/mandos/trunk : revision 789

1

#!/usr/bin/python

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#!/usr/bin/python2.7

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# -*- mode: python; coding: utf-8 -*-

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#

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# Mandos server - give out binary blobs to connecting clients.

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# "AvahiService" class, and some lines in "main".

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#

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# Everything else is

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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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import argparse

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import datetime

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import errno

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import gnutls.crypto

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import gnutls.connection

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import gnutls.errors

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import gnutls.library.functions

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import gnutls.library.constants

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import gnutls.library.types

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try:

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import ConfigParser as configparser

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except ImportError:

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import dbus

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import dbus.service

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try:

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from gi.repository import GObject

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import gobject

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except ImportError:

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import gobject as GObject

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from gi.repository import GObject as gobject

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import avahi

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from dbus.mainloop.glib import DBusGMainLoop

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import ctypes

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if sys.version_info.major == 2:

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str = unicode

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version = "1.7.3"

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version = "1.7.0"

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stored_state_file = "clients.pickle"

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logger = logging.getLogger()

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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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try:

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output = subprocess.check_output(["gpgconf"])

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for line in output.splitlines():

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name, text, path = line.split(":")

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if name == "gpg":

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self.gpg = path

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break

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except OSError as e:

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if e.errno != errno.ENOENT:

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raise

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self.gnupgargs = ['--batch',

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'--homedir', self.tempdir,

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'--home', self.tempdir,

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'--force-mdc',

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'--quiet',

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'--no-use-agent']

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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, '--symmetric',

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proc = subprocess.Popen(['gpg', '--symmetric',

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'--passphrase-file',

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passfile.name]

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+ self.gnupgargs,

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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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proc = subprocess.Popen(['gpg', '--decrypt',

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'--passphrase-file',

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passfile.name]

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+ self.gnupgargs,

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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."""

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_library = ctypes.cdll.LoadLibrary(

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ctypes.util.find_library("gnutls"))

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_need_version = "3.3.0"

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def __init__(self):

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# Need to use class name "GnuTLS" here, since this method is

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# called before the assignment to the "gnutls" global variable

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# happens.

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if GnuTLS.check_version(self._need_version) is None:

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raise GnuTLS.Error("Needs GnuTLS {} or later"

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.format(self._need_version))

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# 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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# Constants

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E_SUCCESS = 0

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E_INTERRUPTED = -52

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E_AGAIN = -28

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CRT_OPENPGP = 2

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CLIENT = 2

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SHUT_RDWR = 0

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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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# Types

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class session_int(ctypes.Structure):

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_fields_ = []

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session_t = ctypes.POINTER(session_int)

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class certificate_credentials_st(ctypes.Structure):

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_fields_ = []

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certificate_credentials_t = ctypes.POINTER(

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certificate_credentials_st)

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certificate_type_t = ctypes.c_int

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class datum_t(ctypes.Structure):

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_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),

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('size', ctypes.c_uint)]

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class openpgp_crt_int(ctypes.Structure):

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_fields_ = []

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openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)

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openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h

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log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)

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credentials_type_t = ctypes.c_int #

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transport_ptr_t = ctypes.c_void_p

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close_request_t = ctypes.c_int

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# Exceptions

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class Error(Exception):

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# We need to use the class name "GnuTLS" here, since this

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# exception might be raised from within GnuTLS.__init__,

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# which is called before the assignment to the "gnutls"

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# global variable has happened.

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def __init__(self, message = None, code = None, args=()):

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# Default usage is by a message string, but if a return

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# code is passed, convert it to a string with

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# gnutls.strerror()

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self.code = code

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if message is None and code is not None:

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message = GnuTLS.strerror(code)

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return super(GnuTLS.Error, self).__init__(

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message, *args)

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class CertificateSecurityError(Error):

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pass

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# Classes

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class Credentials(object):

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def __init__(self):

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self._c_object = gnutls.certificate_credentials_t()

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gnutls.certificate_allocate_credentials(

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ctypes.byref(self._c_object))

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self.type = gnutls.CRD_CERTIFICATE

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def __del__(self):

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gnutls.certificate_free_credentials(self._c_object)

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class ClientSession(object):

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def __init__(self, socket, credentials = None):

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self._c_object = gnutls.session_t()

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gnutls.init(ctypes.byref(self._c_object), gnutls.CLIENT)

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gnutls.set_default_priority(self._c_object)

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gnutls.transport_set_ptr(self._c_object, socket.fileno())

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gnutls.handshake_set_private_extensions(self._c_object,

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True)

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self.socket = socket

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if credentials is None:

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credentials = gnutls.Credentials()

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gnutls.credentials_set(self._c_object, credentials.type,

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ctypes.cast(credentials._c_object,

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ctypes.c_void_p))

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self.credentials = credentials

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def __del__(self):

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gnutls.deinit(self._c_object)

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def handshake(self):

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return gnutls.handshake(self._c_object)

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def send(self, data):

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data = bytes(data)

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data_len = len(data)

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while data_len > 0:

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data_len -= gnutls.record_send(self._c_object,

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data[-data_len:],

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data_len)

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def bye(self):

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return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)

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# Error handling functions

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def _error_code(result):

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"""A function to raise exceptions on errors, suitable

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for the 'restype' attribute on ctypes functions"""

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if result >= 0:

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return result

563

if result == gnutls.E_NO_CERTIFICATE_FOUND:

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raise gnutls.CertificateSecurityError(code = result)

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raise gnutls.Error(code = result)

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def _retry_on_error(result, func, arguments):

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"""A function to retry on some errors, suitable

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for the 'errcheck' attribute on ctypes functions"""

570

while result < 0:

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if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):

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return _error_code(result)

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result = func(*arguments)

574

return result

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# Unless otherwise indicated, the function declarations below are

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# all from the gnutls/gnutls.h C header file.

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579

# Functions

580

priority_set_direct = _library.gnutls_priority_set_direct

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priority_set_direct.argtypes = [session_t, ctypes.c_char_p,

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ctypes.POINTER(ctypes.c_char_p)]

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priority_set_direct.restype = _error_code

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init = _library.gnutls_init

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init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]

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init.restype = _error_code

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set_default_priority = _library.gnutls_set_default_priority

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set_default_priority.argtypes = [session_t]

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set_default_priority.restype = _error_code

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record_send = _library.gnutls_record_send

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record_send.argtypes = [session_t, ctypes.c_void_p,

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ctypes.c_size_t]

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record_send.restype = ctypes.c_ssize_t

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record_send.errcheck = _retry_on_error

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certificate_allocate_credentials = (

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_library.gnutls_certificate_allocate_credentials)

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certificate_allocate_credentials.argtypes = [

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ctypes.POINTER(certificate_credentials_t)]

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certificate_allocate_credentials.restype = _error_code

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certificate_free_credentials = (

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_library.gnutls_certificate_free_credentials)

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certificate_free_credentials.argtypes = [certificate_credentials_t]

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certificate_free_credentials.restype = None

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610

handshake_set_private_extensions = (

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_library.gnutls_handshake_set_private_extensions)

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handshake_set_private_extensions.argtypes = [session_t,

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ctypes.c_int]

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handshake_set_private_extensions.restype = None

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credentials_set = _library.gnutls_credentials_set

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credentials_set.argtypes = [session_t, credentials_type_t,

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ctypes.c_void_p]

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credentials_set.restype = _error_code

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strerror = _library.gnutls_strerror

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strerror.argtypes = [ctypes.c_int]

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strerror.restype = ctypes.c_char_p

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certificate_type_get = _library.gnutls_certificate_type_get

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certificate_type_get.argtypes = [session_t]

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certificate_type_get.restype = _error_code

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certificate_get_peers = _library.gnutls_certificate_get_peers

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certificate_get_peers.argtypes = [session_t,

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ctypes.POINTER(ctypes.c_uint)]

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certificate_get_peers.restype = ctypes.POINTER(datum_t)

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global_set_log_level = _library.gnutls_global_set_log_level

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global_set_log_level.argtypes = [ctypes.c_int]

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global_set_log_level.restype = None

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global_set_log_function = _library.gnutls_global_set_log_function

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global_set_log_function.argtypes = [log_func]

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global_set_log_function.restype = None

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deinit = _library.gnutls_deinit

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deinit.argtypes = [session_t]

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deinit.restype = None

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handshake = _library.gnutls_handshake

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handshake.argtypes = [session_t]

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handshake.restype = _error_code

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handshake.errcheck = _retry_on_error

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transport_set_ptr = _library.gnutls_transport_set_ptr

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transport_set_ptr.argtypes = [session_t, transport_ptr_t]

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transport_set_ptr.restype = None

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bye = _library.gnutls_bye

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bye.argtypes = [session_t, close_request_t]

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bye.restype = _error_code

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bye.errcheck = _retry_on_error

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660

check_version = _library.gnutls_check_version

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check_version.argtypes = [ctypes.c_char_p]

662

check_version.restype = ctypes.c_char_p

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664

# All the function declarations below are from gnutls/openpgp.h

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openpgp_crt_init = _library.gnutls_openpgp_crt_init

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openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]

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openpgp_crt_init.restype = _error_code

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openpgp_crt_import = _library.gnutls_openpgp_crt_import

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openpgp_crt_import.argtypes = [openpgp_crt_t,

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ctypes.POINTER(datum_t),

673

openpgp_crt_fmt_t]

674

openpgp_crt_import.restype = _error_code

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676

openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self

677

openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,

678

ctypes.POINTER(ctypes.c_uint)]

679

openpgp_crt_verify_self.restype = _error_code

680

681

openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit

682

openpgp_crt_deinit.argtypes = [openpgp_crt_t]

683

openpgp_crt_deinit.restype = None

684

685

openpgp_crt_get_fingerprint = (

686

_library.gnutls_openpgp_crt_get_fingerprint)

687

openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,

688

ctypes.c_void_p,

689

ctypes.POINTER(

690

ctypes.c_size_t)]

691

openpgp_crt_get_fingerprint.restype = _error_code

692

693

# Remove non-public functions

694

del _error_code, _retry_on_error

695

# Create the global "gnutls" object, simulating a module

696

gnutls = GnuTLS()

697

698

438

def call_pipe(connection, # : multiprocessing.Connection

699

439

func, *args, **kwargs):

700

440

"""This function is meant to be called by multiprocessing.Process

715

455

checker: subprocess.Popen(); a running checker process used

716

456

to see if the client lives.

717

457

'None' if no process is running.

718

checker_callback_tag: a GObject event source tag, or None

458

checker_callback_tag: a gobject event source tag, or None

719

459

checker_command: string; External command which is run to check

720

460

if client lives. %() expansions are done at

721

461

runtime with vars(self) as dict, so that for

722

462

instance %(name)s can be used in the command.

723

checker_initiator_tag: a GObject event source tag, or None

463

checker_initiator_tag: a gobject event source tag, or None

724

464

created: datetime.datetime(); (UTC) object creation

725

465

client_structure: Object describing what attributes a client has

726

466

and is used for storing the client at exit

727

467

current_checker_command: string; current running checker_command

728

disable_initiator_tag: a GObject event source tag, or None

468

disable_initiator_tag: a gobject event source tag, or None

729

469

enabled: bool()

730

470

fingerprint: string (40 or 32 hexadecimal digits); used to

731

471

uniquely identify the client

885

625

if not quiet:

886

626

logger.info("Disabling client %s", self.name)

887

627

if getattr(self, "disable_initiator_tag", None) is not None:

888

GObject.source_remove(self.disable_initiator_tag)

628

gobject.source_remove(self.disable_initiator_tag)

889

629

self.disable_initiator_tag = None

890

630

self.expires = None

891

631

if getattr(self, "checker_initiator_tag", None) is not None:

892

GObject.source_remove(self.checker_initiator_tag)

632

gobject.source_remove(self.checker_initiator_tag)

893

633

self.checker_initiator_tag = None

894

634

self.stop_checker()

895

635

self.enabled = False

896

636

if not quiet:

897

637

self.send_changedstate()

898

# Do not run this again if called by a GObject.timeout_add

638

# Do not run this again if called by a gobject.timeout_add

899

639

return False

900

640

901

641

def __del__(self):

905

645

# Schedule a new checker to be started an 'interval' from now,

906

646

# and every interval from then on.

907

647

if self.checker_initiator_tag is not None:

908

GObject.source_remove(self.checker_initiator_tag)

909

self.checker_initiator_tag = GObject.timeout_add(

648

gobject.source_remove(self.checker_initiator_tag)

649

self.checker_initiator_tag = gobject.timeout_add(

910

650

int(self.interval.total_seconds() * 1000),

911

651

self.start_checker)

912

652

# Schedule a disable() when 'timeout' has passed

913

653

if self.disable_initiator_tag is not None:

914

GObject.source_remove(self.disable_initiator_tag)

915

self.disable_initiator_tag = GObject.timeout_add(

654

gobject.source_remove(self.disable_initiator_tag)

655

self.disable_initiator_tag = gobject.timeout_add(

916

656

int(self.timeout.total_seconds() * 1000), self.disable)

917

657

# Also start a new checker *right now*.

918

658

self.start_checker()

954

694

if timeout is None:

955

695

timeout = self.timeout

956

696

if self.disable_initiator_tag is not None:

957

GObject.source_remove(self.disable_initiator_tag)

697

gobject.source_remove(self.disable_initiator_tag)

958

698

self.disable_initiator_tag = None

959

699

if getattr(self, "enabled", False):

960

self.disable_initiator_tag = GObject.timeout_add(

700

self.disable_initiator_tag = gobject.timeout_add(

961

701

int(timeout.total_seconds() * 1000), self.disable)

962

702

self.expires = datetime.datetime.utcnow() + timeout

963

703

1018

758

args = (pipe[1], subprocess.call, command),

1019

759

kwargs = popen_args)

1020

760

self.checker.start()

1021

self.checker_callback_tag = GObject.io_add_watch(

1022

pipe[0].fileno(), GObject.IO_IN,

761

self.checker_callback_tag = gobject.io_add_watch(

762

pipe[0].fileno(), gobject.IO_IN,

1023

763

self.checker_callback, pipe[0], command)

1024

# Re-run this periodically if run by GObject.timeout_add

764

# Re-run this periodically if run by gobject.timeout_add

1025

765

return True

1026

766

1027

767

def stop_checker(self):

1028

768

"""Force the checker process, if any, to stop."""

1029

769

if self.checker_callback_tag:

1030

GObject.source_remove(self.checker_callback_tag)

770

gobject.source_remove(self.checker_callback_tag)

1031

771

self.checker_callback_tag = None

1032

772

if getattr(self, "checker", None) is None:

1033

773

return

1807

1547

1808

1548

def approve(self, value=True):

1809

1549

self.approved = value

1810

GObject.timeout_add(int(self.approval_duration.total_seconds()

1550

gobject.timeout_add(int(self.approval_duration.total_seconds()

1811

1551

* 1000), self._reset_approved)

1812

1552

self.send_changedstate()

1813

1553

2024

1764

if (getattr(self, "disable_initiator_tag", None)

2025

1765

is None):

2026

1766

return

2027

GObject.source_remove(self.disable_initiator_tag)

2028

self.disable_initiator_tag = GObject.timeout_add(

1767

gobject.source_remove(self.disable_initiator_tag)

1768

self.disable_initiator_tag = gobject.timeout_add(

2029

1769

int((self.expires - now).total_seconds() * 1000),

2030

1770

self.disable)

2031

1771

2051

1791

return

2052

1792

if self.enabled:

2053

1793

# Reschedule checker run

2054

GObject.source_remove(self.checker_initiator_tag)

2055

self.checker_initiator_tag = GObject.timeout_add(

1794

gobject.source_remove(self.checker_initiator_tag)

1795

self.checker_initiator_tag = gobject.timeout_add(

2056

1796

value, self.start_checker)

2057

1797

self.start_checker() # Start one now, too

2058

1798

2140

1880

logger.debug("Pipe FD: %d",

2141

1881

self.server.child_pipe.fileno())

2142

1882

2143

session = gnutls.ClientSession(self.request)

1883

session = gnutls.connection.ClientSession(

1884

self.request, gnutls.connection .X509Credentials())

1885

1886

# Note: gnutls.connection.X509Credentials is really a

1887

# generic GnuTLS certificate credentials object so long as

1888

# no X.509 keys are added to it. Therefore, we can use it

1889

# here despite using OpenPGP certificates.

2144

1890

2145

1891

#priority = ':'.join(("NONE", "+VERS-TLS1.1",

2146

1892

# "+AES-256-CBC", "+SHA1",

2150

1896

priority = self.server.gnutls_priority

2151

1897

if priority is None:

2152

1898

priority = "NORMAL"

2153

gnutls.priority_set_direct(session._c_object, priority,

2154

None)

1899

gnutls.library.functions.gnutls_priority_set_direct(

1900

session._c_object, priority, None)

2155

1901

2156

1902

# Start communication using the Mandos protocol

2157

1903

# Get protocol number

2167

1913

# Start GnuTLS connection

2168

1914

try:

2169

1915

session.handshake()

2170

except gnutls.Error as error:

1916

except gnutls.errors.GNUTLSError as error:

2171

1917

logger.warning("Handshake failed: %s", error)

2172

1918

# Do not run session.bye() here: the session is not

2173

1919

# established. Just abandon the request.

2179

1925

try:

2180

1926

fpr = self.fingerprint(

2181

1927

self.peer_certificate(session))

2182

except (TypeError, gnutls.Error) as error:

1928

except (TypeError,

1929

gnutls.errors.GNUTLSError) as error:

2183

1930

logger.warning("Bad certificate: %s", error)

2184

1931

return

2185

1932

logger.debug("Fingerprint: %s", fpr)

2243

1990

else:

2244

1991

delay -= time2 - time

2245

1992

2246

try:

2247

session.send(client.secret)

2248

except gnutls.Error as error:

2249

logger.warning("gnutls send failed",

2250

exc_info = error)

2251

return

1993

sent_size = 0

1994

while sent_size < len(client.secret):

1995

try:

1996

sent = session.send(client.secret[sent_size:])

1997

except gnutls.errors.GNUTLSError as error:

1998

logger.warning("gnutls send failed",

1999

exc_info=error)

2000

return

2001

logger.debug("Sent: %d, remaining: %d", sent,

2002

len(client.secret) - (sent_size

2003

+ sent))

2004

sent_size += sent

2252

2005

2253

2006

logger.info("Sending secret to %s", client.name)

2254

2007

# bump the timeout using extended_timeout

2262

2015

client.approvals_pending -= 1

2263

2016

try:

2264

2017

session.bye()

2265

except gnutls.Error as error:

2018

except gnutls.errors.GNUTLSError as error:

2266

2019

logger.warning("GnuTLS bye failed",

2267

2020

exc_info=error)

2268

2021

2270

2023

def peer_certificate(session):

2271

2024

"Return the peer's OpenPGP certificate as a bytestring"

2272

2025

# If not an OpenPGP certificate...

2273

if (gnutls.certificate_type_get(session._c_object)

2274

!= gnutls.CRT_OPENPGP):

2275

# ...return invalid data

2276

return b""

2026

if (gnutls.library.functions.gnutls_certificate_type_get(

2027

session._c_object)

2028

!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):

2029

# ...do the normal thing

2030

return session.peer_certificate

2277

2031

list_size = ctypes.c_uint(1)

2278

cert_list = (gnutls.certificate_get_peers

2032

cert_list = (gnutls.library.functions

2033

.gnutls_certificate_get_peers

2279

2034

(session._c_object, ctypes.byref(list_size)))

2280

2035

if not bool(cert_list) and list_size.value != 0:

2281

raise gnutls.Error("error getting peer certificate")

2036

raise gnutls.errors.GNUTLSError("error getting peer"

2037

" certificate")

2282

2038

if list_size.value == 0:

2283

2039

return None

2284

2040

cert = cert_list[0]

2288

2044

def fingerprint(openpgp):

2289

2045

"Convert an OpenPGP bytestring to a hexdigit fingerprint"

2290

2046

# New GnuTLS "datum" with the OpenPGP public key

2291

datum = gnutls.datum_t(

2047

datum = gnutls.library.types.gnutls_datum_t(

2292

2048

ctypes.cast(ctypes.c_char_p(openpgp),

2293

2049

ctypes.POINTER(ctypes.c_ubyte)),

2294

2050

ctypes.c_uint(len(openpgp)))

2295

2051

# New empty GnuTLS certificate

2296

crt = gnutls.openpgp_crt_t()

2297

gnutls.openpgp_crt_init(ctypes.byref(crt))

2052

crt = gnutls.library.types.gnutls_openpgp_crt_t()

2053

gnutls.library.functions.gnutls_openpgp_crt_init(

2054

ctypes.byref(crt))

2298

2055

# Import the OpenPGP public key into the certificate

2299

gnutls.openpgp_crt_import(crt, ctypes.byref(datum),

2300

gnutls.OPENPGP_FMT_RAW)

2056

gnutls.library.functions.gnutls_openpgp_crt_import(

2057

crt, ctypes.byref(datum),

2058

gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)

2301

2059

# Verify the self signature in the key

2302

2060

crtverify = ctypes.c_uint()

2303

gnutls.openpgp_crt_verify_self(crt, 0,

2304

ctypes.byref(crtverify))

2061

gnutls.library.functions.gnutls_openpgp_crt_verify_self(

2062

crt, 0, ctypes.byref(crtverify))

2305

2063

if crtverify.value != 0:

2306

gnutls.openpgp_crt_deinit(crt)

2307

raise gnutls.CertificateSecurityError("Verify failed")

2064

gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)

2065

raise gnutls.errors.CertificateSecurityError(

2066

"Verify failed")

2308

2067

# New buffer for the fingerprint

2309

2068

buf = ctypes.create_string_buffer(20)

2310

2069

buf_len = ctypes.c_size_t()

2311

2070

# Get the fingerprint from the certificate into the buffer

2312

gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),

2313

ctypes.byref(buf_len))

2071

gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint(

2072

crt, ctypes.byref(buf), ctypes.byref(buf_len))

2314

2073

# Deinit the certificate

2315

gnutls.openpgp_crt_deinit(crt)

2074

gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)

2316

2075

# Convert the buffer to a Python bytestring

2317

2076

fpr = ctypes.string_at(buf, buf_len.value)

2318

2077

# Convert the bytestring to hexadecimal notation

2462

2221

gnutls_priority GnuTLS priority string

2463

2222

use_dbus: Boolean; to emit D-Bus signals or not

2464

2223

2465

Assumes a GObject.MainLoop event loop.

2224

Assumes a gobject.MainLoop event loop.

2466

2225

"""

2467

2226

2468

2227

def __init__(self, server_address, RequestHandlerClass,

2493

2252

2494

2253

def add_pipe(self, parent_pipe, proc):

2495

2254

# Call "handle_ipc" for both data and EOF events

2496

GObject.io_add_watch(

2255

gobject.io_add_watch(

2497

2256

parent_pipe.fileno(),

2498

GObject.IO_IN | GObject.IO_HUP,

2257

gobject.IO_IN | gobject.IO_HUP,

2499

2258

functools.partial(self.handle_ipc,

2500

2259

parent_pipe = parent_pipe,

2501

2260

proc = proc))

2505

2264

proc = None,

2506

2265

client_object=None):

2507

2266

# error, or the other end of multiprocessing.Pipe has closed

2508

if condition & (GObject.IO_ERR | GObject.IO_HUP):

2267

if condition & (gobject.IO_ERR | gobject.IO_HUP):

2509

2268

# Wait for other process to exit

2510

2269

proc.join()

2511

2270

return False

2532

2291

parent_pipe.send(False)

2533

2292

return False

2534

2293

2535

GObject.io_add_watch(

2294

gobject.io_add_watch(

2536

2295

parent_pipe.fileno(),

2537

GObject.IO_IN | GObject.IO_HUP,

2296

gobject.IO_IN | gobject.IO_HUP,

2538

2297

functools.partial(self.handle_ipc,

2539

2298

parent_pipe = parent_pipe,

2540

2299

proc = proc,

2922

2681

logger.error("Could not open file %r", pidfilename,

2923

2682

exc_info=e)

2924

2683

2925

for name, group in (("_mandos", "_mandos"),

2926

("mandos", "mandos"),

2927

("nobody", "nogroup")):

2684

for name in ("_mandos", "mandos", "nobody"):

2928

2685

try:

2929

2686

uid = pwd.getpwnam(name).pw_uid

2930

gid = pwd.getpwnam(group).pw_gid

2687

gid = pwd.getpwnam(name).pw_gid

2931

2688

break

2932

2689

except KeyError:

2933

2690

continue

2946

2703

2947

2704

# "Use a log level over 10 to enable all debugging options."

2948

2705

# - GnuTLS manual

2949

gnutls.global_set_log_level(11)

2706

gnutls.library.functions.gnutls_global_set_log_level(11)

2950

2707

2951

@gnutls.log_func

2708

@gnutls.library.types.gnutls_log_func

2952

2709

def debug_gnutls(level, string):

2953

2710

logger.debug("GnuTLS: %s", string[:-1])

2954

2711

2955

gnutls.global_set_log_function(debug_gnutls)

2712

gnutls.library.functions.gnutls_global_set_log_function(

2713

debug_gnutls)

2956

2714

2957

2715

# Redirect stdin so all checkers get /dev/null

2958

2716

null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)

2965

2723

# Close all input and output, do double fork, etc.

2966

2724

daemon()

2967

2725

2968

# multiprocessing will use threads, so before we use GObject we

2969

# need to inform GObject that threads will be used.

2970

GObject.threads_init()

2726

# multiprocessing will use threads, so before we use gobject we

2727

# need to inform gobject that threads will be used.

2728

gobject.threads_init()

2971

2729

2972

2730

global main_loop

2973

2731

# From the Avahi example code

2974

2732

DBusGMainLoop(set_as_default=True)

2975

main_loop = GObject.MainLoop()

2733

main_loop = gobject.MainLoop()

2976

2734

bus = dbus.SystemBus()

2977

2735

# End of Avahi example code

2978

2736

if use_dbus:

3306

3064

# Don't signal the disabling

3307

3065

client.disable(quiet=True)

3308

3066

# Emit D-Bus signal for removal

3309

if use_dbus:

3310

mandos_dbus_service.client_removed_signal(client)

3067

mandos_dbus_service.client_removed_signal(client)

3311

3068

client_settings.clear()

3312

3069

3313

3070

atexit.register(cleanup)

3347

3104

sys.exit(1)

3348

3105

# End of Avahi example code

3349

3106

3350

GObject.io_add_watch(tcp_server.fileno(), GObject.IO_IN,

3107

gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,

3351

3108

lambda *args, **kwargs:

3352

3109

(tcp_server.handle_request

3353

3110

(*args[2:], **kwargs) or True))