core/utils.py
# Copyright (c) 2014-2016 Marcello Salvati
#
# 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, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
# USA
#
import os
import logging
import re
import sys
from core.logger import logger
from core.proxyplugins import ProxyPlugins
from scapy.all import get_if_addr, get_if_hwaddr, get_working_if
formatter = logging.Formatter("%(asctime)s [Utils] %(message)s", datefmt="%Y-%m-%d %H:%M:%S")
log = logger().setup_logger("Utils", formatter)
def shutdown(message=None):
for plugin in ProxyPlugins().plugin_list:
plugin.on_shutdown()
sys.exit(message)
def set_ip_forwarding(value):
log.debug("Setting ip forwarding to {}".format(value))
with open('/proc/sys/net/ipv4/ip_forward', 'w') as file:
file.write(str(value))
file.close()
def get_iface():
iface = get_working_if()
log.debug("Interface {} seems to be up and running")
return iface
def get_ip(interface):
try:
ip_address = get_if_addr(interface)
if (ip_address == "0.0.0.0") or (ip_address is None):
shutdown("Interface {} does not have an assigned IP address".format(interface))
return ip_address
except Exception as e:
shutdown("Error retrieving IP address from {}: {}".format(interface, e))
def get_mac(interface):
try:
mac_address = get_if_hwaddr(interface)
return mac_address
except Exception as e:
shutdown("Error retrieving MAC address from {}: {}".format(interface, e))
class iptables:
dns = False
http = False
smb = False
nfqueue = False
__shared_state = {}
def __init__(self):
self.__dict__ = self.__shared_state
def flush(self):
log.debug("Flushing iptables")
os.system('iptables -F && iptables -X && iptables -t nat -F && iptables -t nat -X')
self.dns = False
self.http = False
self.smb = False
self.nfqueue = False
def HTTP(self, http_redir_port):
log.debug("Setting iptables HTTP redirection rule from port 80 to {}".format(http_redir_port))
os.system('iptables -t nat -A PREROUTING -p tcp --destination-port 80 -j REDIRECT --to-port {}'.format(http_redir_port))
self.http = True
def DNS(self, dns_redir_port):
log.debug("Setting iptables DNS redirection rule from port 53 to {}".format(dns_redir_port))
os.system('iptables -t nat -A PREROUTING -p udp --destination-port 53 -j REDIRECT --to-port {}'.format(dns_redir_port))
self.dns = True
def SMB(self, smb_redir_port):
log.debug("Setting iptables SMB redirection rule from port 445 to {}".format(smb_redir_port))
os.system('iptables -t nat -A PREROUTING -p tcp --destination-port 445 -j REDIRECT --to-port {}'.format(smb_redir_port))
self.smb = True
def NFQUEUE(self):
log.debug("Setting iptables NFQUEUE rule")
os.system('iptables -I FORWARD -j NFQUEUE --queue-num 0')
self.nfqueue = True