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-rw-r--r--test/test_ipsec_spd_fp_input.py844
1 files changed, 844 insertions, 0 deletions
diff --git a/test/test_ipsec_spd_fp_input.py b/test/test_ipsec_spd_fp_input.py
new file mode 100644
index 00000000000..199fbdf7c5d
--- /dev/null
+++ b/test/test_ipsec_spd_fp_input.py
@@ -0,0 +1,844 @@
+import socket
+import unittest
+import ipaddress
+
+from util import ppp
+from framework import VppTestRunner
+from template_ipsec import IPSecIPv4Fwd
+from template_ipsec import IPSecIPv6Fwd
+from test_ipsec_esp import TemplateIpsecEsp
+import pdb
+
+
+def debug_signal_handler(signal, frame):
+ import pdb
+
+ pdb.set_trace()
+
+
+import signal
+
+signal.signal(signal.SIGINT, debug_signal_handler)
+
+
+class SpdFastPathInbound(IPSecIPv4Fwd):
+ # In test cases derived from this class, packets in IPv4 FWD path
+ # are configured to go through IPSec inbound SPD policy lookup.
+ # Note that order in which the rules are applied is
+ # PROTECT, BYPASS, DISCARD. Therefore BYPASS rules take
+ # precedence over DISCARD.
+ #
+ # Override setUpConstants to enable inbound fast path in config
+ @classmethod
+ def setUpConstants(cls):
+ super(SpdFastPathInbound, cls).setUpConstants()
+ cls.vpp_cmdline.extend(["ipsec", "{", "ipv4-inbound-spd-fast-path on", "}"])
+ cls.logger.info("VPP modified cmdline is %s" % " ".join(cls.vpp_cmdline))
+
+ @classmethod
+ def create_enc_stream(self, src_if, dst_if, pkt_count, src_prt=1234, dst_prt=5678):
+ packets = []
+ params = self.params[socket.AF_INET]
+ for i in range(pkt_count):
+ # create packet info stored in the test case instance
+ info = self.create_packet_info(src_if, dst_if)
+ # convert the info into packet payload
+ payload = self.info_to_payload(info)
+ # create the packet itself
+ p = Ether(
+ src=self.tra_if.remote_mac, dst=self.tra_if.local_mac
+ ) / params.scapy_tra_sa.encrypt(
+ IP(src=self.tra_if.remote_ip4, dst=self.tra_if.local_ip4)
+ / UDP(sport=src_prt, dport=dst_prt)
+ / Raw(payload)
+ )
+ # store a copy of the packet in the packet info
+ info.data = p.copy()
+ # append the packet to the list
+ packets.append(p)
+ # return the created packet list
+ return packets
+
+
+class SpdFastPathInboundProtect(TemplateIpsecEsp):
+ @classmethod
+ def setUpConstants(cls):
+ super(SpdFastPathInboundProtect, cls).setUpConstants()
+ cls.vpp_cmdline.extend(["ipsec", "{", "ipv4-inbound-spd-fast-path on", "}"])
+ cls.logger.info("VPP modified cmdline is %s" % " ".join(cls.vpp_cmdline))
+
+ @classmethod
+ def setUpClass(cls):
+ super(SpdFastPathInboundProtect, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(SpdFastPathInboundProtect, cls).tearDownClass()
+
+ def setUp(self):
+ super(SpdFastPathInboundProtect, self).setUp()
+
+ def tearDown(self):
+ self.unconfig_network()
+ super(SpdFastPathInboundProtect, self).tearDown()
+
+
+class SpdFastPathIPv6Inbound(IPSecIPv6Fwd):
+ # In test cases derived from this class, packets in IPvr6 FWD path
+ # are configured to go through IPSec inbound SPD policy lookup.
+ # Note that order in which the rules are applied is
+ # PROTECT, BYPASS, DISCARD. Therefore BYPASS rules take
+ # precedence over DISCARDi.
+
+ # Override setUpConstants to enable inbound fast path in config
+ @classmethod
+ def setUpConstants(cls):
+ super(SpdFastPathIPv6Inbound, cls).setUpConstants()
+ cls.vpp_cmdline.extend(["ipsec", "{", "ipv6-inbound-spd-fast-path on", "}"])
+ cls.logger.info("VPP modified cmdline is %s" % " ".join(cls.vpp_cmdline))
+
+
+class IPSec4SpdTestCaseBypass(SpdFastPathInbound):
+ """ IPSec/IPv4 inbound: Policy mode test case with fast path \
+ (add bypass)"""
+
+ def test_ipsec_spd_inbound_bypass(self):
+ # In this test case, packets in IPv4 FWD path are configured
+ # to go through IPSec inbound SPD policy lookup.
+ #
+ # 2 inbound SPD rules (1 HIGH and 1 LOW) are added.
+ # - High priority rule action is set to DISCARD.
+ # - Low priority rule action is set to BYPASS.
+ #
+ # Since BYPASS rules take precedence over DISCARD
+ # (the order being PROTECT, BYPASS, DISCARD) we expect the
+ # BYPASS rule to match and traffic to be correctly forwarded.
+ self.create_interfaces(2)
+ pkt_count = 5
+
+ self.spd_create_and_intf_add(1, [self.pg1, self.pg0])
+
+ # create input rules
+ # bypass rule should take precedence over discard rule,
+ # even though it's lower priority
+ policy_0 = self.spd_add_rem_policy( # inbound, priority 10
+ 1,
+ self.pg1,
+ self.pg0,
+ socket.IPPROTO_UDP,
+ is_out=0,
+ priority=10,
+ policy_type="bypass",
+ ip_range=True,
+ local_ip_start=self.pg0.remote_ip4,
+ local_ip_stop=self.pg0.remote_ip4,
+ remote_ip_start=self.pg1.remote_ip4,
+ remote_ip_stop=self.pg1.remote_ip4,
+ )
+ policy_1 = self.spd_add_rem_policy( # inbound, priority 15
+ 1,
+ self.pg1,
+ self.pg0,
+ socket.IPPROTO_UDP,
+ is_out=0,
+ priority=15,
+ policy_type="discard",
+ ip_range=True,
+ local_ip_start=self.pg0.remote_ip4,
+ local_ip_stop=self.pg0.remote_ip4,
+ remote_ip_start=self.pg1.remote_ip4,
+ remote_ip_stop=self.pg1.remote_ip4,
+ )
+
+ # create output rule so we can capture forwarded packets
+ policy_2 = self.spd_add_rem_policy( # outbound, priority 10
+ 1,
+ self.pg0,
+ self.pg1,
+ socket.IPPROTO_UDP,
+ is_out=1,
+ priority=10,
+ policy_type="bypass",
+ )
+
+ # create the packet stream
+ packets = self.create_stream(self.pg0, self.pg1, pkt_count)
+ # add the stream to the source interface
+ self.pg0.add_stream(packets)
+ self.pg1.enable_capture()
+ self.pg_start()
+
+ # check capture on pg1
+ capture = self.pg1.get_capture()
+ for packet in capture:
+ try:
+ self.logger.debug(ppp("SPD Add - Got packet:", packet))
+ except Exception:
+ self.logger.error(ppp("Unexpected or invalid packet:", packet))
+ raise
+ self.logger.debug("SPD: Num packets: %s", len(capture.res))
+
+ # verify captured packets
+ self.verify_capture(self.pg0, self.pg1, capture)
+ # verify all policies matched the expected number of times
+ self.verify_policy_match(pkt_count, policy_0)
+ self.verify_policy_match(0, policy_1)
+ self.verify_policy_match(pkt_count, policy_2)
+
+
+class IPSec4SpdTestCaseDiscard(SpdFastPathInbound):
+ """ IPSec/IPv4 inbound: Policy mode test case with fast path \
+ (add discard)"""
+
+ def test_ipsec_spd_inbound_discard(self):
+ # In this test case, packets in IPv4 FWD path are configured
+ # to go through IPSec inbound SPD policy lookup.
+ #
+ # Rule action is set to DISCARD.
+
+ self.create_interfaces(2)
+ pkt_count = 5
+
+ self.spd_create_and_intf_add(1, [self.pg1, self.pg0])
+
+ # create input rules
+ # bypass rule should take precedence over discard rule,
+ # even though it's lower priority
+ policy_0 = self.spd_add_rem_policy( # inbound, priority 10
+ 1,
+ self.pg1,
+ self.pg0,
+ socket.IPPROTO_UDP,
+ is_out=0,
+ priority=10,
+ policy_type="discard",
+ ip_range=True,
+ local_ip_start=self.pg0.remote_ip4,
+ local_ip_stop=self.pg0.remote_ip4,
+ remote_ip_start=self.pg1.remote_ip4,
+ remote_ip_stop=self.pg1.remote_ip4,
+ )
+
+ # create output rule so we can capture forwarded packets
+ policy_1 = self.spd_add_rem_policy( # outbound, priority 10
+ 1,
+ self.pg0,
+ self.pg1,
+ socket.IPPROTO_UDP,
+ is_out=1,
+ priority=10,
+ policy_type="bypass",
+ )
+
+ # create the packet stream
+ packets = self.create_stream(self.pg0, self.pg1, pkt_count)
+ # add the stream to the source interface
+ self.pg0.add_stream(packets)
+ self.pg1.enable_capture()
+ self.pg_start()
+
+ # check capture on pg1
+ capture = self.pg1.assert_nothing_captured()
+
+ # verify all policies matched the expected number of times
+ self.verify_policy_match(pkt_count, policy_0)
+ self.verify_policy_match(0, policy_1)
+
+
+class IPSec4SpdTestCaseProtect(SpdFastPathInboundProtect):
+ """ IPSec/IPv4 inbound: Policy mode test case with fast path \
+ (add protect)"""
+
+ @classmethod
+ def setUpClass(cls):
+ super(IPSec4SpdTestCaseProtect, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(IPSec4SpdTestCaseProtect, cls).tearDownClass()
+
+ def setUp(self):
+ super(IPSec4SpdTestCaseProtect, self).setUp()
+
+ def tearDown(self):
+ super(IPSec4SpdTestCaseProtect, self).tearDown()
+
+ def test_ipsec_spd_inbound_protect(self):
+ # In this test case, packets in IPv4 FWD path are configured
+ # to go through IPSec inbound SPD policy lookup.
+ #
+ # 2 inbound SPD rules (1 HIGH and 1 LOW) are added.
+ # - High priority rule action is set to DISCARD.
+ # - Low priority rule action is set to BYPASS.
+ #
+ # Since BYPASS rules take precedence over DISCARD
+ # (the order being PROTECT, BYPASS, DISCARD) we expect the
+ # BYPASS rule to match and traffic to be correctly forwarded.
+
+ pkt_count = 5
+ payload_size = 64
+ p = self.params[socket.AF_INET]
+ send_pkts = self.gen_encrypt_pkts(
+ p,
+ p.scapy_tra_sa,
+ self.tra_if,
+ src=self.tra_if.local_ip4,
+ dst=self.tra_if.remote_ip4,
+ count=pkt_count,
+ payload_size=payload_size,
+ )
+ recv_pkts = self.send_and_expect(self.tra_if, send_pkts, self.tra_if)
+
+ self.logger.info(self.vapi.ppcli("show error"))
+ self.logger.info(self.vapi.ppcli("show ipsec all"))
+
+ pkts = p.tra_sa_in.get_stats()["packets"]
+ self.assertEqual(
+ pkts,
+ pkt_count,
+ "incorrect SA in counts: expected %d != %d" % (pkt_count, pkts),
+ )
+ pkts = p.tra_sa_out.get_stats()["packets"]
+ self.assertEqual(
+ pkts,
+ pkt_count,
+ "incorrect SA out counts: expected %d != %d" % (pkt_count, pkts),
+ )
+ self.assertEqual(p.tra_sa_out.get_lost(), 0)
+ self.assertEqual(p.tra_sa_in.get_lost(), 0)
+
+
+class IPSec4SpdTestCaseAddIPRange(SpdFastPathInbound):
+ """ IPSec/IPv4 inbound: Policy mode test case with fast path \
+ (add ips range with any port rule)"""
+
+ def test_ipsec_spd_inbound_add(self):
+ # In this test case, packets in IPv4 FWD path are configured
+ # to go through IPSec inbound SPD policy lookup.
+ # 2 SPD bypass rules (1 for inbound and 1 for outbound) are added.
+ # Traffic sent on pg0 interface should match fast path priority
+ # rule and should be sent out on pg1 interface.
+ self.create_interfaces(2)
+ pkt_count = 5
+ s_ip_s1 = ipaddress.ip_address(self.pg0.remote_ip4)
+ s_ip_e1 = ipaddress.ip_address(int(s_ip_s1) + 5)
+ d_ip_s1 = ipaddress.ip_address(self.pg1.remote_ip4)
+ d_ip_e1 = ipaddress.ip_address(int(d_ip_s1) + 0)
+
+ s_ip_s0 = ipaddress.ip_address(self.pg0.remote_ip4)
+ s_ip_e0 = ipaddress.ip_address(int(s_ip_s0) + 6)
+ d_ip_s0 = ipaddress.ip_address(self.pg1.remote_ip4)
+ d_ip_e0 = ipaddress.ip_address(int(d_ip_s0) + 0)
+ self.spd_create_and_intf_add(1, [self.pg1, self.pg0])
+
+ policy_0 = self.spd_add_rem_policy( # inbound fast path, priority 10
+ 1,
+ self.pg0,
+ self.pg1,
+ socket.IPPROTO_UDP,
+ is_out=0,
+ priority=10,
+ policy_type="bypass",
+ ip_range=True,
+ local_ip_start=s_ip_s0,
+ local_ip_stop=s_ip_e0,
+ remote_ip_start=d_ip_s0,
+ remote_ip_stop=d_ip_e0,
+ )
+ policy_1 = self.spd_add_rem_policy( # outbound, priority 5
+ 1,
+ self.pg0,
+ self.pg1,
+ socket.IPPROTO_UDP,
+ is_out=1,
+ priority=5,
+ policy_type="bypass",
+ ip_range=True,
+ local_ip_start=s_ip_s1,
+ local_ip_stop=s_ip_e1,
+ remote_ip_start=d_ip_s1,
+ remote_ip_stop=d_ip_e1,
+ )
+
+ # create the packet stream
+ packets = self.create_stream(self.pg0, self.pg1, pkt_count)
+ # add the stream to the source interface + enable capture
+ self.pg0.add_stream(packets)
+ self.pg0.enable_capture()
+ self.pg1.enable_capture()
+ # start the packet generator
+ self.pg_start()
+ # get capture
+ capture = self.pg1.get_capture()
+ for packet in capture:
+ try:
+ self.logger.debug(ppp("SPD - Got packet:", packet))
+ except Exception:
+ self.logger.error(ppp("Unexpected or invalid packet:", packet))
+ raise
+ self.logger.debug("SPD: Num packets: %s", len(capture.res))
+
+ # assert nothing captured on pg0
+ self.pg0.assert_nothing_captured()
+ # verify captured packets
+ self.verify_capture(self.pg0, self.pg1, capture)
+ # verify all policies matched the expected number of times
+ self.verify_policy_match(pkt_count, policy_0)
+ self.verify_policy_match(pkt_count, policy_1)
+
+
+class IPSec4SpdTestCaseAddAll(SpdFastPathInbound):
+ """ IPSec/IPv4 inbound: Policy mode test case with fast path \
+ (add all ips ports rule)"""
+
+ def test_ipsec_spd_inbound_add(self):
+ # In this test case, packets in IPv4 FWD path are configured
+ # to go through IPSec inbound SPD policy lookup.
+ # 2 SPD rules (1 HIGH and 1 LOW) are added.
+ # Low priority rule action is set to BYPASS all ips.
+ # High priority rule action is set to DISCARD all ips.
+ # Traffic not sent on pg0 interface when HIGH discard priority rule is added.
+ # Then LOW priority
+ # rule is added and send the same traffic to pg0, this time expect
+ # the traffic is bypassed as bypass takes priority over discard.
+ self.create_interfaces(2)
+ pkt_count = 5
+ self.spd_create_and_intf_add(1, [self.pg0, self.pg1])
+
+ policy_0 = self.spd_add_rem_policy( # inbound, priority 20
+ 1,
+ self.pg0,
+ self.pg1,
+ socket.IPPROTO_UDP,
+ is_out=0,
+ priority=20,
+ policy_type="discard",
+ all_ips=True,
+ )
+
+ policy_1 = self.spd_add_rem_policy( # inbound, priority 20
+ 1,
+ self.pg0,
+ self.pg1,
+ socket.IPPROTO_UDP,
+ is_out=True,
+ priority=5,
+ policy_type="bypass",
+ all_ips=True,
+ )
+
+ # create the packet stream
+ packets = self.create_stream(self.pg0, self.pg1, pkt_count)
+ # add the stream to the source interface + enable capture
+ self.pg0.add_stream(packets)
+ self.pg0.enable_capture()
+ self.pg1.enable_capture()
+ # start the packet generator
+ self.pg_start()
+ # assert nothing captured on pg0 and pg1
+ self.pg0.assert_nothing_captured()
+ self.pg1.assert_nothing_captured()
+
+ policy_2 = self.spd_add_rem_policy( # inbound, priority 10
+ 1,
+ self.pg0,
+ self.pg1,
+ socket.IPPROTO_UDP,
+ is_out=0,
+ priority=10,
+ policy_type="bypass",
+ all_ips=True,
+ )
+
+ # create the packet stream
+ packets = self.create_stream(self.pg0, self.pg1, pkt_count)
+ # add the stream to the source interface + enable capture
+ self.pg0.add_stream(packets)
+ self.pg0.enable_capture()
+ self.pg1.enable_capture()
+ # start the packet generator
+ self.pg_start()
+ # get capture
+ capture = self.pg1.get_capture(expected_count=pkt_count)
+ for packet in capture:
+ try:
+ self.logger.debug(ppp("SPD - Got packet:", packet))
+ except Exception:
+ self.logger.error(ppp("Unexpected or invalid packet:", packet))
+ raise
+ self.logger.debug("SPD: Num packets: %s", len(capture.res))
+
+ # assert nothing captured on pg0
+ self.pg0.assert_nothing_captured()
+ # verify all policies matched the expected number of times
+ self.verify_policy_match(pkt_count, policy_2)
+
+
+class IPSec4SpdTestCaseRemove(SpdFastPathInbound):
+ """ IPSec/IPv4 inbound: Policy mode test case with fast path \
+ (remove rule)"""
+
+ def test_ipsec_spd_inbound_remove(self):
+ # In this test case, packets in IPv4 FWD path are configured
+ # to go through IPSec inbound SPD policy lookup.
+ # 2 SPD rules (1 HIGH and 1 LOW) are added.
+ # High priority rule action is set to BYPASS.
+ # Low priority rule action is set to DISCARD.
+ # High priority rule is then removed.
+ # Traffic sent on pg0 interface should match low priority
+ # rule and should be discarded after SPD lookup.
+ self.create_interfaces(2)
+ pkt_count = 5
+ self.spd_create_and_intf_add(1, [self.pg0, self.pg1])
+ policy_0 = self.spd_add_rem_policy( # inbound, priority 10
+ 1,
+ self.pg0,
+ self.pg1,
+ socket.IPPROTO_UDP,
+ is_out=0,
+ priority=10,
+ policy_type="bypass",
+ )
+ policy_1 = self.spd_add_rem_policy( # inbound, priority 5
+ 1,
+ self.pg0,
+ self.pg1,
+ socket.IPPROTO_UDP,
+ is_out=0,
+ priority=5,
+ policy_type="discard",
+ )
+
+ policy_out = self.spd_add_rem_policy( # outbound, priority 10
+ 1,
+ self.pg0,
+ self.pg1,
+ socket.IPPROTO_UDP,
+ is_out=1,
+ priority=10,
+ policy_type="bypass",
+ )
+
+ # create the packet stream
+ packets = self.create_stream(self.pg0, self.pg1, pkt_count)
+ # add the stream to the source interface + enable capture
+ self.pg0.add_stream(packets)
+ self.pg0.enable_capture()
+ self.pg1.enable_capture()
+ # start the packet generator
+ self.pg_start()
+ # get capture
+ capture = self.pg1.get_capture()
+ for packet in capture:
+ try:
+ self.logger.debug(ppp("SPD - Got packet:", packet))
+ except Exception:
+ self.logger.error(ppp("Unexpected or invalid packet:", packet))
+ raise
+
+ # assert nothing captured on pg0
+ self.pg0.assert_nothing_captured()
+ # verify capture on pg1
+ self.logger.debug("SPD: Num packets: %s", len(capture.res))
+ self.verify_capture(self.pg0, self.pg1, capture)
+ # verify all policies matched the expected number of times
+ self.verify_policy_match(pkt_count, policy_0)
+ self.verify_policy_match(0, policy_1)
+ # now remove the bypass rule
+ self.spd_add_rem_policy( # outbound, priority 10
+ 1,
+ self.pg0,
+ self.pg1,
+ socket.IPPROTO_UDP,
+ is_out=0,
+ priority=10,
+ policy_type="bypass",
+ remove=True,
+ )
+
+ # resend the same packets
+ self.pg0.add_stream(packets)
+ self.pg0.enable_capture() # flush the old captures
+ self.pg1.enable_capture()
+ self.pg_start()
+ # assert nothing captured on pg0
+ self.pg0.assert_nothing_captured()
+ # all packets will be dropped by SPD rule
+ self.pg1.assert_nothing_captured()
+ # verify all policies matched the expected number of times
+ self.verify_policy_match(pkt_count, policy_0)
+ self.verify_policy_match(pkt_count, policy_1)
+
+
+class IPSec4SpdTestCaseReadd(SpdFastPathInbound):
+ """ IPSec/IPv4 inbound: Policy mode test case with fast path \
+ (add, remove, re-add)"""
+
+ def test_ipsec_spd_inbound_readd(self):
+ # In this test case, packets in IPv4 FWD path are configured
+ # to go through IPSec outbound SPD policy lookup.
+ # 2 SPD rules (1 HIGH and 1 LOW) are added.
+ # High priority rule action is set to BYPASS.
+ # Low priority rule action is set to DISCARD.
+ # Traffic sent on pg0 interface should match high priority
+ # rule and should be sent out on pg1 interface.
+ # High priority rule is then removed.
+ # Traffic sent on pg0 interface should match low priority
+ # rule and should be discarded after SPD lookup.
+ # Readd high priority rule.
+ # Traffic sent on pg0 interface should match high priority
+ # rule and should be sent out on pg1 interface.
+ self.create_interfaces(2)
+ pkt_count = 5
+ self.spd_create_and_intf_add(1, [self.pg0, self.pg1])
+ policy_0 = self.spd_add_rem_policy( # inbound, priority 10
+ 1,
+ self.pg0,
+ self.pg1,
+ socket.IPPROTO_UDP,
+ is_out=0,
+ priority=10,
+ policy_type="bypass",
+ )
+ policy_1 = self.spd_add_rem_policy( # inbound, priority 5
+ 1,
+ self.pg0,
+ self.pg1,
+ socket.IPPROTO_UDP,
+ is_out=0,
+ priority=5,
+ policy_type="discard",
+ )
+ policy_2 = self.spd_add_rem_policy( # outbound, priority 10
+ 1,
+ self.pg0,
+ self.pg1,
+ socket.IPPROTO_UDP,
+ is_out=1,
+ priority=10,
+ policy_type="bypass",
+ )
+
+ # create the packet stream
+ packets = self.create_stream(self.pg0, self.pg1, pkt_count)
+ # add the stream to the source interface + enable capture
+ self.pg0.add_stream(packets)
+ self.pg0.enable_capture()
+ self.pg1.enable_capture()
+ # start the packet generator
+ self.pg_start()
+ # get capture
+ capture = self.pg1.get_capture()
+ for packet in capture:
+ try:
+ self.logger.debug(ppp("SPD - Got packet:", packet))
+ except Exception:
+ self.logger.error(ppp("Unexpected or invalid packet:", packet))
+ raise
+ self.logger.debug("SPD: Num packets: %s", len(capture.res))
+
+ # assert nothing captured on pg0
+ self.pg0.assert_nothing_captured()
+ # verify capture on pg1
+ self.verify_capture(self.pg0, self.pg1, capture)
+ # verify all policies matched the expected number of times
+ self.verify_policy_match(pkt_count, policy_0)
+ self.verify_policy_match(0, policy_1)
+ # remove the bypass rule, leaving only the discard rule
+ self.spd_add_rem_policy( # inbound, priority 10
+ 1,
+ self.pg0,
+ self.pg1,
+ socket.IPPROTO_UDP,
+ is_out=0,
+ priority=10,
+ policy_type="bypass",
+ remove=True,
+ )
+
+ # resend the same packets
+ self.pg0.add_stream(packets)
+ self.pg0.enable_capture() # flush the old captures
+ self.pg1.enable_capture()
+ self.pg_start()
+
+ # assert nothing captured on pg0
+ self.pg0.assert_nothing_captured()
+ # all packets will be dropped by SPD rule
+ self.pg1.assert_nothing_captured()
+ # verify all policies matched the expected number of times
+ self.verify_policy_match(pkt_count, policy_0)
+ self.verify_policy_match(pkt_count, policy_1)
+
+ # now readd the bypass rule
+ policy_0 = self.spd_add_rem_policy( # outbound, priority 10
+ 1,
+ self.pg0,
+ self.pg1,
+ socket.IPPROTO_UDP,
+ is_out=0,
+ priority=10,
+ policy_type="bypass",
+ )
+
+ # resend the same packets
+ self.pg0.add_stream(packets)
+ self.pg0.enable_capture() # flush the old captures
+ self.pg1.enable_capture()
+ self.pg_start()
+
+ # get capture
+ capture = self.pg1.get_capture(pkt_count)
+ for packet in capture:
+ try:
+ self.logger.debug(ppp("SPD - Got packet:", packet))
+ except Exception:
+ self.logger.error(ppp("Unexpected or invalid packet:", packet))
+ raise
+ self.logger.debug("SPD: Num packets: %s", len(capture.res))
+
+ # assert nothing captured on pg0
+ self.pg0.assert_nothing_captured()
+ # verify captured packets
+ self.verify_capture(self.pg0, self.pg1, capture)
+ # verify all policies matched the expected number of times
+ self.verify_policy_match(pkt_count, policy_0)
+ self.verify_policy_match(pkt_count, policy_1)
+
+
+class IPSec4SpdTestCaseMultiple(SpdFastPathInbound):
+ """ IPSec/IPv4 inbound: Policy mode test case with fast path \
+ (multiple interfaces, multiple rules)"""
+
+ def test_ipsec_spd_inbound_multiple(self):
+ # In this test case, packets in IPv4 FWD path are configured to go
+ # through IPSec outbound SPD policy lookup.
+ # Multiples rules on multiple interfaces are tested at the same time.
+ # 3x interfaces are configured, binding the same SPD to each.
+ # Each interface has 2 SPD rules (1 BYPASS and 1 DISCARD).
+ # On pg0 & pg1, the BYPASS rule is HIGH priority
+ # On pg2, the DISCARD rule is HIGH priority
+ # Traffic should be received on pg0 & pg1 and dropped on pg2.
+ self.create_interfaces(3)
+ pkt_count = 5
+ # bind SPD to all interfaces
+ self.spd_create_and_intf_add(1, self.pg_interfaces)
+ # add rules on all interfaces
+ policy_01 = self.spd_add_rem_policy( # inbound, priority 10
+ 1,
+ self.pg0,
+ self.pg1,
+ socket.IPPROTO_UDP,
+ is_out=0,
+ priority=10,
+ policy_type="bypass",
+ )
+ policy_02 = self.spd_add_rem_policy( # inbound, priority 5
+ 1,
+ self.pg0,
+ self.pg1,
+ socket.IPPROTO_UDP,
+ is_out=0,
+ priority=5,
+ policy_type="discard",
+ )
+
+ policy_11 = self.spd_add_rem_policy( # inbound, priority 10
+ 1,
+ self.pg1,
+ self.pg2,
+ socket.IPPROTO_UDP,
+ is_out=0,
+ priority=10,
+ policy_type="bypass",
+ )
+ policy_12 = self.spd_add_rem_policy( # inbound, priority 5
+ 1,
+ self.pg1,
+ self.pg2,
+ socket.IPPROTO_UDP,
+ is_out=0,
+ priority=5,
+ policy_type="discard",
+ )
+
+ policy_21 = self.spd_add_rem_policy( # inbound, priority 5
+ 1,
+ self.pg2,
+ self.pg0,
+ socket.IPPROTO_UDP,
+ is_out=0,
+ priority=5,
+ policy_type="bypass",
+ )
+ policy_22 = self.spd_add_rem_policy( # inbound, priority 10
+ 1,
+ self.pg2,
+ self.pg0,
+ socket.IPPROTO_UDP,
+ is_out=0,
+ priority=10,
+ policy_type="discard",
+ )
+
+ # interfaces bound to an SPD, will by default drop outbound
+ # traffic with no matching policies. add catch-all outbound
+ # bypass rule to SPD:
+ self.spd_add_rem_policy( # outbound, all interfaces
+ 1,
+ None,
+ None,
+ socket.IPPROTO_UDP,
+ is_out=1,
+ priority=10,
+ policy_type="bypass",
+ all_ips=True,
+ )
+
+ # create the packet streams
+ packets0 = self.create_stream(self.pg0, self.pg1, pkt_count)
+ packets1 = self.create_stream(self.pg1, self.pg2, pkt_count)
+ packets2 = self.create_stream(self.pg2, self.pg0, pkt_count)
+ # add the streams to the source interfaces
+ self.pg0.add_stream(packets0)
+ self.pg1.add_stream(packets1)
+ self.pg2.add_stream(packets2)
+ # enable capture on all interfaces
+ for pg in self.pg_interfaces:
+ pg.enable_capture()
+ # start the packet generator
+ self.pg_start()
+
+ # get captures
+ if_caps = []
+ for pg in [self.pg1, self.pg2]: # we are expecting captures on pg1/pg2
+ if_caps.append(pg.get_capture())
+ for packet in if_caps[-1]:
+ try:
+ self.logger.debug(ppp("SPD - Got packet:", packet))
+ except Exception:
+ self.logger.error(ppp("Unexpected or invalid packet:", packet))
+ raise
+ self.logger.debug("SPD: Num packets: %s", len(if_caps[0].res))
+ self.logger.debug("SPD: Num packets: %s", len(if_caps[1].res))
+
+ # verify captures that matched BYPASS rule
+ self.verify_capture(self.pg0, self.pg1, if_caps[0])
+ self.verify_capture(self.pg1, self.pg2, if_caps[1])
+ # verify that traffic to pg0 matched BYPASS rule
+ # although DISCARD rule had higher prioriy and was not dropped
+ self.verify_policy_match(pkt_count, policy_21)
+
+ # verify all packets that were expected to match rules, matched
+ # pg0 -> pg1
+ self.verify_policy_match(pkt_count, policy_01)
+ self.verify_policy_match(0, policy_02)
+ # pg1 -> pg2
+ self.verify_policy_match(pkt_count, policy_11)
+ self.verify_policy_match(0, policy_12)
+ # pg2 -> pg0
+ self.verify_policy_match(0, policy_22)
+
+
+if __name__ == "__main__":
+ unittest.main(testRunner=VppTestRunner)