def test_received_ip_packet(self):
self.analyze_packets("h1", lambda: self.net.pingAll())
packet = Packet()
packet.ip_src = "192.168.0.1"
packet.ip_dst = "192.168.0.2"
self.assertReceivedPacket(packet, "Received ip packet")
packet1 = Packet()
packet1.ip_src = "192.168.0.254"
packet1.ip_dst = "192.168.0.2"
self.assertNotReceivedPacket(packet1, "Not received packet from unknown ip.")
def test_received_ip_packet(self):
self.analyze_packets("h1", lambda: self.net.pingAll())
packet = Packet()
packet.ip_src = "192.168.0.1"
packet.ip_dst = "192.168.0.2"
self.assertReceivedPacket(packet, "Received ip packet")
packet1 = Packet()
packet1.ip_src = "192.168.0.254"
packet1.ip_dst = "192.168.0.2"
self.assertNotReceivedPacket(packet1,
"Not received packet from unknown ip.")
def test_timestamps(self):
self.analyze_packets(["h1", "h3"], lambda: self.net.pingAll())
packet_1_to_2 = Packet()
packet_1_to_2.ip_src = "192.168.0.1"
packet_1_to_2.ip_dst = "192.168.0.2"
packet_3_to_4 = Packet()
packet_3_to_4.ip_src = "192.168.0.3"
packet_3_to_4.ip_dst = "192.168.0.4"
time_1_to_2 = self.get_all_packets(packet_1_to_2, "h1")[0].time_stamp
time_3_to_4 = self.get_all_packets(packet_3_to_4, "h3")[0].time_stamp
self.assertTrue(time_3_to_4 > time_1_to_2, "Timestamp ordering ok. Ping from h1 to h2 is sent first.")
def test_timestamps(self):
self.analyze_packets(["h1", "h3"], lambda: self.net.pingAll())
packet_1_to_2 = Packet()
packet_1_to_2.ip_src = "192.168.0.1"
packet_1_to_2.ip_dst = "192.168.0.2"
packet_3_to_4 = Packet()
packet_3_to_4.ip_src = "192.168.0.3"
packet_3_to_4.ip_dst = "192.168.0.4"
time_1_to_2 = self.get_all_packets(packet_1_to_2, "h1")[0].time_stamp
time_3_to_4 = self.get_all_packets(packet_3_to_4, "h3")[0].time_stamp
self.assertTrue(
time_3_to_4 > time_1_to_2,
"Timestamp ordering ok. Ping from h1 to h2 is sent first.")
def test_send_icmp(self):
icmp_cont = dpkt.icmp.ICMP.Echo()
icmp_cont.data = 'icmp echo'
icmp_cont.seq = random.randint(0, 65535)
icmp_cont.id = random.randint(0, 65535)
icmp_packet = dpkt.icmp.ICMP()
icmp_packet.type = dpkt.icmp.ICMP_ECHO
icmp_packet.data = icmp_cont
self.analyze_packets("h2", lambda: self.send_ip4_packet("h1", "192.168.0.2", dpkt.ip.IP_PROTO_ICMP, str(icmp_packet)))
packet = Packet()
packet.ip_src = "192.168.0.1"
packet.ip_dst = "192.168.0.2"
self.assertReceivedPacket(packet, "Received sent icmp packet", "h2")
def test_tcp(self):
# start netcat server
self.execCmd("h2", "nc -l 12345 &")
pid = self.net.get("h2").lastPid
# send packets
self.analyze_packets("h1", lambda: self.execCmd("h1", "echo 'TEST' | nc 192.168.0.2 12345"))
# stop netcat server
self.execCmd("h2", "kill " + str(pid))
# analyze packets
packet = Packet()
packet.ip_src = "192.168.0.1"
packet.ip_dst = "192.168.0.2"
packet.tcp_dst_port = 12345
self.assertReceivedPacket(packet, "TCP Packet Received")
def test_send_icmp(self):
icmp_cont = dpkt.icmp.ICMP.Echo()
icmp_cont.data = 'icmp echo'
icmp_cont.seq = random.randint(0, 65535)
icmp_cont.id = random.randint(0, 65535)
icmp_packet = dpkt.icmp.ICMP()
icmp_packet.type = dpkt.icmp.ICMP_ECHO
icmp_packet.data = icmp_cont
self.analyze_packets(
"h2", lambda: self.send_ip4_packet(
"h1", "192.168.0.2", dpkt.ip.IP_PROTO_ICMP, str(icmp_packet)))
packet = Packet()
packet.ip_src = "192.168.0.1"
packet.ip_dst = "192.168.0.2"
self.assertReceivedPacket(packet, "Received sent icmp packet", "h2")
def test_tcp(self):
# start netcat server
self.execCmd("h2", "nc -l 12345 &")
pid = self.net.get("h2").lastPid
# send packets
self.analyze_packets(
["h1", "h2"],
lambda: self.execCmd("h1", "echo 'TEST' | nc 192.168.0.2 12345"))
# stop netcat server
self.execCmd("h2", "kill " + str(pid))
packet = Packet()
packet.ip_src = "192.168.0.1"
packet.ip_dst = "192.168.0.2"
packet.tcp_dst_port = 12345
self.assertReceivedPacket(packet, "TCP Packet Received on h1", "h1")
self.assertReceivedPacket(packet, "TCP Packet Received on h2", "h2")