/mandos/trunk : revision 654

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#!/usr/bin/python2.7

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#!/usr/bin/python

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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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except ImportError:

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SO_BINDTODEVICE = None

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if sys.version_info.major == 2:

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str = unicode

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version = "1.6.9"

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version = "1.6.3"

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stored_state_file = "clients.pickle"

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logger = logging.getLogger()

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syslogger = None

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syslogger = (logging.handlers.SysLogHandler

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(facility = logging.handlers.SysLogHandler.LOG_DAEMON,

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address = str("/dev/log")))

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try:

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if_nametoindex = (ctypes.cdll.LoadLibrary

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SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h

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with contextlib.closing(socket.socket()) as s:

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ifreq = fcntl.ioctl(s, SIOCGIFINDEX,

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struct.pack(b"16s16x", interface))

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interface_index = struct.unpack("I", ifreq[16:20])[0]

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struct.pack(str("16s16x"),

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interface))

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interface_index = struct.unpack(str("I"),

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ifreq[16:20])[0]

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return interface_index

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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 =

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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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class AvahiError(Exception):

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def __init__(self, value, *args, **kwargs):

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self.value = value

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return super(AvahiError, self).__init__(value, *args,

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**kwargs)

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super(AvahiError, self).__init__(value, *args, **kwargs)

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def __unicode__(self):

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return unicode(repr(self.value))

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class AvahiServiceError(AvahiError):

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pass

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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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def rename(self):

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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("No suitable Zeroconf service name found"

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" after %i retries, exiting.",

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self.rename_count)

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raise AvahiServiceError("Too many renames")

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self.name = str(self.server

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.GetAlternativeServiceName(self.name))

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self.rename_count += 1

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self.name = unicode(self.server

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.GetAlternativeServiceName(self.name))

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logger.info("Changing Zeroconf service name to %r ...",

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self.name)

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if remove:

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self.remove()

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self.remove()

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try:

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self.add()

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except dbus.exceptions.DBusException as error:

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if (error.get_dbus_name()

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== "org.freedesktop.Avahi.CollisionError"):

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logger.info("Local Zeroconf service name collision.")

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return self.rename(remove=False)

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else:

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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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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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self.rename_count += 1

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def remove(self):

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"""Derived from the Avahi example code"""

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self.rename()

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elif state == avahi.ENTRY_GROUP_FAILURE:

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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}"

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unicode(error))

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raise AvahiGroupError("State changed: {0!s}"

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.format(error))

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def cleanup(self):

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class AvahiServiceToSyslog(AvahiService):

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def rename(self, *args, **kwargs):

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def rename(self):

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"""Add the new name to the syslog messages"""

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ret = AvahiService.rename(self, *args, **kwargs)

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ret = AvahiService.rename(self)

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syslogger.setFormatter(logging.Formatter

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('Mandos ({}) [%(process)d]:'

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('Mandos ({0}) [%(process)d]:'

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' %(levelname)s: %(message)s'

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.format(self.name)))

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return ret

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def timedelta_to_milliseconds(td):

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"Convert a datetime.timedelta() to milliseconds"

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return ((td.days * 24 * 60 * 60 * 1000)

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+ (td.seconds * 1000)

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+ (td.microseconds // 1000))

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class Client(object):

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"""A representation of a client host served by this server.

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"enabled": "True",

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}

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def timeout_milliseconds(self):

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"Return the 'timeout' attribute in milliseconds"

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return timedelta_to_milliseconds(self.timeout)

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def extended_timeout_milliseconds(self):

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"Return the 'extended_timeout' attribute in milliseconds"

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return timedelta_to_milliseconds(self.extended_timeout)

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def interval_milliseconds(self):

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"Return the 'interval' attribute in milliseconds"

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return timedelta_to_milliseconds(self.interval)

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def approval_delay_milliseconds(self):

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return timedelta_to_milliseconds(self.approval_delay)

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@staticmethod

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def config_parser(config):

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"""Construct a new dict of client settings of this form:

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client["enabled"] = config.getboolean(client_name,

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"enabled")

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# Uppercase and remove spaces from fingerprint for later

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# comparison purposes with return value from the

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# fingerprint() function

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client["fingerprint"] = (section["fingerprint"].upper()

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.replace(" ", ""))

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if "secret" in section:

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"rb") as secfile:

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client["secret"] = secfile.read()

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else:

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raise TypeError("No secret or secfile for section {}"

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raise TypeError("No secret or secfile for section {0}"

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.format(section))

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client["timeout"] = string_to_delta(section["timeout"])

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client["extended_timeout"] = string_to_delta(

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server_settings = {}

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self.server_settings = server_settings

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# adding all client settings

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for setting, value in settings.items():

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for setting, value in settings.iteritems():

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setattr(self, setting, value)

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if self.enabled:

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self.expires = None

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logger.debug("Creating client %r", self.name)

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# Uppercase and remove spaces from fingerprint for later

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# comparison purposes with return value from the fingerprint()

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# function

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logger.debug(" Fingerprint: %s", self.fingerprint)

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self.created = settings.get("created",

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datetime.datetime.utcnow())

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if self.checker_initiator_tag is not None:

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gobject.source_remove(self.checker_initiator_tag)

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self.checker_initiator_tag = (gobject.timeout_add

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(int(self.interval

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.total_seconds() * 1000),

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(self.interval_milliseconds(),

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self.start_checker))

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

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if self.disable_initiator_tag is not None:

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gobject.source_remove(self.disable_initiator_tag)

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self.disable_initiator_tag = (gobject.timeout_add

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(int(self.timeout

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.total_seconds() * 1000),

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self.disable))

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(self.timeout_milliseconds(),

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self.disable))

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# Also start a new checker *right now*.

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self.start_checker()

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self.disable_initiator_tag = None

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

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self.disable_initiator_tag = (gobject.timeout_add

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(int(timeout.total_seconds()

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* 1000), self.disable))

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(timedelta_to_milliseconds

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(timeout), self.disable))

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

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def need_approval(self):

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# Start a new checker if needed

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if self.checker is None:

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# Escape attributes for the shell

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escaped_attrs = { attr:

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re.escape(str(getattr(self, attr)))

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for attr in self.runtime_expansions }

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escaped_attrs = dict(

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(attr, re.escape(unicode(getattr(self, attr))))

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for attr in

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self.runtime_expansions)

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try:

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command = self.checker_command % escaped_attrs

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except TypeError as error:

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# "Set" method, so we fail early here:

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if byte_arrays and signature != "ay":

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raise ValueError("Byte arrays not supported for non-'ay'"

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" signature {!r}".format(signature))

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" signature {0!r}".format(signature))

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def decorator(func):

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func._dbus_is_property = True

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func._dbus_interface = dbus_interface

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"""Decorator to annotate D-Bus methods, signals or properties

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Usage:

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@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",

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"org.freedesktop.DBus.Property."

824

"EmitsChangedSignal": "false"})

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@dbus_service_property("org.example.Interface", signature="b",

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access="r")

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@dbus_annotations({{"org.freedesktop.DBus.Deprecated": "true",

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"org.freedesktop.DBus.Property."

838

"EmitsChangedSignal": "false"})

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def Property_dbus_property(self):

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return dbus.Boolean(False)

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"""

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class DBusPropertyException(dbus.exceptions.DBusException):

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"""A base class for D-Bus property-related exceptions

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"""

839

pass

851

def __unicode__(self):

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return unicode(str(self))

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class DBusPropertyAccessException(DBusPropertyException):

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"""A property's access permissions disallows an operation.

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If called like _is_dbus_thing("method") it returns a function

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suitable for use as predicate to inspect.getmembers().

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"""

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return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),

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return lambda obj: getattr(obj, "_dbus_is_{0}".format(thing),

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False)

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def _get_all_dbus_things(self, thing):

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# signatures other than "ay".

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if prop._dbus_signature != "ay":

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raise ValueError("Byte arrays not supported for non-"

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"'ay' signature {!r}"

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"'ay' signature {0!r}"

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.format(prop._dbus_signature))

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value = dbus.ByteArray(b''.join(chr(byte)

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for byte in value))

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value.variant_level+1)

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return dbus.Dictionary(properties, signature="sv")

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@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")

956

def PropertiesChanged(self, interface_name, changed_properties,

957

invalidated_properties):

958

"""Standard D-Bus PropertiesChanged() signal, see D-Bus

959

standard.

960

"""

961

pass

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@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

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out_signature="s",

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path_keyword='object_path',

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1006

(prop,

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1007

"_dbus_annotations",

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1008

{}))

1003

for name, value in annots.items():

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for name, value in annots.iteritems():

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1010

ann_tag = document.createElement(

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1011

"annotation")

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1012

ann_tag.setAttribute("name", name)

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1015

# Add interface annotation tags

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1016

for annotation, value in dict(

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1017

itertools.chain.from_iterable(

1012

annotations().items()

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annotations().iteritems()

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1019

for name, annotations in

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1020

self._get_all_dbus_things("interface")

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1021

if name == if_tag.getAttribute("name")

1016

)).items():

1022

)).iteritems():

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ann_tag = document.createElement("annotation")

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1024

ann_tag.setAttribute("name", annotation)

1019

1025

ann_tag.setAttribute("value", value)

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1081

"""

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1082

def wrapper(cls):

1077

1083

for orig_interface_name, alt_interface_name in (

1078

alt_interface_names.items()):

1084

alt_interface_names.iteritems()):

1079

1085

attr = {}

1080

1086

interface_names = set()

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1087

# Go though all attributes of the class

1198

1204

attribute.func_closure)))

1199

1205

if deprecate:

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1206

# Deprecate all alternate interfaces

1201

iname="_AlternateDBusNames_interface_annotation{}"

1207

iname="_AlternateDBusNames_interface_annotation{0}"

1202

1208

for interface_name in interface_names:

1203

1209

@dbus_interface_annotations(interface_name)

1204

1210

def func(self):

1213

1219

if interface_names:

1214

1220

# Replace the class with a new subclass of it with

1215

1221

# methods, signals, etc. as created above.

1216

cls = type(b"{}Alternate".format(cls.__name__),

1222

cls = type(b"{0}Alternate".format(cls.__name__),

1217

1223

(cls,), attr)

1218

1224

return cls

1219

1225

return wrapper

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1238

runtime_expansions = (Client.runtime_expansions

1233

1239

+ ("dbus_object_path",))

1234

1240

1235

_interface = "se.recompile.Mandos.Client"

1236

1237

1241

# dbus.service.Object doesn't use super(), so we can't either.

1238

1242

1239

1243

def __init__(self, bus = None, *args, **kwargs):

1241

1245

Client.__init__(self, *args, **kwargs)

1242

1246

# Only now, when this client is initialized, can it show up on

1243

1247

# the D-Bus

1244

client_object_name = str(self.name).translate(

1248

client_object_name = unicode(self.name).translate(

1245

1249

{ord("."): ord("_"),

1246

1250

ord("-"): ord("_")})

1247

1251

self.dbus_object_path = (dbus.ObjectPath

1251

1255

1252

1256

def notifychangeproperty(transform_func,

1253

1257

dbus_name, type_func=lambda x: x,

1254

variant_level=1, invalidate_only=False,

1255

_interface=_interface):

1258

variant_level=1):

1256

1259

""" Modify a variable so that it's a property which announces

1257

1260

its changes to DBus.

1258

1261

1263

1266

to the D-Bus. Default: no transform

1264

1267

variant_level: D-Bus variant level. Default: 1

1265

1268

"""

1266

attrname = "_{}".format(dbus_name)

1269

attrname = "_{0}".format(dbus_name)

1267

1270

def setter(self, value):

1268

1271

if hasattr(self, "dbus_object_path"):

1269

1272

if (not hasattr(self, attrname) or

1270

1273

type_func(getattr(self, attrname, None))

1271

1274

!= type_func(value)):

1272

if invalidate_only:

1273

self.PropertiesChanged(_interface,

1274

dbus.Dictionary(),

1275

dbus.Array

1276

((dbus_name,)))

1277

else:

1278

dbus_value = transform_func(type_func(value),

1279

variant_level

1280

=variant_level)

1281

self.PropertyChanged(dbus.String(dbus_name),

1282

dbus_value)

1283

self.PropertiesChanged(_interface,

1284

dbus.Dictionary({

1285

dbus.String(dbus_name):

1286

dbus_value }), dbus.Array())

1275

dbus_value = transform_func(type_func(value),

1276

variant_level

1277

=variant_level)

1278

self.PropertyChanged(dbus.String(dbus_name),

1279

dbus_value)

1287

1280

setattr(self, attrname, value)

1288

1281

1289

1282

return property(lambda self: getattr(self, attrname), setter)

1309

1302

approval_delay = notifychangeproperty(dbus.UInt64,

1310

1303

"ApprovalDelay",

1311

1304

type_func =

1312

lambda td: td.total_seconds()

1313

* 1000)

1305

timedelta_to_milliseconds)

1314

1306

approval_duration = notifychangeproperty(

1315

1307

dbus.UInt64, "ApprovalDuration",

1316

type_func = lambda td: td.total_seconds() * 1000)

1308

type_func = timedelta_to_milliseconds)

1317

1309

host = notifychangeproperty(dbus.String, "Host")

1318

1310

timeout = notifychangeproperty(dbus.UInt64, "Timeout",

1319

type_func = lambda td:

1320

td.total_seconds() * 1000)

1311

type_func =

1312

timedelta_to_milliseconds)

1321

1313

extended_timeout = notifychangeproperty(

1322

1314

dbus.UInt64, "ExtendedTimeout",

1323

type_func = lambda td: td.total_seconds() * 1000)

1315

type_func = timedelta_to_milliseconds)

1324

1316

interval = notifychangeproperty(dbus.UInt64,

1325

1317

"Interval",

1326

1318

type_func =

1327

lambda td: td.total_seconds()

1328

* 1000)

1319

timedelta_to_milliseconds)

1329

1320

checker_command = notifychangeproperty(dbus.String, "Checker")

1330

secret = notifychangeproperty(dbus.ByteArray, "Secret",

1331

invalidate_only=True)

1332

1321

1333

1322

del notifychangeproperty

1334

1323

1361

1350

*args, **kwargs)

1362

1351

1363

1352

def start_checker(self, *args, **kwargs):

1364

old_checker_pid = getattr(self.checker, "pid", None)

1353

old_checker = self.checker

1354

if self.checker is not None:

1355

old_checker_pid = self.checker.pid

1356

else:

1357

old_checker_pid = None

1365

1358

r = Client.start_checker(self, *args, **kwargs)

1366

1359

# Only if new checker process was started

1367

1360

if (self.checker is not None

1376

1369

1377

1370

def approve(self, value=True):

1378

1371

self.approved = value

1379

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

1380

* 1000), self._reset_approved)

1372

gobject.timeout_add(timedelta_to_milliseconds

1373

(self.approval_duration),

1374

self._reset_approved)

1381

1375

self.send_changedstate()

1382

1376

1383

1377

## D-Bus methods, signals & properties

1378

_interface = "se.recompile.Mandos.Client"

1384

1379

1385

1380

## Interfaces

1386

1381

1382

@dbus_interface_annotations(_interface)

1383

def _foo(self):

1384

return { "org.freedesktop.DBus.Property.EmitsChangedSignal":

1385

"false"}

1386

1387

## Signals

1388

1389

# CheckerCompleted - signal

1399

pass

1400

1401

# PropertyChanged - signal

1402

@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})

1403

1402

@dbus.service.signal(_interface, signature="sv")

1404

1403

def PropertyChanged(self, property, value):

1405

1404

"D-Bus signal"

1481

1480

access="readwrite")

1482

1481

def ApprovalDelay_dbus_property(self, value=None):

1483

1482

if value is None: # get

1484

return dbus.UInt64(self.approval_delay.total_seconds()

1485

* 1000)

1483

return dbus.UInt64(self.approval_delay_milliseconds())

1486

1484

self.approval_delay = datetime.timedelta(0, 0, 0, value)

1487

1485

1488

1486

# ApprovalDuration - property

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1488

access="readwrite")

1491

1489

def ApprovalDuration_dbus_property(self, value=None):

1492

1490

if value is None: # get

1493

return dbus.UInt64(self.approval_duration.total_seconds()

1494

* 1000)

1491

return dbus.UInt64(timedelta_to_milliseconds(

1492

self.approval_duration))

1495

1493

self.approval_duration = datetime.timedelta(0, 0, 0, value)

1496

1494

1497

1495

# Name - property

1510

1508

def Host_dbus_property(self, value=None):

1511

1509

if value is None: # get

1512

1510

return dbus.String(self.host)

1513

self.host = str(value)

1511

self.host = unicode(value)

1514

1512

1515

1513

# Created - property

1516

1514

@dbus_service_property(_interface, signature="s", access="read")

1563

1561

access="readwrite")

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1562

def Timeout_dbus_property(self, value=None):

1565

1563

if value is None: # get

1566

return dbus.UInt64(self.timeout.total_seconds() * 1000)

1564

return dbus.UInt64(self.timeout_milliseconds())

1567

1565

old_timeout = self.timeout

1568

1566

self.timeout = datetime.timedelta(0, 0, 0, value)

1569

1567

# Reschedule disabling

1580

1578

gobject.source_remove(self.disable_initiator_tag)

1581

1579

self.disable_initiator_tag = (

1582

1580

gobject.timeout_add(

1583

int((self.expires - now).total_seconds()

1584

* 1000), self.disable))

1581

timedelta_to_milliseconds(self.expires - now),

1582

self.disable))

1585

1583

1586

1584

# ExtendedTimeout - property

1587

1585

@dbus_service_property(_interface, signature="t",

1588

1586

access="readwrite")

1589

1587

def ExtendedTimeout_dbus_property(self, value=None):

1590

1588

if value is None: # get

1591

return dbus.UInt64(self.extended_timeout.total_seconds()

1592

* 1000)

1589

return dbus.UInt64(self.extended_timeout_milliseconds())

1593

1590

self.extended_timeout = datetime.timedelta(0, 0, 0, value)

1594

1591

1595

1592

# Interval - property

1597

1594

access="readwrite")

1598

1595

def Interval_dbus_property(self, value=None):

1599

1596

if value is None: # get

1600

return dbus.UInt64(self.interval.total_seconds() * 1000)

1597

return dbus.UInt64(self.interval_milliseconds())

1601

1598

self.interval = datetime.timedelta(0, 0, 0, value)

1602

1599

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

1603

1600

return

1614

1611

def Checker_dbus_property(self, value=None):

1615

1612

if value is None: # get

1616

1613

return dbus.String(self.checker_command)

1617

self.checker_command = str(value)

1614

self.checker_command = unicode(value)

1618

1615

1619

1616

# CheckerRunning - property

1620

1617

@dbus_service_property(_interface, signature="b",

1636

1633

@dbus_service_property(_interface, signature="ay",

1637

1634

access="write", byte_arrays=True)

1638

1635

def Secret_dbus_property(self, value):

1639

self.secret = bytes(value)

1636

self.secret = str(value)

1640

1637

1641

1638

del _interface

1642

1639

1676

1673

def handle(self):

1677

1674

with contextlib.closing(self.server.child_pipe) as child_pipe:

1678

1675

logger.info("TCP connection from: %s",

1679

str(self.client_address))

1676

unicode(self.client_address))

1680

1677

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

1681

1678

self.server.child_pipe.fileno())

1682

1679

1763

1760

if self.server.use_dbus:

1764

1761

# Emit D-Bus signal

1765

1762

client.NeedApproval(

1766

client.approval_delay.total_seconds()

1767

* 1000, client.approved_by_default)

1763

client.approval_delay_milliseconds(),

1764

client.approved_by_default)

1768

1765

else:

1769

1766

logger.warning("Client %s was not approved",

1770

1767

client.name)

1776

1773

#wait until timeout or approved

1777

1774

time = datetime.datetime.now()

1778

1775

client.changedstate.acquire()

1779

client.changedstate.wait(delay.total_seconds())

1776

client.changedstate.wait(

1777

float(timedelta_to_milliseconds(delay)

1778

/ 1000))

1780

1779

client.changedstate.release()

1781

1780

time2 = datetime.datetime.now()

1782

1781

if (time2 - time) >= delay:

1981

1980

try:

1982

1981

self.socket.setsockopt(socket.SOL_SOCKET,

1983

1982

SO_BINDTODEVICE,

1984

(self.interface + "\0")

1985

.encode("utf-8"))

1983

str(self.interface + '\0'))

1986

1984

except socket.error as error:

1987

1985

if error.errno == errno.EPERM:

1988

1986

logger.error("No permission to bind to"

2191

2189

token_duration = Token(re.compile(r"P"), None,

2192

2190

frozenset((token_year, token_month,

2193

2191

token_day, token_time,

2194

token_week)))

2192

token_week))),

2195

2193

# Define starting values

2196

2194

value = datetime.timedelta() # Value so far

2197

2195

found_token = None

2198

followers = frozenset((token_duration,)) # Following valid tokens

2196

followers = frozenset(token_duration,) # Following valid tokens

2199

2197

s = duration # String left to parse

2200

2198

# Loop until end token is found

2201

2199

while found_token is not token_end:

2248

2246

timevalue = datetime.timedelta(0)

2249

2247

for s in interval.split():

2250

2248

try:

2251

suffix = s[-1]

2249

suffix = unicode(s[-1])

2252

2250

value = int(s[:-1])

2253

2251

if suffix == "d":

2254

2252

delta = datetime.timedelta(value)

2261

2259

elif suffix == "w":

2262

2260

delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)

2263

2261

else:

2264

raise ValueError("Unknown suffix {!r}"

2262

raise ValueError("Unknown suffix {0!r}"

2265

2263

.format(suffix))

2266

2264

except IndexError as e:

2267

2265

raise ValueError(*(e.args))

2284

2282

# Close all standard open file descriptors

2285

2283

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

2286

2284

if not stat.S_ISCHR(os.fstat(null).st_mode):

2287

raise OSError(errno.ENODEV, "{} not a character device"

2285

raise OSError(errno.ENODEV,

2286

"{0} not a character device"

2288

2287

.format(os.devnull))

2289

2288

os.dup2(null, sys.stdin.fileno())

2290

2289

os.dup2(null, sys.stdout.fileno())

2300

2299

2301

2300

parser = argparse.ArgumentParser()

2302

2301

parser.add_argument("-v", "--version", action="version",

2303

version = "%(prog)s {}".format(version),

2302

version = "%(prog)s {0}".format(version),

2304

2303

help="show version number and exit")

2305

2304

parser.add_argument("-i", "--interface", metavar="IF",

2306

2305

help="Bind to interface IF")

2339

2338

help="Directory to save/restore state in")

2340

2339

parser.add_argument("--foreground", action="store_true",

2341

2340

help="Run in foreground", default=None)

2342

parser.add_argument("--no-zeroconf", action="store_false",

2343

dest="zeroconf", help="Do not use Zeroconf",

2344

default=None)

2345

2341

2346

2342

options = parser.parse_args()

2347

2343

2356

2352

"port": "",

2357

2353

"debug": "False",

2358

2354

"priority":

2359

"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"

2360

":+SIGN-RSA-SHA224:+SIGN-RSA-RMD160",

2355

"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:+SIGN-RSA-SHA224:+SIGN-RSA-RMD160",

2361

2356

"servicename": "Mandos",

2362

2357

"use_dbus": "True",

2363

2358

"use_ipv6": "True",

2366

2361

"socket": "",

2367

2362

"statedir": "/var/lib/mandos",

2368

2363

"foreground": "False",

2369

"zeroconf": "True",

2370

2364

}

2371

2365

2372

2366

# Parse config file for server-global settings

2399

2393

for option in ("interface", "address", "port", "debug",

2400

2394

"priority", "servicename", "configdir",

2401

2395

"use_dbus", "use_ipv6", "debuglevel", "restore",

2402

"statedir", "socket", "foreground", "zeroconf"):

2396

"statedir", "socket", "foreground"):

2403

2397

value = getattr(options, option)

2404

2398

if value is not None:

2405

2399

server_settings[option] = value

2406

2400

del options

2407

2401

# Force all strings to be unicode

2408

2402

for option in server_settings.keys():

2409

if isinstance(server_settings[option], bytes):

2410

server_settings[option] = (server_settings[option]

2411

.decode("utf-8"))

2403

if type(server_settings[option]) is str:

2404

server_settings[option] = unicode(server_settings[option])

2412

2405

# Force all boolean options to be boolean

2413

2406

for option in ("debug", "use_dbus", "use_ipv6", "restore",

2414

"foreground", "zeroconf"):

2407

"foreground"):

2415

2408

server_settings[option] = bool(server_settings[option])

2416

2409

# Debug implies foreground

2417

2410

if server_settings["debug"]:

2420

2413

2421

2414

##################################################################

2422

2415

2423

if (not server_settings["zeroconf"] and

2424

not (server_settings["port"]

2425

or server_settings["socket"] != "")):

2426

parser.error("Needs port or socket to work without"

2427

" Zeroconf")

2428

2429

2416

# For convenience

2430

2417

debug = server_settings["debug"]

2431

2418

debuglevel = server_settings["debuglevel"]

2434

2421

stored_state_path = os.path.join(server_settings["statedir"],

2435

2422

stored_state_file)

2436

2423

foreground = server_settings["foreground"]

2437

zeroconf = server_settings["zeroconf"]

2438

2424

2439

2425

if debug:

2440

2426

initlogger(debug, logging.DEBUG)

2447

2433

2448

2434

if server_settings["servicename"] != "Mandos":

2449

2435

syslogger.setFormatter(logging.Formatter

2450

('Mandos ({}) [%(process)d]:'

2436

('Mandos ({0}) [%(process)d]:'

2451

2437

' %(levelname)s: %(message)s'

2452

2438

.format(server_settings

2453

2439

["servicename"])))

2461

2447

global mandos_dbus_service

2462

2448

mandos_dbus_service = None

2463

2449

2464

socketfd = None

2465

if server_settings["socket"] != "":

2466

socketfd = server_settings["socket"]

2467

2450

tcp_server = MandosServer((server_settings["address"],

2468

2451

server_settings["port"]),

2469

2452

ClientHandler,

2473

2456

gnutls_priority=

2474

2457

server_settings["priority"],

2475

2458

use_dbus=use_dbus,

2476

socketfd=socketfd)

2459

socketfd=(server_settings["socket"]

2460

or None))

2477

2461

if not foreground:

2478

2462

pidfilename = "/run/mandos.pid"

2479

2463

if not os.path.isdir("/run/."):

2549

2533

use_dbus = False

2550

2534

server_settings["use_dbus"] = False

2551

2535

tcp_server.use_dbus = False

2552

if zeroconf:

2553

protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET

2554

service = AvahiServiceToSyslog(name =

2555

server_settings["servicename"],

2556

servicetype = "_mandos._tcp",

2557

protocol = protocol, bus = bus)

2558

if server_settings["interface"]:

2559

service.interface = (if_nametoindex

2560

(server_settings["interface"]

2561

.encode("utf-8")))

2536

protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET

2537

service = AvahiServiceToSyslog(name =

2538

server_settings["servicename"],

2539

servicetype = "_mandos._tcp",

2540

protocol = protocol, bus = bus)

2541

if server_settings["interface"]:

2542

service.interface = (if_nametoindex

2543

(str(server_settings["interface"])))

2562

2544

2563

2545

global multiprocessing_manager

2564

2546

multiprocessing_manager = multiprocessing.Manager()

2588

2570

os.remove(stored_state_path)

2589

2571

except IOError as e:

2590

2572

if e.errno == errno.ENOENT:

2591

logger.warning("Could not load persistent state: {}"

2573

logger.warning("Could not load persistent state: {0}"

2592

2574

.format(os.strerror(e.errno)))

2593

2575

else:

2594

2576

logger.critical("Could not load persistent state:",

2599

2581

"EOFError:", exc_info=e)

2600

2582

2601

2583

with PGPEngine() as pgp:

2602

for client_name, client in clients_data.items():

2584

for client_name, client in clients_data.iteritems():

2603

2585

# Skip removed clients

2604

2586

if client_name not in client_settings:

2605

2587

continue

2630

2612

if datetime.datetime.utcnow() >= client["expires"]:

2631

2613

if not client["last_checked_ok"]:

2632

2614

logger.warning(

2633

"disabling client {} - Client never "

2615

"disabling client {0} - Client never "

2634

2616

"performed a successful checker"

2635

2617

.format(client_name))

2636

2618

client["enabled"] = False

2637

2619

elif client["last_checker_status"] != 0:

2638

2620

logger.warning(

2639

"disabling client {} - Client last"

2640

" checker failed with error code {}"

2621

"disabling client {0} - Client "

2622

"last checker failed with error code {1}"

2641

2623

.format(client_name,

2642

2624

client["last_checker_status"]))

2643

2625

client["enabled"] = False

2646

2628

.utcnow()

2647

2629

+ client["timeout"])

2648

2630

logger.debug("Last checker succeeded,"

2649

" keeping {} enabled"

2631

" keeping {0} enabled"

2650

2632

.format(client_name))

2651

2633

try:

2652

2634

client["secret"] = (

2655

2637

["secret"]))

2656

2638

except PGPError:

2657

2639

# If decryption fails, we use secret from new settings

2658

logger.debug("Failed to decrypt {} old secret"

2640

logger.debug("Failed to decrypt {0} old secret"

2659

2641

.format(client_name))

2660

2642

client["secret"] = (

2661

2643

client_settings[client_name]["secret"])

2669

2651

clients_data[client_name] = client_settings[client_name]

2670

2652

2671

2653

# Create all client objects

2672

for client_name, client in clients_data.items():

2654

for client_name, client in clients_data.iteritems():

2673

2655

tcp_server.clients[client_name] = client_class(

2674

2656

name = client_name, settings = client,

2675

2657

server_settings = server_settings)

2682

2664

try:

2683

2665

with pidfile:

2684

2666

pid = os.getpid()

2685

pidfile.write("{}\n".format(pid).encode("utf-8"))

2667

pidfile.write(str(pid) + "\n".encode("utf-8"))

2686

2668

except IOError:

2687

2669

logger.error("Could not write to file %r with PID %d",

2688

2670

pidfilename, pid)

2734

2716

def GetAllClientsWithProperties(self):

2735

2717

"D-Bus method"

2736

2718

return dbus.Dictionary(

2737

{ c.dbus_object_path: c.GetAll("")

2738

for c in tcp_server.clients.itervalues() },

2719

((c.dbus_object_path, c.GetAll(""))

2720

for c in tcp_server.clients.itervalues()),

2739

2721

signature="oa{sv}")

2740

2722

2741

2723

@dbus.service.method(_interface, in_signature="o")

2758

2740

2759

2741

def cleanup():

2760

2742

"Cleanup function; run on exit"

2761

if zeroconf:

2762

service.cleanup()

2743

service.cleanup()

2763

2744

2764

2745

multiprocessing.active_children()

2765

2746

wnull.close()

2779

2760

2780

2761

# A list of attributes that can not be pickled

2781

2762

# + secret.

2782

exclude = { "bus", "changedstate", "secret",

2783

"checker", "server_settings" }

2763

exclude = set(("bus", "changedstate", "secret",

2764

"checker", "server_settings"))

2784

2765

for name, typ in (inspect.getmembers

2785

2766

(dbus.service.Object)):

2786

2767

exclude.add(name)

2809

2790

except NameError:

2810

2791

pass

2811

2792

if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):

2812

logger.warning("Could not save persistent state: {}"

2793

logger.warning("Could not save persistent state: {0}"

2813

2794

.format(os.strerror(e.errno)))

2814

2795

else:

2815

2796

logger.warning("Could not save persistent state:",

2844

2825

tcp_server.server_activate()

2845

2826

2846

2827

# Find out what port we got

2847

if zeroconf:

2848

service.port = tcp_server.socket.getsockname()[1]

2828

service.port = tcp_server.socket.getsockname()[1]

2849

2829

if use_ipv6:

2850

2830

logger.info("Now listening on address %r, port %d,"

2851

2831

" flowinfo %d, scope_id %d",

2857

2837

#service.interface = tcp_server.socket.getsockname()[3]

2858

2838

2859

2839

try:

2860

if zeroconf:

2861

# From the Avahi example code

2862

try:

2863

service.activate()

2864

except dbus.exceptions.DBusException as error:

2865

logger.critical("D-Bus Exception", exc_info=error)

2866

cleanup()

2867

sys.exit(1)

2868

# End of Avahi example code

2840

# From the Avahi example code

2841

try:

2842

service.activate()

2843

except dbus.exceptions.DBusException as error:

2844

logger.critical("D-Bus Exception", exc_info=error)

2845

cleanup()

2846

sys.exit(1)

2847

# End of Avahi example code

2869

2848

2870

2849

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

2871

2850

lambda *args, **kwargs: