import socket
from framework import VppTestCase, VppTestRunner
-from vpp_ip import DpoProto
+from vpp_ip import *
from vpp_ip_route import VppIpRoute, VppRoutePath
from scapy.layers.l2 import Ether, Raw
-from scapy.layers.inet import IP, UDP, ICMP
-from scapy.layers.inet6 import IPv6
+from scapy.layers.inet import IP, UDP, ICMP, TCP, fragment
+from scapy.layers.inet6 import IPv6, ICMPv6TimeExceeded
class TestMAP(VppTestCase):
#
# Add a domain that maps from pg0 to pg1
#
- map_dst = socket.inet_pton(socket.AF_INET6, map_br_pfx)
- map_src = "3001::1"
- map_src_n = socket.inet_pton(socket.AF_INET6, map_src)
- client_pfx = socket.inet_pton(socket.AF_INET, "192.168.0.0")
-
- self.vapi.map_add_domain(map_dst,
- map_br_pfx_len,
- map_src_n,
- 128,
- client_pfx,
- 16)
+ map_dst = VppIp6Prefix(map_br_pfx, map_br_pfx_len).encode()
+ map_src = VppIp6Prefix("3000::1", 128).encode()
+ client_pfx = VppIp4Prefix("192.168.0.0", 16).encode()
+ self.vapi.map_add_domain(map_dst, map_src, client_pfx)
#
# Fire in a v4 packet that will be encapped to the BR
UDP(sport=20000, dport=10000) /
Raw('\xa5' * 100))
- self.send_and_assert_encapped(v4, map_src, "2001::c0a8:0:0")
+ self.send_and_assert_encapped(v4, "3000::1", "2001::c0a8:0:0")
#
# Fire in a V6 encapped packet.
# expect a decapped packet on the inside ip4 link
#
p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
- IPv6(dst=map_src, src="2001::1") /
+ IPv6(dst='3000::1', src="2001::1") /
IP(dst=self.pg0.remote_ip4, src='192.168.1.1') /
UDP(sport=20000, dport=10000) /
Raw('\xa5' * 100))
is_ip6=1)
pre_res_route.add_vpp_config()
- self.send_and_assert_encapped(v4, map_src,
+ self.send_and_assert_encapped(v4, "3000::1",
"2001::c0a8:0:0",
dmac=self.pg1.remote_hosts[2].mac)
proto=DpoProto.DPO_PROTO_IP6)])
pre_res_route.add_vpp_config()
- self.send_and_assert_encapped(v4, map_src,
+ self.send_and_assert_encapped(v4, "3000::1",
"2001::c0a8:0:0",
dmac=self.pg1.remote_hosts[3].mac)
pre_res_route.remove_vpp_config()
self.vapi.ppcli("map params pre-resolve del ip6-nh 4001::1")
+ def validate(self, rx, expected):
+ self.assertEqual(rx, expected.__class__(str(expected)))
+
+ def payload(self, len):
+ return 'x' * len
+
+ def test_map_t(self):
+ """ MAP-T """
+
+ #
+ # Add a domain that maps from pg0 to pg1
+ #
+ map_dst = VppIp6Prefix("2001:db8::", 32).encode()
+ map_src = VppIp6Prefix("1234:5678:90ab:cdef::", 64).encode()
+ ip4_pfx = VppIp4Prefix("192.168.0.0", 24).encode()
+ self.vapi.map_add_domain(map_dst, map_src, ip4_pfx, 16, 6, 4, 1)
+
+ # Enable MAP-T on interfaces.
+
+ # self.vapi.map_if_enable_disable(1, self.pg0.sw_if_index, 1)
+ # self.vapi.map_if_enable_disable(1, self.pg1.sw_if_index, 1)
+
+ map_route = VppIpRoute(self,
+ "2001:db8::",
+ 32,
+ [VppRoutePath(self.pg1.remote_ip6,
+ self.pg1.sw_if_index,
+ proto=DpoProto.DPO_PROTO_IP6)],
+ is_ip6=1)
+ map_route.add_vpp_config()
+
+ #
+ # Send a v4 packet that will be translated
+ #
+ p_ether = Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac)
+ p_ip4 = IP(src=self.pg0.remote_ip4, dst='192.168.0.1')
+ payload = TCP(sport=0xabcd, dport=0xabcd)
+
+ p4 = (p_ether / p_ip4 / payload)
+ p6_translated = (IPv6(src="1234:5678:90ab:cdef:ac:1001:200:0",
+ dst="2001:db8:1f0::c0a8:1:f") / payload)
+ p6_translated.hlim -= 1
+ rx = self.send_and_expect(self.pg0, p4*1, self.pg1)
+ for p in rx:
+ self.validate(p[1], p6_translated)
+
+ # Send back an IPv6 packet that will be "untranslated"
+ p_ether6 = Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac)
+ p_ip6 = IPv6(src='2001:db8:1f0::c0a8:1:f',
+ dst='1234:5678:90ab:cdef:ac:1001:200:0')
+ p6 = (p_ether6 / p_ip6 / payload)
+ p4_translated = (IP(src='192.168.0.1',
+ dst=self.pg0.remote_ip4) / payload)
+ p4_translated.id = 0
+ p4_translated.ttl -= 1
+ rx = self.send_and_expect(self.pg1, p6*1, self.pg0)
+ for p in rx:
+ self.validate(p[1], p4_translated)
+
+ # IPv4 TTL
+ ip4_ttl_expired = IP(src=self.pg0.remote_ip4, dst='192.168.0.1', ttl=0)
+ p4 = (p_ether / ip4_ttl_expired / payload)
+
+ icmp4_reply = (IP(id=0, ttl=254, src=self.pg0.local_ip4,
+ dst=self.pg0.remote_ip4) /
+ ICMP(type='time-exceeded',
+ code='ttl-zero-during-transit') /
+ IP(src=self.pg0.remote_ip4,
+ dst='192.168.0.1', ttl=0) / payload)
+ rx = self.send_and_expect(self.pg0, p4*1, self.pg0)
+ for p in rx:
+ self.validate(p[1], icmp4_reply)
+
+ '''
+ This one is broken, cause it would require hairpinning...
+ # IPv4 TTL TTL1
+ ip4_ttl_expired = IP(src=self.pg0.remote_ip4, dst='192.168.0.1', ttl=1)
+ p4 = (p_ether / ip4_ttl_expired / payload)
+
+ icmp4_reply = IP(id=0, ttl=254, src=self.pg0.local_ip4,
+ dst=self.pg0.remote_ip4) / \
+ ICMP(type='time-exceeded', code='ttl-zero-during-transit' ) / \
+ IP(src=self.pg0.remote_ip4, dst='192.168.0.1', ttl=0) / payload
+ rx = self.send_and_expect(self.pg0, p4*1, self.pg0)
+ for p in rx:
+ self.validate(p[1], icmp4_reply)
+ '''
+
+ # IPv6 Hop limit
+ ip6_hlim_expired = IPv6(hlim=0, src='2001:db8:1ab::c0a8:1:ab',
+ dst='1234:5678:90ab:cdef:ac:1001:200:0')
+ p6 = (p_ether6 / ip6_hlim_expired / payload)
+
+ icmp6_reply = (IPv6(hlim=255, src=self.pg1.local_ip6,
+ dst="2001:db8:1ab::c0a8:1:ab") /
+ ICMPv6TimeExceeded(code=0) /
+ IPv6(src="2001:db8:1ab::c0a8:1:ab",
+ dst='1234:5678:90ab:cdef:ac:1001:200:0',
+ hlim=0) / payload)
+ rx = self.send_and_expect(self.pg1, p6*1, self.pg1)
+ for p in rx:
+ self.validate(p[1], icmp6_reply)
+
+ # IPv4 Well-known port
+ p_ip4 = IP(src=self.pg0.remote_ip4, dst='192.168.0.1')
+ payload = UDP(sport=200, dport=200)
+ p4 = (p_ether / p_ip4 / payload)
+ self.send_and_assert_no_replies(self.pg0, p4*1)
+
+ # IPv6 Well-known port
+ payload = UDP(sport=200, dport=200)
+ p6 = (p_ether6 / p_ip6 / payload)
+ self.send_and_assert_no_replies(self.pg1, p6*1)
+
+ # Packet fragmentation
+ payload = UDP(sport=40000, dport=4000) / self.payload(1453)
+ p4 = (p_ether / p_ip4 / payload)
+ self.pg_enable_capture()
+ self.pg0.add_stream(p4)
+ self.pg_start()
+ rx = self.pg1.get_capture(2)
+ for p in rx:
+ pass
+ # TODO: Manual validation
+ # self.validate(p[1], icmp4_reply)
+
+ # Packet fragmentation send fragments
+ payload = UDP(sport=40000, dport=4000) / self.payload(1453)
+ p4 = (p_ether / p_ip4 / payload)
+ frags = fragment(p4, fragsize=1000)
+ self.pg_enable_capture()
+ self.pg0.add_stream(frags)
+ self.pg_start()
+ rx = self.pg1.get_capture(2)
+ for p in rx:
+ pass
+ # p.show2()
+ # reass_pkt = reassemble(rx)
+ # p4_reply.ttl -= 1
+ # p4_reply.id = 256
+ # self.validate(reass_pkt, p4_reply)
+
+
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)
Code Review / vpp.git / blobdiff