commit 654be17e244713320f6d218f447de1a62546c6b3 Author: Arturo Filastò art@baculo.org Date: Thu Jun 14 01:24:36 2012 +0200

Add scapy protocol and example for it * Add example of writing a tcp connect scanner --- ooni/plugins/examplescapy.py | 49 +++++++++++++++++++++++++++++++++ ooni/plugins/tcpconnect.py | 62 ++++++++++++++++++++++++++++++++++++++++++ ooni/protocols/scapy.py | 49 +++++++++++++++++++++++++++++++++ 3 files changed, 160 insertions(+), 0 deletions(-)

diff --git a/ooni/plugins/examplescapy.py b/ooni/plugins/examplescapy.py new file mode 100644 index 0000000..aa6d81b --- /dev/null +++ b/ooni/plugins/examplescapy.py @@ -0,0 +1,49 @@ +import random +from zope.interface import implements +from twisted.python import usage +from twisted.plugin import IPlugin +from twisted.internet import protocol, defer +from ooni.plugoo.tests import ITest, OONITest +from ooni.plugoo.assets import Asset +from ooni import log +from ooni.protocols.scapy import ScapyTest + +from ooni.lib.txscapy import txsr, txsend + +class scapyArgs(usage.Options): + optParameters = [] + +class ExampleScapyTest(ScapyTest): + """ + An example of writing a scapy Test + """ + implements(IPlugin, ITest) + + shortName = "example_scapy" + description = "An example of a scapy test" + requirements = None + options = scapyArgs + blocking = False + + receive = True + pcapfile = 'example_scapy.pcap' + def initialize(self, reactor=None): + if not self.reactor: + from twisted.internet import reactor + self.reactor = reactor + + self.request = {} + self.response = {} + + def build_packets(self): + """ + Override this method to build scapy packets. + """ + from scapy.all import IP, TCP + return IP()/TCP() + + def load_assets(self): + return {} + +examplescapy = ExampleScapyTest(None, None, None) + diff --git a/ooni/plugins/tcpconnect.py b/ooni/plugins/tcpconnect.py new file mode 100644 index 0000000..75f32c1 --- /dev/null +++ b/ooni/plugins/tcpconnect.py @@ -0,0 +1,62 @@ +""" +This is a self genrated test created by scaffolding.py. +you will need to fill it up with all your necessities. +Safe hacking :). +""" +from zope.interface import implements +from twisted.python import usage +from twisted.plugin import IPlugin +from twisted.internet import reactor +from twisted.internet.protocol import Factory, Protocol +from twisted.internet.endpoints import TCP4ClientEndpoint + +from ooni.plugoo.tests import ITest, OONITest +from ooni.plugoo.assets import Asset +from ooni import log + +class tcpconnectArgs(usage.Options): + optParameters = [['blabla', 'a', None, 'Asset file'], + ['resume', 'r', 0, 'Resume at this index']] + +class tcpconnectTest(OONITest): + implements(IPlugin, ITest) + + shortName = "tcpconnect" + description = "tcpconnect" + requirements = None + options = tcpconnectArgs + blocking = False + + def experiment(self, args): + host, port = args['blabla'].split(':') + class DummyFactory(Factory): + def buildProtocol(self, addr): + return Protocol() + + def gotProtocol(p): + p.transport.loseConnection() + log.msg("Got a connection!") + log.msg(str(p)) + return {'result': True, 'target': [host, port]} + + def gotError(err): + log.msg("Had error :(") + log.msg(err) + return {'result': False, 'target': [host, port]} + + # What you return here gets handed as input to control + point = TCP4ClientEndpoint(reactor, host, int(port)) + d = point.connect(DummyFactory()) + d.addCallback(gotProtocol) + d.addErrback(gotError) + return d + + def load_assets(self): + if self.local_options: + return {'blabla': Asset(self.local_options['blabla'])} + else: + return {} + +# We need to instantiate it otherwise getPlugins does not detect it +# XXX Find a way to load plugins without instantiating them. +tcpconnect = tcpconnectTest(None, None, None) diff --git a/ooni/protocols/__init__.py b/ooni/protocols/__init__.py new file mode 100644 index 0000000..e69de29 diff --git a/ooni/protocols/scapy.py b/ooni/protocols/scapy.py new file mode 100644 index 0000000..ba2ae66 --- /dev/null +++ b/ooni/protocols/scapy.py @@ -0,0 +1,49 @@ +import random +from zope.interface import implements +from twisted.python import usage +from twisted.plugin import IPlugin +from twisted.internet import protocol, defer +from ooni.plugoo.tests import ITest, OONITest +from ooni.plugoo.assets import Asset +from ooni import log + +from ooni.lib.txscapy import txsr, txsend + +class ScapyTest(OONITest): + """ + A utility class for writing scapy driven OONI tests. + """ + + receive = True + pcapfile = 'scapytest.pcap' + def initialize(self, reactor=None): + + if not self.reactor: + from twisted.internet import reactor + self.reactor = reactor + + self.request = {} + self.response = {} + + def experiment(self, args): + log.msg("Running experiment") + if self.receive: + d = txsr(self.build_packets(), pcapfile=self.pcapfile) + else: + d = txsend(self.build_packets()) + def finished(data): + return data + + d.addCallback(finished) + return d + + def build_packets(self): + """ + Override this method to build scapy packets. + """ + from scapy.all import IP, TCP + return IP()/TCP() + + def load_assets(self): + return {} +