% Tests for Scapy's p0fv2 module. ~ p0f ############ ############ + Basic p0f module tests = Module loading load_module('p0fv2') = Fetch database ~ netaccess try: from urllib.request import urlopen except ImportError: from urllib2 import urlopen def _load_database(file): for i in range(10): try: with open(file, 'wb') as fd: fd.write(urlopen('https://raw.githubusercontent.com/p0f/p0f/4b4d1f384abebbb9b1b25b8f3c6df5ad7ab365f7/' + file).read()) break except: raise pass _load_database("p0f.fp") conf.p0f_base = "p0f.fp" _load_database("p0fa.fp") conf.p0fa_base = "p0fa.fp" _load_database("p0fr.fp") conf.p0fr_base = "p0fr.fp" _load_database("p0fo.fp") conf.p0fo_base = "p0fo.fp" p0f_load_knowledgebases() ############ ############ + Default tests = Test p0f ~ netaccess pkt = Ether(b'\x14\x0cv\x8f\xfe(\xd0P\x99V\xdd\xf9\x08\x00E\x00\x0045+@\x00\x80\x06\x00\x00\xc0\xa8\x00w(M\xe2\xf9\xda\xcb\x01\xbbcc\xdd\x1e\x00\x00\x00\x00\x80\x02\xfa\xf0\xcc\x8c\x00\x00\x02\x04\x05\xb4\x01\x03\x03\x08\x01\x01\x04\x02') assert p0f(pkt) == [('@Windows', 'XP/2000 (RFC1323+, w+, tstamp-)', 0)] = Test prnp0f ~ netaccess with ContextManagerCaptureOutput() as cmco: prnp0f(pkt) assert cmco.get_output() == '192.168.0.119:56011 - @Windows XP/2000 (RFC1323+, w+, tstamp-)\n -> 40.77.226.249:https (S) (distance 0)\n' ############ ############ + Tests for p0f_impersonate # XXX: a lot of pieces of p0f_impersonate don't have tests yet. = Impersonate when window size must be multiple of some integer sig = ('%467', 64, 1, 60, 'M*,W*', '.', 'Phony Sys', '1.0') pkt = p0f_impersonate(IP()/TCP(), signature=sig) assert pkt.payload.window % 467 == 0 = Handle unusual flags ("F") quirk sig = ('1024', 64, 0, 60, 'W*', 'F', 'Phony Sys', '1.0') pkt = p0f_impersonate(IP()/TCP(), signature=sig) assert (pkt.payload.flags & 40) in (8, 32, 40) = Use valid option values from original packet sig = ('S4', 64, 1, 60, 'M*,W*,T', '.', 'Phony Sys', '1.0') opts = [('MSS', 1400), ('WScale', 3), ('Timestamp', (97256, 0))] pkt = p0f_impersonate(IP()/TCP(options=opts), signature=sig) assert pkt.payload.options == opts = Use valid option values when multiples required sig = ('S4', 64, 1, 60, 'M%37,W%19', '.', 'Phony Sys', '1.0') opts = [('MSS', 37*15), ('WScale', 19*12)] pkt = p0f_impersonate(IP()/TCP(options=opts), signature=sig) assert pkt.payload.options == opts = Discard non-multiple option values when multiples required sig = ('S4', 64, 1, 60, 'M%37,W%19', '.', 'Phony Sys', '1.0') opts = [('MSS', 37*15 + 1), ('WScale', 19*12 + 1)] pkt = p0f_impersonate(IP()/TCP(options=opts), signature=sig) assert pkt.payload.options[0][1] % 37 == 0 assert pkt.payload.options[1][1] % 19 == 0 = Discard bad timestamp values sig = ('S4', 64, 1, 60, 'M*,T', '.', 'Phony Sys', '1.0') opts = [('Timestamp', (0, 1000))] pkt = p0f_impersonate(IP()/TCP(options=opts), signature=sig) # since option is "T" and not "T0": assert pkt.payload.options[1][1][0] > 0 # since T quirk is not present: assert pkt.payload.options[1][1][1] == 0 = Discard 2nd timestamp of 0 if "T" quirk is present sig = ('S4', 64, 1, 60, 'M*,T', 'T', 'Phony Sys', '1.0') opts = [('Timestamp', (54321, 0))] pkt = p0f_impersonate(IP()/TCP(options=opts), signature=sig) assert pkt.payload.options[1][1][1] > 0 + Clear temp files = Remove fp files def _rem(f): try: os.remove(f) except: pass _rem("p0f.fp") _rem("p0fa.fp") _rem("p0fr.fp") _rem("p0fo.fp")