def test_ARP_packet_set_target_mac_addr():
raw_frame = b'"3DUfw\x00\x11"3DU\x08\x06\x00\x01\x08\x00\x06\x04\x00\x01\x00\x11"3DU\n\x14\x01\x01\x00\x00\x00\x00\x00\x00\n\x14\x01\x02'
eth = ethernet.Ethernet_Frame(raw_frame)
arp_packet = arp.ARP_packet(eth.data)
arp_packet.target_mac_addr = b'\x55\x66\x77\x88\x99\xaa'
assert arp_packet.packet.hex(
) == '00010800060400010011223344550a1401015566778899aa0a140102'
def test_ARP_packet_set_op():
raw_frame = b'"3DUfw\x00\x11"3DU\x08\x06\x00\x01\x08\x00\x06\x04\x00\x01\x00\x11"3DU\n\x14\x01\x01\x00\x00\x00\x00\x00\x00\n\x14\x01\x02'
eth = ethernet.Ethernet_Frame(raw_frame)
arp_packet = arp.ARP_packet(eth.data)
arp_packet.op = b'\x05\x06'
assert arp_packet.packet.hex(
) == '00010800060405060011223344550a1401010000000000000a140102'
def test_ARP_packet_set_sender_ip_addr():
raw_frame = b'"3DUfw\x00\x11"3DU\x08\x06\x00\x01\x08\x00\x06\x04\x00\x01\x00\x11"3DU\n\x14\x01\x01\x00\x00\x00\x00\x00\x00\n\x14\x01\x02'
eth = ethernet.Ethernet_Frame(raw_frame)
arp_packet = arp.ARP_packet(eth.data)
arp_packet.sender_ip_addr = b'\x0b\x16\x01\x02'
assert arp_packet.packet.hex(
) == '00010800060400010011223344550b1601020000000000000a140102'
def test_ARP_packet_set_prot_type():
raw_frame = b'"3DUfw\x00\x11"3DU\x08\x06\x00\x01\x08\x00\x06\x04\x00\x01\x00\x11"3DU\n\x14\x01\x01\x00\x00\x00\x00\x00\x00\n\x14\x01\x02'
eth = ethernet.Ethernet_Frame(raw_frame)
arp_packet = arp.ARP_packet(eth.data)
arp_packet.prot_type = b'\x33\x44'
assert arp_packet.packet.hex(
) == '00013344060400010011223344550a1401010000000000000a140102'
def test_ARP_packet_reply_packet():
raw_frame = b'"3DUfw\x00\x11"3DU\x08\x06\x00\x01\x08\x00\x06\x04\x00\x01\x00\x11"3DU\n\x14\x01\x01\x00\x00\x00\x00\x00\x00\n\x14\x01\x02'
eth = ethernet.Ethernet_Frame(raw_frame)
arp_packet = arp.ARP_packet(eth.data)
assert arp_packet.conv_reply_packet()
assert arp_packet.packet.hex(
) == '0001080006040002aabbccddeeff0a1401020011223344550a140101'
def test_ARP_packet_init():
raw_frame = b'"3DUfw\x00\x11"3DU\x08\x06\x00\x01\x08\x00\x06\x04\x00\x01\x00\x11"3DU\n\x14\x01\x01\x00\x00\x00\x00\x00\x00\n\x14\x01\x02'
eth = ethernet.Ethernet_Frame(raw_frame)
arp_packet = arp.ARP_packet(eth.data)
# assert arp_packet.packet_all.hex() == '00010800060400010011223344550a1401010000000000000a140102'
assert arp_packet.packet.hex(
) == '00010800060400010011223344550a1401010000000000000a140102'
assert arp_packet.hard_type.hex() == '0001'
assert arp_packet.prot_type.hex() == '0800'
assert arp_packet.hard_size.hex() == '06'
assert arp_packet.prot_size.hex() == '04'
assert arp_packet.op.hex() == '0001'
assert arp_packet.sender_mac_addr.hex() == '001122334455'
assert arp_packet.sender_ip_addr.hex() == '0a140101'
assert arp_packet.target_mac_addr.hex() == '000000000000'
assert arp_packet.target_ip_addr.hex() == '0a140102'
def test_ARP_packet_init_dummy():
arp_packet = arp.ARP_packet()
assert arp_packet.packet == b'\x00' * 28
# tun.up()
print('Success')
except:
print('TAP up failure')
sys.exit(ERROR)
packetnumber = 0
try:
while (True):
raw_packet = tap.read(tap.mtu) # buf = tun.read(tun.mtu)
eth_frame = eth.Ethernet_Frame(raw_packet)
print(str(eth_frame))
if f.ETHER_TYPE[eth_frame.eth_type.hex()] == 'ARP':
arp_packet = arp.ARP_packet(eth_frame.data)
print(str(arp_packet))
if f.OP[arp_packet.op.hex()] == 'ARP_request':
if arp_packet.conv_reply_packet():
eth_frame.src_mac_addr = arp_packet.sender_mac_addr
eth_frame.dst_mac_addr = arp_packet.target_mac_addr
eth_frame.data = arp_packet.packet
print(str(arp_packet))
tap.write(eth_frame.frame)
packetnumber += 1
except KeyboardInterrupt:
tap.close()