def create_stream_ip6(self, src_if, src_ip, dst_ip):
pkts = []
for i in range(0, N_PKTS_IN_STREAM):
info = self.create_packet_info(src_if, src_if)
payload = self.info_to_payload(info)
p = (Ether(dst=getmacbyip6(dst_ip), src=src_if.remote_mac) /
IPv6(src=src_ip, dst=dst_ip) / UDP(sport=1234, dport=1234) /
Raw(payload))
info.data = p.copy()
pkts.append(p)
return pkts
def _get_mac_address_of_ip(self, ip_addr: IPAddress):
if ip_addr.version == IPAddress.IPV4:
ip_str = socket.inet_ntop(socket.AF_INET, ip_addr.address)
addr_str = getmacbyip(ip_str)
else:
ip_str = socket.inet_ntop(socket.AF_INET6, ip_addr.address)
addr_str = getmacbyip6(ip_str)
if not addr_str:
LOG.error("Coudn't find mac for IP: %s, disabling ebpf" % (ip_str))
return None
LOG.debug("IP: %s, mac: %s" % (ip_str, addr_str))
return self._pack_mac_addr(addr_str)
def _get_gw_mac_address_v6(self, ip: IPAddress) -> str:
try:
gw_ip = ipaddress.ip_address(ip.address)
mac = getmacbyip6(str(gw_ip))
self.logger.debug("Got mac %s for IP: %s", mac, gw_ip)
return mac
except Scapy_Exception as ex:
self.logger.warning("Error in probing Mac address: err %s", ex)
return ""
except ValueError:
self.logger.warning(
"Invalid GW Ip address: [%s]",
str(ip),
)
return ""
def verify_capture_ip6(self, rx_if, sent):
capture = rx_if.get_capture(len(sent))
self.assertEqual(len(capture), len(sent))
for i in range(len(capture)):
tx = sent[i]
rx = capture[i]
eth = rx[Ether]
self.assertEqual(eth.type, 0x86DD)
tx_ip = tx[IPv6]
rx_ip = rx[IPv6]
# check the MAC address on the RX'd packet is correctly formed
self.assertEqual(eth.dst, getmacbyip6(rx_ip.dst))
self.assertEqual(rx_ip.src, tx_ip.src)
self.assertEqual(rx_ip.dst, tx_ip.dst)
# IP processing post pop has decremented the TTL
self.assertEqual(rx_ip.hlim + 1, tx_ip.hlim)
def verify_capture_ip6(self, rx_if, sent):
capture = rx_if.get_capture(len(sent))
self.assertEqual(len(capture), len(sent))
for i in range(len(capture)):
tx = sent[i]
rx = capture[i]
eth = rx[Ether]
self.assertEqual(eth.type, 0x86DD)
tx_ip = tx[IPv6]
rx_ip = rx[IPv6]
# check the MAC address on the RX'd packet is correctly formed
self.assertEqual(eth.dst, getmacbyip6(rx_ip.dst))
self.assertEqual(rx_ip.src, tx_ip.src)
self.assertEqual(rx_ip.dst, tx_ip.dst)
# IP processing post pop has decremented the TTL
self.assertEqual(rx_ip.hlim + 1, tx_ip.hlim)
