import socket
import unittest
import struct
-import StringIO
import random
from framework import VppTestCase, VppTestRunner, running_extended_tests
+
+import scapy.compat
from scapy.layers.inet import IP, TCP, UDP, ICMP
from scapy.layers.inet import IPerror, TCPerror, UDPerror, ICMPerror
from scapy.layers.inet6 import IPv6, ICMPv6EchoRequest, ICMPv6EchoReply, \
- ICMPv6ND_NS, ICMPv6ND_NA, ICMPv6NDOptDstLLAddr
+ ICMPv6ND_NS, ICMPv6ND_NA, ICMPv6NDOptDstLLAddr, fragment6
from scapy.layers.inet6 import ICMPv6DestUnreach, IPerror6, IPv6ExtHdrFragment
from scapy.layers.l2 import Ether, ARP, GRE
from scapy.data import IP_PROTOS
from scapy.packet import bind_layers, Raw
-from scapy.all import fragment6
from util import ppp
from ipfix import IPFIX, Set, Template, Data, IPFIXDecoder
from time import sleep
from util import ip4_range
-from util import mactobinary
+from vpp_papi import mac_pton
+from syslog_rfc5424_parser import SyslogMessage, ParseError
+from syslog_rfc5424_parser.constants import SyslogFacility, SyslogSeverity
+from vpp_papi_provider import SYSLOG_SEVERITY
+from io import BytesIO
+from vpp_papi import VppEnum
+from scapy.all import bind_layers, Packet, ByteEnumField, ShortField, \
+ IPField, IntField, LongField, XByteField, FlagsField, FieldLenField, \
+ PacketListField
+
+
+# NAT HA protocol event data
+class Event(Packet):
+ name = "Event"
+ fields_desc = [ByteEnumField("event_type", None,
+ {1: "add", 2: "del", 3: "refresh"}),
+ ByteEnumField("protocol", None,
+ {0: "udp", 1: "tcp", 2: "icmp"}),
+ ShortField("flags", 0),
+ IPField("in_addr", None),
+ IPField("out_addr", None),
+ ShortField("in_port", None),
+ ShortField("out_port", None),
+ IPField("eh_addr", None),
+ IPField("ehn_addr", None),
+ ShortField("eh_port", None),
+ ShortField("ehn_port", None),
+ IntField("fib_index", None),
+ IntField("total_pkts", 0),
+ LongField("total_bytes", 0)]
+
+ def extract_padding(self, s):
+ return "", s
+
+
+# NAT HA protocol header
+class HANATStateSync(Packet):
+ name = "HA NAT state sync"
+ fields_desc = [XByteField("version", 1),
+ FlagsField("flags", 0, 8, ['ACK']),
+ FieldLenField("count", None, count_of="events"),
+ IntField("sequence_number", 1),
+ IntField("thread_index", 0),
+ PacketListField("events", [], Event,
+ count_from=lambda pkt: pkt.count)]
class MethodHolder(VppTestCase):
is_add=0)
for intf in [self.pg7, self.pg8]:
- neighbors = self.vapi.ip_neighbor_dump(intf.sw_if_index)
- for n in neighbors:
- self.vapi.ip_neighbor_add_del(intf.sw_if_index,
- n.mac_address,
- n.ip_address,
- is_add=0)
+ self.vapi.ip_neighbor_add_del(
+ intf.sw_if_index,
+ intf.remote_mac,
+ intf.remote_ip4,
+ flags=(VppEnum.vl_api_ip_neighbor_flags_t.
+ IP_API_NEIGHBOR_FLAG_STATIC),
+ is_add=0)
if self.pg7.has_ip4_config:
self.pg7.unconfig_ip4()
interfaces = self.vapi.nat44_interface_addr_dump()
for intf in interfaces:
- self.vapi.nat44_add_interface_addr(intf.sw_if_index,
- twice_nat=intf.twice_nat,
- is_add=0)
+ self.vapi.nat44_add_del_interface_addr(intf.sw_if_index,
+ twice_nat=intf.twice_nat,
+ is_add=0)
- self.vapi.nat_ipfix(enable=0, src_port=self.ipfix_src_port,
- domain_id=self.ipfix_domain_id)
+ self.vapi.nat_ipfix_enable_disable(enable=0,
+ src_port=self.ipfix_src_port,
+ domain_id=self.ipfix_domain_id)
self.ipfix_src_port = 4739
self.ipfix_domain_id = 1
+ self.vapi.syslog_set_filter(SYSLOG_SEVERITY.EMERG)
+
+ self.vapi.nat_ha_set_listener('0.0.0.0', 0)
+ self.vapi.nat_ha_set_failover('0.0.0.0', 0)
+
interfaces = self.vapi.nat44_interface_dump()
for intf in interfaces:
if intf.is_inside > 1:
protocol=id_m.protocol,
is_add=0)
- adresses = self.vapi.nat44_address_dump()
- for addr in adresses:
+ addresses = self.vapi.nat44_address_dump()
+ for addr in addresses:
self.vapi.nat44_add_del_address_range(addr.ip_address,
addr.ip_address,
twice_nat=addr.twice_nat,
:param ip: IP address
:param is_add: 1 if add, 0 if delete (Default add)
- :param twice_nat: twice NAT address for extenal hosts
+ :param twice_nat: twice NAT address for external hosts
"""
nat_addr = socket.inet_pton(socket.AF_INET, ip)
self.vapi.nat44_add_del_address_range(nat_addr, nat_addr, is_add,
pref_n[13] = ip4_n[1]
pref_n[14] = ip4_n[2]
pref_n[15] = ip4_n[3]
- return socket.inet_ntop(socket.AF_INET6, ''.join(pref_n))
+ packed_pref_n = b''.join([scapy.compat.chb(x) for x in pref_n])
+ return socket.inet_ntop(socket.AF_INET6, packed_pref_n)
def extract_ip4(self, ip6, plen):
"""
:param capture: Captured packets
:param nat_ip: Translated IP address (Default use global NAT address)
- :param same_port: Sorce port number is not translated (Default False)
+ :param same_port: Source port number is not translated (Default False)
:param dst_ip: Destination IP address (Default do not verify)
:param is_ip6: If L3 protocol is IPv6 (Default False)
"""
:param capture: Captured packets
:param nat_ip: Translated IP address
- :param same_port: Sorce port number is not translated (Default False)
+ :param same_port: Source port number is not translated (Default False)
:param dst_ip: Destination IP address (Default do not verify)
"""
return self.verify_capture_out(capture, nat_ip, same_port, dst_ip,
for packet in capture:
try:
self.assertEqual(packet[IP].src, src_ip)
- self.assertTrue(packet.haslayer(ICMP))
+ self.assertEqual(packet.haslayer(ICMP), 1)
icmp = packet[ICMP]
self.assertEqual(icmp.type, icmp_type)
self.assertTrue(icmp.haslayer(IPerror))
for packet in capture:
try:
self.assertEqual(packet[IP].dst, in_if.remote_ip4)
- self.assertTrue(packet.haslayer(ICMP))
+ self.assertEqual(packet.haslayer(ICMP), 1)
icmp = packet[ICMP]
self.assertEqual(icmp.type, icmp_type)
self.assertTrue(icmp.haslayer(IPerror))
:param data: Payload data
:param proto: protocol (TCP, UDP, ICMP)
:param echo_reply: use echo_reply if protocol is ICMP
- :returns: Fragmets
+ :returns: Fragments
"""
if proto == IP_PROTOS.tcp:
p = (IP(src=src_if.remote_ip4, dst=dst) /
TCP(sport=sport, dport=dport) /
Raw(data))
- p = p.__class__(str(p))
- chksum = p['TCP'].chksum
+ p = p.__class__(scapy.compat.raw(p))
+ chksum = p[TCP].chksum
proto_header = TCP(sport=sport, dport=dport, chksum=chksum)
elif proto == IP_PROTOS.udp:
proto_header = UDP(sport=sport, dport=dport)
:param pref: NAT64 prefix
:param plen: NAT64 prefix length
:param fragsize: size of fragments
- :returns: Fragmets
+ :returns: Fragments
"""
if pref is None:
dst_ip6 = ''.join(['64:ff9b::', dst])
:returns: Reassembled IPv4 packet
"""
- buffer = StringIO.StringIO()
+ buffer = BytesIO()
for p in frags:
self.assertEqual(p[IP].src, src)
self.assertEqual(p[IP].dst, dst)
self.assert_ip_checksum_valid(p)
buffer.seek(p[IP].frag * 8)
- buffer.write(p[IP].payload)
+ buffer.write(bytes(p[IP].payload))
ip = IP(src=frags[0][IP].src, dst=frags[0][IP].dst,
proto=frags[0][IP].proto)
if ip.proto == IP_PROTOS.tcp:
:returns: Reassembled IPv6 packet
"""
- buffer = StringIO.StringIO()
+ buffer = BytesIO()
for p in frags:
self.assertEqual(p[IPv6].src, src)
self.assertEqual(p[IPv6].dst, dst)
buffer.seek(p[IPv6ExtHdrFragment].offset * 8)
- buffer.write(p[IPv6ExtHdrFragment].payload)
+ buffer.write(bytes(p[IPv6ExtHdrFragment].payload))
ip = IPv6(src=frags[0][IPv6].src, dst=frags[0][IPv6].dst,
nh=frags[0][IPv6ExtHdrFragment].nh)
if ip.nh == IP_PROTOS.tcp:
self.assertEqual(6, len(data))
for record in data:
# natEvent
- self.assertIn(ord(record[230]), [4, 5])
- if ord(record[230]) == 4:
+ self.assertIn(scapy.compat.orb(record[230]), [4, 5])
+ if scapy.compat.orb(record[230]) == 4:
nat44_ses_create_num += 1
else:
nat44_ses_delete_num += 1
# ingressVRFID
self.assertEqual(struct.pack("!I", 0), record[234])
# protocolIdentifier/sourceTransportPort/postNAPTSourceTransportPort
- if IP_PROTOS.icmp == ord(record[4]):
+ if IP_PROTOS.icmp == scapy.compat.orb(record[4]):
self.assertEqual(struct.pack("!H", self.icmp_id_in), record[7])
self.assertEqual(struct.pack("!H", self.icmp_id_out),
record[227])
- elif IP_PROTOS.tcp == ord(record[4]):
+ elif IP_PROTOS.tcp == scapy.compat.orb(record[4]):
self.assertEqual(struct.pack("!H", self.tcp_port_in),
record[7])
self.assertEqual(struct.pack("!H", self.tcp_port_out),
record[227])
- elif IP_PROTOS.udp == ord(record[4]):
+ elif IP_PROTOS.udp == scapy.compat.orb(record[4]):
self.assertEqual(struct.pack("!H", self.udp_port_in),
record[7])
self.assertEqual(struct.pack("!H", self.udp_port_out),
self.assertEqual(1, len(data))
record = data[0]
# natEvent
- self.assertEqual(ord(record[230]), 3)
+ self.assertEqual(scapy.compat.orb(record[230]), 3)
# natPoolID
self.assertEqual(struct.pack("!I", 0), record[283])
self.assertEqual(1, len(data))
record = data[0]
# natEvent
- self.assertEqual(ord(record[230]), 13)
+ self.assertEqual(scapy.compat.orb(record[230]), 13)
# natQuotaExceededEvent
self.assertEqual(struct.pack("I", 1), record[466])
# maxSessionEntries
self.assertEqual(1, len(data))
record = data[0]
# natEvent
- self.assertEqual(ord(record[230]), 13)
+ self.assertEqual(scapy.compat.orb(record[230]), 13)
# natQuotaExceededEvent
self.assertEqual(struct.pack("I", 2), record[466])
# maxBIBEntries
self.assertEqual(1, len(data))
record = data[0]
# natEvent
- self.assertEqual(ord(record[230]), 13)
+ self.assertEqual(scapy.compat.orb(record[230]), 13)
# natQuotaExceededEvent
self.assertEqual(struct.pack("I", 5), record[466])
# maxFragmentsPendingReassembly
self.assertEqual(1, len(data))
record = data[0]
# natEvent
- self.assertEqual(ord(record[230]), 13)
+ self.assertEqual(scapy.compat.orb(record[230]), 13)
# natQuotaExceededEvent
self.assertEqual(struct.pack("I", 5), record[466])
# maxFragmentsPendingReassembly
record = data[0]
# natEvent
if is_create:
- self.assertEqual(ord(record[230]), 10)
+ self.assertEqual(scapy.compat.orb(record[230]), 10)
else:
- self.assertEqual(ord(record[230]), 11)
+ self.assertEqual(scapy.compat.orb(record[230]), 11)
# sourceIPv6Address
self.assertEqual(src_addr, record[27])
# postNATSourceIPv4Address
self.assertEqual(self.nat_addr_n, record[225])
# protocolIdentifier
- self.assertEqual(IP_PROTOS.tcp, ord(record[4]))
+ self.assertEqual(IP_PROTOS.tcp, scapy.compat.orb(record[4]))
# ingressVRFID
self.assertEqual(struct.pack("!I", 0), record[234])
# sourceTransportPort
record = data[0]
# natEvent
if is_create:
- self.assertEqual(ord(record[230]), 6)
+ self.assertEqual(scapy.compat.orb(record[230]), 6)
else:
- self.assertEqual(ord(record[230]), 7)
+ self.assertEqual(scapy.compat.orb(record[230]), 7)
# sourceIPv6Address
self.assertEqual(src_addr, record[27])
# destinationIPv6Address
self.assertEqual(socket.inet_pton(socket.AF_INET, dst_addr),
record[226])
# protocolIdentifier
- self.assertEqual(IP_PROTOS.tcp, ord(record[4]))
+ self.assertEqual(IP_PROTOS.tcp, scapy.compat.orb(record[4]))
# ingressVRFID
self.assertEqual(struct.pack("!I", 0), record[234])
# sourceTransportPort
""" Verify that there is no NAT44 user """
users = self.vapi.nat44_user_dump()
self.assertEqual(len(users), 0)
+ users = self.statistics.get_counter('/nat44/total-users')
+ self.assertEqual(users[0][0], 0)
+ sessions = self.statistics.get_counter('/nat44/total-sessions')
+ self.assertEqual(sessions[0][0], 0)
def verify_ipfix_max_entries_per_user(self, data, limit, src_addr):
"""
self.assertEqual(1, len(data))
record = data[0]
# natEvent
- self.assertEqual(ord(record[230]), 13)
+ self.assertEqual(scapy.compat.orb(record[230]), 13)
# natQuotaExceededEvent
self.assertEqual(struct.pack("I", 3), record[466])
# maxEntriesPerUser
# sourceIPv4Address
self.assertEqual(src_addr, record[8])
+ def verify_syslog_apmap(self, data, is_add=True):
+ message = data.decode('utf-8')
+ try:
+ message = SyslogMessage.parse(message)
+ except ParseError as e:
+ self.logger.error(e)
+ raise
+ else:
+ self.assertEqual(message.severity, SyslogSeverity.info)
+ self.assertEqual(message.appname, 'NAT')
+ self.assertEqual(message.msgid, 'APMADD' if is_add else 'APMDEL')
+ sd_params = message.sd.get('napmap')
+ self.assertTrue(sd_params is not None)
+ self.assertEqual(sd_params.get('IATYP'), 'IPv4')
+ self.assertEqual(sd_params.get('ISADDR'), self.pg0.remote_ip4)
+ self.assertEqual(sd_params.get('ISPORT'), "%d" % self.tcp_port_in)
+ self.assertEqual(sd_params.get('XATYP'), 'IPv4')
+ self.assertEqual(sd_params.get('XSADDR'), self.nat_addr)
+ self.assertEqual(sd_params.get('XSPORT'), "%d" % self.tcp_port_out)
+ self.assertEqual(sd_params.get('PROTO'), "%d" % IP_PROTOS.tcp)
+ self.assertTrue(sd_params.get('SSUBIX') is not None)
+ self.assertEqual(sd_params.get('SVLAN'), '0')
+
+ def verify_syslog_sess(self, data, is_add=True, is_ip6=False):
+ message = data.decode('utf-8')
+ try:
+ message = SyslogMessage.parse(message)
+ except ParseError as e:
+ self.logger.error(e)
+ raise
+ else:
+ self.assertEqual(message.severity, SyslogSeverity.info)
+ self.assertEqual(message.appname, 'NAT')
+ self.assertEqual(message.msgid, 'SADD' if is_add else 'SDEL')
+ sd_params = message.sd.get('nsess')
+ self.assertTrue(sd_params is not None)
+ if is_ip6:
+ self.assertEqual(sd_params.get('IATYP'), 'IPv6')
+ self.assertEqual(sd_params.get('ISADDR'), self.pg0.remote_ip6)
+ else:
+ self.assertEqual(sd_params.get('IATYP'), 'IPv4')
+ self.assertEqual(sd_params.get('ISADDR'), self.pg0.remote_ip4)
+ self.assertTrue(sd_params.get('SSUBIX') is not None)
+ self.assertEqual(sd_params.get('ISPORT'), "%d" % self.tcp_port_in)
+ self.assertEqual(sd_params.get('XATYP'), 'IPv4')
+ self.assertEqual(sd_params.get('XSADDR'), self.nat_addr)
+ self.assertEqual(sd_params.get('XSPORT'), "%d" % self.tcp_port_out)
+ self.assertEqual(sd_params.get('PROTO'), "%d" % IP_PROTOS.tcp)
+ self.assertEqual(sd_params.get('SVLAN'), '0')
+ self.assertEqual(sd_params.get('XDADDR'), self.pg1.remote_ip4)
+ self.assertEqual(sd_params.get('XDPORT'),
+ "%d" % self.tcp_external_port)
+
def verify_mss_value(self, pkt, mss):
"""
Verify TCP MSS value
layer = self.proto2layer(proto)
if proto == IP_PROTOS.tcp:
- data = "A" * 4 + "B" * 16 + "C" * 3
+ data = b"A" * 4 + b"B" * 16 + b"C" * 3
else:
- data = "A" * 16 + "B" * 16 + "C" * 3
+ data = b"A" * 16 + b"B" * 16 + b"C" * 3
self.port_in = random.randint(1025, 65535)
reass = self.vapi.nat_reass_dump()
layer = self.proto2layer(proto)
if proto == IP_PROTOS.tcp:
- data = "A" * 4 + "B" * 16 + "C" * 3
+ data = b"A" * 4 + b"B" * 16 + b"C" * 3
else:
- data = "A" * 16 + "B" * 16 + "C" * 3
+ data = b"A" * 16 + b"B" * 16 + b"C" * 3
self.port_in = random.randint(1025, 65535)
for i in range(2):
layer = self.proto2layer(proto)
if proto == IP_PROTOS.tcp:
- data = "A" * 4 + "B" * 16 + "C" * 3
+ data = b"A" * 4 + b"B" * 16 + b"C" * 3
else:
- data = "A" * 16 + "B" * 16 + "C" * 3
+ data = b"A" * 16 + b"B" * 16 + b"C" * 3
# send packet from host to server
pkts = self.create_stream_frag(self.pg0,
layer = self.proto2layer(proto)
if proto == IP_PROTOS.tcp:
- data = "A" * 4 + "B" * 16 + "C" * 3
+ data = b"A" * 4 + b"B" * 16 + b"C" * 3
else:
- data = "A" * 16 + "B" * 16 + "C" * 3
+ data = b"A" * 16 + b"B" * 16 + b"C" * 3
self.port_in = random.randint(1025, 65535)
for i in range(2):
layer = self.proto2layer(proto)
if proto == IP_PROTOS.tcp:
- data = "A" * 4 + "B" * 16 + "C" * 3
+ data = b"A" * 4 + b"B" * 16 + b"C" * 3
else:
- data = "A" * 16 + "B" * 16 + "C" * 3
+ data = b"A" * 16 + b"B" * 16 + b"C" * 3
self.port_in = random.randint(1025, 65535)
for i in range(2):
cls.ipfix_src_port = 4739
cls.ipfix_domain_id = 1
cls.tcp_external_port = 80
+ cls.udp_external_port = 69
cls.create_pg_interfaces(range(10))
cls.interfaces = list(cls.pg_interfaces[0:4])
cls.pg1.configure_ipv4_neighbors()
cls.overlapping_interfaces = list(list(cls.pg_interfaces[4:7]))
- cls.vapi.ip_table_add_del(10, is_add=1)
- cls.vapi.ip_table_add_del(20, is_add=1)
+ cls.vapi.ip_table_add_del(is_add=1, table_id=10)
+ cls.vapi.ip_table_add_del(is_add=1, table_id=20)
cls.pg4._local_ip4 = "172.16.255.1"
cls.pg4._local_ip4n = socket.inet_pton(socket.AF_INET, i.local_ip4)
cls.pg9.generate_remote_hosts(2)
cls.pg9.config_ip4()
ip_addr_n = socket.inet_pton(socket.AF_INET, "10.0.0.1")
- cls.vapi.sw_interface_add_del_address(cls.pg9.sw_if_index,
- ip_addr_n,
- 24)
+ cls.vapi.sw_interface_add_del_address(
+ sw_if_index=cls.pg9.sw_if_index, address=ip_addr_n,
+ address_length=24)
cls.pg9.admin_up()
cls.pg9.resolve_arp()
cls.pg9._remote_hosts[1]._ip4 = cls.pg9._remote_hosts[0]._ip4
def test_dynamic(self):
""" NAT44 dynamic translation test """
-
self.nat44_add_address(self.nat_addr)
self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index)
self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index,
is_inside=0)
# in2out
+ tcpn = self.statistics.get_counter(
+ '/err/nat44-in2out-slowpath/TCP packets')
+ udpn = self.statistics.get_counter(
+ '/err/nat44-in2out-slowpath/UDP packets')
+ icmpn = self.statistics.get_counter(
+ '/err/nat44-in2out-slowpath/ICMP packets')
+ totaln = self.statistics.get_counter(
+ '/err/nat44-in2out-slowpath/good in2out packets processed')
+
pkts = self.create_stream_in(self.pg0, self.pg1)
self.pg0.add_stream(pkts)
self.pg_enable_capture(self.pg_interfaces)
capture = self.pg1.get_capture(len(pkts))
self.verify_capture_out(capture)
+ err = self.statistics.get_counter(
+ '/err/nat44-in2out-slowpath/TCP packets')
+ self.assertEqual(err - tcpn, 1)
+ err = self.statistics.get_counter(
+ '/err/nat44-in2out-slowpath/UDP packets')
+ self.assertEqual(err - udpn, 1)
+ err = self.statistics.get_counter(
+ '/err/nat44-in2out-slowpath/ICMP packets')
+ self.assertEqual(err - icmpn, 1)
+ err = self.statistics.get_counter(
+ '/err/nat44-in2out-slowpath/good in2out packets processed')
+ self.assertEqual(err - totaln, 3)
+
# out2in
+ tcpn = self.statistics.get_counter('/err/nat44-out2in/TCP packets')
+ udpn = self.statistics.get_counter('/err/nat44-out2in/UDP packets')
+ icmpn = self.statistics.get_counter('/err/nat44-out2in/ICMP packets')
+ totaln = self.statistics.get_counter(
+ '/err/nat44-out2in/good out2in packets processed')
+
pkts = self.create_stream_out(self.pg1)
self.pg1.add_stream(pkts)
self.pg_enable_capture(self.pg_interfaces)
capture = self.pg0.get_capture(len(pkts))
self.verify_capture_in(capture, self.pg0)
+ err = self.statistics.get_counter('/err/nat44-out2in/TCP packets')
+ self.assertEqual(err - tcpn, 1)
+ err = self.statistics.get_counter('/err/nat44-out2in/UDP packets')
+ self.assertEqual(err - udpn, 1)
+ err = self.statistics.get_counter('/err/nat44-out2in/ICMP packets')
+ self.assertEqual(err - icmpn, 1)
+ err = self.statistics.get_counter(
+ '/err/nat44-out2in/good out2in packets processed')
+ self.assertEqual(err - totaln, 3)
+
+ users = self.statistics.get_counter('/nat44/total-users')
+ self.assertEqual(users[0][0], 1)
+ sessions = self.statistics.get_counter('/nat44/total-sessions')
+ self.assertEqual(sessions[0][0], 3)
+
def test_dynamic_icmp_errors_in2out_ttl_1(self):
""" NAT44 handling of client packets with TTL=1 """
is_inside=0)
sm = self.vapi.nat44_static_mapping_dump()
self.assertEqual(len(sm), 1)
- self.assertEqual((sm[0].tag).split('\0', 1)[0], '')
+ self.assertEqual((sm[0].tag).split(b'\0', 1)[0], b'')
self.assertEqual(sm[0].protocol, 0)
self.assertEqual(sm[0].local_port, 0)
self.assertEqual(sm[0].external_port, 0)
self.tcp_port_out = 6303
self.udp_port_out = 6304
self.icmp_id_out = 6305
- tag = "testTAG"
+ tag = b"testTAG"
self.nat44_add_static_mapping(self.pg0.remote_ip4, nat_ip, tag=tag)
self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index)
is_inside=0)
sm = self.vapi.nat44_static_mapping_dump()
self.assertEqual(len(sm), 1)
- self.assertEqual((sm[0].tag).split('\0', 1)[0], tag)
+ self.assertEqual((sm[0].tag).split(b'\0', 1)[0], tag)
# out2in
pkts = self.create_stream_out(self.pg1, nat_ip)
# general user and session dump verifications
users = self.vapi.nat44_user_dump()
- self.assertTrue(len(users) >= 3)
+ self.assertGreaterEqual(len(users), 3)
addresses = self.vapi.nat44_address_dump()
self.assertEqual(len(addresses), 1)
for user in users:
# pg4 session dump
sessions = self.vapi.nat44_user_session_dump(self.pg4.remote_ip4n, 10)
- self.assertTrue(len(sessions) >= 4)
+ self.assertGreaterEqual(len(sessions), 4)
for session in sessions:
self.assertFalse(session.is_static)
self.assertEqual(session.inside_ip_address[0:4],
# pg6 session dump
sessions = self.vapi.nat44_user_session_dump(self.pg6.remote_ip4n, 20)
- self.assertTrue(len(sessions) >= 3)
+ self.assertGreaterEqual(len(sessions), 3)
for session in sessions:
self.assertTrue(session.is_static)
self.assertEqual(session.inside_ip_address[0:4],
self.pg6.remote_ip4n)
- self.assertEqual(map(ord, session.outside_ip_address[0:4]),
- map(int, static_nat_ip.split('.')))
+ self.assertEqual(session.outside_ip_address,
+ socket.inet_pton(socket.AF_INET, static_nat_ip))
self.assertTrue(session.inside_port in
[self.tcp_port_in, self.udp_port_in,
self.icmp_id_in])
def test_interface_addr(self):
""" Acquire NAT44 addresses from interface """
- self.vapi.nat44_add_interface_addr(self.pg7.sw_if_index)
+ self.vapi.nat44_add_del_interface_addr(self.pg7.sw_if_index)
# no address in NAT pool
- adresses = self.vapi.nat44_address_dump()
- self.assertEqual(0, len(adresses))
+ addresses = self.vapi.nat44_address_dump()
+ self.assertEqual(0, len(addresses))
# configure interface address and check NAT address pool
self.pg7.config_ip4()
- adresses = self.vapi.nat44_address_dump()
- self.assertEqual(1, len(adresses))
- self.assertEqual(adresses[0].ip_address[0:4], self.pg7.local_ip4n)
+ addresses = self.vapi.nat44_address_dump()
+ self.assertEqual(1, len(addresses))
+ self.assertEqual(addresses[0].ip_address[0:4], self.pg7.local_ip4n)
# remove interface address and check NAT address pool
self.pg7.unconfig_ip4()
- adresses = self.vapi.nat44_address_dump()
- self.assertEqual(0, len(adresses))
+ addresses = self.vapi.nat44_address_dump()
+ self.assertEqual(0, len(addresses))
def test_interface_addr_static_mapping(self):
""" Static mapping with addresses from interface """
- tag = "testTAG"
+ tag = b"testTAG"
- self.vapi.nat44_add_interface_addr(self.pg7.sw_if_index)
+ self.vapi.nat44_add_del_interface_addr(self.pg7.sw_if_index)
self.nat44_add_static_mapping(
'1.2.3.4',
external_sw_if_index=self.pg7.sw_if_index,
self.assertEqual(1, len(static_mappings))
self.assertEqual(self.pg7.sw_if_index,
static_mappings[0].external_sw_if_index)
- self.assertEqual((static_mappings[0].tag).split('\0', 1)[0], tag)
+ self.assertEqual((static_mappings[0].tag).split(b'\0', 1)[0], tag)
# configure interface address and check static mappings
self.pg7.config_ip4()
if sm.external_sw_if_index == 0xFFFFFFFF:
self.assertEqual(sm.external_ip_address[0:4],
self.pg7.local_ip4n)
- self.assertEqual((sm.tag).split('\0', 1)[0], tag)
+ self.assertEqual((sm.tag).split(b'\0', 1)[0], tag)
resolved = True
self.assertTrue(resolved)
self.assertEqual(1, len(static_mappings))
self.assertEqual(self.pg7.sw_if_index,
static_mappings[0].external_sw_if_index)
- self.assertEqual((static_mappings[0].tag).split('\0', 1)[0], tag)
+ self.assertEqual((static_mappings[0].tag).split(b'\0', 1)[0], tag)
# configure interface address again and check static mappings
self.pg7.config_ip4()
if sm.external_sw_if_index == 0xFFFFFFFF:
self.assertEqual(sm.external_ip_address[0:4],
self.pg7.local_ip4n)
- self.assertEqual((sm.tag).split('\0', 1)[0], tag)
+ self.assertEqual((sm.tag).split(b'\0', 1)[0], tag)
resolved = True
self.assertTrue(resolved)
""" Identity NAT with addresses from interface """
port = 53053
- self.vapi.nat44_add_interface_addr(self.pg7.sw_if_index)
+ self.vapi.nat44_add_del_interface_addr(self.pg7.sw_if_index)
self.vapi.nat44_add_del_identity_mapping(
sw_if_index=self.pg7.sw_if_index,
port=port,
identity_mappings[0].sw_if_index)
def test_ipfix_nat44_sess(self):
- """ IPFIX logging NAT44 session created/delted """
+ """ IPFIX logging NAT44 session created/deleted """
self.ipfix_domain_id = 10
self.ipfix_src_port = 20202
- colector_port = 30303
+ collector_port = 30303
bind_layers(UDP, IPFIX, dport=30303)
self.nat44_add_address(self.nat_addr)
self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index)
src_address=self.pg3.local_ip4n,
path_mtu=512,
template_interval=10,
- collector_port=colector_port)
- self.vapi.nat_ipfix(domain_id=self.ipfix_domain_id,
- src_port=self.ipfix_src_port)
+ collector_port=collector_port)
+ self.vapi.nat_ipfix_enable_disable(domain_id=self.ipfix_domain_id,
+ src_port=self.ipfix_src_port)
pkts = self.create_stream_in(self.pg0, self.pg1)
self.pg0.add_stream(pkts)
self.assertEqual(p[IP].src, self.pg3.local_ip4)
self.assertEqual(p[IP].dst, self.pg3.remote_ip4)
self.assertEqual(p[UDP].sport, self.ipfix_src_port)
- self.assertEqual(p[UDP].dport, colector_port)
+ self.assertEqual(p[UDP].dport, collector_port)
self.assertEqual(p[IPFIX].observationDomainID,
self.ipfix_domain_id)
if p.haslayer(Template):
src_address=self.pg3.local_ip4n,
path_mtu=512,
template_interval=10)
- self.vapi.nat_ipfix(domain_id=self.ipfix_domain_id,
- src_port=self.ipfix_src_port)
+ self.vapi.nat_ipfix_enable_disable(domain_id=self.ipfix_domain_id,
+ src_port=self.ipfix_src_port)
p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4) /
data = ipfix.decode_data_set(p.getlayer(Set))
self.verify_ipfix_addr_exhausted(data)
- @unittest.skipUnless(running_extended_tests(), "part of extended tests")
+ @unittest.skipUnless(running_extended_tests, "part of extended tests")
def test_ipfix_max_sessions(self):
""" IPFIX logging maximum session entries exceeded """
self.nat44_add_address(self.nat_addr)
src_address=self.pg3.local_ip4n,
path_mtu=512,
template_interval=10)
- self.vapi.nat_ipfix(domain_id=self.ipfix_domain_id,
- src_port=self.ipfix_src_port)
+ self.vapi.nat_ipfix_enable_disable(domain_id=self.ipfix_domain_id,
+ src_port=self.ipfix_src_port)
p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4) /
data = ipfix.decode_data_set(p.getlayer(Set))
self.verify_ipfix_max_sessions(data, max_sessions)
+ def test_syslog_apmap(self):
+ """ Test syslog address and port mapping creation and deletion """
+ self.vapi.syslog_set_filter(SYSLOG_SEVERITY.INFO)
+ self.vapi.syslog_set_sender(self.pg3.local_ip4n, self.pg3.remote_ip4n)
+ self.nat44_add_address(self.nat_addr)
+ self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index)
+ self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index,
+ is_inside=0)
+
+ p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
+ IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4) /
+ TCP(sport=self.tcp_port_in, dport=20))
+ self.pg0.add_stream(p)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ capture = self.pg1.get_capture(1)
+ self.tcp_port_out = capture[0][TCP].sport
+ capture = self.pg3.get_capture(1)
+ self.verify_syslog_apmap(capture[0][Raw].load)
+
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ self.nat44_add_address(self.nat_addr, is_add=0)
+ capture = self.pg3.get_capture(1)
+ self.verify_syslog_apmap(capture[0][Raw].load, False)
+
def test_pool_addr_fib(self):
""" NAT44 add pool addresses to FIB """
static_addr = '10.0.0.10'
self.pg0.unconfig_ip4()
self.pg1.unconfig_ip4()
- self.vapi.ip_table_add_del(vrf_id1, is_add=1)
- self.vapi.ip_table_add_del(vrf_id2, is_add=1)
+ self.vapi.ip_table_add_del(is_add=1, table_id=vrf_id1)
+ self.vapi.ip_table_add_del(is_add=1, table_id=vrf_id2)
self.pg0.set_table_ip4(vrf_id1)
self.pg1.set_table_ip4(vrf_id2)
self.pg0.config_ip4()
self.pg1.config_ip4()
self.pg0.resolve_arp()
self.pg1.resolve_arp()
- self.vapi.ip_table_add_del(vrf_id1, is_add=0)
- self.vapi.ip_table_add_del(vrf_id2, is_add=0)
+ self.vapi.ip_table_add_del(is_add=0, table_id=vrf_id1)
+ self.vapi.ip_table_add_del(is_add=0, table_id=vrf_id2)
def test_vrf_feature_independent(self):
""" NAT44 tenant VRF independent address pool mode """
def test_dynamic_ipless_interfaces(self):
""" NAT44 interfaces without configured IP address """
- self.vapi.ip_neighbor_add_del(self.pg7.sw_if_index,
- mactobinary(self.pg7.remote_mac),
- self.pg7.remote_ip4n,
- is_static=1)
- self.vapi.ip_neighbor_add_del(self.pg8.sw_if_index,
- mactobinary(self.pg8.remote_mac),
- self.pg8.remote_ip4n,
- is_static=1)
+ self.vapi.ip_neighbor_add_del(
+ self.pg7.sw_if_index,
+ self.pg7.remote_mac,
+ self.pg7.remote_ip4,
+ flags=(VppEnum.vl_api_ip_neighbor_flags_t.
+ IP_API_NEIGHBOR_FLAG_STATIC))
+ self.vapi.ip_neighbor_add_del(
+ self.pg8.sw_if_index,
+ self.pg8.remote_mac,
+ self.pg8.remote_ip4,
+ flags=(VppEnum.vl_api_ip_neighbor_flags_t.
+ IP_API_NEIGHBOR_FLAG_STATIC))
self.vapi.ip_add_del_route(dst_address=self.pg7.remote_ip4n,
dst_address_length=32,
def test_static_ipless_interfaces(self):
""" NAT44 interfaces without configured IP address - 1:1 NAT """
- self.vapi.ip_neighbor_add_del(self.pg7.sw_if_index,
- mactobinary(self.pg7.remote_mac),
- self.pg7.remote_ip4n,
- is_static=1)
- self.vapi.ip_neighbor_add_del(self.pg8.sw_if_index,
- mactobinary(self.pg8.remote_mac),
- self.pg8.remote_ip4n,
- is_static=1)
+ self.vapi.ip_neighbor_add_del(
+ self.pg7.sw_if_index,
+ self.pg7.remote_mac,
+ self.pg7.remote_ip4,
+ flags=(VppEnum.vl_api_ip_neighbor_flags_t.
+ IP_API_NEIGHBOR_FLAG_STATIC))
+ self.vapi.ip_neighbor_add_del(
+ self.pg8.sw_if_index,
+ self.pg8.remote_mac,
+ self.pg8.remote_ip4,
+ flags=(VppEnum.vl_api_ip_neighbor_flags_t.
+ IP_API_NEIGHBOR_FLAG_STATIC))
self.vapi.ip_add_del_route(dst_address=self.pg7.remote_ip4n,
dst_address_length=32,
self.udp_port_out = 30607
self.icmp_id_out = 30608
- self.vapi.ip_neighbor_add_del(self.pg7.sw_if_index,
- mactobinary(self.pg7.remote_mac),
- self.pg7.remote_ip4n,
- is_static=1)
- self.vapi.ip_neighbor_add_del(self.pg8.sw_if_index,
- mactobinary(self.pg8.remote_mac),
- self.pg8.remote_ip4n,
- is_static=1)
+ self.vapi.ip_neighbor_add_del(
+ self.pg7.sw_if_index,
+ self.pg7.remote_mac,
+ self.pg7.remote_ip4,
+ flags=(VppEnum.vl_api_ip_neighbor_flags_t.
+ IP_API_NEIGHBOR_FLAG_STATIC))
+ self.vapi.ip_neighbor_add_del(
+ self.pg8.sw_if_index,
+ self.pg8.remote_mac,
+ self.pg8.remote_ip4,
+ flags=(VppEnum.vl_api_ip_neighbor_flags_t.
+ IP_API_NEIGHBOR_FLAG_STATIC))
self.vapi.ip_add_del_route(dst_address=self.pg7.remote_ip4n,
dst_address_length=32,
try:
self.assertEqual(packet[IP].src, nat_ip)
self.assertEqual(packet[IP].dst, self.pg1.remote_ip4)
- self.assertTrue(packet.haslayer(GRE))
+ self.assertEqual(packet.haslayer(GRE), 1)
self.assert_packet_checksums_valid(packet)
except:
self.logger.error(ppp("Unexpected or invalid packet:", packet))
try:
self.assertEqual(packet[IP].src, self.pg1.remote_ip4)
self.assertEqual(packet[IP].dst, self.pg0.remote_ip4)
- self.assertTrue(packet.haslayer(GRE))
+ self.assertEqual(packet.haslayer(GRE), 1)
self.assert_packet_checksums_valid(packet)
except:
self.logger.error(ppp("Unexpected or invalid packet:", packet))
try:
self.assertEqual(packet[IP].src, host_nat_ip)
self.assertEqual(packet[IP].dst, server.ip4)
- self.assertTrue(packet.haslayer(GRE))
+ self.assertEqual(packet.haslayer(GRE), 1)
self.assert_packet_checksums_valid(packet)
except:
self.logger.error(ppp("Unexpected or invalid packet:", packet))
try:
self.assertEqual(packet[IP].src, server_nat_ip)
self.assertEqual(packet[IP].dst, host.ip4)
- self.assertTrue(packet.haslayer(GRE))
+ self.assertEqual(packet.haslayer(GRE), 1)
self.assert_packet_checksums_valid(packet)
except:
self.logger.error(ppp("Unexpected or invalid packet:", packet))
self.logger.error(ppp("Unexpected or invalid packet:", p))
raise
+ err = self.statistics.get_counter('/err/nat44-classify/next in2out')
+ self.assertEqual(err, 1)
+ err = self.statistics.get_counter('/err/nat44-classify/next out2in')
+ self.assertEqual(err, 1)
+
def test_del_session(self):
""" Delete NAT44 session """
self.nat44_add_address(self.nat_addr)
def test_frag_forwarding(self):
""" NAT44 forwarding fragment test """
- self.vapi.nat44_add_interface_addr(self.pg1.sw_if_index)
+ self.vapi.nat44_add_del_interface_addr(self.pg1.sw_if_index)
self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index)
self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index,
is_inside=0)
self.vapi.nat44_forwarding_enable_disable(1)
- data = "A" * 16 + "B" * 16 + "C" * 3
+ data = b"A" * 16 + b"B" * 16 + b"C" * 3
pkts = self.create_stream_frag(self.pg1,
self.pg0.remote_ip4,
4789,
src_address=self.pg3.local_ip4n,
path_mtu=512,
template_interval=10)
- self.vapi.nat_ipfix(domain_id=self.ipfix_domain_id,
- src_port=self.ipfix_src_port)
+ self.vapi.nat_ipfix_enable_disable(domain_id=self.ipfix_domain_id,
+ src_port=self.ipfix_src_port)
- data = "A" * 4 + "B" * 16 + "C" * 3
+ data = b"A" * 4 + b"B" * 16 + b"C" * 3
self.tcp_port_in = random.randint(1025, 65535)
pkts = self.create_stream_frag(self.pg0,
self.pg1.remote_ip4,
self.pg1.unconfig_ip4()
self.pg2.unconfig_ip4()
- self.vapi.ip_table_add_del(vrf_id1, is_add=1)
- self.vapi.ip_table_add_del(vrf_id2, is_add=1)
+ self.vapi.ip_table_add_del(is_add=1, table_id=vrf_id1)
+ self.vapi.ip_table_add_del(is_add=1, table_id=vrf_id2)
self.pg1.set_table_ip4(vrf_id1)
self.pg2.set_table_ip4(vrf_id2)
self.pg1.config_ip4()
self.pg1.resolve_arp()
self.pg2.resolve_arp()
- @unittest.skipUnless(running_extended_tests(), "part of extended tests")
+ @unittest.skipUnless(running_extended_tests, "part of extended tests")
def test_session_timeout(self):
""" NAT44 session timeouts """
self.nat44_add_address(self.nat_addr)
# Negotiated MSS value smaller than configured - unchanged
self.verify_mss_value(capture[0], 1400)
+ @unittest.skipUnless(running_extended_tests, "part of extended tests")
+ def test_ha_send(self):
+ """ Send HA session synchronization events (active) """
+ self.nat44_add_address(self.nat_addr)
+ self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index)
+ self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index,
+ is_inside=0)
+ self.vapi.nat_ha_set_listener(self.pg3.local_ip4, port=12345)
+ self.vapi.nat_ha_set_failover(self.pg3.remote_ip4, port=12346)
+ bind_layers(UDP, HANATStateSync, sport=12345)
+
+ # create sessions
+ pkts = self.create_stream_in(self.pg0, self.pg1)
+ self.pg0.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ capture = self.pg1.get_capture(len(pkts))
+ self.verify_capture_out(capture)
+ # active send HA events
+ self.vapi.nat_ha_flush()
+ stats = self.statistics.get_counter('/nat44/ha/add-event-send')
+ self.assertEqual(stats[0][0], 3)
+ capture = self.pg3.get_capture(1)
+ p = capture[0]
+ self.assert_packet_checksums_valid(p)
+ try:
+ ip = p[IP]
+ udp = p[UDP]
+ hanat = p[HANATStateSync]
+ except IndexError:
+ self.logger.error(ppp("Invalid packet:", p))
+ raise
+ else:
+ self.assertEqual(ip.src, self.pg3.local_ip4)
+ self.assertEqual(ip.dst, self.pg3.remote_ip4)
+ self.assertEqual(udp.sport, 12345)
+ self.assertEqual(udp.dport, 12346)
+ self.assertEqual(hanat.version, 1)
+ self.assertEqual(hanat.thread_index, 0)
+ self.assertEqual(hanat.count, 3)
+ seq = hanat.sequence_number
+ for event in hanat.events:
+ self.assertEqual(event.event_type, 1)
+ self.assertEqual(event.in_addr, self.pg0.remote_ip4)
+ self.assertEqual(event.out_addr, self.nat_addr)
+ self.assertEqual(event.fib_index, 0)
+
+ # ACK received events
+ ack = (Ether(dst=self.pg3.local_mac, src=self.pg3.remote_mac) /
+ IP(src=self.pg3.remote_ip4, dst=self.pg3.local_ip4) /
+ UDP(sport=12346, dport=12345) /
+ HANATStateSync(sequence_number=seq, flags='ACK'))
+ self.pg3.add_stream(ack)
+ self.pg_start()
+ stats = self.statistics.get_counter('/nat44/ha/ack-recv')
+ self.assertEqual(stats[0][0], 1)
+
+ # delete one session
+ self.pg_enable_capture(self.pg_interfaces)
+ self.vapi.nat44_del_session(self.pg0.remote_ip4n, self.tcp_port_in,
+ IP_PROTOS.tcp)
+ self.vapi.nat_ha_flush()
+ stats = self.statistics.get_counter('/nat44/ha/del-event-send')
+ self.assertEqual(stats[0][0], 1)
+ capture = self.pg3.get_capture(1)
+ p = capture[0]
+ try:
+ hanat = p[HANATStateSync]
+ except IndexError:
+ self.logger.error(ppp("Invalid packet:", p))
+ raise
+ else:
+ self.assertGreater(hanat.sequence_number, seq)
+
+ # do not send ACK, active retry send HA event again
+ self.pg_enable_capture(self.pg_interfaces)
+ sleep(12)
+ stats = self.statistics.get_counter('/nat44/ha/retry-count')
+ self.assertEqual(stats[0][0], 3)
+ stats = self.statistics.get_counter('/nat44/ha/missed-count')
+ self.assertEqual(stats[0][0], 1)
+ capture = self.pg3.get_capture(3)
+ for packet in capture:
+ self.assertEqual(packet, p)
+
+ # session counters refresh
+ pkts = self.create_stream_out(self.pg1)
+ self.pg1.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ self.pg0.get_capture(2)
+ self.vapi.nat_ha_flush()
+ stats = self.statistics.get_counter('/nat44/ha/refresh-event-send')
+ self.assertEqual(stats[0][0], 2)
+ capture = self.pg3.get_capture(1)
+ p = capture[0]
+ self.assert_packet_checksums_valid(p)
+ try:
+ ip = p[IP]
+ udp = p[UDP]
+ hanat = p[HANATStateSync]
+ except IndexError:
+ self.logger.error(ppp("Invalid packet:", p))
+ raise
+ else:
+ self.assertEqual(ip.src, self.pg3.local_ip4)
+ self.assertEqual(ip.dst, self.pg3.remote_ip4)
+ self.assertEqual(udp.sport, 12345)
+ self.assertEqual(udp.dport, 12346)
+ self.assertEqual(hanat.version, 1)
+ self.assertEqual(hanat.count, 2)
+ seq = hanat.sequence_number
+ for event in hanat.events:
+ self.assertEqual(event.event_type, 3)
+ self.assertEqual(event.out_addr, self.nat_addr)
+ self.assertEqual(event.fib_index, 0)
+ self.assertEqual(event.total_pkts, 2)
+ self.assertGreater(event.total_bytes, 0)
+
+ ack = (Ether(dst=self.pg3.local_mac, src=self.pg3.remote_mac) /
+ IP(src=self.pg3.remote_ip4, dst=self.pg3.local_ip4) /
+ UDP(sport=12346, dport=12345) /
+ HANATStateSync(sequence_number=seq, flags='ACK'))
+ self.pg3.add_stream(ack)
+ self.pg_start()
+ stats = self.statistics.get_counter('/nat44/ha/ack-recv')
+ self.assertEqual(stats[0][0], 2)
+
+ def test_ha_recv(self):
+ """ Receive HA session synchronization events (passive) """
+ self.nat44_add_address(self.nat_addr)
+ self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index)
+ self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index,
+ is_inside=0)
+ self.vapi.nat_ha_set_listener(self.pg3.local_ip4, port=12345)
+ bind_layers(UDP, HANATStateSync, sport=12345)
+
+ self.tcp_port_out = random.randint(1025, 65535)
+ self.udp_port_out = random.randint(1025, 65535)
+
+ # send HA session add events to failover/passive
+ p = (Ether(dst=self.pg3.local_mac, src=self.pg3.remote_mac) /
+ IP(src=self.pg3.remote_ip4, dst=self.pg3.local_ip4) /
+ UDP(sport=12346, dport=12345) /
+ HANATStateSync(sequence_number=1, events=[
+ Event(event_type='add', protocol='tcp',
+ in_addr=self.pg0.remote_ip4, out_addr=self.nat_addr,
+ in_port=self.tcp_port_in, out_port=self.tcp_port_out,
+ eh_addr=self.pg1.remote_ip4,
+ ehn_addr=self.pg1.remote_ip4,
+ eh_port=self.tcp_external_port,
+ ehn_port=self.tcp_external_port, fib_index=0),
+ Event(event_type='add', protocol='udp',
+ in_addr=self.pg0.remote_ip4, out_addr=self.nat_addr,
+ in_port=self.udp_port_in, out_port=self.udp_port_out,
+ eh_addr=self.pg1.remote_ip4,
+ ehn_addr=self.pg1.remote_ip4,
+ eh_port=self.udp_external_port,
+ ehn_port=self.udp_external_port, fib_index=0)]))
+
+ self.pg3.add_stream(p)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ # receive ACK
+ capture = self.pg3.get_capture(1)
+ p = capture[0]
+ try:
+ hanat = p[HANATStateSync]
+ except IndexError:
+ self.logger.error(ppp("Invalid packet:", p))
+ raise
+ else:
+ self.assertEqual(hanat.sequence_number, 1)
+ self.assertEqual(hanat.flags, 'ACK')
+ self.assertEqual(hanat.version, 1)
+ self.assertEqual(hanat.thread_index, 0)
+ stats = self.statistics.get_counter('/nat44/ha/ack-send')
+ self.assertEqual(stats[0][0], 1)
+ stats = self.statistics.get_counter('/nat44/ha/add-event-recv')
+ self.assertEqual(stats[0][0], 2)
+ users = self.statistics.get_counter('/nat44/total-users')
+ self.assertEqual(users[0][0], 1)
+ sessions = self.statistics.get_counter('/nat44/total-sessions')
+ self.assertEqual(sessions[0][0], 2)
+ users = self.vapi.nat44_user_dump()
+ self.assertEqual(len(users), 1)
+ self.assertEqual(users[0].ip_address, self.pg0.remote_ip4n)
+ # there should be 2 sessions created by HA
+ sessions = self.vapi.nat44_user_session_dump(users[0].ip_address,
+ users[0].vrf_id)
+ self.assertEqual(len(sessions), 2)
+ for session in sessions:
+ self.assertEqual(session.inside_ip_address, self.pg0.remote_ip4n)
+ self.assertEqual(session.outside_ip_address, self.nat_addr_n)
+ self.assertIn(session.inside_port,
+ [self.tcp_port_in, self.udp_port_in])
+ self.assertIn(session.outside_port,
+ [self.tcp_port_out, self.udp_port_out])
+ self.assertIn(session.protocol, [IP_PROTOS.tcp, IP_PROTOS.udp])
+
+ # send HA session delete event to failover/passive
+ p = (Ether(dst=self.pg3.local_mac, src=self.pg3.remote_mac) /
+ IP(src=self.pg3.remote_ip4, dst=self.pg3.local_ip4) /
+ UDP(sport=12346, dport=12345) /
+ HANATStateSync(sequence_number=2, events=[
+ Event(event_type='del', protocol='udp',
+ in_addr=self.pg0.remote_ip4, out_addr=self.nat_addr,
+ in_port=self.udp_port_in, out_port=self.udp_port_out,
+ eh_addr=self.pg1.remote_ip4,
+ ehn_addr=self.pg1.remote_ip4,
+ eh_port=self.udp_external_port,
+ ehn_port=self.udp_external_port, fib_index=0)]))
+
+ self.pg3.add_stream(p)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ # receive ACK
+ capture = self.pg3.get_capture(1)
+ p = capture[0]
+ try:
+ hanat = p[HANATStateSync]
+ except IndexError:
+ self.logger.error(ppp("Invalid packet:", p))
+ raise
+ else:
+ self.assertEqual(hanat.sequence_number, 2)
+ self.assertEqual(hanat.flags, 'ACK')
+ self.assertEqual(hanat.version, 1)
+ users = self.vapi.nat44_user_dump()
+ self.assertEqual(len(users), 1)
+ self.assertEqual(users[0].ip_address, self.pg0.remote_ip4n)
+ # now we should have only 1 session, 1 deleted by HA
+ sessions = self.vapi.nat44_user_session_dump(users[0].ip_address,
+ users[0].vrf_id)
+ self.assertEqual(len(sessions), 1)
+ stats = self.statistics.get_counter('/nat44/ha/del-event-recv')
+ self.assertEqual(stats[0][0], 1)
+
+ stats = self.statistics.get_counter('/err/nat-ha/pkts-processed')
+ self.assertEqual(stats, 2)
+
+ # send HA session refresh event to failover/passive
+ p = (Ether(dst=self.pg3.local_mac, src=self.pg3.remote_mac) /
+ IP(src=self.pg3.remote_ip4, dst=self.pg3.local_ip4) /
+ UDP(sport=12346, dport=12345) /
+ HANATStateSync(sequence_number=3, events=[
+ Event(event_type='refresh', protocol='tcp',
+ in_addr=self.pg0.remote_ip4, out_addr=self.nat_addr,
+ in_port=self.tcp_port_in, out_port=self.tcp_port_out,
+ eh_addr=self.pg1.remote_ip4,
+ ehn_addr=self.pg1.remote_ip4,
+ eh_port=self.tcp_external_port,
+ ehn_port=self.tcp_external_port, fib_index=0,
+ total_bytes=1024, total_pkts=2)]))
+ self.pg3.add_stream(p)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ # receive ACK
+ capture = self.pg3.get_capture(1)
+ p = capture[0]
+ try:
+ hanat = p[HANATStateSync]
+ except IndexError:
+ self.logger.error(ppp("Invalid packet:", p))
+ raise
+ else:
+ self.assertEqual(hanat.sequence_number, 3)
+ self.assertEqual(hanat.flags, 'ACK')
+ self.assertEqual(hanat.version, 1)
+ users = self.vapi.nat44_user_dump()
+ self.assertEqual(len(users), 1)
+ self.assertEqual(users[0].ip_address, self.pg0.remote_ip4n)
+ sessions = self.vapi.nat44_user_session_dump(users[0].ip_address,
+ users[0].vrf_id)
+ self.assertEqual(len(sessions), 1)
+ session = sessions[0]
+ self.assertEqual(session.total_bytes, 1024)
+ self.assertEqual(session.total_pkts, 2)
+ stats = self.statistics.get_counter('/nat44/ha/refresh-event-recv')
+ self.assertEqual(stats[0][0], 1)
+
+ stats = self.statistics.get_counter('/err/nat-ha/pkts-processed')
+ self.assertEqual(stats, 3)
+
+ # send packet to test session created by HA
+ p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
+ IP(src=self.pg1.remote_ip4, dst=self.nat_addr) /
+ TCP(sport=self.tcp_external_port, dport=self.tcp_port_out))
+ self.pg1.add_stream(p)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ capture = self.pg0.get_capture(1)
+ p = capture[0]
+ try:
+ ip = p[IP]
+ tcp = p[TCP]
+ except IndexError:
+ self.logger.error(ppp("Invalid packet:", p))
+ raise
+ else:
+ self.assertEqual(ip.src, self.pg1.remote_ip4)
+ self.assertEqual(ip.dst, self.pg0.remote_ip4)
+ self.assertEqual(tcp.sport, self.tcp_external_port)
+ self.assertEqual(tcp.dport, self.tcp_port_in)
+
def tearDown(self):
super(TestNAT44, self).tearDown()
if not self.vpp_dead:
self.logger.info(self.vapi.cli("show nat timeouts"))
self.logger.info(
self.vapi.cli("show nat addr-port-assignment-alg"))
+ self.logger.info(self.vapi.cli("show nat ha"))
self.clear_nat44()
self.vapi.cli("clear logging")
cls.pg4.generate_remote_hosts(2)
cls.pg4.config_ip4()
ip_addr_n = socket.inet_pton(socket.AF_INET, "10.0.0.1")
- cls.vapi.sw_interface_add_del_address(cls.pg4.sw_if_index,
- ip_addr_n,
- 24)
+ cls.vapi.sw_interface_add_del_address(
+ sw_if_index=cls.pg4.sw_if_index, address=ip_addr_n,
+ address_length=24)
cls.pg4.admin_up()
cls.pg4.resolve_arp()
cls.pg4._remote_hosts[1]._ip4 = cls.pg4._remote_hosts[0]._ip4
cls.pg4.resolve_arp()
zero_ip4n = socket.inet_pton(socket.AF_INET, "0.0.0.0")
- cls.vapi.ip_table_add_del(1, is_add=1)
+ cls.vapi.ip_table_add_del(is_add=1, table_id=1)
cls.pg5._local_ip4 = "10.1.1.1"
cls.pg5._local_ip4n = socket.inet_pton(socket.AF_INET,
cls.pg5.admin_up()
cls.vapi.ip_add_del_route(dst_address=cls.pg5.remote_ip4n,
dst_address_length=32,
- table_id=1,
+ next_hop_address=zero_ip4n,
next_hop_sw_if_index=cls.pg5.sw_if_index,
- next_hop_address=zero_ip4n)
+ table_id=1)
cls.pg6._local_ip4 = "10.1.2.1"
cls.pg6._local_ip4n = socket.inet_pton(socket.AF_INET,
cls.pg6.admin_up()
cls.vapi.ip_add_del_route(dst_address=cls.pg6.remote_ip4n,
dst_address_length=32,
- table_id=1,
+ next_hop_address=zero_ip4n,
next_hop_sw_if_index=cls.pg6.sw_if_index,
- next_hop_address=zero_ip4n)
+ table_id=1)
cls.vapi.ip_add_del_route(dst_address=cls.pg6.remote_ip4n,
dst_address_length=16,
- next_hop_address=zero_ip4n,
- table_id=0,
+ next_hop_address=zero_ip4n, table_id=0,
next_hop_table_id=1)
cls.vapi.ip_add_del_route(dst_address=zero_ip4n,
dst_address_length=0,
- next_hop_address=zero_ip4n,
- table_id=1,
+ next_hop_address=zero_ip4n, table_id=1,
next_hop_table_id=0)
cls.vapi.ip_add_del_route(dst_address=zero_ip4n,
dst_address_length=0,
- table_id=0,
+ next_hop_address=cls.pg1.local_ip4n,
next_hop_sw_if_index=cls.pg1.sw_if_index,
- next_hop_address=cls.pg1.local_ip4n)
+ table_id=0)
cls.pg5.resolve_arp()
cls.pg6.resolve_arp()
self.assertEqual(1, nat_config.endpoint_dependent)
# in2out
+ tcpn = self.statistics.get_counter(
+ '/err/nat44-ed-in2out-slowpath/TCP packets')
+ udpn = self.statistics.get_counter(
+ '/err/nat44-ed-in2out-slowpath/UDP packets')
+ icmpn = self.statistics.get_counter(
+ '/err/nat44-ed-in2out-slowpath/ICMP packets')
+ totaln = self.statistics.get_counter(
+ '/err/nat44-ed-in2out-slowpath/good in2out packets processed')
+
pkts = self.create_stream_in(self.pg0, self.pg1)
self.pg0.add_stream(pkts)
self.pg_enable_capture(self.pg_interfaces)
capture = self.pg1.get_capture(len(pkts))
self.verify_capture_out(capture)
+ err = self.statistics.get_counter(
+ '/err/nat44-ed-in2out-slowpath/TCP packets')
+ self.assertEqual(err - tcpn, 1)
+ err = self.statistics.get_counter(
+ '/err/nat44-ed-in2out-slowpath/UDP packets')
+ self.assertEqual(err - udpn, 1)
+ err = self.statistics.get_counter(
+ '/err/nat44-ed-in2out-slowpath/ICMP packets')
+ self.assertEqual(err - icmpn, 1)
+ err = self.statistics.get_counter(
+ '/err/nat44-ed-in2out-slowpath/good in2out packets processed')
+ self.assertEqual(err - totaln, 3)
+
# out2in
+ tcpn = self.statistics.get_counter('/err/nat44-ed-out2in/TCP packets')
+ udpn = self.statistics.get_counter('/err/nat44-ed-out2in/UDP packets')
+ icmpn = self.statistics.get_counter(
+ '/err/nat44-ed-out2in-slowpath/ICMP packets')
+ totaln = self.statistics.get_counter(
+ '/err/nat44-ed-out2in/good out2in packets processed')
+
pkts = self.create_stream_out(self.pg1)
self.pg1.add_stream(pkts)
self.pg_enable_capture(self.pg_interfaces)
capture = self.pg0.get_capture(len(pkts))
self.verify_capture_in(capture, self.pg0)
+ err = self.statistics.get_counter('/err/nat44-ed-out2in/TCP packets')
+ self.assertEqual(err - tcpn, 1)
+ err = self.statistics.get_counter('/err/nat44-ed-out2in/UDP packets')
+ self.assertEqual(err - udpn, 1)
+ err = self.statistics.get_counter(
+ '/err/nat44-ed-out2in-slowpath/ICMP packets')
+ self.assertEqual(err - icmpn, 1)
+ err = self.statistics.get_counter(
+ '/err/nat44-ed-out2in/good out2in packets processed')
+ self.assertEqual(err - totaln, 2)
+
+ users = self.statistics.get_counter('/nat44/total-users')
+ self.assertEqual(users[0][0], 1)
+ sessions = self.statistics.get_counter('/nat44/total-sessions')
+ self.assertEqual(sessions[0][0], 3)
+
def test_forwarding(self):
""" NAT44 forwarding test """
sessions = self.vapi.nat44_user_session_dump(server.ip4n, 0)
self.assertEqual(len(sessions), 0)
- @unittest.skipUnless(running_extended_tests(), "part of extended tests")
+ @unittest.skipUnless(running_extended_tests, "part of extended tests")
def test_static_lb_multi_clients(self):
""" NAT44 local service load balancing - multiple clients"""
local_port = 8080
server1 = self.pg0.remote_hosts[0]
server2 = self.pg0.remote_hosts[1]
+ server3 = self.pg0.remote_hosts[2]
locals = [{'addr': server1.ip4n,
'port': local_port,
server1_n += 1
else:
server2_n += 1
- self.assertTrue(server1_n > server2_n)
+ self.assertGreater(server1_n, server2_n)
+
+ # add new back-end
+ self.vapi.nat44_lb_static_mapping_add_del_local(external_addr_n,
+ external_port,
+ server3.ip4n,
+ local_port,
+ IP_PROTOS.tcp,
+ 20)
+ server1_n = 0
+ server2_n = 0
+ server3_n = 0
+ clients = ip4_range(self.pg1.remote_ip4, 60, 110)
+ pkts = []
+ for client in clients:
+ p = (Ether(src=self.pg1.remote_mac, dst=self.pg1.local_mac) /
+ IP(src=client, dst=self.nat_addr) /
+ TCP(sport=12346, dport=external_port))
+ pkts.append(p)
+ self.assertGreater(len(pkts), 0)
+ self.pg1.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ capture = self.pg0.get_capture(len(pkts))
+ for p in capture:
+ if p[IP].dst == server1.ip4:
+ server1_n += 1
+ elif p[IP].dst == server2.ip4:
+ server2_n += 1
+ else:
+ server3_n += 1
+ self.assertGreater(server1_n, 0)
+ self.assertGreater(server2_n, 0)
+ self.assertGreater(server3_n, 0)
+
+ # remove one back-end
+ self.vapi.nat44_lb_static_mapping_add_del_local(external_addr_n,
+ external_port,
+ server2.ip4n,
+ local_port,
+ IP_PROTOS.tcp,
+ 10,
+ is_add=0)
+ server1_n = 0
+ server2_n = 0
+ server3_n = 0
+ self.pg1.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ capture = self.pg0.get_capture(len(pkts))
+ for p in capture:
+ if p[IP].dst == server1.ip4:
+ server1_n += 1
+ elif p[IP].dst == server2.ip4:
+ server2_n += 1
+ else:
+ server3_n += 1
+ self.assertGreater(server1_n, 0)
+ self.assertEqual(server2_n, 0)
+ self.assertGreater(server3_n, 0)
def test_static_lb_2(self):
""" NAT44 local service load balancing (asymmetrical rule) """
try:
self.assertEqual(packet[IP].src, self.nat_addr)
self.assertEqual(packet[IP].dst, self.pg1.remote_ip4)
- self.assertTrue(packet.haslayer(GRE))
+ self.assertEqual(packet.haslayer(GRE), 1)
self.assert_packet_checksums_valid(packet)
except:
self.logger.error(ppp("Unexpected or invalid packet:", packet))
try:
self.assertEqual(packet[IP].src, self.pg1.remote_ip4)
self.assertEqual(packet[IP].dst, self.pg0.remote_ip4)
- self.assertTrue(packet.haslayer(GRE))
+ self.assertEqual(packet.haslayer(GRE), 1)
self.assert_packet_checksums_valid(packet)
except:
self.logger.error(ppp("Unexpected or invalid packet:", packet))
try:
self.assertEqual(packet[IP].src, self.nat_addr)
self.assertEqual(packet[IP].dst, server.ip4)
- self.assertTrue(packet.haslayer(GRE))
+ self.assertEqual(packet.haslayer(GRE), 1)
self.assert_packet_checksums_valid(packet)
except:
self.logger.error(ppp("Unexpected or invalid packet:", packet))
try:
self.assertEqual(packet[IP].src, server_nat_ip)
self.assertEqual(packet[IP].dst, host.ip4)
- self.assertTrue(packet.haslayer(GRE))
+ self.assertEqual(packet.haslayer(GRE), 1)
self.assert_packet_checksums_valid(packet)
except:
self.logger.error(ppp("Unexpected or invalid packet:", packet))
self.vapi.nat44_interface_add_del_output_feature(self.pg1.sw_if_index,
is_inside=0)
- # session initiaded from service host - translate
+ # session initiated from service host - translate
pkts = self.create_stream_in(self.pg0, self.pg1)
self.pg0.add_stream(pkts)
self.pg_enable_capture(self.pg_interfaces)
capture = self.pg0.get_capture(len(pkts))
self.verify_capture_in(capture, self.pg0)
- # session initiaded from remote host - do not translate
+ # session initiated from remote host - do not translate
self.tcp_port_in = 60303
self.udp_port_in = 60304
self.icmp_id_in = 60305
port_in1 = port_in
port_in2 = port_in
else:
- port_in1 = port_in+1
- port_in2 = port_in+2
+ port_in1 = port_in + 1
+ port_in2 = port_in + 2
port_out = 80
eh_port_out = 4567
def test_twice_nat_interface_addr(self):
""" Acquire twice NAT44 addresses from interface """
- self.vapi.nat44_add_interface_addr(self.pg3.sw_if_index, twice_nat=1)
+ self.vapi.nat44_add_del_interface_addr(self.pg3.sw_if_index,
+ twice_nat=1)
# no address in NAT pool
adresses = self.vapi.nat44_address_dump()
local_port, external_port, vrf_id=1,
proto=IP_PROTOS.tcp, out2in_only=1)
self.nat44_add_static_mapping(
- self.pg0.remote_ip4, external_sw_if_index=self.pg0.sw_if_index,
- local_port=local_port, vrf_id=0, external_port=external_port,
- proto=IP_PROTOS.tcp, out2in_only=1)
+ self.pg0.remote_ip4, external_sw_if_index=self.pg0.sw_if_index,
+ local_port=local_port, vrf_id=0, external_port=external_port,
+ proto=IP_PROTOS.tcp, out2in_only=1)
# from client to service (both VRF1)
p = (Ether(src=self.pg6.remote_mac, dst=self.pg6.local_mac) /
self.logger.error(ppp("Unexpected or invalid packet:", p))
raise
- @unittest.skipUnless(running_extended_tests(), "part of extended tests")
+ @unittest.skipUnless(running_extended_tests, "part of extended tests")
def test_session_timeout(self):
""" NAT44 session timeouts """
self.nat44_add_address(self.nat_addr)
pkts = []
for i in range(0, max_sessions):
- src = "10.10.%u.%u" % ((i & 0xFF00) >> 8, i & 0xFF)
+ src = "10.11.%u.%u" % ((i & 0xFF00) >> 8, i & 0xFF)
p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
IP(src=src, dst=self.pg1.remote_ip4) /
ICMP(id=1026, type='echo-request'))
nsessions = nsessions + user.nsessions
self.assertLess(nsessions, 2 * max_sessions)
- @unittest.skipUnless(running_extended_tests(), "part of extended tests")
+ @unittest.skipUnless(running_extended_tests, "part of extended tests")
def test_session_rst_timeout(self):
""" NAT44 session RST timeouts """
self.nat44_add_address(self.nat_addr)
is_inside=0)
self.vapi.nat_set_timeouts(tcp_transitory=5)
- nat44_config = self.vapi.nat_show_config()
-
self.initiate_tcp_session(self.pg0, self.pg1)
p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4) /
self.pg_start()
self.pg1.get_capture(1)
- pkts_num = nat44_config.max_translations_per_user - 1
- pkts = []
- for i in range(0, pkts_num):
- p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
- IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4) /
- UDP(sport=1025 + i, dport=53))
- pkts.append(p)
- self.pg0.add_stream(pkts)
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
- self.pg1.get_capture(pkts_num)
-
sleep(6)
p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
users = self.vapi.nat44_user_dump()
self.assertEqual(len(users), 1)
self.assertEqual(users[0].ip_address, self.pg0.remote_ip4n)
- self.assertEqual(users[0].nsessions,
- nat44_config.max_translations_per_user)
+ self.assertEqual(users[0].nsessions, 1)
- @unittest.skipUnless(running_extended_tests(), "part of extended tests")
+ @unittest.skipUnless(running_extended_tests, "part of extended tests")
def test_session_limit_per_user(self):
""" Maximum sessions per user limit """
self.nat44_add_address(self.nat_addr)
self.pg_start()
capture = self.pg1.get_capture(len(pkts))
- self.vapi.nat_ipfix(domain_id=self.ipfix_domain_id,
- src_port=self.ipfix_src_port)
+ self.vapi.nat_ipfix_enable_disable(domain_id=self.ipfix_domain_id,
+ src_port=self.ipfix_src_port)
p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4) /
self.pg_start()
self.pg1.get_capture(1)
+ def test_syslog_sess(self):
+ """ Test syslog session creation and deletion """
+ self.vapi.syslog_set_filter(SYSLOG_SEVERITY.INFO)
+ self.vapi.syslog_set_sender(self.pg2.local_ip4n, self.pg2.remote_ip4n)
+ self.nat44_add_address(self.nat_addr)
+ self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index)
+ self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index,
+ is_inside=0)
+
+ p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
+ IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4) /
+ TCP(sport=self.tcp_port_in, dport=self.tcp_external_port))
+ self.pg0.add_stream(p)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ capture = self.pg1.get_capture(1)
+ self.tcp_port_out = capture[0][TCP].sport
+ capture = self.pg2.get_capture(1)
+ self.verify_syslog_sess(capture[0][Raw].load)
+
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ self.nat44_add_address(self.nat_addr, is_add=0)
+ capture = self.pg2.get_capture(1)
+ self.verify_syslog_sess(capture[0][Raw].load, False)
+
def tearDown(self):
super(TestNAT44EndpointDependent, self).tearDown()
if not self.vpp_dead:
cls.pg1.config_ip6()
cls.pg1.resolve_ndp()
- cls.vapi.ip_add_del_route(is_ipv6=True, dst_address='\x00'*16,
+ cls.vapi.ip_add_del_route(dst_address=b'\x00' * 16,
dst_address_length=0,
next_hop_address=cls.pg1.remote_ip6n,
- next_hop_sw_if_index=cls.pg1.sw_if_index)
+ next_hop_sw_if_index=cls.pg1.sw_if_index,
+ is_ipv6=True)
except Exception:
super(TestNAT44Out2InDPO, cls).tearDownClass()
self.src_ip6_pfx_len = 96
self.vapi.map_add_domain(self.dst_ip6_pfx_n, self.dst_ip6_pfx_len,
self.src_ip6_pfx_n, self.src_ip6_pfx_len,
- '\x00\x00\x00\x00', 0, is_translation=1,
- is_rfc6052=1)
+ '\x00\x00\x00\x00', 0)
@unittest.skip('Temporary disabled')
def test_464xlat_ce(self):
:param capture: Captured packets
:param nat_ip: Translated IP address (Default use global NAT address)
- :param same_port: Sorce port number is not translated (Default False)
+ :param same_port: Source port number is not translated (Default False)
"""
if nat_ip is None:
nat_ip = self.nat_addr
self.logger.error("TCP session termination failed")
raise
- @unittest.skipUnless(running_extended_tests(), "part of extended tests")
+ @unittest.skipUnless(running_extended_tests, "part of extended tests")
def test_session_timeout(self):
""" Deterministic NAT session timeouts """
self.vapi.nat_det_add_del_map(self.pg0.remote_ip4n,
dms = self.vapi.nat_det_map_dump()
self.assertEqual(0, dms[0].ses_num)
- @unittest.skipUnless(running_extended_tests(), "part of extended tests")
+ @unittest.skipUnless(running_extended_tests, "part of extended tests")
def test_session_limit_per_user(self):
""" Deterministic NAT maximum sessions per user limit """
self.vapi.nat_det_add_del_map(self.pg0.remote_ip4n,
src_address=self.pg2.local_ip4n,
path_mtu=512,
template_interval=10)
- self.vapi.nat_ipfix()
+ self.vapi.nat_ipfix_enable_disable()
pkts = []
for port in range(1025, 2025):
"""
Clear deterministic NAT configuration.
"""
- self.vapi.nat_ipfix(enable=0)
+ self.vapi.nat_ipfix_enable_disable(enable=0)
self.vapi.nat_set_timeouts()
deterministic_mappings = self.vapi.nat_det_map_dump()
for dsm in deterministic_mappings:
cls.udp_port_out = 6304
cls.icmp_id_in = 6305
cls.icmp_id_out = 6305
+ cls.tcp_external_port = 80
cls.nat_addr = '10.0.0.3'
cls.nat_addr_n = socket.inet_pton(socket.AF_INET, cls.nat_addr)
cls.vrf1_id = 10
cls.ip6_interfaces.append(cls.pg_interfaces[2])
cls.ip4_interfaces = list(cls.pg_interfaces[1:2])
- cls.vapi.ip_table_add_del(cls.vrf1_id, is_add=1, is_ipv6=1)
+ cls.vapi.ip_table_add_del(is_ipv6=1, is_add=1,
+ table_id=cls.vrf1_id)
cls.pg_interfaces[2].set_table_ip6(cls.vrf1_id)
packet = capture[0]
try:
self.assertEqual(packet[IPv6].src, self.pg5.local_ip6)
- self.assertTrue(packet.haslayer(ICMPv6ND_NS))
+ self.assertEqual(packet.haslayer(ICMPv6ND_NS), 1)
tgt = packet[ICMPv6ND_NS].tgt
except:
self.logger.error(ppp("Unexpected or invalid packet:", packet))
try:
self.assertEqual(packet[IPv6].src, self.pg5.local_ip6)
self.assertEqual(packet[IPv6].dst, self.pg5.remote_ip6)
- self.assertTrue(packet.haslayer(ICMPv6EchoReply))
+ self.assertEqual(packet.haslayer(ICMPv6EchoReply), 1)
except:
self.logger.error(ppp("Unexpected or invalid packet:", packet))
raise
self.assertTrue(pg1_found)
features = self.vapi.cli("show interface features pg0")
- self.assertNotEqual(features.find('nat64-in2out'), -1)
+ self.assertIn('nat64-in2out', features)
features = self.vapi.cli("show interface features pg1")
- self.assertNotEqual(features.find('nat64-out2in'), -1)
+ self.assertIn('nat64-out2in', features)
self.vapi.nat64_add_del_interface(self.pg0.sw_if_index, is_add=0)
self.vapi.nat64_add_del_interface(self.pg1.sw_if_index, is_add=0)
self.assertEqual(bibe.i_port, in_port)
self.assertEqual(bibe.o_port, out_port)
self.assertEqual(static_bib_num, 1)
+ bibs = self.statistics.get_counter('/nat64/total-bibs')
+ self.assertEqual(bibs[0][0], 1)
self.vapi.nat64_add_del_static_bib(in_addr,
out_addr,
if bibe.is_static:
static_bib_num += 1
self.assertEqual(static_bib_num, 0)
+ bibs = self.statistics.get_counter('/nat64/total-bibs')
+ self.assertEqual(bibs[0][0], 0)
def test_set_timeouts(self):
""" Set NAT64 timeouts """
self.vapi.nat64_add_del_interface(self.pg1.sw_if_index, is_inside=0)
# in2out
+ tcpn = self.statistics.get_counter('/err/nat64-in2out/TCP packets')
+ udpn = self.statistics.get_counter('/err/nat64-in2out/UDP packets')
+ icmpn = self.statistics.get_counter('/err/nat64-in2out/ICMP packets')
+ totaln = self.statistics.get_counter(
+ '/err/nat64-in2out/good in2out packets processed')
+
pkts = self.create_stream_in_ip6(self.pg0, self.pg1)
self.pg0.add_stream(pkts)
self.pg_enable_capture(self.pg_interfaces)
self.verify_capture_out(capture, nat_ip=self.nat_addr,
dst_ip=self.pg1.remote_ip4)
+ err = self.statistics.get_counter('/err/nat64-in2out/TCP packets')
+ self.assertEqual(err - tcpn, 1)
+ err = self.statistics.get_counter('/err/nat64-in2out/UDP packets')
+ self.assertEqual(err - udpn, 1)
+ err = self.statistics.get_counter('/err/nat64-in2out/ICMP packets')
+ self.assertEqual(err - icmpn, 1)
+ err = self.statistics.get_counter(
+ '/err/nat64-in2out/good in2out packets processed')
+ self.assertEqual(err - totaln, 3)
+
# out2in
+ tcpn = self.statistics.get_counter('/err/nat64-out2in/TCP packets')
+ udpn = self.statistics.get_counter('/err/nat64-out2in/UDP packets')
+ icmpn = self.statistics.get_counter('/err/nat64-out2in/ICMP packets')
+ totaln = self.statistics.get_counter(
+ '/err/nat64-out2in/good out2in packets processed')
+
pkts = self.create_stream_out(self.pg1, dst_ip=self.nat_addr)
self.pg1.add_stream(pkts)
self.pg_enable_capture(self.pg_interfaces)
ip = IPv6(src=''.join(['64:ff9b::', self.pg1.remote_ip4]))
self.verify_capture_in_ip6(capture, ip[IPv6].src, self.pg0.remote_ip6)
+ err = self.statistics.get_counter('/err/nat64-out2in/TCP packets')
+ self.assertEqual(err - tcpn, 1)
+ err = self.statistics.get_counter('/err/nat64-out2in/UDP packets')
+ self.assertEqual(err - udpn, 1)
+ err = self.statistics.get_counter('/err/nat64-out2in/ICMP packets')
+ self.assertEqual(err - icmpn, 1)
+ err = self.statistics.get_counter(
+ '/err/nat64-out2in/good out2in packets processed')
+ self.assertEqual(err - totaln, 3)
+
+ bibs = self.statistics.get_counter('/nat64/total-bibs')
+ self.assertEqual(bibs[0][0], 3)
+ sessions = self.statistics.get_counter('/nat64/total-sessions')
+ self.assertEqual(sessions[0][0], 3)
+
# in2out
pkts = self.create_stream_in_ip6(self.pg0, self.pg1)
self.pg0.add_stream(pkts)
self.assertEqual(ses_num_end - ses_num_start, 3)
- @unittest.skipUnless(running_extended_tests(), "part of extended tests")
+ @unittest.skipUnless(running_extended_tests, "part of extended tests")
def test_session_timeout(self):
""" NAT64 session timeout """
self.icmp_id_in = 1234
try:
self.assertEqual(packet[IP].src, self.nat_addr)
self.assertEqual(packet[IP].dst, self.pg1.remote_ip4)
- self.assertTrue(packet.haslayer(GRE))
+ self.assertEqual(packet.haslayer(GRE), 1)
self.assert_packet_checksums_valid(packet)
except:
self.logger.error(ppp("Unexpected or invalid packet:", packet))
reass_n_start = len(reass)
# in2out
- data = 'a' * 200
+ data = b'a' * 200
pkts = self.create_stream_frag_ip6(self.pg0, self.pg1.remote_ip4,
self.tcp_port_in, 20, data)
self.pg0.add_stream(pkts)
self.assertEqual(data, p[Raw].load)
# out2in
- data = "A" * 4 + "b" * 16 + "C" * 3
+ data = b"A" * 4 + b"b" * 16 + b"C" * 3
pkts = self.create_stream_frag(self.pg1,
self.nat_addr,
20,
self.vapi.nat64_add_del_interface(self.pg1.sw_if_index, is_inside=0)
# in2out
- data = 'a' * 200
+ data = b'a' * 200
pkts = self.create_stream_frag_ip6(self.pg0, self.pg1.remote_ip4,
self.tcp_port_in, 20, data)
pkts.reverse()
self.assertEqual(data, p[Raw].load)
# out2in
- data = "A" * 4 + "B" * 16 + "C" * 3
+ data = b"A" * 4 + b"B" * 16 + b"C" * 3
pkts = self.create_stream_frag(self.pg1,
self.nat_addr,
20,
def test_interface_addr(self):
""" Acquire NAT64 pool addresses from interface """
- self.vapi.nat64_add_interface_addr(self.pg4.sw_if_index)
+ self.vapi.nat64_add_del_interface_addr(self.pg4.sw_if_index)
# no address in NAT64 pool
- adresses = self.vapi.nat44_address_dump()
- self.assertEqual(0, len(adresses))
+ addresses = self.vapi.nat44_address_dump()
+ self.assertEqual(0, len(addresses))
# configure interface address and check NAT64 address pool
self.pg4.config_ip4()
# remove interface address and check NAT64 address pool
self.pg4.unconfig_ip4()
addresses = self.vapi.nat64_pool_addr_dump()
- self.assertEqual(0, len(adresses))
+ self.assertEqual(0, len(addresses))
- @unittest.skipUnless(running_extended_tests(), "part of extended tests")
+ @unittest.skipUnless(running_extended_tests, "part of extended tests")
def test_ipfix_max_bibs_sessions(self):
""" IPFIX logging maximum session and BIB entries exceeded """
max_bibs = 1280
src_address=self.pg3.local_ip4n,
path_mtu=512,
template_interval=10)
- self.vapi.nat_ipfix(domain_id=self.ipfix_domain_id,
- src_port=self.ipfix_src_port)
+ self.vapi.nat_ipfix_enable_disable(domain_id=self.ipfix_domain_id,
+ src_port=self.ipfix_src_port)
p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
IPv6(src=src, dst=remote_host_ip6) /
src_address=self.pg3.local_ip4n,
path_mtu=512,
template_interval=10)
- self.vapi.nat_ipfix(domain_id=self.ipfix_domain_id,
- src_port=self.ipfix_src_port)
+ self.vapi.nat_ipfix_enable_disable(domain_id=self.ipfix_domain_id,
+ src_port=self.ipfix_src_port)
- data = 'a' * 200
+ data = b'a' * 200
pkts = self.create_stream_frag_ip6(self.pg0, self.pg1.remote_ip4,
self.tcp_port_in, 20, data)
pkts.reverse()
src_address=self.pg3.local_ip4n,
path_mtu=512,
template_interval=10)
- self.vapi.nat_ipfix(domain_id=self.ipfix_domain_id,
- src_port=self.ipfix_src_port)
+ self.vapi.nat_ipfix_enable_disable(domain_id=self.ipfix_domain_id,
+ src_port=self.ipfix_src_port)
# Create
p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
for p in capture:
if p.haslayer(Data):
data = ipfix.decode_data_set(p.getlayer(Set))
- if ord(data[0][230]) == 10:
+ if scapy.compat.orb(data[0][230]) == 10:
self.verify_ipfix_bib(data, 1, self.pg0.remote_ip6n)
- elif ord(data[0][230]) == 6:
+ elif scapy.compat.orb(data[0][230]) == 6:
self.verify_ipfix_nat64_ses(data,
1,
self.pg0.remote_ip6n,
self.ipfix_domain_id)
if p.haslayer(Data):
data = ipfix.decode_data_set(p.getlayer(Set))
- if ord(data[0][230]) == 11:
+ if scapy.compat.orb(data[0][230]) == 11:
self.verify_ipfix_bib(data, 0, self.pg0.remote_ip6n)
- elif ord(data[0][230]) == 7:
+ elif scapy.compat.orb(data[0][230]) == 7:
self.verify_ipfix_nat64_ses(data,
0,
self.pg0.remote_ip6n,
else:
self.logger.error(ppp("Unexpected or invalid packet: ", p))
+ def test_syslog_sess(self):
+ """ Test syslog session creation and deletion """
+ self.tcp_port_in = random.randint(1025, 65535)
+ remote_host_ip6 = self.compose_ip6(self.pg1.remote_ip4,
+ '64:ff9b::',
+ 96)
+
+ self.vapi.nat64_add_del_pool_addr_range(self.nat_addr_n,
+ self.nat_addr_n)
+ self.vapi.nat64_add_del_interface(self.pg0.sw_if_index)
+ self.vapi.nat64_add_del_interface(self.pg1.sw_if_index, is_inside=0)
+ self.vapi.syslog_set_filter(SYSLOG_SEVERITY.INFO)
+ self.vapi.syslog_set_sender(self.pg3.local_ip4n, self.pg3.remote_ip4n)
+
+ p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
+ IPv6(src=self.pg0.remote_ip6, dst=remote_host_ip6) /
+ TCP(sport=self.tcp_port_in, dport=self.tcp_external_port))
+ self.pg0.add_stream(p)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ p = self.pg1.get_capture(1)
+ self.tcp_port_out = p[0][TCP].sport
+ capture = self.pg3.get_capture(1)
+ self.verify_syslog_sess(capture[0][Raw].load, is_ip6=True)
+
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ self.vapi.nat64_add_del_pool_addr_range(self.nat_addr_n,
+ self.nat_addr_n,
+ is_add=0)
+ capture = self.pg3.get_capture(1)
+ self.verify_syslog_sess(capture[0][Raw].load, False, True)
+
def nat64_get_ses_num(self):
"""
Return number of active NAT64 sessions.
"""
Clear NAT64 configuration.
"""
- self.vapi.nat_ipfix(enable=0, src_port=self.ipfix_src_port,
- domain_id=self.ipfix_domain_id)
+ self.vapi.nat_ipfix_enable_disable(enable=0,
+ src_port=self.ipfix_src_port,
+ domain_id=self.ipfix_domain_id)
self.ipfix_src_port = 4739
self.ipfix_domain_id = 1
+ self.vapi.syslog_set_filter(SYSLOG_SEVERITY.EMERG)
+
self.vapi.nat_set_timeouts()
interfaces = self.vapi.nat64_interface_dump()
vrf_id=prefix.vrf_id,
is_add=0)
+ bibs = self.statistics.get_counter('/nat64/total-bibs')
+ self.assertEqual(bibs[0][0], 0)
+ sessions = self.statistics.get_counter('/nat64/total-sessions')
+ self.assertEqual(sessions[0][0], 0)
+
def tearDown(self):
super(TestNAT64, self).tearDown()
if not self.vpp_dead:
cls.nat_addr = '10.0.0.3'
cls.nat_addr_n = socket.inet_pton(socket.AF_INET, cls.nat_addr)
- cls.create_pg_interfaces(range(2))
+ cls.create_pg_interfaces(range(3))
cls.pg0.admin_up()
cls.pg0.config_ip4()
cls.pg0.resolve_arp()
cls.pg1.config_ip6()
cls.pg1.generate_remote_hosts(2)
cls.pg1.configure_ipv6_neighbors()
+ cls.pg2.admin_up()
+ cls.pg2.config_ip4()
+ cls.pg2.resolve_arp()
except Exception:
super(TestDSlite, cls).tearDownClass()
raise
+ def verify_syslog_apmadd(self, data, isaddr, isport, xsaddr, xsport,
+ sv6enc, proto):
+ message = data.decode('utf-8')
+ try:
+ message = SyslogMessage.parse(message)
+ except ParseError as e:
+ self.logger.error(e)
+ else:
+ self.assertEqual(message.severity, SyslogSeverity.info)
+ self.assertEqual(message.appname, 'NAT')
+ self.assertEqual(message.msgid, 'APMADD')
+ sd_params = message.sd.get('napmap')
+ self.assertTrue(sd_params is not None)
+ self.assertEqual(sd_params.get('IATYP'), 'IPv4')
+ self.assertEqual(sd_params.get('ISADDR'), isaddr)
+ self.assertEqual(sd_params.get('ISPORT'), "%d" % isport)
+ self.assertEqual(sd_params.get('XATYP'), 'IPv4')
+ self.assertEqual(sd_params.get('XSADDR'), xsaddr)
+ self.assertEqual(sd_params.get('XSPORT'), "%d" % xsport)
+ self.assertEqual(sd_params.get('PROTO'), "%d" % proto)
+ self.assertTrue(sd_params.get('SSUBIX') is not None)
+ self.assertEqual(sd_params.get('SV6ENC'), sv6enc)
+
def test_dslite(self):
""" Test DS-Lite """
nat_config = self.vapi.nat_show_config()
aftr_ip6 = '2001:db8:85a3::8a2e:370:1'
aftr_ip6_n = socket.inet_pton(socket.AF_INET6, aftr_ip6)
self.vapi.dslite_set_aftr_addr(aftr_ip6_n, aftr_ip4_n)
+ self.vapi.syslog_set_sender(self.pg2.local_ip4n, self.pg2.remote_ip4n)
# UDP
p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
self.assertEqual(capture[UDP].dport, 10000)
self.assert_packet_checksums_valid(capture)
out_port = capture[UDP].sport
+ capture = self.pg2.get_capture(1)
+ self.verify_syslog_apmadd(capture[0][Raw].load, '192.168.1.1',
+ 20000, self.nat_addr, out_port,
+ self.pg1.remote_hosts[0].ip6, IP_PROTOS.udp)
p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
IP(dst=self.nat_addr, src=self.pg0.remote_ip4) /
self.assertEqual(capture[IPv6].dst, self.pg1.remote_hosts[1].ip6)
self.assertTrue(capture.haslayer(ICMPv6EchoReply))
+ b4s = self.statistics.get_counter('/dslite/total-b4s')
+ self.assertEqual(b4s[0][0], 2)
+ sessions = self.statistics.get_counter('/dslite/total-sessions')
+ self.assertEqual(sessions[0][0], 3)
+
def tearDown(self):
super(TestDSlite, self).tearDown()
if not self.vpp_dead:
Code Review / vpp.git / blobdiff