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authorNeale Ranns <nranns@cisco.com>2019-12-20 00:54:57 +0000
committerNeale Ranns <nranns@cisco.com>2020-01-04 04:50:47 +0000
commit02950406c49a743f631395ed52073921744e1afd (patch)
tree2891403e2fe8cc879f43d4e46e314a2f412763cb /test/test_ipsec_tun_if_esp.py
parent2f04cb9f142abef82cd379432cecdafef9e776db (diff)
ipsec: Targeted unit testing
Type: fix 1 - big packets; chained buffers and those without enoguh space to add ESP header 2 - IPv6 extension headers in packets that are encrypted/decrypted 3 - Interface protection with SAs that have null algorithms Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: Ie330861fb06a9b248d9dcd5c730e21326ac8e973
Diffstat (limited to 'test/test_ipsec_tun_if_esp.py')
-rw-r--r--test/test_ipsec_tun_if_esp.py320
1 files changed, 315 insertions, 5 deletions
diff --git a/test/test_ipsec_tun_if_esp.py b/test/test_ipsec_tun_if_esp.py
index eefd477c71d..469ebc7fc87 100644
--- a/test/test_ipsec_tun_if_esp.py
+++ b/test/test_ipsec_tun_if_esp.py
@@ -304,6 +304,7 @@ class TestIpsec4MultiTunIfEsp(TemplateIpsec, IpsecTun4):
p.scapy_tra_spi = p.scapy_tra_spi + ii
p.vpp_tra_sa_id = p.vpp_tra_sa_id + ii
p.vpp_tra_spi = p.vpp_tra_spi + ii
+ p.tun_dst = self.pg0.remote_hosts[ii].ip4
p.tun_if = VppIpsecTunInterface(self, self.pg0, p.vpp_tun_spi,
p.scapy_tun_spi,
@@ -311,7 +312,7 @@ class TestIpsec4MultiTunIfEsp(TemplateIpsec, IpsecTun4):
p.crypt_key, p.crypt_key,
p.auth_algo_vpp_id, p.auth_key,
p.auth_key,
- dst=self.pg0.remote_hosts[ii].ip4)
+ dst=p.tun_dst)
p.tun_if.add_vpp_config()
p.tun_if.admin_up()
p.tun_if.config_ip4()
@@ -334,6 +335,27 @@ class TestIpsec4MultiTunIfEsp(TemplateIpsec, IpsecTun4):
c = p.tun_if.get_tx_stats()
self.assertEqual(c['packets'], 127)
+ def test_tun_rr_44(self):
+ """ Round-robin packets acrros multiple interface """
+ tx = []
+ for p in self.multi_params:
+ tx = tx + self.gen_encrypt_pkts(p.scapy_tun_sa, self.tun_if,
+ src=p.remote_tun_if_host,
+ dst=self.pg1.remote_ip4)
+ rxs = self.send_and_expect(self.tun_if, tx, self.pg1)
+
+ for rx, p in zip(rxs, self.multi_params):
+ self.verify_decrypted(p, [rx])
+
+ tx = []
+ for p in self.multi_params:
+ tx = tx + self.gen_pkts(self.pg1, src=self.pg1.remote_ip4,
+ dst=p.remote_tun_if_host)
+ rxs = self.send_and_expect(self.pg1, tx, self.tun_if)
+
+ for rx, p in zip(rxs, self.multi_params):
+ self.verify_encrypted(p, p.vpp_tun_sa, [rx])
+
class TestIpsec4TunIfEspAll(TemplateIpsec, IpsecTun4):
""" IPsec IPv4 Tunnel interface all Algos """
@@ -521,6 +543,69 @@ class TestIpsec4TunIfEspAll(TemplateIpsec, IpsecTun4):
p.tun_sa_in.remove_vpp_config()
+class TestIpsec4TunIfEspNoAlgo(TemplateIpsec, IpsecTun4):
+ """ IPsec IPv4 Tunnel interface all Algos """
+
+ encryption_type = ESP
+ tun4_encrypt_node_name = "esp4-encrypt-tun"
+ tun4_decrypt_node_name = "esp4-decrypt-tun"
+
+ def config_network(self, p):
+
+ p.auth_algo_vpp_id = (VppEnum.vl_api_ipsec_integ_alg_t.
+ IPSEC_API_INTEG_ALG_NONE)
+ p.auth_algo = 'NULL'
+ p.auth_key = []
+
+ p.crypt_algo_vpp_id = (VppEnum.vl_api_ipsec_crypto_alg_t.
+ IPSEC_API_CRYPTO_ALG_NONE)
+ p.crypt_algo = 'NULL'
+ p.crypt_key = []
+
+ p.tun_if = VppIpsecTunInterface(self, self.pg0, p.vpp_tun_spi,
+ p.scapy_tun_spi,
+ p.crypt_algo_vpp_id,
+ p.crypt_key, p.crypt_key,
+ p.auth_algo_vpp_id, p.auth_key,
+ p.auth_key,
+ salt=p.salt)
+ p.tun_if.add_vpp_config()
+ p.tun_if.admin_up()
+ p.tun_if.config_ip4()
+ config_tun_params(p, self.encryption_type, p.tun_if)
+ self.logger.info(self.vapi.cli("sh ipsec sa 0"))
+ self.logger.info(self.vapi.cli("sh ipsec sa 1"))
+
+ p.route = VppIpRoute(self, p.remote_tun_if_host, 32,
+ [VppRoutePath(p.tun_if.remote_ip4,
+ 0xffffffff)])
+ p.route.add_vpp_config()
+
+ def unconfig_network(self, p):
+ p.tun_if.unconfig_ip4()
+ p.tun_if.remove_vpp_config()
+ p.route.remove_vpp_config()
+
+ def setUp(self):
+ super(TestIpsec4TunIfEspNoAlgo, self).setUp()
+
+ self.tun_if = self.pg0
+
+ def tearDown(self):
+ super(TestIpsec4TunIfEspNoAlgo, self).tearDown()
+
+ def test_tun_44(self):
+ p = self.ipv4_params
+
+ self.config_network(p)
+
+ tx = self.gen_pkts(self.pg1, src=self.pg1.remote_ip4,
+ dst=p.remote_tun_if_host)
+ self.send_and_assert_no_replies(self.pg1, tx)
+
+ self.unconfig_network(p)
+
+
class TestIpsec6MultiTunIfEsp(TemplateIpsec, IpsecTun6):
""" IPsec IPv6 Multi Tunnel interface """
@@ -919,6 +1004,16 @@ class TestIpsecGreIfEspTra(TemplateIpsec,
Raw(b'X' * payload_size))
for i in range(count)]
+ def gen_encrypt_non_ip_pkts(self, sa, sw_intf, src, dst, count=1,
+ payload_size=100):
+ return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
+ sa.encrypt(IP(src=self.pg0.remote_ip4,
+ dst=self.pg0.local_ip4) /
+ GRE() /
+ UDP(sport=1144, dport=2233) /
+ Raw(b'X' * payload_size))
+ for i in range(count)]
+
def gen_pkts(self, sw_intf, src, dst, count=1,
payload_size=100):
return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
@@ -996,6 +1091,115 @@ class TestIpsecGreIfEspTra(TemplateIpsec,
p.tun_if.unconfig_ip4()
super(TestIpsecGreIfEspTra, self).tearDown()
+ def test_gre_non_ip(self):
+ p = self.ipv4_params
+ tx = self.gen_encrypt_non_ip_pkts(p.scapy_tun_sa, self.tun_if,
+ src=p.remote_tun_if_host,
+ dst=self.pg1.remote_ip6)
+ self.send_and_assert_no_replies(self.tun_if, tx)
+ node_name = ('/err/%s/unsupported payload' %
+ self.tun4_decrypt_node_name)
+ self.assertEqual(1, self.statistics.get_err_counter(node_name))
+
+
+class TestIpsecGre6IfEspTra(TemplateIpsec,
+ IpsecTun6Tests):
+ """ Ipsec GRE ESP - TRA tests """
+ tun6_encrypt_node_name = "esp6-encrypt-tun"
+ tun6_decrypt_node_name = "esp6-decrypt-tun"
+ encryption_type = ESP
+
+ def gen_encrypt_pkts6(self, sa, sw_intf, src, dst, count=1,
+ payload_size=100):
+ return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
+ sa.encrypt(IPv6(src=self.pg0.remote_ip6,
+ dst=self.pg0.local_ip6) /
+ GRE() /
+ IPv6(src=self.pg1.local_ip6,
+ dst=self.pg1.remote_ip6) /
+ UDP(sport=1144, dport=2233) /
+ Raw(b'X' * payload_size))
+ for i in range(count)]
+
+ def gen_pkts6(self, sw_intf, src, dst, count=1,
+ payload_size=100):
+ return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
+ IPv6(src="1::1", dst="1::2") /
+ UDP(sport=1144, dport=2233) /
+ Raw(b'X' * payload_size)
+ for i in range(count)]
+
+ def verify_decrypted6(self, p, rxs):
+ for rx in rxs:
+ self.assert_equal(rx[Ether].dst, self.pg1.remote_mac)
+ self.assert_equal(rx[IPv6].dst, self.pg1.remote_ip6)
+
+ def verify_encrypted6(self, p, sa, rxs):
+ for rx in rxs:
+ try:
+ pkt = sa.decrypt(rx[IPv6])
+ if not pkt.haslayer(IPv6):
+ pkt = IPv6(pkt[Raw].load)
+ self.assert_packet_checksums_valid(pkt)
+ self.assertTrue(pkt.haslayer(GRE))
+ e = pkt[GRE]
+ self.assertEqual(e[IPv6].dst, "1::2")
+ except (IndexError, AssertionError):
+ self.logger.debug(ppp("Unexpected packet:", rx))
+ try:
+ self.logger.debug(ppp("Decrypted packet:", pkt))
+ except:
+ pass
+ raise
+
+ def setUp(self):
+ super(TestIpsecGre6IfEspTra, self).setUp()
+
+ self.tun_if = self.pg0
+
+ p = self.ipv6_params
+
+ bd1 = VppBridgeDomain(self, 1)
+ bd1.add_vpp_config()
+
+ p.tun_sa_out = VppIpsecSA(self, p.scapy_tun_sa_id, p.scapy_tun_spi,
+ p.auth_algo_vpp_id, p.auth_key,
+ p.crypt_algo_vpp_id, p.crypt_key,
+ self.vpp_esp_protocol)
+ p.tun_sa_out.add_vpp_config()
+
+ p.tun_sa_in = VppIpsecSA(self, p.vpp_tun_sa_id, p.vpp_tun_spi,
+ p.auth_algo_vpp_id, p.auth_key,
+ p.crypt_algo_vpp_id, p.crypt_key,
+ self.vpp_esp_protocol)
+ p.tun_sa_in.add_vpp_config()
+
+ p.tun_if = VppGreInterface(self,
+ self.pg0.local_ip6,
+ self.pg0.remote_ip6)
+ p.tun_if.add_vpp_config()
+
+ p.tun_protect = VppIpsecTunProtect(self,
+ p.tun_if,
+ p.tun_sa_out,
+ [p.tun_sa_in])
+ p.tun_protect.add_vpp_config()
+
+ p.tun_if.admin_up()
+ p.tun_if.config_ip6()
+ config_tra_params(p, self.encryption_type, p.tun_if)
+
+ r = VppIpRoute(self, "1::2", 128,
+ [VppRoutePath(p.tun_if.remote_ip6,
+ 0xffffffff,
+ proto=DpoProto.DPO_PROTO_IP6)])
+ r.add_vpp_config()
+
+ def tearDown(self):
+ p = self.ipv6_params
+ p.tun_if.unconfig_ip6()
+ super(TestIpsecGre6IfEspTra, self).tearDown()
+
class TemplateIpsec4TunProtect(object):
""" IPsec IPv4 Tunnel protect """
@@ -1286,6 +1490,54 @@ class TestIpsec4TunProtectTun(TemplateIpsec,
self.unconfig_network(p)
+class TestIpsec4TunProtectTunDrop(TemplateIpsec,
+ TemplateIpsec4TunProtect,
+ IpsecTun4):
+ """ IPsec IPv4 Tunnel protect - tunnel mode - drop"""
+
+ encryption_type = ESP
+ tun4_encrypt_node_name = "esp4-encrypt-tun"
+ tun4_decrypt_node_name = "esp4-decrypt-tun"
+
+ def setUp(self):
+ super(TestIpsec4TunProtectTunDrop, self).setUp()
+
+ self.tun_if = self.pg0
+
+ def tearDown(self):
+ super(TestIpsec4TunProtectTunDrop, self).tearDown()
+
+ def gen_encrypt_pkts(self, sa, sw_intf, src, dst, count=1,
+ payload_size=100):
+ return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
+ sa.encrypt(IP(src=sw_intf.remote_ip4,
+ dst="5.5.5.5") /
+ IP(src=src, dst=dst) /
+ UDP(sport=1144, dport=2233) /
+ Raw(b'X' * payload_size))
+ for i in range(count)]
+
+ def test_tun_drop_44(self):
+ """IPSEC tunnel protect bogus tunnel header """
+
+ p = self.ipv4_params
+
+ self.config_network(p)
+ self.config_sa_tun(p)
+ self.config_protect(p)
+
+ tx = self.gen_encrypt_pkts(p.scapy_tun_sa, self.tun_if,
+ src=p.remote_tun_if_host,
+ dst=self.pg1.remote_ip4,
+ count=63)
+ self.send_and_assert_no_replies(self.tun_if, tx)
+
+ # teardown
+ self.unconfig_protect(p)
+ self.unconfig_sa(p)
+ self.unconfig_network(p)
+
+
class TemplateIpsec6TunProtect(object):
""" IPsec IPv6 Tunnel protect """
@@ -1379,7 +1631,7 @@ class TestIpsec6TunProtect(TemplateIpsec,
super(TestIpsec6TunProtect, self).tearDown()
def test_tun_66(self):
- """IPSEC tunnel protect"""
+ """IPSEC tunnel protect 6o6"""
p = self.ipv6_params
@@ -1413,6 +1665,15 @@ class TestIpsec6TunProtect(TemplateIpsec,
c = p.tun_if.get_tx_stats()
self.assertEqual(c['packets'], 254)
+ # bounce the interface state
+ p.tun_if.admin_down()
+ self.verify_drop_tun_66(np, count=127)
+ node = ('/err/ipsec6-tun-input/%s' %
+ 'ipsec packets received on disabled interface')
+ self.assertEqual(127, self.statistics.get_err_counter(node))
+ p.tun_if.admin_up()
+ self.verify_tun_66(np, count=127)
+
# 3 phase rekey
# 1) add two input SAs [old, new]
# 2) swap output SA to [new]
@@ -1447,9 +1708,9 @@ class TestIpsec6TunProtect(TemplateIpsec,
self.verify_drop_tun_66(np, count=127)
c = p.tun_if.get_rx_stats()
- self.assertEqual(c['packets'], 127*7)
+ self.assertEqual(c['packets'], 127*9)
c = p.tun_if.get_tx_stats()
- self.assertEqual(c['packets'], 127*7)
+ self.assertEqual(c['packets'], 127*8)
self.unconfig_sa(np)
# teardown
@@ -1458,7 +1719,7 @@ class TestIpsec6TunProtect(TemplateIpsec,
self.unconfig_network(p)
def test_tun_46(self):
- """IPSEC tunnel protect"""
+ """IPSEC tunnel protect 4o6"""
p = self.ipv6_params
@@ -1581,5 +1842,54 @@ class TestIpsec6TunProtectTun(TemplateIpsec,
self.unconfig_network(p)
+class TestIpsec6TunProtectTunDrop(TemplateIpsec,
+ TemplateIpsec6TunProtect,
+ IpsecTun6):
+ """ IPsec IPv6 Tunnel protect - tunnel mode - drop"""
+
+ encryption_type = ESP
+ tun6_encrypt_node_name = "esp6-encrypt-tun"
+ tun6_decrypt_node_name = "esp6-decrypt-tun"
+
+ def setUp(self):
+ super(TestIpsec6TunProtectTunDrop, self).setUp()
+
+ self.tun_if = self.pg0
+
+ def tearDown(self):
+ super(TestIpsec6TunProtectTunDrop, self).tearDown()
+
+ def gen_encrypt_pkts5(self, sa, sw_intf, src, dst, count=1,
+ payload_size=100):
+ # the IP destination of the revelaed packet does not match
+ # that assigned to the tunnel
+ return [Ether(src=sw_intf.remote_mac, dst=sw_intf.local_mac) /
+ sa.encrypt(IPv6(src=sw_intf.remote_ip6,
+ dst="5::5") /
+ IPv6(src=src, dst=dst) /
+ UDP(sport=1144, dport=2233) /
+ Raw(b'X' * payload_size))
+ for i in range(count)]
+
+ def test_tun_drop_66(self):
+ """IPSEC 6 tunnel protect bogus tunnel header """
+
+ p = self.ipv6_params
+
+ self.config_network(p)
+ self.config_sa_tun(p)
+ self.config_protect(p)
+
+ tx = self.gen_encrypt_pkts6(p.scapy_tun_sa, self.tun_if,
+ src=p.remote_tun_if_host,
+ dst=self.pg1.remote_ip6,
+ count=63)
+ self.send_and_assert_no_replies(self.tun_if, tx)
+
+ self.unconfig_protect(p)
+ self.unconfig_sa(p)
+ self.unconfig_network(p)
+
+
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)