def testMultipleSameProtos(self):
proto = ethernet.EthernetProtocol()
p1 = MyProtocol([
('foobar', {
'partial': 0,
'dest': "123456",
'source': "987654",
'protocol': 0x0800,
}),
])
p2 = MyProtocol([
('foobar', {
'partial': 0,
'dest': "123456",
'source': "987654",
'protocol': 0x0800,
}),
])
proto.addProto(0x0800, p1)
proto.addProto(0x0800, p2)
proto.datagramReceived("123456987654\x08\x00foobar", partial=0)
assert not p1.expecting, \
'Should not expect any more packets, but still want %r' % p1.expecting
assert not p2.expecting, \
'Should not expect any more packets, but still want %r' % p2.expecting
def testWrongProtoNotSeen(self):
proto = ethernet.EthernetProtocol()
p1 = MyProtocol([])
proto.addProto(0x0801, p1)
proto.datagramReceived("123456987654\x08\x00foobar", partial=0)
proto.datagramReceived("012345abcdef\x08\x00quux", partial=1)
def testMultiplePackets(self):
proto = ethernet.EthernetProtocol()
p1 = MyProtocol([
(
b"foobar",
{
"partial": 0,
"dest": b"123456",
"source": b"987654",
"protocol": 0x0800,
},
),
(
b"quux",
{
"partial": 1,
"dest": b"012345",
"source": b"abcdef",
"protocol": 0x0800,
},
),
])
proto.addProto(0x0800, p1)
proto.datagramReceived(b"123456987654\x08\x00foobar", partial=0)
proto.datagramReceived(b"012345abcdef\x08\x00quux", partial=1)
assert not p1.expecting, (
"Should not expect any more packets, but still want %r" %
p1.expecting)
def testMultiplePackets(self):
proto = ethernet.EthernetProtocol()
p1 = MyProtocol([
(b'foobar', {
'partial': 0,
'dest': b"123456",
'source': b"987654",
'protocol': 0x0800,
}),
(b'quux', {
'partial': 1,
'dest': b"012345",
'source': b"abcdef",
'protocol': 0x0800,
}),
])
proto.addProto(0x0800, p1)
proto.datagramReceived(b"123456987654\x08\x00foobar",
partial=0)
proto.datagramReceived(b"012345abcdef\x08\x00quux",
partial=1)
assert not p1.expecting, \
'Should not expect any more packets, but still want %r' % p1.expecting
def testAddingBadProtos_WrongLevel(self):
"""Adding a wrong level protocol raises an exception."""
e = ethernet.EthernetProtocol()
try:
e.addProto(42, "silliness")
except components.CannotAdapt:
pass
else:
raise AssertionError, 'addProto must raise an exception for bad protocols'
def testAddingBadProtos_TooBig2(self):
"""Adding a protocol with a number >=2**16 raises an exception."""
e = ethernet.EthernetProtocol()
try:
e.addProto(2**16 + 1, MyProtocol([]))
except TypeError, e:
if e.args == ('Added protocol must fit in 16 bits', ):
pass
else:
raise
def testAddingBadProtos_TooSmall(self):
"""Adding a protocol with a negative number raises an exception."""
e = ethernet.EthernetProtocol()
try:
e.addProto(-1, MyProtocol([]))
except TypeError, e:
if e.args == ('Added protocol must be positive or zero', ):
pass
else:
raise
def testAddingBadProtos_TooBig(self):
"""Adding a protocol with a number >=2**16 raises an exception."""
e = ethernet.EthernetProtocol()
try:
e.addProto(2**16, MyProtocol([]))
except TypeError as e:
if e.args == ('Added protocol must fit in 16 bits',):
pass
else:
raise
else:
raise AssertionError('addProto must raise an exception for bad protocols')
def testAddingBadProtos_TooSmall(self):
"""Adding a protocol with a negative number raises an exception."""
e = ethernet.EthernetProtocol()
try:
e.addProto(-1, MyProtocol([]))
except TypeError as e:
if e.args == ("Added protocol must be positive or zero", ):
pass
else:
raise
else:
raise AssertionError(
"addProto must raise an exception for bad protocols")
def testDemuxing(self):
proto = ethernet.EthernetProtocol()
p1 = MyProtocol([
('foobar', {
'partial': 0,
'dest': "123456",
'source': "987654",
'protocol': 0x0800,
}),
('quux', {
'partial': 1,
'dest': "012345",
'source': "abcdef",
'protocol': 0x0800,
}),
])
proto.addProto(0x0800, p1)
p2 = MyProtocol([
('quux', {
'partial': 1,
'dest': "012345",
'source': "abcdef",
'protocol': 0x0806,
}),
('foobar', {
'partial': 0,
'dest': "123456",
'source': "987654",
'protocol': 0x0806,
}),
])
proto.addProto(0x0806, p2)
proto.datagramReceived("123456987654\x08\x00foobar", partial=0)
proto.datagramReceived("012345abcdef\x08\x06quux", partial=1)
proto.datagramReceived("123456987654\x08\x06foobar", partial=0)
proto.datagramReceived("012345abcdef\x08\x00quux", partial=1)
assert not p1.expecting, \
'Should not expect any more packets, but still want %r' % p1.expecting
assert not p2.expecting, \
'Should not expect any more packets, but still want %r' % p2.expecting
def testMultipleSameProtos(self):
proto = ethernet.EthernetProtocol()
p1 = MyProtocol([
(
b"foobar",
{
"partial": 0,
"dest": b"123456",
"source": b"987654",
"protocol": 0x0800,
},
),
])
p2 = MyProtocol([
(
b"foobar",
{
"partial": 0,
"dest": b"123456",
"source": b"987654",
"protocol": 0x0800,
},
),
])
proto.addProto(0x0800, p1)
proto.addProto(0x0800, p2)
proto.datagramReceived(b"123456987654\x08\x00foobar", partial=0)
assert (
not p1.expecting
), "Should not expect any more packets, " "but still want {!r}".format(
p1.expecting)
assert (
not p2.expecting
), "Should not expect any more packets," " but still want {!r}".format(
p2.expecting)
# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.
from twisted.internet import reactor, protocol
from twisted.pair import ethernet, rawudp, ip
from twisted.pair import tuntap
class MyProto(protocol.DatagramProtocol):
def datagramReceived(self, *a, **kw):
print a, kw
p_udp = rawudp.RawUDPProtocol()
p_udp.addProto(42, MyProto())
p_ip = ip.IPProtocol()
p_ip.addProto(17, p_udp)
p_eth = ethernet.EthernetProtocol()
p_eth.addProto(0x800, p_ip)
port = tuntap.TuntapPort(interface='tap0', proto=p_eth, reactor=reactor)
port.startListening()
reactor.run()
