2
# -*- mode: python; after-save-hook: (lambda () (let ((command (if (fboundp 'file-local-name) (file-local-name (buffer-file-name)) (or (file-remote-p (buffer-file-name) 'localname) (buffer-file-name))))) (if (= (progn (if (get-buffer "*Test*") (kill-buffer "*Test*")) (process-file-shell-command (format "%s --check" (shell-quote-argument command)) nil "*Test*")) 0) (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w))) (progn (with-current-buffer "*Test*" (compilation-mode)) (display-buffer "*Test*" '(display-buffer-in-side-window)))))); coding: utf-8 -*-
2
# -*- mode: python; coding: utf-8 -*-
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4
# Mandos server - give out binary blobs to connecting clients.
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6
# This program is partly derived from an example program for an Avahi
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7
# service publisher, downloaded from
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8
# <http://avahi.org/wiki/PythonPublishExample>. This includes the
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9
# methods "add", "remove", "server_state_changed",
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# "entry_group_state_changed", "cleanup", and "activate" in the
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# "AvahiService" class, and some lines in "main".
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13
# Everything else is
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# Copyright © 2008-2019 Teddy Hogeborn
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# Copyright © 2008-2019 Björn Påhlsson
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# This file is part of Mandos.
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# Mandos is free software: you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by
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# Copyright © 2008-2016 Teddy Hogeborn
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# Copyright © 2008-2016 Björn Påhlsson
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# This program is free software: you can redistribute it and/or modify
18
# it under the terms of the GNU General Public License as published by
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19
# the Free Software Foundation, either version 3 of the License, or
22
20
# (at your option) any later version.
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# Mandos is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
22
# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
26
24
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27
25
# GNU General Public License for more details.
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27
# You should have received a copy of the GNU General Public License
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# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
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# along with this program. If not, see
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# <http://www.gnu.org/licenses/>.
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# Contact the authors at <mandos@recompile.se>.
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34
from __future__ import (division, absolute_import, print_function,
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'--passphrase-file',
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+ self.gnupgargs,
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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ciphertext, err = proc.communicate(input=data)
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stdin = subprocess.PIPE,
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stdout = subprocess.PIPE,
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stderr = subprocess.PIPE)
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ciphertext, err = proc.communicate(input = data)
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253
if proc.returncode != 0:
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raise PGPError(err)
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return ciphertext
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def decrypt(self, data, password):
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passphrase = self.password_encode(password)
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with tempfile.NamedTemporaryFile(
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dir=self.tempdir) as passfile:
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dir = self.tempdir) as passfile:
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passfile.write(passphrase)
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proc = subprocess.Popen([self.gpg, '--decrypt',
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264
'--passphrase-file',
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266
+ self.gnupgargs,
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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decrypted_plaintext, err = proc.communicate(input=data)
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stdin = subprocess.PIPE,
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stdout = subprocess.PIPE,
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stderr = subprocess.PIPE)
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decrypted_plaintext, err = proc.communicate(input = data)
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if proc.returncode != 0:
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raise PGPError(err)
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return decrypted_plaintext
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# Pretend that we have an Avahi module
291
"""This isn't so much a class as it is a module-like namespace."""
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IF_UNSPEC = -1 # avahi-common/address.h
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PROTO_UNSPEC = -1 # avahi-common/address.h
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PROTO_INET = 0 # avahi-common/address.h
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PROTO_INET6 = 1 # avahi-common/address.h
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"""This isn't so much a class as it is a module-like namespace.
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It is instantiated once, and simulates having an Avahi module."""
279
IF_UNSPEC = -1 # avahi-common/address.h
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PROTO_UNSPEC = -1 # avahi-common/address.h
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PROTO_INET = 0 # avahi-common/address.h
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PROTO_INET6 = 1 # avahi-common/address.h
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283
DBUS_NAME = "org.freedesktop.Avahi"
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DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
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DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
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DBUS_PATH_SERVER = "/"
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def string_array_to_txt_array(t):
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def string_array_to_txt_array(self, t):
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return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
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for s in t), signature="ay")
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ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
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ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
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ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
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SERVER_INVALID = 0 # avahi-common/defs.h
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SERVER_REGISTERING = 1 # avahi-common/defs.h
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SERVER_RUNNING = 2 # avahi-common/defs.h
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SERVER_COLLISION = 3 # avahi-common/defs.h
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SERVER_FAILURE = 4 # avahi-common/defs.h
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ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
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ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
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ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
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SERVER_INVALID = 0 # avahi-common/defs.h
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SERVER_REGISTERING = 1 # avahi-common/defs.h
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SERVER_RUNNING = 2 # avahi-common/defs.h
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SERVER_COLLISION = 3 # avahi-common/defs.h
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SERVER_FAILURE = 4 # avahi-common/defs.h
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class AvahiError(Exception):
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def __init__(self, value, *args, **kwargs):
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class AvahiServiceToSyslog(AvahiService):
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def rename(self, *args, **kwargs):
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"""Add the new name to the syslog messages"""
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ret = super(AvahiServiceToSyslog, self).rename(*args, **kwargs)
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ret = AvahiService.rename(self, *args, **kwargs)
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syslogger.setFormatter(logging.Formatter(
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'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
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.format(self.name)))
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501
# Pretend that we have a GnuTLS module
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"""This isn't so much a class as it is a module-like namespace."""
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library = ctypes.util.find_library("gnutls")
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library = ctypes.util.find_library("gnutls-deb0")
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_library = ctypes.cdll.LoadLibrary(library)
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class GnuTLS(object):
503
"""This isn't so much a class as it is a module-like namespace.
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It is instantiated once, and simulates having a GnuTLS module."""
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_library = ctypes.cdll.LoadLibrary(
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ctypes.util.find_library("gnutls"))
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_need_version = b"3.3.0"
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# Need to use class name "GnuTLS" here, since this method is
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# called before the assignment to the "gnutls" global variable
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if GnuTLS.check_version(self._need_version) is None:
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raise GnuTLS.Error("Needs GnuTLS {} or later"
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.format(self._need_version))
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# Unless otherwise indicated, the constants and types below are
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# all from the gnutls/gnutls.h C header file.
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E_INTERRUPTED = -52
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CRD_CERTIFICATE = 1
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E_NO_CERTIFICATE_FOUND = -49
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KEYID_USE_SHA256 = 1 # gnutls/x509.h
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OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
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532
class session_int(ctypes.Structure):
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session_t = ctypes.POINTER(session_int)
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class certificate_credentials_st(ctypes.Structure):
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certificate_credentials_t = ctypes.POINTER(
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538
certificate_credentials_st)
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certificate_type_t = ctypes.c_int
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class datum_t(ctypes.Structure):
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_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
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('size', ctypes.c_uint)]
562
543
class openpgp_crt_int(ctypes.Structure):
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openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
565
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
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openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
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log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
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credentials_type_t = ctypes.c_int
568
549
transport_ptr_t = ctypes.c_void_p
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close_request_t = ctypes.c_int
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553
class Error(Exception):
573
def __init__(self, message=None, code=None, args=()):
554
# We need to use the class name "GnuTLS" here, since this
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# exception might be raised from within GnuTLS.__init__,
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# which is called before the assignment to the "gnutls"
557
# global variable has happened.
558
def __init__(self, message = None, code = None, args=()):
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559
# Default usage is by a message string, but if a return
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# code is passed, convert it to a string with
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# gnutls.strerror()
578
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if message is None and code is not None:
579
message = gnutls.strerror(code)
580
return super(gnutls.Error, self).__init__(
564
message = GnuTLS.strerror(code)
565
return super(GnuTLS.Error, self).__init__(
583
568
class CertificateSecurityError(Error):
572
class Credentials(object):
588
573
def __init__(self):
589
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self._c_object = gnutls.certificate_credentials_t()
590
575
gnutls.certificate_allocate_credentials(
591
576
ctypes.byref(self._c_object))
592
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self.type = gnutls.CRD_CERTIFICATE
594
579
def __del__(self):
595
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gnutls.certificate_free_credentials(self._c_object)
598
def __init__(self, socket, credentials=None):
582
class ClientSession(object):
583
def __init__(self, socket, credentials = None):
599
584
self._c_object = gnutls.session_t()
600
gnutls_flags = gnutls.CLIENT
601
if gnutls.check_version(b"3.5.6"):
602
gnutls_flags |= gnutls.NO_TICKETS
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gnutls_flags |= gnutls.ENABLE_RAWPK
605
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
585
gnutls.init(ctypes.byref(self._c_object), gnutls.CLIENT)
607
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gnutls.set_default_priority(self._c_object)
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gnutls.transport_set_ptr(self._c_object, socket.fileno())
609
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gnutls.handshake_set_private_extensions(self._c_object,
651
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return _error_code(result)
652
631
result = func(*arguments)
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# Unless otherwise indicated, the function declarations below are
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# all from the gnutls/gnutls.h C header file.
659
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priority_set_direct = _library.gnutls_priority_set_direct
660
639
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
661
640
ctypes.POINTER(ctypes.c_char_p)]
662
641
priority_set_direct.restype = _error_code
664
643
init = _library.gnutls_init
665
644
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
666
645
init.restype = _error_code
668
647
set_default_priority = _library.gnutls_set_default_priority
669
648
set_default_priority.argtypes = [session_t]
670
649
set_default_priority.restype = _error_code
672
651
record_send = _library.gnutls_record_send
673
652
record_send.argtypes = [session_t, ctypes.c_void_p,
675
654
record_send.restype = ctypes.c_ssize_t
676
655
record_send.errcheck = _retry_on_error
678
657
certificate_allocate_credentials = (
679
658
_library.gnutls_certificate_allocate_credentials)
680
659
certificate_allocate_credentials.argtypes = [
681
660
ctypes.POINTER(certificate_credentials_t)]
682
661
certificate_allocate_credentials.restype = _error_code
684
663
certificate_free_credentials = (
685
664
_library.gnutls_certificate_free_credentials)
686
certificate_free_credentials.argtypes = [
687
certificate_credentials_t]
665
certificate_free_credentials.argtypes = [certificate_credentials_t]
688
666
certificate_free_credentials.restype = None
690
668
handshake_set_private_extensions = (
691
669
_library.gnutls_handshake_set_private_extensions)
692
670
handshake_set_private_extensions.argtypes = [session_t,
694
672
handshake_set_private_extensions.restype = None
696
674
credentials_set = _library.gnutls_credentials_set
697
675
credentials_set.argtypes = [session_t, credentials_type_t,
699
677
credentials_set.restype = _error_code
701
679
strerror = _library.gnutls_strerror
702
680
strerror.argtypes = [ctypes.c_int]
703
681
strerror.restype = ctypes.c_char_p
705
683
certificate_type_get = _library.gnutls_certificate_type_get
706
684
certificate_type_get.argtypes = [session_t]
707
685
certificate_type_get.restype = _error_code
709
687
certificate_get_peers = _library.gnutls_certificate_get_peers
710
688
certificate_get_peers.argtypes = [session_t,
711
689
ctypes.POINTER(ctypes.c_uint)]
712
690
certificate_get_peers.restype = ctypes.POINTER(datum_t)
714
692
global_set_log_level = _library.gnutls_global_set_log_level
715
693
global_set_log_level.argtypes = [ctypes.c_int]
716
694
global_set_log_level.restype = None
718
696
global_set_log_function = _library.gnutls_global_set_log_function
719
697
global_set_log_function.argtypes = [log_func]
720
698
global_set_log_function.restype = None
722
700
deinit = _library.gnutls_deinit
723
701
deinit.argtypes = [session_t]
724
702
deinit.restype = None
726
704
handshake = _library.gnutls_handshake
727
705
handshake.argtypes = [session_t]
728
706
handshake.restype = _error_code
729
707
handshake.errcheck = _retry_on_error
731
709
transport_set_ptr = _library.gnutls_transport_set_ptr
732
710
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
733
711
transport_set_ptr.restype = None
735
713
bye = _library.gnutls_bye
736
714
bye.argtypes = [session_t, close_request_t]
737
715
bye.restype = _error_code
738
716
bye.errcheck = _retry_on_error
740
718
check_version = _library.gnutls_check_version
741
719
check_version.argtypes = [ctypes.c_char_p]
742
720
check_version.restype = ctypes.c_char_p
744
_need_version = b"3.3.0"
745
if check_version(_need_version) is None:
746
raise self.Error("Needs GnuTLS {} or later"
747
.format(_need_version))
749
_tls_rawpk_version = b"3.6.6"
750
has_rawpk = bool(check_version(_tls_rawpk_version))
754
class pubkey_st(ctypes.Structure):
756
pubkey_t = ctypes.POINTER(pubkey_st)
758
x509_crt_fmt_t = ctypes.c_int
760
# All the function declarations below are from gnutls/abstract.h
761
pubkey_init = _library.gnutls_pubkey_init
762
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
763
pubkey_init.restype = _error_code
765
pubkey_import = _library.gnutls_pubkey_import
766
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
768
pubkey_import.restype = _error_code
770
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
771
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
772
ctypes.POINTER(ctypes.c_ubyte),
773
ctypes.POINTER(ctypes.c_size_t)]
774
pubkey_get_key_id.restype = _error_code
776
pubkey_deinit = _library.gnutls_pubkey_deinit
777
pubkey_deinit.argtypes = [pubkey_t]
778
pubkey_deinit.restype = None
780
# All the function declarations below are from gnutls/openpgp.h
782
openpgp_crt_init = _library.gnutls_openpgp_crt_init
783
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
784
openpgp_crt_init.restype = _error_code
786
openpgp_crt_import = _library.gnutls_openpgp_crt_import
787
openpgp_crt_import.argtypes = [openpgp_crt_t,
788
ctypes.POINTER(datum_t),
790
openpgp_crt_import.restype = _error_code
792
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
793
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
794
ctypes.POINTER(ctypes.c_uint)]
795
openpgp_crt_verify_self.restype = _error_code
797
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
798
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
799
openpgp_crt_deinit.restype = None
801
openpgp_crt_get_fingerprint = (
802
_library.gnutls_openpgp_crt_get_fingerprint)
803
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
807
openpgp_crt_get_fingerprint.restype = _error_code
809
if check_version(b"3.6.4"):
810
certificate_type_get2 = _library.gnutls_certificate_type_get2
811
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
812
certificate_type_get2.restype = _error_code
722
# All the function declarations below are from gnutls/openpgp.h
724
openpgp_crt_init = _library.gnutls_openpgp_crt_init
725
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
726
openpgp_crt_init.restype = _error_code
728
openpgp_crt_import = _library.gnutls_openpgp_crt_import
729
openpgp_crt_import.argtypes = [openpgp_crt_t,
730
ctypes.POINTER(datum_t),
732
openpgp_crt_import.restype = _error_code
734
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
735
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
736
ctypes.POINTER(ctypes.c_uint)]
737
openpgp_crt_verify_self.restype = _error_code
739
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
740
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
741
openpgp_crt_deinit.restype = None
743
openpgp_crt_get_fingerprint = (
744
_library.gnutls_openpgp_crt_get_fingerprint)
745
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
749
openpgp_crt_get_fingerprint.restype = _error_code
814
751
# Remove non-public functions
815
752
del _error_code, _retry_on_error
753
# Create the global "gnutls" object, simulating a module
818
756
def call_pipe(connection, # : multiprocessing.Connection
819
757
func, *args, **kwargs):
820
758
"""This function is meant to be called by multiprocessing.Process
822
760
This function runs func(*args, **kwargs), and writes the resulting
823
761
return value on the provided multiprocessing.Connection.
825
763
connection.send(func(*args, **kwargs))
826
764
connection.close()
766
class Client(object):
830
767
"""A representation of a client host served by this server.
833
770
approved: bool(); 'None' if not yet approved/disapproved
834
771
approval_delay: datetime.timedelta(); Time to wait for approval
835
772
approval_duration: datetime.timedelta(); Duration of one approval
836
checker: multiprocessing.Process(); a running checker process used
837
to see if the client lives. 'None' if no process is
773
checker: subprocess.Popen(); a running checker process used
774
to see if the client lives.
775
'None' if no process is running.
839
776
checker_callback_tag: a GLib event source tag, or None
840
777
checker_command: string; External command which is run to check
841
778
if client lives. %() expansions are done at
1517
1447
exc_info=error)
1518
1448
return xmlstring
1522
1451
dbus.OBJECT_MANAGER_IFACE
1523
1452
except AttributeError:
1524
1453
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1527
1455
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1528
1456
"""A D-Bus object with an ObjectManager.
1530
1458
Classes inheriting from this exposes the standard
1531
1459
GetManagedObjects call and the InterfacesAdded and
1532
1460
InterfacesRemoved signals on the standard
1533
1461
"org.freedesktop.DBus.ObjectManager" interface.
1535
1463
Note: No signals are sent automatically; they must be sent
1538
1466
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1539
out_signature="a{oa{sa{sv}}}")
1467
out_signature = "a{oa{sa{sv}}}")
1540
1468
def GetManagedObjects(self):
1541
1469
"""This function must be overridden"""
1542
1470
raise NotImplementedError()
1544
1472
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1545
signature="oa{sa{sv}}")
1473
signature = "oa{sa{sv}}")
1546
1474
def InterfacesAdded(self, object_path, interfaces_and_properties):
1549
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1477
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature = "oas")
1550
1478
def InterfacesRemoved(self, object_path, interfaces):
1553
1481
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1555
path_keyword='object_path',
1556
connection_keyword='connection')
1482
out_signature = "s",
1483
path_keyword = 'object_path',
1484
connection_keyword = 'connection')
1557
1485
def Introspect(self, object_path, connection):
1558
1486
"""Overloading of standard D-Bus method.
1560
1488
Override return argument name of GetManagedObjects to be
1561
1489
"objpath_interfaces_and_properties"
2504
class MultiprocessingMixIn:
2365
class MultiprocessingMixIn(object):
2505
2366
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2507
2368
def sub_process_main(self, request, address):
2509
2370
self.finish_request(request, address)
2510
2371
except Exception:
2511
2372
self.handle_error(request, address)
2512
2373
self.close_request(request)
2514
2375
def process_request(self, request, address):
2515
2376
"""Start a new process to process the request."""
2516
proc = multiprocessing.Process(target=self.sub_process_main,
2517
args=(request, address))
2377
proc = multiprocessing.Process(target = self.sub_process_main,
2378
args = (request, address))
2522
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
2383
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2523
2384
""" adds a pipe to the MixIn """
2525
2386
def process_request(self, request, client_address):
2526
2387
"""Overrides and wraps the original process_request().
2528
2389
This function creates a new pipe in self.pipe
2530
2391
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2532
2393
proc = MultiprocessingMixIn.process_request(self, request,
2533
2394
client_address)
2534
2395
self.child_pipe.close()
2535
2396
self.add_pipe(parent_pipe, proc)
2537
2398
def add_pipe(self, parent_pipe, proc):
2538
2399
"""Dummy function; override as necessary"""
2539
2400
raise NotImplementedError()
2542
2403
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2543
socketserver.TCPServer):
2404
socketserver.TCPServer, object):
2544
2405
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2547
2408
enabled: Boolean; whether this server is activated yet
2548
2409
interface: None or a network interface name (string)
2549
2410
use_ipv6: Boolean; to use IPv6 or not
2552
2413
def __init__(self, server_address, RequestHandlerClass,
2553
2414
interface=None,
2665
2523
self.gnutls_priority = gnutls_priority
2666
2524
IPv6_TCPServer.__init__(self, server_address,
2667
2525
RequestHandlerClass,
2668
interface=interface,
2526
interface = interface,
2527
use_ipv6 = use_ipv6,
2528
socketfd = socketfd)
2672
2530
def server_activate(self):
2673
2531
if self.enabled:
2674
2532
return socketserver.TCPServer.server_activate(self)
2676
2534
def enable(self):
2677
2535
self.enabled = True
2679
2537
def add_pipe(self, parent_pipe, proc):
2680
2538
# Call "handle_ipc" for both data and EOF events
2681
2539
GLib.io_add_watch(
2682
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2683
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2540
parent_pipe.fileno(),
2541
GLib.IO_IN | GLib.IO_HUP,
2684
2542
functools.partial(self.handle_ipc,
2685
parent_pipe=parent_pipe,
2543
parent_pipe = parent_pipe,
2688
2546
def handle_ipc(self, source, condition,
2689
2547
parent_pipe=None,
2691
2549
client_object=None):
2692
2550
# error, or the other end of multiprocessing.Pipe has closed
2693
2551
if condition & (GLib.IO_ERR | GLib.IO_HUP):
2694
2552
# Wait for other process to exit
2698
2556
# Read a request from the child
2699
2557
request = parent_pipe.recv()
2700
2558
command = request[0]
2702
2560
if command == 'init':
2703
key_id = request[1].decode("ascii")
2704
fpr = request[2].decode("ascii")
2705
address = request[3]
2562
address = request[2]
2707
2564
for c in self.clients.values():
2708
if key_id == "E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855":
2710
if key_id and c.key_id == key_id:
2713
if fpr and c.fingerprint == fpr:
2565
if c.fingerprint == fpr:
2717
logger.info("Client not found for key ID: %s, address"
2718
": %s", key_id or fpr, address)
2569
logger.info("Client not found for fingerprint: %s, ad"
2570
"dress: %s", fpr, address)
2719
2571
if self.use_dbus:
2720
2572
# Emit D-Bus signal
2721
mandos_dbus_service.ClientNotFound(key_id or fpr,
2573
mandos_dbus_service.ClientNotFound(fpr,
2723
2575
parent_pipe.send(False)
2726
2578
GLib.io_add_watch(
2727
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2728
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2579
parent_pipe.fileno(),
2580
GLib.IO_IN | GLib.IO_HUP,
2729
2581
functools.partial(self.handle_ipc,
2730
parent_pipe=parent_pipe,
2732
client_object=client))
2582
parent_pipe = parent_pipe,
2584
client_object = client))
2733
2585
parent_pipe.send(True)
2734
2586
# remove the old hook in favor of the new above hook on
2752
2604
parent_pipe.send((
2753
2605
'data', client_object.__getattribute__(attrname)))
2755
2607
if command == 'setattr':
2756
2608
attrname = request[1]
2757
2609
value = request[2]
2758
2610
setattr(client_object, attrname, value)
2763
2615
def rfc3339_duration_to_delta(duration):
2764
2616
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2766
>>> rfc3339_duration_to_delta("P7D") == datetime.timedelta(7)
2768
>>> rfc3339_duration_to_delta("PT60S") == datetime.timedelta(0, 60)
2770
>>> rfc3339_duration_to_delta("PT60M") == datetime.timedelta(0, 3600)
2772
>>> rfc3339_duration_to_delta("PT24H") == datetime.timedelta(1)
2774
>>> rfc3339_duration_to_delta("P1W") == datetime.timedelta(7)
2776
>>> rfc3339_duration_to_delta("PT5M30S") == datetime.timedelta(0, 330)
2778
>>> rfc3339_duration_to_delta("P1DT3M20S") == datetime.timedelta(1, 200)
2618
>>> rfc3339_duration_to_delta("P7D")
2619
datetime.timedelta(7)
2620
>>> rfc3339_duration_to_delta("PT60S")
2621
datetime.timedelta(0, 60)
2622
>>> rfc3339_duration_to_delta("PT60M")
2623
datetime.timedelta(0, 3600)
2624
>>> rfc3339_duration_to_delta("PT24H")
2625
datetime.timedelta(1)
2626
>>> rfc3339_duration_to_delta("P1W")
2627
datetime.timedelta(7)
2628
>>> rfc3339_duration_to_delta("PT5M30S")
2629
datetime.timedelta(0, 330)
2630
>>> rfc3339_duration_to_delta("P1DT3M20S")
2631
datetime.timedelta(1, 200)
2782
2634
# Parsing an RFC 3339 duration with regular expressions is not
2783
2635
# possible - there would have to be multiple places for the same
2784
2636
# values, like seconds. The current code, while more esoteric, is
2785
2637
# cleaner without depending on a parsing library. If Python had a
2786
2638
# built-in library for parsing we would use it, but we'd like to
2787
2639
# avoid excessive use of external libraries.
2789
2641
# New type for defining tokens, syntax, and semantics all-in-one
2790
2642
Token = collections.namedtuple("Token", (
2791
2643
"regexp", # To match token; if "value" is not None, must have
2978
2827
parser.add_argument("--no-zeroconf", action="store_false",
2979
2828
dest="zeroconf", help="Do not use Zeroconf",
2982
2831
options = parser.parse_args()
2835
fail_count, test_count = doctest.testmod()
2836
sys.exit(os.EX_OK if fail_count == 0 else 1)
2984
2838
# Default values for config file for server-global settings
2985
if gnutls.has_rawpk:
2986
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
2987
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
2989
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2990
":+SIGN-DSA-SHA256")
2991
server_defaults = {"interface": "",
2995
"priority": priority,
2996
"servicename": "Mandos",
3002
"statedir": "/var/lib/mandos",
3003
"foreground": "False",
2839
server_defaults = { "interface": "",
2844
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2845
":+SIGN-DSA-SHA256",
2846
"servicename": "Mandos",
2852
"statedir": "/var/lib/mandos",
2853
"foreground": "False",
3008
2857
# Parse config file for server-global settings
3009
server_config = configparser.ConfigParser(server_defaults)
2858
server_config = configparser.SafeConfigParser(server_defaults)
3010
2859
del server_defaults
3011
2860
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3012
# Convert the ConfigParser object to a dict
2861
# Convert the SafeConfigParser object to a dict
3013
2862
server_settings = server_config.defaults()
3014
2863
# Use the appropriate methods on the non-string config options
3015
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3016
"foreground", "zeroconf"):
2864
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
3017
2865
server_settings[option] = server_config.getboolean("DEFAULT",
3019
2867
if server_settings["port"]:
3192
3040
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3193
3041
service = AvahiServiceToSyslog(
3194
name=server_settings["servicename"],
3195
servicetype="_mandos._tcp",
3042
name = server_settings["servicename"],
3043
servicetype = "_mandos._tcp",
3044
protocol = protocol,
3198
3046
if server_settings["interface"]:
3199
3047
service.interface = if_nametoindex(
3200
3048
server_settings["interface"].encode("utf-8"))
3202
3050
global multiprocessing_manager
3203
3051
multiprocessing_manager = multiprocessing.Manager()
3205
3053
client_class = Client
3207
client_class = functools.partial(ClientDBus, bus=bus)
3055
client_class = functools.partial(ClientDBus, bus = bus)
3209
3057
client_settings = Client.config_parser(client_config)
3210
3058
old_client_settings = {}
3211
3059
clients_data = {}
3213
3061
# This is used to redirect stdout and stderr for checker processes
3215
wnull = open(os.devnull, "w") # A writable /dev/null
3063
wnull = open(os.devnull, "w") # A writable /dev/null
3216
3064
# Only used if server is running in foreground but not in debug
3218
3066
if debug or not foreground:
3221
3069
# Get client data and settings from last running state.
3222
3070
if server_settings["restore"]:
3224
3072
with open(stored_state_path, "rb") as stored_state:
3225
if sys.version_info.major == 2:
3073
if sys.version_info.major == 2:
3226
3074
clients_data, old_client_settings = pickle.load(
3229
3077
bytes_clients_data, bytes_old_client_settings = (
3230
pickle.load(stored_state, encoding="bytes"))
3231
# Fix bytes to strings
3078
pickle.load(stored_state, encoding = "bytes"))
3079
### Fix bytes to strings
3234
clients_data = {(key.decode("utf-8")
3235
if isinstance(key, bytes)
3238
bytes_clients_data.items()}
3082
clients_data = { (key.decode("utf-8")
3083
if isinstance(key, bytes)
3086
bytes_clients_data.items() }
3239
3087
del bytes_clients_data
3240
3088
for key in clients_data:
3241
value = {(k.decode("utf-8")
3242
if isinstance(k, bytes) else k): v
3244
clients_data[key].items()}
3089
value = { (k.decode("utf-8")
3090
if isinstance(k, bytes) else k): v
3092
clients_data[key].items() }
3245
3093
clients_data[key] = value
3246
3094
# .client_structure
3247
3095
value["client_structure"] = [
3248
3096
(s.decode("utf-8")
3249
3097
if isinstance(s, bytes)
3250
3098
else s) for s in
3251
value["client_structure"]]
3252
# .name, .host, and .checker_command
3253
for k in ("name", "host", "checker_command"):
3099
value["client_structure"] ]
3101
for k in ("name", "host"):
3254
3102
if isinstance(value[k], bytes):
3255
3103
value[k] = value[k].decode("utf-8")
3256
if "key_id" not in value:
3257
value["key_id"] = ""
3258
elif "fingerprint" not in value:
3259
value["fingerprint"] = ""
3260
# old_client_settings
3104
## old_client_settings
3262
3106
old_client_settings = {
3263
3107
(key.decode("utf-8")
3264
3108
if isinstance(key, bytes)
3265
3109
else key): value
3266
3110
for key, value in
3267
bytes_old_client_settings.items()}
3111
bytes_old_client_settings.items() }
3268
3112
del bytes_old_client_settings
3269
# .host and .checker_command
3270
3114
for value in old_client_settings.values():
3271
for attribute in ("host", "checker_command"):
3272
if isinstance(value[attribute], bytes):
3273
value[attribute] = (value[attribute]
3115
if isinstance(value["host"], bytes):
3116
value["host"] = (value["host"]
3275
3118
os.remove(stored_state_path)
3276
3119
except IOError as e:
3277
3120
if e.errno == errno.ENOENT: