pax_global_header00006660000000000000000000000064126121733170014515gustar00rootroot0000000000000052 comment=f5abf285cab386690b3fdd37410b87d50eb9f25d python-netfilter-0.6.3/000077500000000000000000000000001261217331700150365ustar00rootroot00000000000000python-netfilter-0.6.3/.addcopyright000066400000000000000000000014531261217331700175230ustar00rootroot00000000000000{ 'directories': ['netfilter'], 'license': """python-netfilter - Python modules for manipulating netfilter rules Copyright (C) 2007-2012 Bolloré Telecom Copyright (C) 2013-2015 Jeremy Lainé 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 . """ } python-netfilter-0.6.3/.gitignore000066400000000000000000000000061261217331700170220ustar00rootroot00000000000000*.pyc python-netfilter-0.6.3/.travis.yml000066400000000000000000000000771261217331700171530ustar00rootroot00000000000000language: python python: - "2.7" - "3.4" script: nosetests python-netfilter-0.6.3/COPYING000066400000000000000000001045131261217331700160750ustar00rootroot00000000000000 GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007 Copyright (C) 2007 Free Software Foundation, Inc. Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The GNU General Public License is a free, copyleft license for software and other kinds of works. 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The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, your program's commands might be different; for a GUI interface, you would use an "about box". You should also get your employer (if you work as a programmer) or school, if any, to sign a "copyright disclaimer" for the program, if necessary. For more information on this, and how to apply and follow the GNU GPL, see . The GNU General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. But first, please read . python-netfilter-0.6.3/ChangeLog000066400000000000000000000037221261217331700166140ustar00rootroot00000000000000python-netfilter 0.6.3 (2015-10-22) * Invoke iptables with --wait option if supported. python-netfilter 0.6.2 (2015-05-28) * Add PyPI classifiers. * Rename from 'python-netfilter' to 'netfilter'. python-netfilter 0.6.1 (2015-05-26) * Python3 compatibility fixes. python-netfilter 0.6.0 (2015-05-21) * Handle negated source / destination / protocol / interfaces. python-netfilter 0.5.9 (2012-10-02) * Handle already existing IPv6 chains like IPv4. python-netfilter 0.5.8 (2012-09-24) * Optimise chain and rule parsing. * Reindent code with spaces. python-netfilter 0.5.7 (2011-03-21) * use subprocess.Popen instead of popen2.Popen3 in netfilter.firewall * handle match negation format of iptables-save 1.4.3 (thanks Björn Lässig) python-netfilter 0.5.6 (2009-03-27) * relicense under GPLv3 or later python-netfilter 0.5.5 (2008-10-09) * use Popen.communicate to avoid deadlock calling iptables-save python-netfilter 0.5.4 (2008-04-17) * handle source/destination format of iptables-save 1.4.0 (appends /32) * add netfilter.firewall.getNode to retrieve node name (uname -n) python-netfilter 0.5.3 (2007-12-31) * add IPv6 support to Table and Firewall classes python-netfilter 0.5.2 (2007-11-23) * internal API: use lists, not strings to represent commands * use subprocess.Popen instead of popen2.Popen3 python-netfilter 0.5.1 (2007-11-07) * remove hard-coded path to iptables / iptables-save python-netfilter 0.5.0 (2007-08-29) * add netfilter.firewall python-netfilter 0.4.3 (2007-07-25) * add a buffered mode to netfilter.table.Table python-netfilter 0.4.2 (2007-07-24) * make it possible to delete/flush all chains in a table * raise exceptions when iptables commands fail python-netfilter 0.4.1 (2007-07-23) * preserve ordering of tables / chains * add a method to dump tables / chains / rules like iptable-save * make it possible to get / set the policy for a chain * add support for 'goto' target python-netfilter 0.4.0 (2007-07-20) * initial release python-netfilter-0.6.3/MANIFEST.in000066400000000000000000000001621261217331700165730ustar00rootroot00000000000000include COPYING include ChangeLog include README.md recursive-include netfilter *.py recursive-include tests *.py python-netfilter-0.6.3/README.md000066400000000000000000000023771261217331700163260ustar00rootroot00000000000000python-netfilter - Python modules for manipulating netfilter rules Copyright (C) 2007-2012 Bolloré Telecom Copyright (C) 2013-2015 Jeremy Lainé About ===== python-netfilter is a set of modules for the Python programming language which allows you to manipulate netfilter rules. License ======= 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 . Simple example ============== from netfilter.rule import Rule,Match from netfilter.table import Table rule = Rule( in_interface='eth0', protocol='tcp', matches=[Match('tcp', '--dport 80')], jump='ACCEPT'))) table = Table('filter') table.append_rule('INPUT', rule) table.delete_rule('INPUT', rule) python-netfilter-0.6.3/netfilter/000077500000000000000000000000001261217331700170325ustar00rootroot00000000000000python-netfilter-0.6.3/netfilter/__init__.py000066400000000000000000000014611261217331700211450ustar00rootroot00000000000000# -*- coding: utf-8 -*- # # python-netfilter - Python modules for manipulating netfilter rules # Copyright (C) 2007-2012 Bolloré Telecom # Copyright (C) 2013-2015 Jeremy Lainé # # 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 . # python-netfilter-0.6.3/netfilter/firewall.py000066400000000000000000000157221261217331700212200ustar00rootroot00000000000000# -*- coding: utf-8 -*- # # python-netfilter - Python modules for manipulating netfilter rules # Copyright (C) 2007-2012 Bolloré Telecom # Copyright (C) 2013-2015 Jeremy Lainé # # 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 . # import os import subprocess import sys from netfilter.rule import Rule,Match,Target import netfilter.table class Firewall: """The Firewall class represents a simple netfilter-based firewall. It support 'start', 'stop' and 'restart' operations. WARNING: THIS API IS NOT FROZEN! """ def __init__(self, auto_commit = True, ipv6 = False): self.filter = netfilter.table.Table( name='filter', auto_commit=auto_commit, ipv6=ipv6) self.__ipv6 = ipv6 self.__tables = [ self.filter ] if not ipv6: self.nat = netfilter.table.Table( name='nat', auto_commit=auto_commit, ipv6=ipv6) self.__tables.append(self.nat) def clear(self): """Clear tables.""" for table in self.__tables: table.flush_chain() table.delete_chain() def commit(self): """Commit changes to the tables.""" for table in self.__tables: table.commit() def get_buffer(self): """Get the change buffers.""" buffer = [] for table in self.__tables: buffer.extend(table.get_buffer()) return buffer def run(self, args): """ Process command line arguments and run the given command command (start, stop, restart). """ prog = args[0] if len(args) < 2: self.usage(prog) return 1 command = args[1] if command == "start": self.start() elif command == "stop": self.stop() elif command == "restart": self.stop() self.start() else: self.usage(prog) return 1 return 0 def start(self): """Start the firewall.""" self.clear() self.setDefaultPolicy() self.acceptIcmp() self.acceptInput('lo') def stop(self): """Stop the firewall.""" self.clear() self.setOpenPolicy() def usage(self, prog): """Print program usage.""" sys.stderr.write("Usage: %s {start|stop|restart}\n" % prog) def acceptForward(self, in_interface=None, out_interface=None): self.printMessage("allow FORWARD", in_interface) self.filter.append_rule('FORWARD', Rule( in_interface=in_interface, out_interface=out_interface, jump='ACCEPT')) def acceptIcmp(self, interface=None): self.printMessage("allow selected icmp INPUT", interface) if self.__ipv6: self.filter.append_rule('INPUT', Rule( in_interface=interface, protocol='icmpv6', jump='ACCEPT')) else: types = ['echo-request', 'network-unreachable', 'host-unreachable', 'port-unreachable', 'fragmentation-needed', 'time-exceeded'] for type in types: self.filter.append_rule('INPUT', Rule( in_interface=interface, protocol='icmp', matches=[Match('icmp', "--icmp-type %s" % (type))], jump='ACCEPT')) def acceptInput(self, interface=None): self.printMessage("allow INPUT", interface) self.filter.append_rule('INPUT', Rule( in_interface=interface, jump='ACCEPT')) def acceptProtocol(self, interface, protocol, ports, destination=None, source=None): port_str = ','.join(ports) self.printMessage("allow selected %s INPUT (ports: %s)" % (protocol, port_str), interface) self.filter.append_rule('INPUT', Rule( in_interface=interface, destination=destination, source=source, protocol=protocol, matches=[Match('state', '--state NEW'), Match('multiport', "--destination-port %s" % port_str)], jump='ACCEPT')) def getNode(self): p = subprocess.Popen(["uname", "-n"], stdout=subprocess.PIPE, stderr=subprocess.PIPE, close_fds=True) out, err = p.communicate() status = p.wait() # check exit status if not os.WIFEXITED(status) or os.WEXITSTATUS(status): raise Exception("uname failed : %s" % ''.join(err)) node = out.strip() return node def printMessage(self, msg, interface=None): if self.__ipv6: version = 'IPv6' else: version = 'IPv4' if interface: prefix = "interface %s" % interface else: prefix = "global" sys.stderr.write(" * %s %s: %s\n" % (version, prefix, msg)) def redirectHttp(self, interface, proxy_port): if self.__ipv6: return self.printMessage("redirect HTTP to port %s" % proxy_port, interface) self.nat.append_rule('PREROUTING', Rule( in_interface=interface, protocol='tcp', matches=[Match('tcp', '--dport 80')], jump=Target('REDIRECT', '--to-port %s' % proxy_port))) def setDefaultPolicy(self): self.printMessage("set default policy", None) self.filter.set_policy('INPUT', 'DROP') self.filter.append_rule('INPUT', Rule( matches=[Match('state', '--state ESTABLISHED,RELATED')], jump='ACCEPT')) self.filter.set_policy('OUTPUT', 'ACCEPT') self.filter.set_policy('FORWARD', 'DROP') self.filter.append_rule('FORWARD', Rule( matches=[Match('state', '--state ESTABLISHED,RELATED')], jump='ACCEPT')) def setOpenPolicy(self): self.printMessage("set open policy", None) self.filter.set_policy('INPUT', 'ACCEPT') self.filter.set_policy('OUTPUT', 'ACCEPT') self.filter.set_policy('FORWARD', 'ACCEPT') def sourceNAT(self, interface): if self.__ipv6: return self.printMessage("enable SNAT", interface) self.nat.append_rule('POSTROUTING', Rule( out_interface=interface, jump='MASQUERADE')) if __name__ == "__main__": sys.exit(Firewall().run(sys.argv)) python-netfilter-0.6.3/netfilter/parser.py000066400000000000000000000107041261217331700207020ustar00rootroot00000000000000# -*- coding: utf-8 -*- # # python-netfilter - Python modules for manipulating netfilter rules # Copyright (C) 2007-2012 Bolloré Telecom # Copyright (C) 2013-2015 Jeremy Lainé # # 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 . # import re try: from UserDict import UserDict except ImportError: from collections import UserDict import netfilter.rule # define useful regexps re_chain = re.compile(r'^:*([^\s]+) ([^\s]+) \[([0-9]+):([0-9]+)\]$') re_rule = re.compile(r'^\[([0-9]+):([0-9]+)\] -A ([^\s]+) (.*)$') re_word = re.compile(r'("[^"]*"|[^\s]+)') re_main_opt = re.compile(r'^-([^-])$') class odict(UserDict): def __init__(self, dict = None): self._keys = [] UserDict.__init__(self, dict) def __setitem__(self, key, item): UserDict.__setitem__(self, key, item) if key not in self._keys: self._keys.append(key) def keys(self): return self._keys class ParseError(Exception): pass def split_words(line): def unquote(x): if x and x[0] == '"': return x[1:-1] else: return x if '"' in line: # handle quoted arguments return [ unquote(x) for x in re_word.findall(line) ] else: # shortcut for the bulk of cases return line.split() def pull_extension_opts(bits, pos): opt_bits = [] while pos < len(bits) and not re_main_opt.match(bits[pos]): opt_bits.append(bits[pos]) pos += 1 return opt_bits, pos def pull_main_opt(bits, pos): val = bits[pos] pos += 1 if val == '!': val += ' ' + bits[pos] pos += 1 return val, pos def parse_rule(spec): rule = netfilter.rule.Rule() bits = split_words(spec) pos = 0 while pos < len(bits): # in iptables 1.4.3, negation moved before the match option if bits[pos] == '!' and pos < len(bits) - 1: bits[pos] = bits[pos+1] bits[pos+1] = '!' bit = bits[pos] pos += 1 if bit == '-d': rule.destination, pos = pull_main_opt(bits, pos) elif bit == '-i': rule.in_interface, pos = pull_main_opt(bits, pos) elif bit == '-g': target_name = bits[pos] opts, pos = pull_extension_opts(bits, pos + 1) rule.goto = netfilter.rule.Target(target_name, opts) elif bit == '-j': target_name = bits[pos] opts, pos = pull_extension_opts(bits, pos + 1) rule.jump = netfilter.rule.Target(target_name, opts) elif bit == '-m': match_name = bits[pos] opts, pos = pull_extension_opts(bits, pos + 1) rule.matches.append( netfilter.rule.Match(match_name, opts)) elif bit == '-o': rule.out_interface, pos = pull_main_opt(bits, pos) elif bit == '-p': rule.protocol, pos = pull_main_opt(bits, pos) elif bit == '-s': rule.source, pos = pull_main_opt(bits, pos) else: raise ParseError("unhandled option '%s' in rule '%s'" % (bit, spec)) return rule def parse_chains(data): """ Parse the chain definitions. """ chains = odict() for line in data.splitlines(True): m = re_chain.match(line) if m: policy = None if m.group(2) != '-': policy = m.group(2) chains[m.group(1)] = { 'policy': policy, 'packets': int(m.group(3)), 'bytes': int(m.group(4)), } return chains def parse_rules(data, chain): """ Parse the rules for the specified chain. """ rules = [] for line in data.splitlines(True): m = re_rule.match(line) if m and m.group(3) == chain: rule = parse_rule(m.group(4)) rule.packets = int(m.group(1)) rule.bytes = int(m.group(2)) rules.append(rule) return rules python-netfilter-0.6.3/netfilter/rule.py000066400000000000000000000207121261217331700203550ustar00rootroot00000000000000# -*- coding: utf-8 -*- # # python-netfilter - Python modules for manipulating netfilter rules # Copyright (C) 2007-2012 Bolloré Telecom # Copyright (C) 2013-2015 Jeremy Lainé # # 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 . # import logging import re import netfilter.parser # define useful regexps re_extension_opt = re.compile(r'^--(.*)$') class Extension: """The Extension class is the base class for iptables match and target extensions. """ def __init__(self, name, options, rewrite_options = {}): self.__name = name self.__options = {} self.__rewrite_options = rewrite_options if options: self.__parse_options(options) def __eq__(self, other): if isinstance(other, Extension): return self.__name == other.__name and \ self.__options == other.__options else: return NotImplemented def __ne__(self, other): result = self.__eq__(other) if result is NotImplemented: return result return not result def __parse_options(self, options): if isinstance(options, list): bits = options else: bits = netfilter.parser.split_words(options) pos = 0 cur_opt = [] while pos < len(bits): if bits[pos] == '!': cur_opt.append(bits[pos]) pos += 1 continue # get option name m = re_extension_opt.match(bits[pos]) if not m: raise Exception("expected option, got: %s" % bits[pos]) pos += 1 # rewrite option to its canonical name tmp_opt = m.group(1) if tmp_opt in self.__rewrite_options: tmp_opt = self.__rewrite_options[tmp_opt] cur_opt.append(tmp_opt) # collect value(s) vals = [] while pos < len(bits) and not re_extension_opt.match(bits[pos]): vals.append(bits[pos]) pos += 1 # store option opt = ' '.join(cur_opt) self.__options[opt] = vals # reset current option name cur_opt = [] def log(self, level, prefix = ''): """Writes the contents of the Extension to the logging system. """ logging.log(level, "%sname: %s", prefix, self.__name) logging.log(level, "%soptions: %s", prefix, self.__options) def name(self): """Accessor for the Extension's name. """ return self.__name def options(self): """Accessor for the Extension's options. """ return self.__options def specbits(self): """Returns the array of arguments that would be given to iptables for the current Extension. """ bits = [] for opt in sorted(self.__options): # handle the case where this is a negated option m = re.match(r'^! (.*)', opt) if m: bits.extend(['!', "--%s" % m.group(1)]) else: bits.append("--%s" % opt) optval = self.__options[opt] if isinstance(optval, list): bits.extend(optval) else: bits.append(optval) return bits class Match(Extension): """The Match class represents an iptables match extension, for instance 'multiport'. """ def __init__(self, name, options = None): Extension.__init__(self, name, options, { 'destination-port': 'dport', 'destination-ports': 'dports', 'source-port': 'sport', 'source-ports': 'sports'}) class Target(Extension): """The Target class represents an iptables target, which can be used in the 'jump' statement of a rule. """ def __init__(self, name, options = None): Extension.__init__(self, name, options) class Rule: """The Rule represents an iptables rule. """ def __init__(self, **kwargs): # initialise rule definition self.protocol = None self.destination = None self.source = None self.goto = None self.jump = None self.in_interface = None self.out_interface = None self.matches = [] # initialise counters self.packets = 0 self.bytes = 0 # assign supplied arguments for k, v in kwargs.items(): self.__setattr__(k, v) def __eq__(self, other): if isinstance(other, Rule): return other.protocol == self.protocol and \ other.in_interface == self.in_interface and \ other.out_interface == self.out_interface and \ other.source == self.source and \ other.destination == self.destination and \ other.goto == self.goto and \ other.jump == self.jump and \ other.matches == self.matches else: return NotImplemented def __ne__(self, other): result = self.__eq__(other) if result is NotImplemented: return result return not result def __setattr__(self, name, value): if name == 'source' or name == 'destination': # produce "canonical" form of a source / destination # FIXME: we need to handle arbitrary netmasks here if value is not None and value.endswith('/32'): value = value[:-3] elif name == 'goto' or name == 'jump': if value is not None and not isinstance(value, Target): value = Target(value) elif name == 'matches': if not isinstance(value, list): raise Exception("matches attribute requires a list") self.__dict__[name] = value def find(self, rules): """Convenience method that finds the current Rule in a list. """ for rule in rules: if self == rule: return rule return None def log(self, level, prefix = ''): """Writes the contents of the Rule to the logging system. """ logging.log(level, "%sin interface: %s", prefix, self.in_interface) logging.log(level, "%sout interface: %s", prefix, self.out_interface) logging.log(level, "%ssource: %s", prefix, self.source) logging.log(level, "%sdestination: %s", prefix, self.destination) logging.log(level, "%smatches:", prefix) for match in self.matches: match.log(level, prefix + ' ') if self.jump: logging.log(level, "%sjump:", prefix) self.jump.log(level, prefix + ' ') def specbits(self): """Returns the array of arguments that would be given to iptables for the current Rule. """ def host_bits(opt, optval): # handle the case where this is a negated value m = re.match(r'^!\s*(.*)', optval) if m: return ['!', opt, m.group(1)] else: return [opt, optval] bits = [] if self.protocol: bits.extend(host_bits('-p', self.protocol)) if self.in_interface: bits.extend(host_bits('-i', self.in_interface)) if self.out_interface: bits.extend(host_bits('-o', self.out_interface)) if self.source: bits.extend(host_bits('-s', self.source)) if self.destination: bits.extend(host_bits('-d', self.destination)) for mod in self.matches: bits.extend(['-m', mod.name()]) bits.extend(mod.specbits()) if self.goto: bits.extend(['-g', self.goto.name()]) bits.extend(self.goto.specbits()) elif self.jump: bits.extend(['-j', self.jump.name()]) bits.extend(self.jump.specbits()) return bits python-netfilter-0.6.3/netfilter/table.py000066400000000000000000000132021261217331700204710ustar00rootroot00000000000000# -*- coding: utf-8 -*- # # python-netfilter - Python modules for manipulating netfilter rules # Copyright (C) 2007-2012 Bolloré Telecom # Copyright (C) 2013-2015 Jeremy Lainé # # 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 . # import os import re import subprocess import netfilter.parser class IptablesError(Exception): def __init__(self, command, message): self.command = command self.message = message def __str__(self): return "command: %s\nmessage: %s" % (self.command, self.message) class Table: """The Table class represents a netfilter table (IPv4 or IPv6). """ __iptables_wait_option = None def __init__(self, name, auto_commit = True, ipv6 = False): """Constructs a new netfilter Table. If auto_commit is true, commands are executed immediately, otherwise they are buffered and you need to call the commit() method to execute them. If ipv6 is true then ip6tables and ip6tables-save are used instead of iptables and iptables-save. """ self.auto_commit = auto_commit self.__name = name self.__buffer = [] if ipv6: self.__iptables = 'ip6tables' self.__iptables_save = 'ip6tables-save' else: self.__iptables = 'iptables' self.__iptables_save = 'iptables-save' def create_chain(self, chainname): """Creates the specified user-defined chain. """ self.__run_iptables(['-N', chainname]) def delete_chain(self, chainname=None): """Attempts to delete the specified user-defined chain (all the chains in the table if none is given). """ args = ['-X'] if chainname: args.append(chainname) self.__run_iptables(args) def flush_chain(self, chainname=None): """Flushes the specified chain (all the chains in the table if none is given). This is equivalent to deleting all the rules one by one. """ args = ['-F'] if chainname: args.append(chainname) self.__run_iptables(args) def list_chains(self): """Returns a list of strings representing the chains in the Table. """ return self.__get_chains().keys() def rename_chain(self, old_chain_name, new_chain_name): """Renames the specified user-defined chain. """ self.__run_iptables(['-E', old_chain_name, new_chain_name]) def get_policy(self, chainname): """Gets the policy for the specified built-in chain. """ return self.__get_chains()[chainname]['policy'] def set_policy(self, chainname, policy): """Sets the policy for the specified built-in chain. """ self.__run_iptables(['-P', chainname, policy]) def append_rule(self, chainname, rule): """Appends a Rule to the specified chain. """ self.__run_iptables(['-A', chainname] + rule.specbits()) def delete_rule(self, chainname, rule): """Deletes a Rule from the specified chain. """ self.__run_iptables(['-D', chainname] + rule.specbits()) def prepend_rule(self, chainname, rule): """Prepends a Rule to the specified chain. """ self.__run_iptables(['-I', chainname, '1'] + rule.specbits()) def list_rules(self, chainname): """Returns a list of Rules in the specified chain. """ data = self.__run([self.__iptables_save, '-t', self.__name, '-c']) return netfilter.parser.parse_rules(data, chainname) def commit(self): """Commits any buffered commands. This is only useful if auto_commit is False. """ while len(self.__buffer) > 0: self.__run(self.__buffer.pop(0)) def get_buffer(self): """Returns the command buffer. This is only useful if auto_commit is False. """ return self.__buffer def __get_chains(self): data = self.__run([self.__iptables_save, '-t', self.__name, '-c']) return netfilter.parser.parse_chains(data) def __run_iptables(self, args): if Table.__iptables_wait_option is None: # check whether iptables supports --wait try: self.__run([self.__iptables, '-L', '-n', '--wait']) Table.__iptables_wait_option = ['--wait'] except: Table.__iptables_wait_option = [] cmd = [self.__iptables] + Table.__iptables_wait_option + ['-t', self.__name] + args if self.auto_commit: self.__run(cmd) else: self.__buffer.append(cmd) def __run(self, cmd): p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, close_fds=True) out, err = p.communicate() status = p.wait() # check exit status if not os.WIFEXITED(status) or os.WEXITSTATUS(status): if not re.match(r'(iptables|ip6tables): Chain already exists', err): raise IptablesError(cmd, err) return out python-netfilter-0.6.3/setup.py000077500000000000000000000017161261217331700165600ustar00rootroot00000000000000#!/usr/bin/env python from setuptools import setup setup( name='netfilter', version='0.6.3', description='Python modules for manipulating netfilter rules', url='https://github.com/jlaine/python-netfilter', author='Jeremy Laine', author_email='jeremy.laine@m4x.org', license='GPLv3+', packages=['netfilter'], classifiers=[ 'Development Status :: 5 - Production/Stable', 'Intended Audience :: Developers', 'Intended Audience :: System Administrators', 'License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)', 'Operating System :: POSIX :: Linux', 'Programming Language :: Python', 'Programming Language :: Python :: 2', 'Programming Language :: Python :: 3', 'Topic :: Software Development :: Libraries', 'Topic :: System :: Networking :: Firewalls', 'Topic :: System :: Systems Administration', ], test_suite='tests', ) python-netfilter-0.6.3/tests/000077500000000000000000000000001261217331700162005ustar00rootroot00000000000000python-netfilter-0.6.3/tests/__init__.py000066400000000000000000000000001261217331700202770ustar00rootroot00000000000000python-netfilter-0.6.3/tests/test_netfilter.py000066400000000000000000000403231261217331700216070ustar00rootroot00000000000000# -*- coding: utf-8 -*- # # python-netfilter - Python modules for manipulating netfilter rules # Copyright (C) 2007-2012 Bolloré Telecom # Copyright (C) 2013 Jeremy Lainé # # 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 . # import unittest import logging import netfilter.table from netfilter.rule import Rule,Target,Match import netfilter.parser iptables_data = """# Generated by iptables-save v1.4.8 on Wed Sep 19 11:07:12 2012 *filter :INPUT DROP [556:75796] :FORWARD DROP [204:11510] :OUTPUT ACCEPT [1884:214582] :firewall_forward_filter - [0:0] :firewall_input_filter - [0:0] [7480114:987402857] -A INPUT -j firewall_input_filter [759445591:598252573508] -A FORWARD -j firewall_forward_filter [3323456:179228827] -A firewall_forward_filter -p tcp -m state --state NEW -m multiport --dports 22,80,443 -j ULOG --ulog-prefix "FORWARD" --ulog-cprange 100 --ulog-qthreshold 10 [112148:127429710] -A firewall_input_filter -i lo -j ACCEPT [4830789:639904091] -A firewall_input_filter -m state --state RELATED,ESTABLISHED -j ACCEPT [7964:372765] -A firewall_input_filter -p icmp -j ACCEPT [215:12972] -A firewall_input_filter -p tcp -m state --state NEW -m multiport --dports 22 -j ULOG --ulog-prefix "INPUT" --ulog-cprange 100 --ulog-qthreshold 10 [215:12972] -A firewall_input_filter -p tcp -m multiport --dports 22 -j ACCEPT [935044:68004850] -A firewall_input_filter -i eth1.161 -p udp -m multiport --dports 53,67 -j ACCEPT [216374:11435810] -A firewall_input_filter -i eth1.161 -p tcp -m multiport --dports 8089,8090 -j ACCEPT [141:9420] -A firewall_input_filter -i eth1.161 -p tcp -m multiport --dports 5222,7777,8080 -j ACCEPT [652708:44603726] -A firewall_input_filter -i eth1.171 -p udp -m multiport --dports 53,67 -j ACCEPT [82187:4331634] -A firewall_input_filter -i eth1.171 -p tcp -m multiport --dports 8089,8090 -j ACCEPT [125:9171] -A firewall_input_filter -i eth1.171 -p tcp -m multiport --dports 5222,7777,8080 -j ACCEPT COMMIT # Completed on Wed Sep 19 11:07:13 2012 """ class ParserTestCase(unittest.TestCase): def testSplitWords(self): self.assertEqual(netfilter.parser.split_words('a b c'), ['a', 'b', 'c']) self.assertEqual(netfilter.parser.split_words('a\tb c'), ['a', 'b', 'c']) def testSplitWordsQuoted(self): line = 'a "some text" b' self.assertEqual(netfilter.parser.split_words(line), ['a', 'some text', 'b']) def testParseChains(self): chains = netfilter.parser.parse_chains(iptables_data) self.assertEquals(chains.keys(), ['INPUT', 'FORWARD', 'OUTPUT', 'firewall_forward_filter', 'firewall_input_filter']) self.assertEquals(chains['INPUT']['policy'], 'DROP') self.assertEquals(chains['INPUT']['bytes'], 75796) self.assertEquals(chains['INPUT']['packets'], 556) self.assertEquals(chains['FORWARD']['policy'], 'DROP') self.assertEquals(chains['FORWARD']['bytes'], 11510) self.assertEquals(chains['FORWARD']['packets'], 204) self.assertEquals(chains['OUTPUT']['policy'], 'ACCEPT') self.assertEquals(chains['OUTPUT']['bytes'], 214582) self.assertEquals(chains['OUTPUT']['packets'], 1884) def testParseRules(self): rules = netfilter.parser.parse_rules(iptables_data, 'INPUT') self.assertEquals(len(rules), 1) self.assertEquals(rules[0].jump.name(), 'firewall_input_filter') rules = netfilter.parser.parse_rules(iptables_data, 'FORWARD') self.assertEquals(len(rules), 1) self.assertEquals(rules[0].jump.name(), 'firewall_forward_filter') rules = netfilter.parser.parse_rules(iptables_data, 'OUTPUT') self.assertEquals(rules, []) class TargetTestCase(unittest.TestCase): def testInit(self): target = Target('ACCEPT') self.assertEqual(target.name(), 'ACCEPT') self.assertEqual(target.options(), {}) def testInitOptions(self): target = Target('REDIRECT', '--wiz bang --foo bar') self.assertEqual(target.name(), 'REDIRECT') self.assertEqual(target.options(), {'foo': ['bar'], 'wiz': ['bang']}) def testEqual(self): target1 = Target('ACCEPT', '--foo bar') target2 = Target('ACCEPT', '--foo bar') self.assertEqual(target1 == target2, True) self.assertEqual(target1 != target2, False) def testEqualOutOfOrder(self): target1 = Target('ACCEPT', '--foo bar --wiz bang') target2 = Target('ACCEPT', '--wiz bang --foo bar') self.assertEqual(target1 == target2, True) self.assertEqual(target1 != target2, False) def testNotEqualName(self): target1 = Target('ACCEPT', '--foo bar') target2 = Target('ACCEPT2', '--foo bar') self.assertEqual(target1 == target2, False) self.assertEqual(target1 != target2, True) def testNotEqualOptions(self): target1 = Target('ACCEPT') target2 = Target('ACCEPT', '--foo bar') self.assertEqual(target1 == target2, False) self.assertEqual(target1 != target2, True) class MatchTestCase(unittest.TestCase): def testRewriteSourcePort(self): match = Match('tcp', '--source-port 1234') self.assertEqual(match.options(), {'sport': ['1234']}) def testRewriteSourcePorts(self): match = Match('multiport', '--source-ports 1,2,3') self.assertEqual(match.options(), {'sports': ['1,2,3']}) def testRewriteDestPorts(self): match = Match('tcp', '--destination-port 1234') self.assertEqual(match.options(), {'dport': ['1234']}) def testRewriteDestPorts(self): match = Match('multiport', '--destination-ports 1,2,3') self.assertEqual(match.options(), {'dports': ['1,2,3']}) class RuleTestCase(unittest.TestCase): def testInit(self): rule = Rule(jump=Target('ACCEPT')) self.assertEqual(rule.protocol, None) self.assertEqual(rule.in_interface, None) self.assertEqual(rule.out_interface, None) self.assertEqual(rule.source, None) self.assertEqual(rule.destination, None) self.assertEqual(rule.jump.name(), 'ACCEPT') self.assertEqual(rule.jump.options(), {}) self.assertEqual(rule.specbits(), ['-j', 'ACCEPT']) def testSource(self): rule = Rule(source='192.168.1.2', jump='ACCEPT') self.assertEqual(rule.protocol, None) self.assertEqual(rule.in_interface, None) self.assertEqual(rule.out_interface, None) self.assertEqual(rule.source, '192.168.1.2') self.assertEqual(rule.destination, None) self.assertEqual(rule.jump.name(), 'ACCEPT') self.assertEqual(rule.jump.options(), {}) self.assertEqual(rule.specbits(), ['-s', '192.168.1.2', '-j', 'ACCEPT']) def testSourceNegated(self): rule = Rule(source='! 192.168.1.2', jump='ACCEPT') self.assertEqual(rule.protocol, None) self.assertEqual(rule.in_interface, None) self.assertEqual(rule.out_interface, None) self.assertEqual(rule.source, '! 192.168.1.2') self.assertEqual(rule.destination, None) self.assertEqual(rule.jump.name(), 'ACCEPT') self.assertEqual(rule.jump.options(), {}) self.assertEqual(rule.specbits(), ['!', '-s', '192.168.1.2', '-j', 'ACCEPT']) def testDestination(self): rule = Rule(destination='192.168.1.3', jump='REJECT') self.assertEqual(rule.protocol, None) self.assertEqual(rule.in_interface, None) self.assertEqual(rule.out_interface, None) self.assertEqual(rule.source, None) self.assertEqual(rule.destination, '192.168.1.3') self.assertEqual(rule.jump.name(), 'REJECT') self.assertEqual(rule.jump.options(), {}) self.assertEqual(rule.specbits(), ['-d', '192.168.1.3', '-j', 'REJECT']) def testDestinationNegated(self): rule = Rule(destination='! 192.168.1.3', jump='REJECT') self.assertEqual(rule.protocol, None) self.assertEqual(rule.in_interface, None) self.assertEqual(rule.out_interface, None) self.assertEqual(rule.source, None) self.assertEqual(rule.destination, '! 192.168.1.3') self.assertEqual(rule.jump.name(), 'REJECT') self.assertEqual(rule.jump.options(), {}) self.assertEqual(rule.specbits(), ['!', '-d', '192.168.1.3', '-j', 'REJECT']) def testSourceDestinationProtocol(self): rule = Rule(source='192.168.1.2', destination='192.168.1.3', protocol='tcp', jump='DROP') self.assertEqual(rule.protocol, 'tcp') self.assertEqual(rule.in_interface, None) self.assertEqual(rule.out_interface, None) self.assertEqual(rule.source, '192.168.1.2') self.assertEqual(rule.destination, '192.168.1.3') self.assertEqual(rule.jump.name(), 'DROP') self.assertEqual(rule.jump.options(), {}) self.assertEqual(rule.specbits(), ['-p', 'tcp', '-s', '192.168.1.2', '-d', '192.168.1.3', '-j', 'DROP']) def testInterfaces(self): rule = Rule(in_interface='eth1', out_interface='eth2', jump='REJECT') self.assertEqual(rule.protocol, None) self.assertEqual(rule.in_interface, 'eth1') self.assertEqual(rule.out_interface, 'eth2') self.assertEqual(rule.source, None) self.assertEqual(rule.destination, None) self.assertEqual(rule.specbits(), ['-i', 'eth1', '-o', 'eth2', '-j', 'REJECT']) def testInterfacesNegated(self): rule = Rule(in_interface='!eth1', out_interface='!eth2', jump='REJECT') self.assertEqual(rule.protocol, None) self.assertEqual(rule.in_interface, '!eth1') self.assertEqual(rule.out_interface, '!eth2') self.assertEqual(rule.source, None) self.assertEqual(rule.destination, None) self.assertEqual(rule.specbits(), ['!', '-i', 'eth1', '!', '-o', 'eth2', '-j', 'REJECT']) def testTargetLog(self): rule = Rule(jump=Target('LOG', '--log-prefix "ICMP accepted : " --log-level 4')) self.assertEqual(rule.specbits(), ['-j', 'LOG', '--log-level', '4', '--log-prefix', 'ICMP accepted : ']) def testMatchMark(self): rule = Rule(jump='ACCEPT') rule.matches.append(Match('mark', '--mark 0x64')) self.assertEqual(rule.specbits(), ['-m', 'mark', '--mark', '0x64', '-j', 'ACCEPT']) def testMatchMultiportDports(self): rule = Rule(jump='ACCEPT') rule.matches.append(Match('multiport', '--dports 20,21,22,80,25,1720')) self.assertEqual(rule.specbits(), ['-m', 'multiport', '--dports', '20,21,22,80,25,1720', '-j', 'ACCEPT']) def testMatchState(self): rule = Rule(jump='ACCEPT') rule.matches.append(Match('state', '--state ESTABLISHED,RELATED')) self.assertEqual(rule.specbits(), ['-m', 'state', '--state', 'ESTABLISHED,RELATED', '-j', 'ACCEPT']) def testMatchTcpFlags(self): rule = Rule(protocol='tcp', jump='ACCEPT') rule.matches.append(Match('tcp', '--tcp-flags ACK,SYN ACK')) self.assertEqual(rule.specbits(), ['-p', 'tcp', '-m', 'tcp', '--tcp-flags', 'ACK,SYN', 'ACK', '-j', 'ACCEPT']) def testMatchTcpNotFlags(self): rule = Rule(protocol='tcp', jump='ACCEPT') rule.matches.append(Match('tcp', '--tcp-flags ! ACK,SYN ACK')) self.assertEqual(rule.specbits(), ['-p', 'tcp', '-m', 'tcp', '--tcp-flags', '!', 'ACK,SYN', 'ACK', '-j', 'ACCEPT']) def testMatchTcpDport(self): rule = Rule(protocol='tcp', jump='ACCEPT') rule.matches.append(Match('tcp', '--dport 80')) self.assertEqual(rule.specbits(), ['-p', 'tcp', '-m', 'tcp', '--dport', '80', '-j', 'ACCEPT']) def testMatchTcpSport(self): rule = Rule(protocol='tcp', jump='ACCEPT') rule.matches.append(Match('tcp', '--sport 1234')) self.assertEqual(rule.specbits(), ['-p', 'tcp', '-m', 'tcp', '--sport', '1234', '-j', 'ACCEPT']) def testMatchTos(self): rule = Rule(jump='ACCEPT') rule.matches.append(Match('tos', '--tos 0x10')) self.assertEqual(rule.specbits(), ['-m', 'tos', '--tos', '0x10', '-j', 'ACCEPT']) class ParseRuleTestCase(unittest.TestCase): def testEmpty(self): rule = netfilter.parser.parse_rule('') self.assertEqual(rule, Rule()) self.assertEqual(rule.specbits(), []) def testGoto(self): rule = netfilter.parser.parse_rule('-g some_rule') self.assertEqual(rule, Rule(goto='some_rule')) self.assertEqual(rule.specbits(), ['-g', 'some_rule']) def testJump(self): rule = netfilter.parser.parse_rule('-j REJECT') self.assertEqual(rule, Rule(jump='REJECT')) self.assertEqual(rule.specbits(), ['-j', 'REJECT']) def testProtocol(self): rule = netfilter.parser.parse_rule('-p tcp') self.assertEqual(rule, Rule(protocol='tcp')) self.assertEqual(rule.specbits(), ['-p', 'tcp']) def testMatch(self): rule = netfilter.parser.parse_rule('-m state --state ESTABLISHED,RELATED') self.assertEqual(rule, Rule( matches=[Match('state', '--state ESTABLISHED,RELATED')])) self.assertEqual(rule.specbits(), ['-m', 'state', '--state', 'ESTABLISHED,RELATED']) def testSourceNegated(self): # iptables < 1.4.3 rule = netfilter.parser.parse_rule('-s ! 10.1.0.0/20 -j LOG --log-prefix "Martians "') self.assertEqual(rule, Rule(source='! 10.1.0.0/20',jump=Target('LOG', '--log-prefix "Martians "'))) # iptables >= 1.4.3 rule = netfilter.parser.parse_rule('! -s 10.1.0.0/20 -j LOG --log-prefix "Martians "') self.assertEqual(rule, Rule(source='! 10.1.0.0/20',jump=Target('LOG', '--log-prefix "Martians "'))) def testDestinationNegated(self): # iptables < 1.4.3 rule = netfilter.parser.parse_rule('-d ! 10.1.0.0/20 -j LOG --log-prefix "Martians "') self.assertEqual(rule, Rule(destination='! 10.1.0.0/20',jump=Target('LOG', '--log-prefix "Martians "'))) # iptables >= 1.4.3 rule = netfilter.parser.parse_rule('! -d 10.1.0.0/20 -j LOG --log-prefix "Martians "') self.assertEqual(rule, Rule(destination='! 10.1.0.0/20',jump=Target('LOG', '--log-prefix "Martians "'))) def testInterfacesNegated(self): # iptables < 1.4.3 rule = netfilter.parser.parse_rule('-i ! eth0 -j LOG --log-prefix "Martians "') self.assertEqual(rule, Rule(in_interface='! eth0',jump=Target('LOG', '--log-prefix "Martians "'))) rule = netfilter.parser.parse_rule('-o ! eth0 -j LOG --log-prefix "Martians "') self.assertEqual(rule, Rule(out_interface='! eth0',jump=Target('LOG', '--log-prefix "Martians "'))) # iptables >= 1.4.3 rule = netfilter.parser.parse_rule('! -i eth0 -j LOG --log-prefix "Martians "') self.assertEqual(rule, Rule(in_interface='! eth0',jump=Target('LOG', '--log-prefix "Martians "'))) rule = netfilter.parser.parse_rule('! -o eth0 -j LOG --log-prefix "Martians "') self.assertEqual(rule, Rule(out_interface='! eth0',jump=Target('LOG', '--log-prefix "Martians "'))) def testProtocolNegated(self): # iptables < 1.4.3 rule = netfilter.parser.parse_rule('-p ! tcp -j LOG --log-prefix "Martians "') self.assertEqual(rule, Rule(protocol='! tcp',jump=Target('LOG', '--log-prefix "Martians "'))) # iptables >= 1.4.3 rule = netfilter.parser.parse_rule('! -p tcp -j LOG --log-prefix "Martians "') self.assertEqual(rule, Rule(protocol='! tcp',jump=Target('LOG', '--log-prefix "Martians "'))) class BufferedTestCase(unittest.TestCase): def testJump(self): table = netfilter.table.Table('test_table', False) table.append_rule('test_chain', Rule(jump='ACCEPT')) buffer = table.get_buffer() self.assertEqual(buffer, [['iptables', '-t', 'test_table', '-A', 'test_chain', '-j', 'ACCEPT']]) if __name__ == '__main__': unittest.main() python-netfilter-0.6.3/tests/test_netfilter_root.off000066400000000000000000000100161261217331700227700ustar00rootroot00000000000000# -*- coding: utf-8 -*- # # python-netfilter - Python modules for manipulating netfilter rules # Copyright (C) 2007-2012 Bolloré Telecom # Copyright (C) 2013 Jeremy Lainé # # 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 . # import unittest import netfilter.table import netfilter.rule # THESE TESTS NEED TO BE RUN AS ROOT, RUN WITH CARE class TableManipulationTestCase(unittest.TestCase): def setUp(self, auto_commit = True): self.table = netfilter.table.Table('filter', auto_commit) self.chain = 'netfilter_test' self.table.create_chain(self.chain) self.table.flush_chain(self.chain) def tearDown(self): self.table.flush_chain(self.chain) self.table.delete_chain(self.chain) class BasicTableTestCase(TableManipulationTestCase): def testCreateFindDeleteChain(self): # check the chain has 0 rules rules = self.table.list_rules(self.chain) self.assertEqual(len(rules), 0) # append a rule and check the chain has 1 rule rule = netfilter.rule.Rule(source='192.168.1.2', destination='192.168.1.3', jump='ACCEPT') self.table.append_rule(self.chain, rule) rules = self.table.list_rules(self.chain) self.assertEqual(len(rules), 1) # lookup the rule we added rule2 = rule.find(rules) self.assertEqual(rule2.source, '192.168.1.2') self.assertEqual(rule2.destination, '192.168.1.3') self.assertEqual(rule2.jump, netfilter.rule.Target('ACCEPT')) # delete the rule and check the chain has 0 rules self.table.delete_rule(self.chain, rule) rules = self.table.list_rules(self.chain) self.assertEqual(len(rules), 0) def testCreateFlushChain(self): # check the chain has 0 rules rules = self.table.list_rules(self.chain) self.assertEqual(len(rules), 0) # append a rule and check the chain has 1 rule rule = netfilter.rule.Rule(source='192.168.1.2', destination='192.168.1.3', jump='ACCEPT') self.table.append_rule(self.chain, rule) rules = self.table.list_rules(self.chain) self.assertEqual(len(rules), 1) # empty the chain and check the chain has 0 rules self.table.flush_chain(self.chain) rules = self.table.list_rules(self.chain) self.assertEqual(len(rules), 0) def testRenameChain(self): new_chain = self.chain + '_new' # append a rule and check the chain has 1 rule rule = netfilter.rule.Rule(source='192.168.1.2', destination='192.168.1.3', jump='ACCEPT') self.table.append_rule(self.chain, rule) rules = self.table.list_rules(self.chain) self.assertEqual(len(rules), 1) # rename chain self.table.rename_chain(self.chain, new_chain) rules = self.table.list_rules(new_chain) self.assertEqual(len(rules), 1) # rename chain back self.table.rename_chain(new_chain, self.chain) rules = self.table.list_rules(self.chain) self.assertEqual(len(rules), 1) class BufferTestCase(TableManipulationTestCase): def setUp(self): TableManipulationTestCase.setUp(self, False) def testfoo(self): self.assertEqual(self.table.get_buffer(), [['iptables', '-t', 'filter', '-N', 'netfilter_test'], ['iptables', '-t', 'filter', '-F', 'netfilter_test']]) if __name__ == '__main__': unittest.main()