class BridgeDomain(object):
- def __init__(self):
- ## Ethernet frame which is send to pg0 interface and is forwarded to pg1
- self.payload_0_1 = (
- Ether(src='00:00:00:00:00:01', dst='00:00:00:00:00:02') /
- IP(src='1.2.3.4', dst='4.3.2.1') /
- UDP(sport=10000, dport=20000) /
- Raw('\xa5' * 100))
-
- ## Ethernet frame which is send to pg1 interface and is forwarded to pg0
- self.payload_1_0 = (
- Ether(src='00:00:00:00:00:02', dst='00:00:00:00:00:01') /
- IP(src='4.3.2.1', dst='1.2.3.4') /
- UDP(sport=20000, dport=10000) /
- Raw('\xa5' * 100))
-
- ## Test case must implement this method, so template known how to send
- # encapsulated frame.
+ """ Bridge domain abstraction """
+
+ @property
+ def frame_pg0_to_pg1(self):
+ """ Ethernet frame sent from pg0 and expected to arrive at pg1 """
+ return (Ether(src='00:00:00:00:00:01', dst='00:00:00:00:00:02') /
+ IP(src='1.2.3.4', dst='4.3.2.1') /
+ UDP(sport=10000, dport=20000) /
+ Raw('\xa5' * 100))
+
+ @property
+ def frame_pg1_to_pg0(self):
+ """ Ethernet frame sent from pg1 and expected to arrive at pg0 """
+ return (Ether(src='00:00:00:00:00:02', dst='00:00:00:00:00:01') /
+ IP(src='4.3.2.1', dst='1.2.3.4') /
+ UDP(sport=20000, dport=10000) /
+ Raw('\xa5' * 100))
+
@abstractmethod
def encapsulate(self, pkt):
+ """ Encapsulate packet """
pass
- ## Test case must implement this method, so template known how to get
- # original payload.
@abstractmethod
def decapsulate(self, pkt):
+ """ Decapsulate packet """
pass
- ## Test case must implement this method, so template known how if the
- # received frame is corectly encapsulated.
@abstractmethod
def check_encapsulation(self, pkt):
+ """ Verify the encapsulation """
pass
- ## On pg0 interface are encapsulated frames, on pg1 are testing frames
- # without encapsulation
def test_decap(self):
- ## Prepare Ethernet frame that will be send encapsulated.
- pkt_to_send = self.encapsulate(self.payload_0_1)
+ """ Decapsulation test
+ Send encapsulated frames from pg0
+ Verify receipt of decapsulated frames on pg1
+ """
+
+ encapsulated_pkt = self.encapsulate(self.frame_pg0_to_pg1)
- ## Add packet to list of packets.
- self.pg_add_stream(0, [pkt_to_send, ])
+ self.pg0.add_stream([encapsulated_pkt, ])
- ## Enable Packet Capture on both ports.
- self.pg_enable_capture([0, 1])
+ self.pg1.enable_capture()
- ## Start all streams
self.pg_start()
- ## Pick first received frame and check if is same as non-encapsulated
- # frame.
- out = self.pg_get_capture(1)
+ # Pick first received frame and check if it's the non-encapsulated frame
+ out = self.pg1.get_capture()
self.assertEqual(len(out), 1,
'Invalid number of packets on '
'output: {}'.format(len(out)))
pkt = out[0]
# TODO: add error messages
- self.assertEqual(pkt[Ether].src, self.payload_0_1[Ether].src)
- self.assertEqual(pkt[Ether].dst, self.payload_0_1[Ether].dst)
- self.assertEqual(pkt[IP].src, self.payload_0_1[IP].src)
- self.assertEqual(pkt[IP].dst, self.payload_0_1[IP].dst)
- self.assertEqual(pkt[UDP].sport, self.payload_0_1[UDP].sport)
- self.assertEqual(pkt[UDP].dport, self.payload_0_1[UDP].dport)
- self.assertEqual(pkt[Raw], self.payload_0_1[Raw])
-
- ## Send non-encapsulated Ethernet frame from pg1 interface and expect
- # encapsulated frame on pg0. On pg0 interface are encapsulated frames,
- # on pg1 are testing frames without encapsulation.
+ self.assertEqual(pkt[Ether].src, self.frame_pg0_to_pg1[Ether].src)
+ self.assertEqual(pkt[Ether].dst, self.frame_pg0_to_pg1[Ether].dst)
+ self.assertEqual(pkt[IP].src, self.frame_pg0_to_pg1[IP].src)
+ self.assertEqual(pkt[IP].dst, self.frame_pg0_to_pg1[IP].dst)
+ self.assertEqual(pkt[UDP].sport, self.frame_pg0_to_pg1[UDP].sport)
+ self.assertEqual(pkt[UDP].dport, self.frame_pg0_to_pg1[UDP].dport)
+ self.assertEqual(pkt[Raw], self.frame_pg0_to_pg1[Raw])
+
def test_encap(self):
- ## Create packet generator stream.
- self.pg_add_stream(1, [self.payload_1_0])
+ """ Encapsulation test
+ Send frames from pg1
+ Verify receipt of encapsulated frames on pg0
+ """
+ self.pg1.add_stream([self.frame_pg1_to_pg0])
- ## Enable Packet Capture on both ports.
- self.pg_enable_capture([0, 1])
+ self.pg0.enable_capture()
- ## Start all streams.
self.pg_start()
- ## Pick first received frame and check if is corectly encapsulated.
- out = self.pg_get_capture(0)
+ # Pick first received frame and check if it's corectly encapsulated.
+ out = self.pg0.get_capture()
self.assertEqual(len(out), 1,
'Invalid number of packets on '
'output: {}'.format(len(out)))
- rcvd = out[0]
- self.check_encapsulation(rcvd)
+ pkt = out[0]
+ self.check_encapsulation(pkt)
- ## Get original frame from received packet and check if is same as
- # sended frame.
- rcvd_payload = self.decapsulate(rcvd)
+ payload = self.decapsulate(pkt)
# TODO: add error messages
- self.assertEqual(rcvd_payload[Ether].src, self.payload_1_0[Ether].src)
- self.assertEqual(rcvd_payload[Ether].dst, self.payload_1_0[Ether].dst)
- self.assertEqual(rcvd_payload[IP].src, self.payload_1_0[IP].src)
- self.assertEqual(rcvd_payload[IP].dst, self.payload_1_0[IP].dst)
- self.assertEqual(rcvd_payload[UDP].sport, self.payload_1_0[UDP].sport)
- self.assertEqual(rcvd_payload[UDP].dport, self.payload_1_0[UDP].dport)
- self.assertEqual(rcvd_payload[Raw], self.payload_1_0[Raw])
+ self.assertEqual(payload[Ether].src, self.frame_pg1_to_pg0[Ether].src)
+ self.assertEqual(payload[Ether].dst, self.frame_pg1_to_pg0[Ether].dst)
+ self.assertEqual(payload[IP].src, self.frame_pg1_to_pg0[IP].src)
+ self.assertEqual(payload[IP].dst, self.frame_pg1_to_pg0[IP].dst)
+ self.assertEqual(payload[UDP].sport, self.frame_pg1_to_pg0[UDP].sport)
+ self.assertEqual(payload[UDP].dport, self.frame_pg1_to_pg0[UDP].dport)
+ self.assertEqual(payload[Raw], self.frame_pg1_to_pg0[Raw])
Code Review / vpp.git / blobdiff