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# -*- coding: utf-8 -*-
# darwin.py
# Copyright (C) 2013-2017 LEAP
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
Darwin VPN launcher implementation.
"""
import getpass
import os
import socket
import sys
from twisted.logger import Logger
from leap.bitmask.vpn.launcher import VPNLauncher
from leap.bitmask.vpn.launcher import VPNLauncherException
from leap.common.config import get_path_prefix
logger = Logger()
class HelperCommand(object):
SOCKET_ADDR = '/tmp/bitmask-helper.socket'
def __init__(self):
pass
def _connect(self):
self._sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
try:
self._sock.connect(self.SOCKET_ADDR)
except socket.error, msg:
raise RuntimeError(msg)
def send(self, cmd, args=''):
# TODO check cmd is in allowed list
self._connect()
sock = self._sock
data = ""
command = cmd + ' ' + args + '/CMD'
try:
sock.sendall(command)
while '\n' not in data:
data += sock.recv(32)
finally:
sock.close()
return data
class NoTunKextLoaded(VPNLauncherException):
pass
class DarwinVPNLauncher(VPNLauncher):
"""
VPN launcher for the Darwin Platform
"""
UP_SCRIPT = None
DOWN_SCRIPT = None
# TODO -- move this to bitmask-helper
# Hardcode the installation path for OSX for security, openvpn is
# run as root
INSTALL_PATH = "/Applications/Bitmask.app/"
INSTALL_PATH_ESCAPED = os.path.realpath(os.getcwd() + "/../../")
OPENVPN_BIN = 'openvpn.leap'
OPENVPN_PATH = "%s/Contents/Resources/openvpn" % (INSTALL_PATH,)
OPENVPN_PATH_ESCAPED = "%s/Contents/Resources/openvpn" % (
INSTALL_PATH_ESCAPED,)
OPENVPN_BIN_PATH = "%s/Contents/Resources/%s" % (INSTALL_PATH,
OPENVPN_BIN)
if not os.path.isfile(OPENVPN_BIN_PATH):
# let's try with the homebrew path
OPENVPN_BIN_PATH = '/usr/local/sbin/openvpn'
OTHER_FILES = []
@classmethod
def is_kext_loaded(kls):
# latest versions do not need tuntap, so we're going to deprecate
# the kext checking.
True
@classmethod
def get_vpn_command(kls, vpnconfig, providerconfig, socket_host,
remotes, socket_port="unix", openvpn_verb=1):
"""
Returns the OSX implementation for the vpn launching command.
Might raise:
NoTunKextLoaded,
OpenVPNNotFoundException,
VPNLauncherException.
:param eipconfig: eip configuration object
:type eipconfig: EIPConfig
:param providerconfig: provider specific configuration
:type providerconfig: ProviderConfig
:param socket_host: either socket path (unix) or socket IP
:type socket_host: str
:param socket_port: either string "unix" if it's a unix socket,
or port otherwise
:type socket_port: str
:param openvpn_verb: the openvpn verbosity wanted
:type openvpn_verb: int
:return: A VPN command ready to be launched.
:rtype: list
"""
# if not kls.is_kext_loaded():
# raise NoTunKextLoaded('tun kext is needed, but was not found')
# we use `super` in order to send the class to use
command = super(DarwinVPNLauncher, kls).get_vpn_command(
vpnconfig, providerconfig, socket_host, socket_port, remotes,
openvpn_verb)
command.extend(['--setenv', "LEAPUSER", getpass.getuser()])
return command
# TODO ship statically linked binary and deprecate.
@classmethod
def get_vpn_env(kls):
"""
Returns a dictionary with the custom env for the platform.
This is mainly used for setting LD_LIBRARY_PATH to the correct
path when distributing a standalone client
:rtype: dict
"""
ld_library_path = os.path.join(get_path_prefix(), "..", "lib")
ld_library_path.encode(sys.getfilesystemencoding())
return {
"DYLD_LIBRARY_PATH": ld_library_path
}
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