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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# <http://avahi.org/wiki/PythonPublishExample>. This includes the
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# methods "add", "remove", "server_state_changed",
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# "entry_group_state_changed", "cleanup", and "activate" in the
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# "AvahiService" class, and some lines in "main".
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13
# Everything else is
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# Copyright © 2008-2020 Teddy Hogeborn
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# Copyright © 2008-2020 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
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# 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
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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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'--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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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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275
# Pretend that we have an Avahi module
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"""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."""
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IF_UNSPEC = -1 # avahi-common/address.h
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PROTO_UNSPEC = -1 # avahi-common/address.h
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PROTO_INET = 0 # avahi-common/address.h
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PROTO_INET6 = 1 # avahi-common/address.h
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DBUS_NAME = "org.freedesktop.Avahi"
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DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
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DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
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DBUS_PATH_SERVER = "/"
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def string_array_to_txt_array(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,
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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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# 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):
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"""This isn't so much a class as it is a module-like namespace.
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It is instantiated once, and simulates having a GnuTLS module."""
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_library = ctypes.cdll.LoadLibrary(
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ctypes.util.find_library("gnutls"))
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_need_version = 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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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)]
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class openpgp_crt_int(ctypes.Structure):
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openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
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openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
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openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
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log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
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credentials_type_t = ctypes.c_int
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transport_ptr_t = ctypes.c_void_p
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close_request_t = ctypes.c_int
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class Error(Exception):
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def __init__(self, message=None, code=None, args=()):
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# We need to use the class name "GnuTLS" here, since this
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# exception might be raised from within GnuTLS.__init__,
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# which is called before the assignment to the "gnutls"
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# global variable has happened.
558
def __init__(self, message = None, code = None, args=()):
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# Default usage is by a message string, but if a return
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# code is passed, convert it to a string with
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# gnutls.strerror()
596
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if message is None and code is not None:
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message = gnutls.strerror(code)
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return super(gnutls.Error, self).__init__(
564
message = GnuTLS.strerror(code)
565
return super(GnuTLS.Error, self).__init__(
601
568
class CertificateSecurityError(Error):
572
class Credentials(object):
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def __init__(self):
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self._c_object = gnutls.certificate_credentials_t()
608
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gnutls.certificate_allocate_credentials(
609
576
ctypes.byref(self._c_object))
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self.type = gnutls.CRD_CERTIFICATE
612
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def __del__(self):
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gnutls.certificate_free_credentials(self._c_object)
616
def __init__(self, socket, credentials=None):
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class ClientSession(object):
583
def __init__(self, socket, credentials = None):
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self._c_object = gnutls.session_t()
618
gnutls_flags = gnutls.CLIENT
619
if gnutls.check_version(b"3.5.6"):
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gnutls_flags |= gnutls.NO_TICKETS
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gnutls_flags |= gnutls.ENABLE_RAWPK
623
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
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gnutls.init(ctypes.byref(self._c_object), gnutls.CLIENT)
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gnutls.set_default_priority(self._c_object)
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gnutls.transport_set_ptr(self._c_object, socket.fileno())
627
588
gnutls.handshake_set_private_extensions(self._c_object,
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return _error_code(result)
671
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.
678
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priority_set_direct = _library.gnutls_priority_set_direct
679
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priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
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ctypes.POINTER(ctypes.c_char_p)]
681
641
priority_set_direct.restype = _error_code
683
643
init = _library.gnutls_init
684
644
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
685
645
init.restype = _error_code
687
647
set_default_priority = _library.gnutls_set_default_priority
688
648
set_default_priority.argtypes = [session_t]
689
649
set_default_priority.restype = _error_code
691
651
record_send = _library.gnutls_record_send
692
652
record_send.argtypes = [session_t, ctypes.c_void_p,
694
654
record_send.restype = ctypes.c_ssize_t
695
655
record_send.errcheck = _retry_on_error
697
657
certificate_allocate_credentials = (
698
658
_library.gnutls_certificate_allocate_credentials)
699
659
certificate_allocate_credentials.argtypes = [
700
660
ctypes.POINTER(certificate_credentials_t)]
701
661
certificate_allocate_credentials.restype = _error_code
703
663
certificate_free_credentials = (
704
664
_library.gnutls_certificate_free_credentials)
705
certificate_free_credentials.argtypes = [
706
certificate_credentials_t]
665
certificate_free_credentials.argtypes = [certificate_credentials_t]
707
666
certificate_free_credentials.restype = None
709
668
handshake_set_private_extensions = (
710
669
_library.gnutls_handshake_set_private_extensions)
711
670
handshake_set_private_extensions.argtypes = [session_t,
713
672
handshake_set_private_extensions.restype = None
715
674
credentials_set = _library.gnutls_credentials_set
716
675
credentials_set.argtypes = [session_t, credentials_type_t,
718
677
credentials_set.restype = _error_code
720
679
strerror = _library.gnutls_strerror
721
680
strerror.argtypes = [ctypes.c_int]
722
681
strerror.restype = ctypes.c_char_p
724
683
certificate_type_get = _library.gnutls_certificate_type_get
725
684
certificate_type_get.argtypes = [session_t]
726
685
certificate_type_get.restype = _error_code
728
687
certificate_get_peers = _library.gnutls_certificate_get_peers
729
688
certificate_get_peers.argtypes = [session_t,
730
689
ctypes.POINTER(ctypes.c_uint)]
731
690
certificate_get_peers.restype = ctypes.POINTER(datum_t)
733
692
global_set_log_level = _library.gnutls_global_set_log_level
734
693
global_set_log_level.argtypes = [ctypes.c_int]
735
694
global_set_log_level.restype = None
737
696
global_set_log_function = _library.gnutls_global_set_log_function
738
697
global_set_log_function.argtypes = [log_func]
739
698
global_set_log_function.restype = None
741
700
deinit = _library.gnutls_deinit
742
701
deinit.argtypes = [session_t]
743
702
deinit.restype = None
745
704
handshake = _library.gnutls_handshake
746
705
handshake.argtypes = [session_t]
747
706
handshake.restype = _error_code
748
707
handshake.errcheck = _retry_on_error
750
709
transport_set_ptr = _library.gnutls_transport_set_ptr
751
710
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
752
711
transport_set_ptr.restype = None
754
713
bye = _library.gnutls_bye
755
714
bye.argtypes = [session_t, close_request_t]
756
715
bye.restype = _error_code
757
716
bye.errcheck = _retry_on_error
759
718
check_version = _library.gnutls_check_version
760
719
check_version.argtypes = [ctypes.c_char_p]
761
720
check_version.restype = ctypes.c_char_p
763
_need_version = b"3.3.0"
764
if check_version(_need_version) is None:
765
raise self.Error("Needs GnuTLS {} or later"
766
.format(_need_version))
768
_tls_rawpk_version = b"3.6.6"
769
has_rawpk = bool(check_version(_tls_rawpk_version))
773
class pubkey_st(ctypes.Structure):
775
pubkey_t = ctypes.POINTER(pubkey_st)
777
x509_crt_fmt_t = ctypes.c_int
779
# All the function declarations below are from
781
pubkey_init = _library.gnutls_pubkey_init
782
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
783
pubkey_init.restype = _error_code
785
pubkey_import = _library.gnutls_pubkey_import
786
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
788
pubkey_import.restype = _error_code
790
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
791
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
792
ctypes.POINTER(ctypes.c_ubyte),
793
ctypes.POINTER(ctypes.c_size_t)]
794
pubkey_get_key_id.restype = _error_code
796
pubkey_deinit = _library.gnutls_pubkey_deinit
797
pubkey_deinit.argtypes = [pubkey_t]
798
pubkey_deinit.restype = None
800
# All the function declarations below are from
803
openpgp_crt_init = _library.gnutls_openpgp_crt_init
804
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
805
openpgp_crt_init.restype = _error_code
807
openpgp_crt_import = _library.gnutls_openpgp_crt_import
808
openpgp_crt_import.argtypes = [openpgp_crt_t,
809
ctypes.POINTER(datum_t),
811
openpgp_crt_import.restype = _error_code
813
openpgp_crt_verify_self = \
814
_library.gnutls_openpgp_crt_verify_self
815
openpgp_crt_verify_self.argtypes = [
818
ctypes.POINTER(ctypes.c_uint),
820
openpgp_crt_verify_self.restype = _error_code
822
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
823
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
824
openpgp_crt_deinit.restype = None
826
openpgp_crt_get_fingerprint = (
827
_library.gnutls_openpgp_crt_get_fingerprint)
828
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
832
openpgp_crt_get_fingerprint.restype = _error_code
834
if check_version(b"3.6.4"):
835
certificate_type_get2 = _library.gnutls_certificate_type_get2
836
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
837
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
839
751
# Remove non-public functions
840
752
del _error_code, _retry_on_error
753
# Create the global "gnutls" object, simulating a module
843
756
def call_pipe(connection, # : multiprocessing.Connection
844
757
func, *args, **kwargs):
845
758
"""This function is meant to be called by multiprocessing.Process
847
760
This function runs func(*args, **kwargs), and writes the resulting
848
761
return value on the provided multiprocessing.Connection.
850
763
connection.send(func(*args, **kwargs))
851
764
connection.close()
766
class Client(object):
855
767
"""A representation of a client host served by this server.
858
770
approved: bool(); 'None' if not yet approved/disapproved
859
771
approval_delay: datetime.timedelta(); Time to wait for approval
860
772
approval_duration: datetime.timedelta(); Duration of one approval
861
checker: multiprocessing.Process(); a running checker process used
862
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.
864
776
checker_callback_tag: a GLib event source tag, or None
865
777
checker_command: string; External command which is run to check
866
778
if client lives. %() expansions are done at
1543
1447
exc_info=error)
1544
1448
return xmlstring
1548
1451
dbus.OBJECT_MANAGER_IFACE
1549
1452
except AttributeError:
1550
1453
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1553
1455
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1554
1456
"""A D-Bus object with an ObjectManager.
1556
1458
Classes inheriting from this exposes the standard
1557
1459
GetManagedObjects call and the InterfacesAdded and
1558
1460
InterfacesRemoved signals on the standard
1559
1461
"org.freedesktop.DBus.ObjectManager" interface.
1561
1463
Note: No signals are sent automatically; they must be sent
1564
1466
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1565
out_signature="a{oa{sa{sv}}}")
1467
out_signature = "a{oa{sa{sv}}}")
1566
1468
def GetManagedObjects(self):
1567
1469
"""This function must be overridden"""
1568
1470
raise NotImplementedError()
1570
1472
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1571
signature="oa{sa{sv}}")
1473
signature = "oa{sa{sv}}")
1572
1474
def InterfacesAdded(self, object_path, interfaces_and_properties):
1575
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1477
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature = "oas")
1576
1478
def InterfacesRemoved(self, object_path, interfaces):
1579
1481
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1581
path_keyword='object_path',
1582
connection_keyword='connection')
1482
out_signature = "s",
1483
path_keyword = 'object_path',
1484
connection_keyword = 'connection')
1583
1485
def Introspect(self, object_path, connection):
1584
1486
"""Overloading of standard D-Bus method.
1586
1488
Override return argument name of GetManagedObjects to be
1587
1489
"objpath_interfaces_and_properties"
2531
class MultiprocessingMixIn:
2365
class MultiprocessingMixIn(object):
2532
2366
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2534
2368
def sub_process_main(self, request, address):
2536
2370
self.finish_request(request, address)
2537
2371
except Exception:
2538
2372
self.handle_error(request, address)
2539
2373
self.close_request(request)
2541
2375
def process_request(self, request, address):
2542
2376
"""Start a new process to process the request."""
2543
proc = multiprocessing.Process(target=self.sub_process_main,
2544
args=(request, address))
2377
proc = multiprocessing.Process(target = self.sub_process_main,
2378
args = (request, address))
2549
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
2383
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2550
2384
""" adds a pipe to the MixIn """
2552
2386
def process_request(self, request, client_address):
2553
2387
"""Overrides and wraps the original process_request().
2555
2389
This function creates a new pipe in self.pipe
2557
2391
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2559
2393
proc = MultiprocessingMixIn.process_request(self, request,
2560
2394
client_address)
2561
2395
self.child_pipe.close()
2562
2396
self.add_pipe(parent_pipe, proc)
2564
2398
def add_pipe(self, parent_pipe, proc):
2565
2399
"""Dummy function; override as necessary"""
2566
2400
raise NotImplementedError()
2569
2403
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2570
socketserver.TCPServer):
2404
socketserver.TCPServer, object):
2571
2405
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2574
2408
enabled: Boolean; whether this server is activated yet
2575
2409
interface: None or a network interface name (string)
2576
2410
use_ipv6: Boolean; to use IPv6 or not
2579
2413
def __init__(self, server_address, RequestHandlerClass,
2580
2414
interface=None,
2692
2523
self.gnutls_priority = gnutls_priority
2693
2524
IPv6_TCPServer.__init__(self, server_address,
2694
2525
RequestHandlerClass,
2695
interface=interface,
2526
interface = interface,
2527
use_ipv6 = use_ipv6,
2528
socketfd = socketfd)
2699
2530
def server_activate(self):
2700
2531
if self.enabled:
2701
2532
return socketserver.TCPServer.server_activate(self)
2703
2534
def enable(self):
2704
2535
self.enabled = True
2706
2537
def add_pipe(self, parent_pipe, proc):
2707
2538
# Call "handle_ipc" for both data and EOF events
2708
2539
GLib.io_add_watch(
2709
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2710
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2540
parent_pipe.fileno(),
2541
GLib.IO_IN | GLib.IO_HUP,
2711
2542
functools.partial(self.handle_ipc,
2712
parent_pipe=parent_pipe,
2543
parent_pipe = parent_pipe,
2715
2546
def handle_ipc(self, source, condition,
2716
2547
parent_pipe=None,
2718
2549
client_object=None):
2719
2550
# error, or the other end of multiprocessing.Pipe has closed
2720
2551
if condition & (GLib.IO_ERR | GLib.IO_HUP):
2721
2552
# Wait for other process to exit
2725
2556
# Read a request from the child
2726
2557
request = parent_pipe.recv()
2727
2558
command = request[0]
2729
2560
if command == 'init':
2730
key_id = request[1].decode("ascii")
2731
fpr = request[2].decode("ascii")
2732
address = request[3]
2562
address = request[2]
2734
2564
for c in self.clients.values():
2735
if key_id == ("E3B0C44298FC1C149AFBF4C8996FB924"
2736
"27AE41E4649B934CA495991B7852B855"):
2738
if key_id and c.key_id == key_id:
2741
if fpr and c.fingerprint == fpr:
2565
if c.fingerprint == fpr:
2745
logger.info("Client not found for key ID: %s, address"
2746
": %s", key_id or fpr, address)
2569
logger.info("Client not found for fingerprint: %s, ad"
2570
"dress: %s", fpr, address)
2747
2571
if self.use_dbus:
2748
2572
# Emit D-Bus signal
2749
mandos_dbus_service.ClientNotFound(key_id or fpr,
2573
mandos_dbus_service.ClientNotFound(fpr,
2751
2575
parent_pipe.send(False)
2754
2578
GLib.io_add_watch(
2755
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2756
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2579
parent_pipe.fileno(),
2580
GLib.IO_IN | GLib.IO_HUP,
2757
2581
functools.partial(self.handle_ipc,
2758
parent_pipe=parent_pipe,
2760
client_object=client))
2582
parent_pipe = parent_pipe,
2584
client_object = client))
2761
2585
parent_pipe.send(True)
2762
2586
# remove the old hook in favor of the new above hook on
2766
2590
funcname = request[1]
2767
2591
args = request[2]
2768
2592
kwargs = request[3]
2770
2594
parent_pipe.send(('data', getattr(client_object,
2771
2595
funcname)(*args,
2774
2598
if command == 'getattr':
2775
2599
attrname = request[1]
2776
2600
if isinstance(client_object.__getattribute__(attrname),
2777
collections.abc.Callable):
2601
collections.Callable):
2778
2602
parent_pipe.send(('function', ))
2780
2604
parent_pipe.send((
2781
2605
'data', client_object.__getattribute__(attrname)))
2783
2607
if command == 'setattr':
2784
2608
attrname = request[1]
2785
2609
value = request[2]
2786
2610
setattr(client_object, attrname, value)
2791
2615
def rfc3339_duration_to_delta(duration):
2792
2616
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2794
>>> timedelta = datetime.timedelta
2795
>>> rfc3339_duration_to_delta("P7D") == timedelta(7)
2797
>>> rfc3339_duration_to_delta("PT60S") == timedelta(0, 60)
2799
>>> rfc3339_duration_to_delta("PT60M") == timedelta(0, 3600)
2801
>>> rfc3339_duration_to_delta("PT24H") == timedelta(1)
2803
>>> rfc3339_duration_to_delta("P1W") == timedelta(7)
2805
>>> rfc3339_duration_to_delta("PT5M30S") == timedelta(0, 330)
2807
>>> rfc3339_duration_to_delta("P1DT3M20S") == 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)
2812
2634
# Parsing an RFC 3339 duration with regular expressions is not
2813
2635
# possible - there would have to be multiple places for the same
2814
2636
# values, like seconds. The current code, while more esoteric, is
2815
2637
# cleaner without depending on a parsing library. If Python had a
2816
2638
# built-in library for parsing we would use it, but we'd like to
2817
2639
# avoid excessive use of external libraries.
2819
2641
# New type for defining tokens, syntax, and semantics all-in-one
2820
2642
Token = collections.namedtuple("Token", (
2821
2643
"regexp", # To match token; if "value" is not None, must have
3008
2827
parser.add_argument("--no-zeroconf", action="store_false",
3009
2828
dest="zeroconf", help="Do not use Zeroconf",
3012
2831
options = parser.parse_args()
2835
fail_count, test_count = doctest.testmod()
2836
sys.exit(os.EX_OK if fail_count == 0 else 1)
3014
2838
# Default values for config file for server-global settings
3015
if gnutls.has_rawpk:
3016
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
3017
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
3019
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
3020
":+SIGN-DSA-SHA256")
3021
server_defaults = {"interface": "",
3025
"priority": priority,
3026
"servicename": "Mandos",
3032
"statedir": "/var/lib/mandos",
3033
"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",
3038
2857
# Parse config file for server-global settings
3039
server_config = configparser.ConfigParser(server_defaults)
2858
server_config = configparser.SafeConfigParser(server_defaults)
3040
2859
del server_defaults
3041
2860
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3042
# Convert the ConfigParser object to a dict
2861
# Convert the SafeConfigParser object to a dict
3043
2862
server_settings = server_config.defaults()
3044
2863
# Use the appropriate methods on the non-string config options
3045
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3046
"foreground", "zeroconf"):
2864
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
3047
2865
server_settings[option] = server_config.getboolean("DEFAULT",
3049
2867
if server_settings["port"]:
3222
3040
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3223
3041
service = AvahiServiceToSyslog(
3224
name=server_settings["servicename"],
3225
servicetype="_mandos._tcp",
3042
name = server_settings["servicename"],
3043
servicetype = "_mandos._tcp",
3044
protocol = protocol,
3228
3046
if server_settings["interface"]:
3229
3047
service.interface = if_nametoindex(
3230
3048
server_settings["interface"].encode("utf-8"))
3232
3050
global multiprocessing_manager
3233
3051
multiprocessing_manager = multiprocessing.Manager()
3235
3053
client_class = Client
3237
client_class = functools.partial(ClientDBus, bus=bus)
3055
client_class = functools.partial(ClientDBus, bus = bus)
3239
3057
client_settings = Client.config_parser(client_config)
3240
3058
old_client_settings = {}
3241
3059
clients_data = {}
3243
3061
# This is used to redirect stdout and stderr for checker processes
3245
wnull = open(os.devnull, "w") # A writable /dev/null
3063
wnull = open(os.devnull, "w") # A writable /dev/null
3246
3064
# Only used if server is running in foreground but not in debug
3248
3066
if debug or not foreground:
3251
3069
# Get client data and settings from last running state.
3252
3070
if server_settings["restore"]:
3254
3072
with open(stored_state_path, "rb") as stored_state:
3255
if sys.version_info.major == 2:
3073
if sys.version_info.major == 2:
3256
3074
clients_data, old_client_settings = pickle.load(
3259
3077
bytes_clients_data, bytes_old_client_settings = (
3260
pickle.load(stored_state, encoding="bytes"))
3261
# Fix bytes to strings
3078
pickle.load(stored_state, encoding = "bytes"))
3079
### Fix bytes to strings
3264
clients_data = {(key.decode("utf-8")
3265
if isinstance(key, bytes)
3268
bytes_clients_data.items()}
3082
clients_data = { (key.decode("utf-8")
3083
if isinstance(key, bytes)
3086
bytes_clients_data.items() }
3269
3087
del bytes_clients_data
3270
3088
for key in clients_data:
3271
value = {(k.decode("utf-8")
3272
if isinstance(k, bytes) else k): v
3274
clients_data[key].items()}
3089
value = { (k.decode("utf-8")
3090
if isinstance(k, bytes) else k): v
3092
clients_data[key].items() }
3275
3093
clients_data[key] = value
3276
3094
# .client_structure
3277
3095
value["client_structure"] = [
3278
3096
(s.decode("utf-8")
3279
3097
if isinstance(s, bytes)
3280
3098
else s) for s in
3281
value["client_structure"]]
3282
# .name, .host, and .checker_command
3283
for k in ("name", "host", "checker_command"):
3099
value["client_structure"] ]
3101
for k in ("name", "host"):
3284
3102
if isinstance(value[k], bytes):
3285
3103
value[k] = value[k].decode("utf-8")
3286
if "key_id" not in value:
3287
value["key_id"] = ""
3288
elif "fingerprint" not in value:
3289
value["fingerprint"] = ""
3290
# old_client_settings
3104
## old_client_settings
3292
3106
old_client_settings = {
3293
3107
(key.decode("utf-8")
3294
3108
if isinstance(key, bytes)
3295
3109
else key): value
3296
3110
for key, value in
3297
bytes_old_client_settings.items()}
3111
bytes_old_client_settings.items() }
3298
3112
del bytes_old_client_settings
3299
# .host and .checker_command
3300
3114
for value in old_client_settings.values():
3301
for attribute in ("host", "checker_command"):
3302
if isinstance(value[attribute], bytes):
3303
value[attribute] = (value[attribute]
3115
if isinstance(value["host"], bytes):
3116
value["host"] = (value["host"]
3305
3118
os.remove(stored_state_path)
3306
3119
except IOError as e:
3307
3120
if e.errno == errno.ENOENT: