diff options
| -rw-r--r-- | src/plugins/map/test/test_map_br.py | 302 |
1 files changed, 294 insertions, 8 deletions
diff --git a/src/plugins/map/test/test_map_br.py b/src/plugins/map/test/test_map_br.py index 7869e5f24f1..3d30216b6db 100644 --- a/src/plugins/map/test/test_map_br.py +++ b/src/plugins/map/test/test_map_br.py @@ -78,7 +78,9 @@ class TestMAPBR(VppTestCase): self.ipv6_map_address = ( "2001:db8:ffff:ff00:ac:1001:200:0") # 176.16.1.2 self.ipv6_map_same_rule_diff_addr = ( - "2001:db8:ffff:ff00:c6:1200:10:0") # 198.18.0.16 + "2001:db8:ffff:ff00:c6:1200:1000:0") # 198.18.0.16 + self.ipv6_map_same_rule_same_addr = ( + "2001:db8:ffff:ff00:c6:1200:c00:0") # 198.18.0.12 self.map_br_prefix = "2001:db8:f0::" self.map_br_prefix_len = 48 @@ -94,13 +96,6 @@ class TestMAPBR(VppTestCase): self.pg1.sw_if_index)]) map_route.add_vpp_config() - ip4_map_route = VppIpRoute(self, - "198.18.0.0", - 24, - [VppRoutePath(self.pg1.remote_ip4, - self.pg1.sw_if_index)]) - ip4_map_route.add_vpp_config() - # # Add a MAP BR domain that maps from pg0 to pg1. # @@ -143,6 +138,253 @@ class TestMAPBR(VppTestCase): i.unconfig_ip6() i.admin_down() + def v4_address_check(self, pkt): + self.assertEqual(pkt[IP].src, self.ipv4_map_address) + self.assertEqual(pkt[IP].dst, self.ipv4_internet_address) + + def v4_port_check(self, pkt, proto): + self.assertEqual(pkt[proto].sport, self.ipv4_udp_or_tcp_map_port) + self.assertEqual(pkt[proto].dport, self.ipv4_udp_or_tcp_internet_port) + + def v6_address_check(self, pkt): + self.assertEqual(pkt[IPv6].src, self.ipv6_map_address) + self.assertEqual(pkt[IPv6].dst, self.ipv6_cpe_address) + + def v6_port_check(self, pkt, proto): + self.assertEqual(pkt[proto].sport, self.ipv6_udp_or_tcp_internet_port) + self.assertEqual(pkt[proto].dport, self.ipv6_udp_or_tcp_map_port) + + # + # Normal translation of UDP packets v4 -> v6 direction + # Send 128 frame size packet for IPv4/UDP. + # Received packet should be translated into IPv6 packet with no + # fragment header. + # + + def test_map_t_udp_ip4_to_ip6(self): + """ MAP-T UDP IPv4 -> IPv6 """ + + eth = Ether(src=self.pg0.remote_mac, + dst=self.pg0.local_mac) + ip = IP(src=self.pg0.remote_ip4, + dst=self.ipv4_map_address, + tos=0) + udp = UDP(sport=self.ipv4_udp_or_tcp_internet_port, + dport=self.ipv4_udp_or_tcp_map_port) + payload = "a" * 82 + tx_pkt = eth / ip / udp / payload + + self.pg_send(self.pg0, tx_pkt * 1) + + rx_pkts = self.pg1.get_capture(1) + rx_pkt = rx_pkts[0] + + self.v6_address_check(rx_pkt) + self.v6_port_check(rx_pkt, UDP) + self.assertEqual(rx_pkt[IPv6].tc, 0) # IPv4 ToS passed to v6 TC + self.assertEqual(rx_pkt[IPv6].nh, IPv6(nh="UDP").nh) + + # + # Normal translation of TCP packets v4 -> v6 direction. + # Send 128 frame size packet for IPv4/TCP. + # Received packet should be translated into IPv6 packet with no + # fragment header. + # + + def test_map_t_tcp_ip4_to_ip6(self): + """ MAP-T TCP IPv4 -> IPv6 """ + + eth = Ether(src=self.pg0.remote_mac, + dst=self.pg0.local_mac) + ip = IP(src=self.pg0.remote_ip4, + dst=self.ipv4_map_address, + tos=0) + tcp = TCP(sport=self.ipv4_udp_or_tcp_internet_port, + dport=self.ipv4_udp_or_tcp_map_port) + payload = "a" * 82 + tx_pkt = eth / ip / tcp / payload + + self.pg_send(self.pg0, tx_pkt * 1) + + rx_pkts = self.pg1.get_capture(1) + rx_pkt = rx_pkts[0] + + self.v6_address_check(rx_pkt) + self.v6_port_check(rx_pkt, TCP) + self.assertEqual(rx_pkt[IPv6].tc, 0) # IPv4 ToS passed to v6 TC + self.assertEqual(rx_pkt[IPv6].nh, IPv6(nh="TCP").nh) + + # + # Normal translation of UDP packets v6 -> v4 direction + # Send 128 frame size packet for IPv6/UDP. + # Received packet should be translated into an IPv4 packet with DF=1. + # + + def test_map_t_udp_ip6_to_ip4(self): + """ MAP-T UDP IPv6 -> IPv4 """ + + eth = Ether(src=self.pg1.remote_mac, + dst=self.pg1.local_mac) + ip = IPv6(src=self.ipv6_cpe_address, + dst=self.ipv6_map_address) + udp = UDP(sport=self.ipv6_udp_or_tcp_map_port, + dport=self.ipv6_udp_or_tcp_internet_port) + payload = "a" * 82 + tx_pkt = eth / ip / udp / payload + + self.pg_send(self.pg1, tx_pkt * 1) + + rx_pkts = self.pg0.get_capture(1) + rx_pkt = rx_pkts[0] + + self.v4_address_check(rx_pkt) + self.v4_port_check(rx_pkt, UDP) + self.assertEqual(rx_pkt[IP].proto, IP(proto="udp").proto) + self.assertEqual(rx_pkt[IP].tos, 0) # IPv6 TC passed to v4 ToS + df_bit = IP(flags="DF").flags + self.assertNotEqual(rx_pkt[IP].flags & df_bit, df_bit) + + # + # Normal translation of TCP packets v6 -> v4 direction + # Send 128 frame size packet for IPv6/TCP. + # Received packet should be translated into an IPv4 packet with DF=1 + # + + def test_map_t_tcp_ip6_to_ip4(self): + """ MAP-T TCP IPv6 -> IPv4 """ + + eth = Ether(src=self.pg1.remote_mac, + dst=self.pg1.local_mac) + ip = IPv6(src=self.ipv6_cpe_address, + dst=self.ipv6_map_address) + tcp = TCP(sport=self.ipv6_udp_or_tcp_map_port, + dport=self.ipv6_udp_or_tcp_internet_port) + payload = "a" * 82 + tx_pkt = eth / ip / tcp / payload + + self.pg_send(self.pg1, tx_pkt * 1) + + rx_pkts = self.pg0.get_capture(1) + rx_pkt = rx_pkts[0] + + self.v4_address_check(rx_pkt) + self.v4_port_check(rx_pkt, TCP) + self.assertEqual(rx_pkt[IP].proto, IP(proto="tcp").proto) + self.assertEqual(rx_pkt[IP].tos, 0) # IPv6 TC passed to v4 ToS + df_bit = IP(flags="DF").flags + self.assertNotEqual(rx_pkt[IP].flags & df_bit, df_bit) + + # + # Translation of ICMP Echo Request v4 -> v6 direction + # Received packet should be translated into an IPv6 Echo Request. + # + + def test_map_t_echo_request_ip4_to_ip6(self): + """ MAP-T echo request IPv4 -> IPv6 """ + + eth = Ether(src=self.pg1.remote_mac, + dst=self.pg1.local_mac) + ip = IP(src=self.pg0.remote_ip4, + dst=self.ipv4_map_address) + icmp = ICMP(type="echo-request", + id=self.ipv6_udp_or_tcp_map_port) + payload = "H" * 10 + tx_pkt = eth / ip / icmp / payload + + self.pg_send(self.pg0, tx_pkt * 1) + + rx_pkts = self.pg1.get_capture(1) + rx_pkt = rx_pkts[0] + + self.assertEqual(rx_pkt[IPv6].nh, IPv6(nh="ICMPv6").nh) + self.assertEqual(rx_pkt[ICMPv6EchoRequest].type, + ICMPv6EchoRequest(type="Echo Request").type) + self.assertEqual(rx_pkt[ICMPv6EchoRequest].code, 0) + self.assertEqual(rx_pkt[ICMPv6EchoRequest].id, + self.ipv6_udp_or_tcp_map_port) + + # + # Translation of ICMP Echo Reply v4 -> v6 direction + # Received packet should be translated into an IPv6 Echo Reply. + # + + def test_map_t_echo_reply_ip4_to_ip6(self): + """ MAP-T echo reply IPv4 -> IPv6 """ + + eth = Ether(src=self.pg1.remote_mac, + dst=self.pg1.local_mac) + ip = IP(src=self.pg0.remote_ip4, + dst=self.ipv4_map_address) + icmp = ICMP(type="echo-reply", + id=self.ipv6_udp_or_tcp_map_port) + payload = "H" * 10 + tx_pkt = eth / ip / icmp / payload + + self.pg_send(self.pg0, tx_pkt * 1) + + rx_pkts = self.pg1.get_capture(1) + rx_pkt = rx_pkts[0] + + self.assertEqual(rx_pkt[IPv6].nh, IPv6(nh="ICMPv6").nh) + self.assertEqual(rx_pkt[ICMPv6EchoReply].type, + ICMPv6EchoReply(type="Echo Reply").type) + self.assertEqual(rx_pkt[ICMPv6EchoReply].code, 0) + self.assertEqual(rx_pkt[ICMPv6EchoReply].id, + self.ipv6_udp_or_tcp_map_port) + + # + # Translation of ICMP Echo Request v6 -> v4 direction + # Received packet should be translated into an IPv4 Echo Request. + # + + def test_map_t_echo_request_ip6_to_ip4(self): + """ MAP-T echo request IPv6 -> IPv4 """ + + eth = Ether(src=self.pg1.remote_mac, + dst=self.pg1.local_mac) + ip = IPv6(src=self.ipv6_cpe_address, + dst=self.ipv6_map_address) + icmp = ICMPv6EchoRequest() + icmp.id = self.ipv6_udp_or_tcp_map_port + payload = "H" * 10 + tx_pkt = eth / ip / icmp / payload + + self.pg_send(self.pg1, tx_pkt * 1) + + rx_pkts = self.pg0.get_capture(1) + rx_pkt = rx_pkts[0] + + self.assertEqual(rx_pkt[IP].proto, IP(proto="icmp").proto) + self.assertEqual(rx_pkt[ICMP].type, ICMP(type="echo-request").type) + self.assertEqual(rx_pkt[ICMP].code, 0) + self.assertEqual(rx_pkt[ICMP].id, self.ipv6_udp_or_tcp_map_port) + + # + # Translation of ICMP Echo Reply v6 -> v4 direction + # Received packet should be translated into an IPv4 Echo Reply. + # + + def test_map_t_echo_reply_ip6_to_ip4(self): + """ MAP-T echo reply IPv6 -> IPv4 """ + + eth = Ether(src=self.pg1.remote_mac, + dst=self.pg1.local_mac) + ip = IPv6(src=self.ipv6_cpe_address, + dst=self.ipv6_map_address) + icmp = ICMPv6EchoReply(id=self.ipv6_udp_or_tcp_map_port) + payload = "H" * 10 + tx_pkt = eth / ip / icmp / payload + + self.pg_send(self.pg1, tx_pkt * 1) + + rx_pkts = self.pg0.get_capture(1) + rx_pkt = rx_pkts[0] + + self.assertEqual(rx_pkt[IP].proto, IP(proto="icmp").proto) + self.assertEqual(rx_pkt[ICMP].type, ICMP(type="echo-reply").type) + self.assertEqual(rx_pkt[ICMP].code, 0) + self.assertEqual(rx_pkt[ICMP].id, self.ipv6_udp_or_tcp_map_port) + # # Spoofed IPv4 Source Address v6 -> v4 direction # Send a packet with a wrong IPv4 address embedded in bits 72-103. @@ -261,5 +503,49 @@ class TestMAPBR(VppTestCase): self.pg0.get_capture(0, timeout=1) self.pg0.assert_nothing_captured("Should drop IPv6 spoof port PSID") + # + # Map to Map - same rule, different address + # + + @unittest.skip("Fixme: correct behavior needs clarification") + def test_map_t_same_rule_diff_addr_ip6_to_ip4(self): + """ MAP-T same rule, diff addr IPv6 -> IPv6 """ + + eth = Ether(src=self.pg1.remote_mac, + dst=self.pg1.local_mac) + ip = IPv6(src=self.ipv6_cpe_address, + dst=self.ipv6_map_same_rule_diff_addr) + udp = UDP(sport=self.ipv6_udp_or_tcp_map_port, + dport=1025) + payload = "a" * 82 + tx_pkt = eth / ip / udp / payload + + self.pg_send(self.pg1, tx_pkt * 1) + + rx_pkts = self.pg1.get_capture(1) + rx_pkt = rx_pkts[0] + + # + # Map to Map - same rule, same address + # + + @unittest.skip("Fixme: correct behavior needs clarification") + def test_map_t_same_rule_same_addr_ip6_to_ip4(self): + """ MAP-T same rule, same addr IPv6 -> IPv6 """ + + eth = Ether(src=self.pg1.remote_mac, + dst=self.pg1.local_mac) + ip = IPv6(src=self.ipv6_cpe_address, + dst=self.ipv6_map_same_rule_same_addr) + udp = UDP(sport=self.ipv6_udp_or_tcp_map_port, + dport=1025) + payload = "a" * 82 + tx_pkt = eth / ip / udp / payload + + self.pg_send(self.pg1, tx_pkt * 1) + + rx_pkts = self.pg1.get_capture(1) + rx_pkt = rx_pkts[0] + if __name__ == '__main__': unittest.main(testRunner=VppTestRunner) |