#!/usr/bin/env python
import unittest
-import socket
from framework import VppTestCase, VppTestRunner
from vpp_ip import DpoProto
from vpp_ip_route import VppIpRoute, VppRoutePath
+import scapy.compat
from scapy.layers.l2 import Ether, Raw
from scapy.layers.inet import IP, UDP, ICMP, TCP, fragment
from scapy.layers.inet6 import IPv6, ICMPv6TimeExceeded
#
# 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 = '2001::/64'
+ map_src = '3000::1/128'
+ client_pfx = '192.168.0.0/16'
+ self.vapi.map_add_domain(map_dst, client_pfx, map_src)
+
+ # Enable MAP on interface.
+ self.vapi.map_if_enable_disable(is_enable=1,
+ sw_if_index=self.pg0.sw_if_index,
+ is_translation=0)
+
+ # Ensure MAP doesn't steal all packets!
+ v4 = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
+ IP(src=self.pg0.remote_ip4, dst=self.pg0.remote_ip4) /
+ UDP(sport=20000, dport=10000) /
+ Raw('\xa5' * 100))
+ rx = self.send_and_expect(self.pg0, v4*1, self.pg0)
+ v4_reply = v4[1]
+ v4_reply.ttl -= 1
+ for p in rx:
+ self.validate(p[1], v4_reply)
#
# 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")
+
+ # Enable MAP on interface.
+ self.vapi.map_if_enable_disable(is_enable=1,
+ sw_if_index=self.pg1.sw_if_index,
+ is_translation=0)
+
+ # Ensure MAP doesn't steal all packets
+ v6 = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
+ IPv6(src=self.pg1.remote_ip6, dst=self.pg1.remote_ip6) /
+ UDP(sport=20000, dport=10000) /
+ Raw('\xa5' * 100))
+ rx = self.send_and_expect(self.pg1, v6*1, self.pg1)
+ v6_reply = v6[1]
+ v6_reply.hlim -= 1
+ for p in rx:
+ self.validate(p[1], v6_reply)
#
# 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))
self.vapi.ppcli("map params pre-resolve ip6-nh 4001::1")
self.send_and_assert_no_replies(self.pg0, v4,
- "resovled via default route")
+ "resolved via default route")
#
# Add a route to 4001::1. Expect the encapped traffic to be
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)
self.vapi.ppcli("map params pre-resolve del ip6-nh 4001::1")
def validate(self, rx, expected):
- self.assertEqual(rx, expected.__class__(str(expected)))
+ self.assertEqual(rx, expected.__class__(scapy.compat.raw(expected)))
def payload(self, len):
return 'x' * len
#
# Add a domain that maps from pg0 to pg1
#
- map_dst = socket.inet_pton(socket.AF_INET6, "2001:db8::")
- map_src = socket.inet_pton(socket.AF_INET6, "1234:5678:90ab:cdef::")
- ip4_pfx = socket.inet_pton(socket.AF_INET, "192.168.0.0")
+ map_dst = '2001:db8::/32'
+ map_src = '1234:5678:90ab:cdef::/64'
+ ip4_pfx = '192.168.0.0/24'
- self.vapi.map_add_domain(map_dst, 32, map_src, 64, ip4_pfx,
- 24, 16, 6, 4, 1)
+ self.vapi.map_add_domain(map_dst, ip4_pfx, map_src,
+ 16, 6, 4, mtu=1500)
# 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)
+ self.vapi.map_if_enable_disable(is_enable=1,
+ sw_if_index=self.pg0.sw_if_index,
+ is_translation=1)
+ self.vapi.map_if_enable_disable(is_enable=1,
+ sw_if_index=self.pg1.sw_if_index,
+ is_translation=1)
+
+ # Ensure MAP doesn't steal all packets!
+ v4 = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
+ IP(src=self.pg0.remote_ip4, dst=self.pg0.remote_ip4) /
+ UDP(sport=20000, dport=10000) /
+ Raw('\xa5' * 100))
+ rx = self.send_and_expect(self.pg0, v4*1, self.pg0)
+ v4_reply = v4[1]
+ v4_reply.ttl -= 1
+ for p in rx:
+ self.validate(p[1], v4_reply)
+ # Ensure MAP doesn't steal all packets
+ v6 = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
+ IPv6(src=self.pg1.remote_ip6, dst=self.pg1.remote_ip6) /
+ UDP(sport=20000, dport=10000) /
+ Raw('\xa5' * 100))
+ rx = self.send_and_expect(self.pg1, v6*1, self.pg1)
+ v6_reply = v6[1]
+ v6_reply.hlim -= 1
+ for p in rx:
+ self.validate(p[1], v6_reply)
map_route = VppIpRoute(self,
"2001:db8::",
# p4_reply.id = 256
# self.validate(reass_pkt, p4_reply)
+ # TCP MSS clamping
+ self.vapi.map_param_set_tcp(1300)
+
+ #
+ # Send a v4 TCP SYN packet that will be translated and MSS clamped
+ #
+ 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, flags="S",
+ options=[('MSS', 1460)])
+
+ 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
+ p6_translated[TCP].options = [('MSS', 1300)]
+ 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
+ p4_translated[TCP].options = [('MSS', 1300)]
+ rx = self.send_and_expect(self.pg1, p6*1, self.pg0)
+ for p in rx:
+ self.validate(p[1], p4_translated)
+
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)
Code Review / vpp.git / blobdiff