2448
# socket_wrapper(), if socketfd was set.
2470
2449
socketserver.TCPServer.__init__(self, server_address,
2471
2450
RequestHandlerClass)
2472
2451
2473
2452
def server_bind(self):
2474
2453
"""This overrides the normal server_bind() function
2475
2454
to bind to an interface if one was specified, and also NOT to
2502
2481
if self.server_address[0] or self.server_address[1]:
2503
2482
if not self.server_address[0]:
2504
2483
if self.address_family == socket.AF_INET6:
2505
any_address = "::" # in6addr_any
2484
any_address = "::" # in6addr_any
2506
2485
else:
2507
any_address = "0.0.0.0" # INADDR_ANY
2486
any_address = "0.0.0.0" # INADDR_ANY
2508
2487
self.server_address = (any_address,
2509
2488
self.server_address[1])
2510
2489
elif not self.server_address[1]:
2520
2499
2521
2500
class MandosServer(IPv6_TCPServer):
2522
2501
"""Mandos server.
2523
2502
2524
2503
Attributes:
2525
2504
clients: set of Client objects
2526
2505
gnutls_priority GnuTLS priority string
2527
2506
use_dbus: Boolean; to emit D-Bus signals or not
2528
2507
2529
2508
Assumes a GLib.MainLoop event loop.
2530
2509
"""
2531
2510
2532
2511
def __init__(self, server_address, RequestHandlerClass,
2533
2512
interface=None,
2534
2513
use_ipv6=True,
2544
2523
self.gnutls_priority = gnutls_priority
2545
2524
IPv6_TCPServer.__init__(self, server_address,
2546
2525
RequestHandlerClass,
2547
interface=interface,
2548
use_ipv6=use_ipv6,
2549
socketfd=socketfd)
2550
2526
interface = interface,
2527
use_ipv6 = use_ipv6,
2528
socketfd = socketfd)
2529
2551
2530
def server_activate(self):
2552
2531
if self.enabled:
2553
2532
return socketserver.TCPServer.server_activate(self)
2554
2533
2555
2534
def enable(self):
2556
2535
self.enabled = True
2557
2536
2558
2537
def add_pipe(self, parent_pipe, proc):
2559
2538
# Call "handle_ipc" for both data and EOF events
2560
2539
GLib.io_add_watch(
2561
2540
parent_pipe.fileno(),
2562
2541
GLib.IO_IN | GLib.IO_HUP,
2563
2542
functools.partial(self.handle_ipc,
2564
parent_pipe=parent_pipe,
2565
proc=proc))
2566
2543
parent_pipe = parent_pipe,
2544
proc = proc))
2545
2567
2546
def handle_ipc(self, source, condition,
2568
2547
parent_pipe=None,
2569
proc=None,
2548
proc = None,
2570
2549
client_object=None):
2571
2550
# error, or the other end of multiprocessing.Pipe has closed
2572
2551
if condition & (GLib.IO_ERR | GLib.IO_HUP):
2573
2552
# Wait for other process to exit
2574
2553
proc.join()
2575
2554
return False
2576
2555
2577
2556
# Read a request from the child
2578
2557
request = parent_pipe.recv()
2579
2558
command = request[0]
2580
2559
2581
2560
if command == 'init':
2582
fpr = request[1].decode("ascii")
2561
fpr = request[1]
2583
2562
address = request[2]
2584
2563
2585
2564
for c in self.clients.values():
2586
2565
if c.fingerprint == fpr:
2587
2566
client = c
2595
2574
address[0])
2596
2575
parent_pipe.send(False)
2597
2576
return False
2598
2577
2599
2578
GLib.io_add_watch(
2600
2579
parent_pipe.fileno(),
2601
2580
GLib.IO_IN | GLib.IO_HUP,
2602
2581
functools.partial(self.handle_ipc,
2603
parent_pipe=parent_pipe,
2604
proc=proc,
2605
client_object=client))
2582
parent_pipe = parent_pipe,
2583
proc = proc,
2584
client_object = client))
2606
2585
parent_pipe.send(True)
2607
2586
# remove the old hook in favor of the new above hook on
2608
2587
# same fileno
2611
2590
funcname = request[1]
2612
2591
args = request[2]
2613
2592
kwargs = request[3]
2614
2593
2615
2594
parent_pipe.send(('data', getattr(client_object,
2616
2595
funcname)(*args,
2617
2596
**kwargs)))
2618
2597
2619
2598
if command == 'getattr':
2620
2599
attrname = request[1]
2621
2600
if isinstance(client_object.__getattribute__(attrname),
2624
2603
else:
2625
2604
parent_pipe.send((
2626
2605
'data', client_object.__getattribute__(attrname)))
2627
2606
2628
2607
if command == 'setattr':
2629
2608
attrname = request[1]
2630
2609
value = request[2]
2631
2610
setattr(client_object, attrname, value)
2632
2611
2633
2612
return True
2634
2613
2635
2614
2636
2615
def rfc3339_duration_to_delta(duration):
2637
2616
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2638
2617
2639
2618
>>> rfc3339_duration_to_delta("P7D")
2640
2619
datetime.timedelta(7)
2641
2620
>>> rfc3339_duration_to_delta("PT60S")
2651
2630
>>> rfc3339_duration_to_delta("P1DT3M20S")
2652
2631
datetime.timedelta(1, 200)
2653
2632
"""
2654
2633
2655
2634
# Parsing an RFC 3339 duration with regular expressions is not
2656
2635
# possible - there would have to be multiple places for the same
2657
2636
# values, like seconds. The current code, while more esoteric, is
2658
2637
# cleaner without depending on a parsing library. If Python had a
2659
2638
# built-in library for parsing we would use it, but we'd like to
2660
2639
# avoid excessive use of external libraries.
2661
2640
2662
2641
# New type for defining tokens, syntax, and semantics all-in-one
2663
2642
Token = collections.namedtuple("Token", (
2664
2643
"regexp", # To match token; if "value" is not None, must have
2697
2676
frozenset((token_year, token_month,
2698
2677
token_day, token_time,
2699
2678
token_week)))
2700
# Define starting values:
2701
# Value so far
2702
value = datetime.timedelta()
2679
# Define starting values
2680
value = datetime.timedelta() # Value so far
2703
2681
found_token = None
2704
# Following valid tokens
2705
followers = frozenset((token_duration, ))
2706
# String left to parse
2707
s = duration
2682
followers = frozenset((token_duration, )) # Following valid tokens
2683
s = duration # String left to parse
2708
2684
# Loop until end token is found
2709
2685
while found_token is not token_end:
2710
2686
# Search for any currently valid tokens
2734
2710
2735
2711
def string_to_delta(interval):
2736
2712
"""Parse a string and return a datetime.timedelta
2737
2713
2738
2714
>>> string_to_delta('7d')
2739
2715
datetime.timedelta(7)
2740
2716
>>> string_to_delta('60s')
2748
2724
>>> string_to_delta('5m 30s')
2749
2725
datetime.timedelta(0, 330)
2750
2726
"""
2751
2727
2752
2728
try:
2753
2729
return rfc3339_duration_to_delta(interval)
2754
2730
except ValueError:
2755
2731
pass
2756
2732
2757
2733
timevalue = datetime.timedelta(0)
2758
2734
for s in interval.split():
2759
2735
try:
2777
2753
return timevalue
2778
2754
2779
2755
2780
def daemon(nochdir=False, noclose=False):
2756
def daemon(nochdir = False, noclose = False):
2781
2757
"""See daemon(3). Standard BSD Unix function.
2782
2758
2783
2759
This should really exist as os.daemon, but it doesn't (yet)."""
2784
2760
if os.fork():
2785
2761
sys.exit()
2803
2779
2804
2780
2805
2781
def main():
2806
2782
2807
2783
##################################################################
2808
2784
# Parsing of options, both command line and config file
2809
2785
2810
2786
parser = argparse.ArgumentParser()
2811
2787
parser.add_argument("-v", "--version", action="version",
2812
version="%(prog)s {}".format(version),
2788
version = "%(prog)s {}".format(version),
2813
2789
help="show version number and exit")
2814
2790
parser.add_argument("-i", "--interface", metavar="IF",
2815
2791
help="Bind to interface IF")
2851
2827
parser.add_argument("--no-zeroconf", action="store_false",
2852
2828
dest="zeroconf", help="Do not use Zeroconf",
2853
2829
default=None)
2854
2830
2855
2831
options = parser.parse_args()
2856
2832
2857
2833
if options.check:
2858
2834
import doctest
2859
2835
fail_count, test_count = doctest.testmod()
2860
2836
sys.exit(os.EX_OK if fail_count == 0 else 1)
2861
2837
2862
2838
# Default values for config file for server-global settings
2863
server_defaults = {"interface": "",
2864
"address": "",
2865
"port": "",
2866
"debug": "False",
2867
"priority":
2868
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2869
":+SIGN-DSA-SHA256",
2870
"servicename": "Mandos",
2871
"use_dbus": "True",
2872
"use_ipv6": "True",
2873
"debuglevel": "",
2874
"restore": "True",
2875
"socket": "",
2876
"statedir": "/var/lib/mandos",
2877
"foreground": "False",
2878
"zeroconf": "True",
2879
}
2880
2839
server_defaults = { "interface": "",
2840
"address": "",
2841
"port": "",
2842
"debug": "False",
2843
"priority":
2844
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2845
":+SIGN-DSA-SHA256",
2846
"servicename": "Mandos",
2847
"use_dbus": "True",
2848
"use_ipv6": "True",
2849
"debuglevel": "",
2850
"restore": "True",
2851
"socket": "",
2852
"statedir": "/var/lib/mandos",
2853
"foreground": "False",
2854
"zeroconf": "True",
2855
}
2856
2881
2857
# Parse config file for server-global settings
2882
2858
server_config = configparser.SafeConfigParser(server_defaults)
2883
2859
del server_defaults
2885
2861
# Convert the SafeConfigParser object to a dict
2886
2862
server_settings = server_config.defaults()
2887
2863
# Use the appropriate methods on the non-string config options
2888
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2889
"foreground", "zeroconf"):
2864
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
2890
2865
server_settings[option] = server_config.getboolean("DEFAULT",
2891
2866
option)
2892
2867
if server_settings["port"]:
2902
2877
server_settings["socket"] = os.dup(server_settings
2903
2878
["socket"])
2904
2879
del server_config
2905
2880
2906
2881
# Override the settings from the config file with command line
2907
2882
# options, if set.
2908
2883
for option in ("interface", "address", "port", "debug",
2926
2901
if server_settings["debug"]:
2927
2902
server_settings["foreground"] = True
2928
2903
# Now we have our good server settings in "server_settings"
2929
2904
2930
2905
##################################################################
2931
2906
2932
2907
if (not server_settings["zeroconf"]
2933
2908
and not (server_settings["port"]
2934
2909
or server_settings["socket"] != "")):
2935
2910
parser.error("Needs port or socket to work without Zeroconf")
2936
2911
2937
2912
# For convenience
2938
2913
debug = server_settings["debug"]
2939
2914
debuglevel = server_settings["debuglevel"]
2943
2918
stored_state_file)
2944
2919
foreground = server_settings["foreground"]
2945
2920
zeroconf = server_settings["zeroconf"]
2946
2921
2947
2922
if debug:
2948
2923
initlogger(debug, logging.DEBUG)
2949
2924
else:
2952
2927
else:
2953
2928
level = getattr(logging, debuglevel.upper())
2954
2929
initlogger(debug, level)
2955
2930
2956
2931
if server_settings["servicename"] != "Mandos":
2957
2932
syslogger.setFormatter(
2958
2933
logging.Formatter('Mandos ({}) [%(process)d]:'
2959
2934
' %(levelname)s: %(message)s'.format(
2960
2935
server_settings["servicename"])))
2961
2936
2962
2937
# Parse config file with clients
2963
2938
client_config = configparser.SafeConfigParser(Client
2964
2939
.client_defaults)
2965
2940
client_config.read(os.path.join(server_settings["configdir"],
2966
2941
"clients.conf"))
2967
2942
2968
2943
global mandos_dbus_service
2969
2944
mandos_dbus_service = None
2970
2945
2971
2946
socketfd = None
2972
2947
if server_settings["socket"] != "":
2973
2948
socketfd = server_settings["socket"]
2989
2964
except IOError as e:
2990
2965
logger.error("Could not open file %r", pidfilename,
2991
2966
exc_info=e)
2992
2967
2993
2968
for name, group in (("_mandos", "_mandos"),
2994
2969
("mandos", "mandos"),
2995
2970
("nobody", "nogroup")):
3013
2988
.format(uid, gid, os.strerror(error.errno)))
3014
2989
if error.errno != errno.EPERM:
3015
2990
raise
3016
2991
3017
2992
if debug:
3018
2993
# Enable all possible GnuTLS debugging
3019
2994
3020
2995
# "Use a log level over 10 to enable all debugging options."
3021
2996
# - GnuTLS manual
3022
2997
gnutls.global_set_log_level(11)
3023
2998
3024
2999
@gnutls.log_func
3025
3000
def debug_gnutls(level, string):
3026
3001
logger.debug("GnuTLS: %s", string[:-1])
3027
3002
3028
3003
gnutls.global_set_log_function(debug_gnutls)
3029
3004
3030
3005
# Redirect stdin so all checkers get /dev/null
3031
3006
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
3032
3007
os.dup2(null, sys.stdin.fileno())
3033
3008
if null > 2:
3034
3009
os.close(null)
3035
3010
3036
3011
# Need to fork before connecting to D-Bus
3037
3012
if not foreground:
3038
3013
# Close all input and output, do double fork, etc.
3039
3014
daemon()
3040
3015
3041
3016
# multiprocessing will use threads, so before we use GLib we need
3042
3017
# to inform GLib that threads will be used.
3043
3018
GLib.threads_init()
3044
3019
3045
3020
global main_loop
3046
3021
# From the Avahi example code
3047
3022
DBusGMainLoop(set_as_default=True)
3064
3039
if zeroconf:
3065
3040
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3066
3041
service = AvahiServiceToSyslog(
3067
name=server_settings["servicename"],
3068
servicetype="_mandos._tcp",
3069
protocol=protocol,
3070
bus=bus)
3042
name = server_settings["servicename"],
3043
servicetype = "_mandos._tcp",
3044
protocol = protocol,
3045
bus = bus)
3071
3046
if server_settings["interface"]:
3072
3047
service.interface = if_nametoindex(
3073
3048
server_settings["interface"].encode("utf-8"))
3074
3049
3075
3050
global multiprocessing_manager
3076
3051
multiprocessing_manager = multiprocessing.Manager()
3077
3052
3078
3053
client_class = Client
3079
3054
if use_dbus:
3080
client_class = functools.partial(ClientDBus, bus=bus)
3081
3055
client_class = functools.partial(ClientDBus, bus = bus)
3056
3082
3057
client_settings = Client.config_parser(client_config)
3083
3058
old_client_settings = {}
3084
3059
clients_data = {}
3085
3060
3086
3061
# This is used to redirect stdout and stderr for checker processes
3087
3062
global wnull
3088
wnull = open(os.devnull, "w") # A writable /dev/null
3063
wnull = open(os.devnull, "w") # A writable /dev/null
3089
3064
# Only used if server is running in foreground but not in debug
3090
3065
# mode
3091
3066
if debug or not foreground:
3092
3067
wnull.close()
3093
3068
3094
3069
# Get client data and settings from last running state.
3095
3070
if server_settings["restore"]:
3096
3071
try:
3097
3072
with open(stored_state_path, "rb") as stored_state:
3098
if sys.version_info.major == 2:
3073
if sys.version_info.major == 2:
3099
3074
clients_data, old_client_settings = pickle.load(
3100
3075
stored_state)
3101
3076
else:
3102
3077
bytes_clients_data, bytes_old_client_settings = (
3103
pickle.load(stored_state, encoding="bytes"))
3104
# Fix bytes to strings
3105
# clients_data
3078
pickle.load(stored_state, encoding = "bytes"))
3079
### Fix bytes to strings
3080
## clients_data
3106
3081
# .keys()
3107
clients_data = {(key.decode("utf-8")
3108
if isinstance(key, bytes)
3109
else key): value
3110
for key, value in
3111
bytes_clients_data.items()}
3082
clients_data = { (key.decode("utf-8")
3083
if isinstance(key, bytes)
3084
else key): value
3085
for key, value in
3086
bytes_clients_data.items() }
3112
3087
del bytes_clients_data
3113
3088
for key in clients_data:
3114
value = {(k.decode("utf-8")
3115
if isinstance(k, bytes) else k): v
3116
for k, v in
3117
clients_data[key].items()}
3089
value = { (k.decode("utf-8")
3090
if isinstance(k, bytes) else k): v
3091
for k, v in
3092
clients_data[key].items() }
3118
3093
clients_data[key] = value
3119
3094
# .client_structure
3120
3095
value["client_structure"] = [
3121
3096
(s.decode("utf-8")
3122
3097
if isinstance(s, bytes)
3123
3098
else s) for s in
3124
value["client_structure"]]
3099
value["client_structure"] ]
3125
3100
# .name & .host
3126
3101
for k in ("name", "host"):
3127
3102
if isinstance(value[k], bytes):
3128
3103
value[k] = value[k].decode("utf-8")
3129
# old_client_settings
3104
## old_client_settings
3130
3105
# .keys()
3131
3106
old_client_settings = {
3132
3107
(key.decode("utf-8")
3133
3108
if isinstance(key, bytes)
3134
3109
else key): value
3135
3110
for key, value in
3136
bytes_old_client_settings.items()}
3111
bytes_old_client_settings.items() }
3137
3112
del bytes_old_client_settings
3138
3113
# .host
3139
3114
for value in old_client_settings.values():
3153
3128
logger.warning("Could not load persistent state: "
3154
3129
"EOFError:",
3155
3130
exc_info=e)
3156
3131
3157
3132
with PGPEngine() as pgp:
3158
3133
for client_name, client in clients_data.items():
3159
3134
# Skip removed clients
3160
3135
if client_name not in client_settings:
3161
3136
continue
3162
3137
3163
3138
# Decide which value to use after restoring saved state.
3164
3139
# We have three different values: Old config file,
3165
3140
# new config file, and saved state.
3176
3151
client[name] = value
3177
3152
except KeyError:
3178
3153
pass
3179
3154
3180
3155
# Clients who has passed its expire date can still be
3181
3156
# enabled if its last checker was successful. A Client
3182
3157
# whose checker succeeded before we stored its state is
3215
3190
client_name))
3216
3191
client["secret"] = (client_settings[client_name]
3217
3192
["secret"])
3218
3193
3219
3194
# Add/remove clients based on new changes made to config
3220
3195
for client_name in (set(old_client_settings)
3221
3196
- set(client_settings)):
3223
3198
for client_name in (set(client_settings)
3224
3199
- set(old_client_settings)):
3225
3200
clients_data[client_name] = client_settings[client_name]
3226
3201
3227
3202
# Create all client objects
3228
3203
for client_name, client in clients_data.items():
3229
3204
tcp_server.clients[client_name] = client_class(
3230
name=client_name,
3231
settings=client,
3232
server_settings=server_settings)
3233
3205
name = client_name,
3206
settings = client,
3207
server_settings = server_settings)
3208
3234
3209
if not tcp_server.clients:
3235
3210
logger.warning("No clients defined")
3236
3211
3237
3212
if not foreground:
3238
3213
if pidfile is not None:
3239
3214
pid = os.getpid()
3245
3220
pidfilename, pid)
3246
3221
del pidfile
3247
3222
del pidfilename
3248
3223
3249
3224
for termsig in (signal.SIGHUP, signal.SIGTERM):
3250
3225
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3251
3226
lambda: main_loop.quit() and False)
3252
3227
3253
3228
if use_dbus:
3254
3229
3255
3230
@alternate_dbus_interfaces(
3256
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3231
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
3257
3232
class MandosDBusService(DBusObjectWithObjectManager):
3258
3233
"""A D-Bus proxy object"""
3259
3234
3260
3235
def __init__(self):
3261
3236
dbus.service.Object.__init__(self, bus, "/")
3262
3237
3263
3238
_interface = "se.recompile.Mandos"
3264
3239
3265
3240
@dbus.service.signal(_interface, signature="o")
3266
3241
def ClientAdded(self, objpath):
3267
3242
"D-Bus signal"
3268
3243
pass
3269
3244
3270
3245
@dbus.service.signal(_interface, signature="ss")
3271
3246
def ClientNotFound(self, fingerprint, address):
3272
3247
"D-Bus signal"
3273
3248
pass
3274
3249
3275
3250
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3276
3251
"true"})
3277
3252
@dbus.service.signal(_interface, signature="os")
3278
3253
def ClientRemoved(self, objpath, name):
3279
3254
"D-Bus signal"
3280
3255
pass
3281
3256
3282
3257
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3283
3258
"true"})
3284
3259
@dbus.service.method(_interface, out_signature="ao")
3286
3261
"D-Bus method"
3287
3262
return dbus.Array(c.dbus_object_path for c in
3288
3263
tcp_server.clients.values())
3289
3264
3290
3265
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3291
3266
"true"})
3292
3267
@dbus.service.method(_interface,
3294
3269
def GetAllClientsWithProperties(self):
3295
3270
"D-Bus method"
3296
3271
return dbus.Dictionary(
3297
{c.dbus_object_path: c.GetAll(
3272
{ c.dbus_object_path: c.GetAll(
3298
3273
"se.recompile.Mandos.Client")
3299
for c in tcp_server.clients.values()},
3274
for c in tcp_server.clients.values() },
3300
3275
signature="oa{sv}")
3301
3276
3302
3277
@dbus.service.method(_interface, in_signature="o")
3303
3278
def RemoveClient(self, object_path):
3304
3279
"D-Bus method"
3312
3287
self.client_removed_signal(c)
3313
3288
return
3314
3289
raise KeyError(object_path)
3315
3290
3316
3291
del _interface
3317
3292
3318
3293
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3319
out_signature="a{oa{sa{sv}}}")
3294
out_signature = "a{oa{sa{sv}}}")
3320
3295
def GetManagedObjects(self):
3321
3296
"""D-Bus method"""
3322
3297
return dbus.Dictionary(
3323
{client.dbus_object_path:
3324
dbus.Dictionary(
3325
{interface: client.GetAll(interface)
3326
for interface in
3327
client._get_all_interface_names()})
3328
for client in tcp_server.clients.values()})
3329
3298
{ client.dbus_object_path:
3299
dbus.Dictionary(
3300
{ interface: client.GetAll(interface)
3301
for interface in
3302
client._get_all_interface_names()})
3303
for client in tcp_server.clients.values()})
3304
3330
3305
def client_added_signal(self, client):
3331
3306
"""Send the new standard signal and the old signal"""
3332
3307
if use_dbus:
3334
3309
self.InterfacesAdded(
3335
3310
client.dbus_object_path,
3336
3311
dbus.Dictionary(
3337
{interface: client.GetAll(interface)
3338
for interface in
3339
client._get_all_interface_names()}))
3312
{ interface: client.GetAll(interface)
3313
for interface in
3314
client._get_all_interface_names()}))
3340
3315
# Old signal
3341
3316
self.ClientAdded(client.dbus_object_path)
3342
3317
3343
3318
def client_removed_signal(self, client):
3344
3319
"""Send the new standard signal and the old signal"""
3345
3320
if use_dbus:
3350
3325
# Old signal
3351
3326
self.ClientRemoved(client.dbus_object_path,
3352
3327
client.name)
3353
3328
3354
3329
mandos_dbus_service = MandosDBusService()
3355
3330
3356
3331
# Save modules to variables to exempt the modules from being
3357
3332
# unloaded before the function registered with atexit() is run.
3358
3333
mp = multiprocessing
3359
3334
wn = wnull
3360
3361
3335
def cleanup():
3362
3336
"Cleanup function; run on exit"
3363
3337
if zeroconf:
3364
3338
service.cleanup()
3365
3339
3366
3340
mp.active_children()
3367
3341
wn.close()
3368
3342
if not (tcp_server.clients or client_settings):
3369
3343
return
3370
3344
3371
3345
# Store client before exiting. Secrets are encrypted with key
3372
3346
# based on what config file has. If config file is
3373
3347
# removed/edited, old secret will thus be unrecovable.
3378
3352
client.encrypted_secret = pgp.encrypt(client.secret,
3379
3353
key)
3380
3354
client_dict = {}
3381
3355
3382
3356
# A list of attributes that can not be pickled
3383
3357
# + secret.
3384
exclude = {"bus", "changedstate", "secret",
3385
"checker", "server_settings"}
3358
exclude = { "bus", "changedstate", "secret",
3359
"checker", "server_settings" }
3386
3360
for name, typ in inspect.getmembers(dbus.service
3387
3361
.Object):
3388
3362
exclude.add(name)
3389
3363
3390
3364
client_dict["encrypted_secret"] = (client
3391
3365
.encrypted_secret)
3392
3366
for attr in client.client_structure:
3393
3367
if attr not in exclude:
3394
3368
client_dict[attr] = getattr(client, attr)
3395
3369
3396
3370
clients[client.name] = client_dict
3397
3371
del client_settings[client.name]["secret"]
3398
3372
3399
3373
try:
3400
3374
with tempfile.NamedTemporaryFile(
3401
3375
mode='wb',
3404
3378
dir=os.path.dirname(stored_state_path),
3405
3379
delete=False) as stored_state:
3406
3380
pickle.dump((clients, client_settings), stored_state,
3407
protocol=2)
3381
protocol = 2)
3408
3382
tempname = stored_state.name
3409
3383
os.rename(tempname, stored_state_path)
3410
3384
except (IOError, OSError) as e:
3420
3394
logger.warning("Could not save persistent state:",
3421
3395
exc_info=e)
3422
3396
raise
3423
3397
3424
3398
# Delete all clients, and settings from config
3425
3399
while tcp_server.clients:
3426
3400
name, client = tcp_server.clients.popitem()
3432
3406
if use_dbus:
3433
3407
mandos_dbus_service.client_removed_signal(client)
3434
3408
client_settings.clear()
3435
3409
3436
3410
atexit.register(cleanup)
3437
3411
3438
3412
for client in tcp_server.clients.values():
3439
3413
if use_dbus:
3440
3414
# Emit D-Bus signal for adding
3442
3416
# Need to initiate checking of clients
3443
3417
if client.enabled:
3444
3418
client.init_checker()
3445
3419
3446
3420
tcp_server.enable()
3447
3421
tcp_server.server_activate()
3448
3422
3449
3423
# Find out what port we got
3450
3424
if zeroconf:
3451
3425
service.port = tcp_server.socket.getsockname()[1]
3456
3430
else: # IPv4
3457
3431
logger.info("Now listening on address %r, port %d",
3458
3432
*tcp_server.socket.getsockname())
3459
3460
# service.interface = tcp_server.socket.getsockname()[3]
3461
3433
3434
#service.interface = tcp_server.socket.getsockname()[3]
3435
3462
3436
try:
3463
3437
if zeroconf:
3464
3438
# From the Avahi example code
3469
3443
cleanup()
3470
3444
sys.exit(1)
3471
3445
# End of Avahi example code
3472
3446
3473
3447
GLib.io_add_watch(tcp_server.fileno(), GLib.IO_IN,
3474
3448
lambda *args, **kwargs:
3475
3449
(tcp_server.handle_request
3476
3450
(*args[2:], **kwargs) or True))
3477
3451
3478
3452
logger.debug("Starting main loop")
3479
3453
main_loop.run()
3480
3454
except AvahiError as error:
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0