/mandos/trunk : revision 742

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#!/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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except ImportError:

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SO_BINDTODEVICE = None

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version = "1.6.5"

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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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stored_state_file = "clients.pickle"

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logger = logging.getLogger()

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

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interface_index = struct.unpack("I", 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 = str("/dev/log")))

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

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**kwargs)

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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):

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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("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 = unicode(self.server

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.GetAlternativeServiceName(self.name))

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

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self.name)

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self.remove()

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if 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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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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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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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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unicode(error))

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

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str(error))

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raise AvahiGroupError("State changed: {!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):

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

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

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ret = AvahiService.rename(self)

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

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syslogger.setFormatter(logging.Formatter

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

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('Mandos ({}) [%(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 {0}"

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

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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.iteritems():

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for setting, value in settings.items():

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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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(self.interval_milliseconds(),

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(int(self.interval

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.total_seconds() * 1000),

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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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(self.timeout_milliseconds(),

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self.disable))

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(int(self.timeout

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.total_seconds() * 1000),

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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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(timedelta_to_milliseconds

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(timeout), self.disable))

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(int(timeout.total_seconds()

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* 1000), 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 = 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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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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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 {0!r}".format(signature))

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" signature {!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."

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"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."

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"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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838

"""

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def __unicode__(self):

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return unicode(str(self))

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pass

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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_{0}".format(thing),

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return lambda obj: getattr(obj, "_dbus_is_{}".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 {0!r}"

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"'ay' signature {!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")

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def PropertiesChanged(self, interface_name, changed_properties,

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invalidated_properties):

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

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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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(prop,

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"_dbus_annotations",

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{}))

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for name, value in annots.iteritems():

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for name, value in annots.items():

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ann_tag = document.createElement(

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1005

"annotation")

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ann_tag.setAttribute("name", name)

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# Add interface annotation tags

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for annotation, value in dict(

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itertools.chain.from_iterable(

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annotations().iteritems()

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annotations().items()

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for name, annotations in

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self._get_all_dbus_things("interface")

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

1024

)).iteritems():

1016

)).items():

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ann_tag = document.createElement("annotation")

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ann_tag.setAttribute("name", annotation)

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ann_tag.setAttribute("value", value)

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"""

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def wrapper(cls):

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for orig_interface_name, alt_interface_name in (

1086

alt_interface_names.iteritems()):

1078

alt_interface_names.items()):

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attr = {}

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interface_names = set()

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# Go though all attributes of the class

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attribute.func_closure)))

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1199

if deprecate:

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# Deprecate all alternate interfaces

1209

iname="_AlternateDBusNames_interface_annotation{0}"

1201

iname="_AlternateDBusNames_interface_annotation{}"

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1202

for interface_name in interface_names:

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1203

@dbus_interface_annotations(interface_name)

1212

1204

def func(self):

1221

1213

if interface_names:

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1214

# Replace the class with a new subclass of it with

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1215

# methods, signals, etc. as created above.

1224

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

1216

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

1225

1217

(cls,), attr)

1226

1218

return cls

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1219

return wrapper

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runtime_expansions = (Client.runtime_expansions

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1233

+ ("dbus_object_path",))

1242

1234

1235

_interface = "se.recompile.Mandos.Client"

1236

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1237

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

1244

1238

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1239

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

1247

1241

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

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1242

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

1249

1243

# the D-Bus

1250

client_object_name = unicode(self.name).translate(

1244

client_object_name = str(self.name).translate(

1251

1245

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

1252

1246

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

1253

1247

self.dbus_object_path = (dbus.ObjectPath

1257

1251

1258

1252

def notifychangeproperty(transform_func,

1259

1253

dbus_name, type_func=lambda x: x,

1260

variant_level=1):

1254

variant_level=1, invalidate_only=False,

1255

_interface=_interface):

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1256

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

1262

1257

its changes to DBus.

1263

1258

1268

1263

to the D-Bus. Default: no transform

1269

1264

variant_level: D-Bus variant level. Default: 1

1270

1265

"""

1271

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

1266

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

1272

1267

def setter(self, value):

1273

1268

if hasattr(self, "dbus_object_path"):

1274

1269

if (not hasattr(self, attrname) or

1275

1270

type_func(getattr(self, attrname, None))

1276

1271

!= type_func(value)):

1277

dbus_value = transform_func(type_func(value),

1278

variant_level

1279

=variant_level)

1280

self.PropertyChanged(dbus.String(dbus_name),

1281

dbus_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())

1282

1287

setattr(self, attrname, value)

1283

1288

1284

1289

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

1304

1309

approval_delay = notifychangeproperty(dbus.UInt64,

1305

1310

"ApprovalDelay",

1306

1311

type_func =

1307

timedelta_to_milliseconds)

1312

lambda td: td.total_seconds()

1313

* 1000)

1308

1314

approval_duration = notifychangeproperty(

1309

1315

dbus.UInt64, "ApprovalDuration",

1310

type_func = timedelta_to_milliseconds)

1316

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

1311

1317

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

1312

1318

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

1313

type_func =

1314

timedelta_to_milliseconds)

1319

type_func = lambda td:

1320

td.total_seconds() * 1000)

1315

1321

extended_timeout = notifychangeproperty(

1316

1322

dbus.UInt64, "ExtendedTimeout",

1317

type_func = timedelta_to_milliseconds)

1323

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

1318

1324

interval = notifychangeproperty(dbus.UInt64,

1319

1325

"Interval",

1320

1326

type_func =

1321

timedelta_to_milliseconds)

1327

lambda td: td.total_seconds()

1328

* 1000)

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1329

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

1330

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

1331

invalidate_only=True)

1323

1332

1324

1333

del notifychangeproperty

1325

1334

1367

1376

1368

1377

def approve(self, value=True):

1369

1378

self.approved = value

1370

gobject.timeout_add(timedelta_to_milliseconds

1371

(self.approval_duration),

1372

self._reset_approved)

1379

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

1380

* 1000), self._reset_approved)

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self.send_changedstate()

1374

1382

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1383

## D-Bus methods, signals & properties

1376

_interface = "se.recompile.Mandos.Client"

1377

1384

1378

1385

## Interfaces

1379

1386

1380

@dbus_interface_annotations(_interface)

1381

def _foo(self):

1382

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

1383

"false"}

1384

1385

1387

## Signals

1386

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1389

# CheckerCompleted - signal

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pass

1398

1400

1399

1401

# PropertyChanged - signal

1402

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

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1403

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

1401

1404

def PropertyChanged(self, property, value):

1402

1405

"D-Bus signal"

1478

1481

access="readwrite")

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1482

def ApprovalDelay_dbus_property(self, value=None):

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1483

if value is None: # get

1481

return dbus.UInt64(self.approval_delay_milliseconds())

1484

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

1485

* 1000)

1482

1486

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

1483

1487

1484

1488

# ApprovalDuration - property

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1490

access="readwrite")

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1491

def ApprovalDuration_dbus_property(self, value=None):

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1492

if value is None: # get

1489

return dbus.UInt64(timedelta_to_milliseconds(

1490

self.approval_duration))

1493

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

1494

* 1000)

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1495

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

1492

1496

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1497

# Name - property

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1510

def Host_dbus_property(self, value=None):

1507

1511

if value is None: # get

1508

1512

return dbus.String(self.host)

1509

self.host = unicode(value)

1513

self.host = str(value)

1510

1514

1511

1515

# Created - property

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1516

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

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1563

access="readwrite")

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1564

def Timeout_dbus_property(self, value=None):

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1565

if value is None: # get

1562

return dbus.UInt64(self.timeout_milliseconds())

1566

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

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1567

old_timeout = self.timeout

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1568

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

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1569

# Reschedule disabling

1576

1580

gobject.source_remove(self.disable_initiator_tag)

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1581

self.disable_initiator_tag = (

1578

1582

gobject.timeout_add(

1579

timedelta_to_milliseconds(self.expires - now),

1580

self.disable))

1583

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

1584

* 1000), self.disable))

1581

1585

1582

1586

# ExtendedTimeout - property

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1587

@dbus_service_property(_interface, signature="t",

1584

1588

access="readwrite")

1585

1589

def ExtendedTimeout_dbus_property(self, value=None):

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1590

if value is None: # get

1587

return dbus.UInt64(self.extended_timeout_milliseconds())

1591

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

1592

* 1000)

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1593

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

1589

1594

1590

1595

# Interval - property

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1597

access="readwrite")

1593

1598

def Interval_dbus_property(self, value=None):

1594

1599

if value is None: # get

1595

return dbus.UInt64(self.interval_milliseconds())

1600

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

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1601

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

1597

1602

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

1598

1603

return

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1614

def Checker_dbus_property(self, value=None):

1610

1615

if value is None: # get

1611

1616

return dbus.String(self.checker_command)

1612

self.checker_command = unicode(value)

1617

self.checker_command = str(value)

1613

1618

1614

1619

# CheckerRunning - property

1615

1620

@dbus_service_property(_interface, signature="b",

1631

1636

@dbus_service_property(_interface, signature="ay",

1632

1637

access="write", byte_arrays=True)

1633

1638

def Secret_dbus_property(self, value):

1634

self.secret = str(value)

1639

self.secret = bytes(value)

1635

1640

1636

1641

del _interface

1637

1642

1671

1676

def handle(self):

1672

1677

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

1673

1678

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

1674

unicode(self.client_address))

1679

str(self.client_address))

1675

1680

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

1676

1681

self.server.child_pipe.fileno())

1677

1682

1758

1763

if self.server.use_dbus:

1759

1764

# Emit D-Bus signal

1760

1765

client.NeedApproval(

1761

client.approval_delay_milliseconds(),

1762

client.approved_by_default)

1766

client.approval_delay.total_seconds()

1767

* 1000, client.approved_by_default)

1763

1768

else:

1764

1769

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

1765

1770

client.name)

1771

1776

#wait until timeout or approved

1772

1777

time = datetime.datetime.now()

1773

1778

client.changedstate.acquire()

1774

client.changedstate.wait(

1775

float(timedelta_to_milliseconds(delay)

1776

/ 1000))

1779

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

1777

1780

client.changedstate.release()

1778

1781

time2 = datetime.datetime.now()

1779

1782

if (time2 - time) >= delay:

1978

1981

try:

1979

1982

self.socket.setsockopt(socket.SOL_SOCKET,

1980

1983

SO_BINDTODEVICE,

1981

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

1984

(self.interface + "\0")

1985

.encode("utf-8"))

1982

1986

except socket.error as error:

1983

1987

if error.errno == errno.EPERM:

1984

1988

logger.error("No permission to bind to"

2187

2191

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

2188

2192

frozenset((token_year, token_month,

2189

2193

token_day, token_time,

2190

token_week))),

2194

token_week)))

2191

2195

# Define starting values

2192

2196

value = datetime.timedelta() # Value so far

2193

2197

found_token = None

2194

followers = frozenset(token_duration,) # Following valid tokens

2198

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

2195

2199

s = duration # String left to parse

2196

2200

# Loop until end token is found

2197

2201

while found_token is not token_end:

2244

2248

timevalue = datetime.timedelta(0)

2245

2249

for s in interval.split():

2246

2250

try:

2247

suffix = unicode(s[-1])

2251

suffix = s[-1]

2248

2252

value = int(s[:-1])

2249

2253

if suffix == "d":

2250

2254

delta = datetime.timedelta(value)

2257

2261

elif suffix == "w":

2258

2262

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

2259

2263

else:

2260

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

2264

raise ValueError("Unknown suffix {!r}"

2261

2265

.format(suffix))

2262

2266

except IndexError as e:

2263

2267

raise ValueError(*(e.args))

2280

2284

# Close all standard open file descriptors

2281

2285

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

2282

2286

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

2283

raise OSError(errno.ENODEV,

2284

"{0} not a character device"

2287

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

2285

2288

.format(os.devnull))

2286

2289

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

2287

2290

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

2297

2300

2298

2301

parser = argparse.ArgumentParser()

2299

2302

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

2300

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

2303

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

2301

2304

help="show version number and exit")

2302

2305

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

2303

2306

help="Bind to interface IF")

2336

2339

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

2337

2340

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

2338

2341

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)

2339

2345

2340

2346

options = parser.parse_args()

2341

2347

2350

2356

"port": "",

2351

2357

"debug": "False",

2352

2358

"priority":

2353

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

2359

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

2360

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

2354

2361

"servicename": "Mandos",

2355

2362

"use_dbus": "True",

2356

2363

"use_ipv6": "True",

2359

2366

"socket": "",

2360

2367

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

2361

2368

"foreground": "False",

2369

"zeroconf": "True",

2362

2370

}

2363

2371

2364

2372

# Parse config file for server-global settings

2391

2399

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

2392

2400

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

2393

2401

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

2394

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

2402

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

2395

2403

value = getattr(options, option)

2396

2404

if value is not None:

2397

2405

server_settings[option] = value

2398

2406

del options

2399

2407

# Force all strings to be unicode

2400

2408

for option in server_settings.keys():

2401

if type(server_settings[option]) is str:

2402

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

2409

if isinstance(server_settings[option], bytes):

2410

server_settings[option] = (server_settings[option]

2411

.decode("utf-8"))

2403

2412

# Force all boolean options to be boolean

2404

2413

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

2405

"foreground"):

2414

"foreground", "zeroconf"):

2406

2415

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

2407

2416

# Debug implies foreground

2408

2417

if server_settings["debug"]:

2411

2420

2412

2421

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

2413

2422

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

2414

2429

# For convenience

2415

2430

debug = server_settings["debug"]

2416

2431

debuglevel = server_settings["debuglevel"]

2419

2434

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

2420

2435

stored_state_file)

2421

2436

foreground = server_settings["foreground"]

2437

zeroconf = server_settings["zeroconf"]

2422

2438

2423

2439

if debug:

2424

2440

initlogger(debug, logging.DEBUG)

2431

2447

2432

2448

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

2433

2449

syslogger.setFormatter(logging.Formatter

2434

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

2450

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

2435

2451

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

2436

2452

.format(server_settings

2437

2453

["servicename"])))

2445

2461

global mandos_dbus_service

2446

2462

mandos_dbus_service = None

2447

2463

2464

socketfd = None

2465

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

2466

socketfd = server_settings["socket"]

2448

2467

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

2449

2468

server_settings["port"]),

2450

2469

ClientHandler,

2454

2473

gnutls_priority=

2455

2474

server_settings["priority"],

2456

2475

use_dbus=use_dbus,

2457

socketfd=(server_settings["socket"]

2458

or None))

2476

socketfd=socketfd)

2459

2477

if not foreground:

2460

2478

pidfilename = "/run/mandos.pid"

2461

2479

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

2531

2549

use_dbus = False

2532

2550

server_settings["use_dbus"] = False

2533

2551

tcp_server.use_dbus = False

2534

protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET

2535

service = AvahiServiceToSyslog(name =

2536

server_settings["servicename"],

2537

servicetype = "_mandos._tcp",

2538

protocol = protocol, bus = bus)

2539

if server_settings["interface"]:

2540

service.interface = (if_nametoindex

2541

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

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")))

2542

2562

2543

2563

global multiprocessing_manager

2544

2564

multiprocessing_manager = multiprocessing.Manager()

2568

2588

os.remove(stored_state_path)

2569

2589

except IOError as e:

2570

2590

if e.errno == errno.ENOENT:

2571

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

2591

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

2572

2592

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

2573

2593

else:

2574

2594

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

2579

2599

"EOFError:", exc_info=e)

2580

2600

2581

2601

with PGPEngine() as pgp:

2582

for client_name, client in clients_data.iteritems():

2602

for client_name, client in clients_data.items():

2583

2603

# Skip removed clients

2584

2604

if client_name not in client_settings:

2585

2605

continue

2610

2630

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

2611

2631

if not client["last_checked_ok"]:

2612

2632

logger.warning(

2613

"disabling client {0} - Client never "

2633

"disabling client {} - Client never "

2614

2634

"performed a successful checker"

2615

2635

.format(client_name))

2616

2636

client["enabled"] = False

2617

2637

elif client["last_checker_status"] != 0:

2618

2638

logger.warning(

2619

"disabling client {0} - Client "

2620

"last checker failed with error code {1}"

2639

"disabling client {} - Client last"

2640

" checker failed with error code {}"

2621

2641

.format(client_name,

2622

2642

client["last_checker_status"]))

2623

2643

client["enabled"] = False

2626

2646

.utcnow()

2627

2647

+ client["timeout"])

2628

2648

logger.debug("Last checker succeeded,"

2629

" keeping {0} enabled"

2649

" keeping {} enabled"

2630

2650

.format(client_name))

2631

2651

try:

2632

2652

client["secret"] = (

2635

2655

["secret"]))

2636

2656

except PGPError:

2637

2657

# If decryption fails, we use secret from new settings

2638

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

2658

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

2639

2659

.format(client_name))

2640

2660

client["secret"] = (

2641

2661

client_settings[client_name]["secret"])

2649

2669

clients_data[client_name] = client_settings[client_name]

2650

2670

2651

2671

# Create all client objects

2652

for client_name, client in clients_data.iteritems():

2672

for client_name, client in clients_data.items():

2653

2673

tcp_server.clients[client_name] = client_class(

2654

2674

name = client_name, settings = client,

2655

2675

server_settings = server_settings)

2662

2682

try:

2663

2683

with pidfile:

2664

2684

pid = os.getpid()

2665

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

2685

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

2666

2686

except IOError:

2667

2687

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

2668

2688

pidfilename, pid)

2714

2734

def GetAllClientsWithProperties(self):

2715

2735

"D-Bus method"

2716

2736

return dbus.Dictionary(

2717

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

2718

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

2737

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

2738

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

2719

2739

signature="oa{sv}")

2720

2740

2721

2741

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

2738

2758

2739

2759

def cleanup():

2740

2760

"Cleanup function; run on exit"

2741

service.cleanup()

2761

if zeroconf:

2762

service.cleanup()

2742

2763

2743

2764

multiprocessing.active_children()

2744

2765

wnull.close()

2758

2779

2759

2780

# A list of attributes that can not be pickled

2760

2781

# + secret.

2761

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

2762

"checker", "server_settings"))

2782

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

2783

"checker", "server_settings" }

2763

2784

for name, typ in (inspect.getmembers

2764

2785

(dbus.service.Object)):

2765

2786

exclude.add(name)

2788

2809

except NameError:

2789

2810

pass

2790

2811

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

2791

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

2812

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

2792

2813

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

2793

2814

else:

2794

2815

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

2823

2844

tcp_server.server_activate()

2824

2845

2825

2846

# Find out what port we got

2826

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

2847

if zeroconf:

2848

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

2827

2849

if use_ipv6:

2828

2850

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

2829

2851

" flowinfo %d, scope_id %d",

2835

2857

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

2836

2858

2837

2859

try:

2838

# From the Avahi example code

2839

try:

2840

service.activate()

2841

except dbus.exceptions.DBusException as error:

2842

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

2843

cleanup()

2844

sys.exit(1)

2845

# End of Avahi example code

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

2846

2869

2847

2870

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

2848

2871

lambda *args, **kwargs: