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# Copyright (c) 2019 Cisco and/or its affiliates.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

*** Settings ***
| Resource | resources/libraries/robot/shared/default.robot
| Resource | resources/libraries/robot/crypto/ipsec.robot
| ...
| Force Tags | 3_NODE_SINGLE_LINK_TOPO | PERFTEST | HW_ENV | NDRPDR | TNL_1
| ... | IP4FWD | IPSEC | IPSECHW | IPSECTUN | NIC_Intel-X710 | BASE |
| ... | AES_128_CBC | HMAC_SHA_256 | HMAC | AES | DRV_VFIO_PCI
| ...
| Suite Setup | Setup suite single link | performance | ipsechw
| Suite Teardown | Tear down suite | performance
| Test Setup | Setup test
| Test Teardown | Tear down test | performance
| ...
| Test Template | Local Template
| ...
| Documentation | *IPv4 IPsec tunnel mode performance test suite.*
| ...
| ... | *[Top] Network Topologies:* TG-DUT1-DUT2-TG 3-node circular topology
| ... | with single links between nodes.
| ... | *[Enc] Packet Encapsulations:* Eth-IPv4 on TG-DUTn,
| ... | Eth-IPv4-IPSec on DUT1-DUT2
| ... | *[Cfg] DUT configuration:* DUT1 and DUT2 are configured with multiple
| ... | IPsec tunnels between them. DUTs get IPv4 traffic from TG, encrypt it
| ... | and send to another DUT, where packets are decrypted and sent back to TG
| ... | *[Ver] TG verification:* TG finds and reports throughput NDR (Non Drop\
| ... | Rate) with zero packet loss tolerance and throughput PDR (Partial Drop\
| ... | Rate) with non-zero packet loss tolerance (LT) expressed in percentage\
| ... | of packets transmitted. NDR and PDR are discovered for different\
| ... | Ethernet L2 frame sizes using MLRsearch library.\
| ... | TG traffic profile contains two L3 flow-groups
| ... | (flow-group per direction, number of flows per flow-group equals to
| ... | number of IPSec tunnels) with all packets
| ... | containing Ethernet header, IPv4 header with IP protocol=61 and
| ... | static payload. MAC addresses are matching MAC addresses of the TG
| ... | node interfaces. Incrementing of IP.dst (IPv4 destination address) field
| ... | is applied to both streams.
| ... | *[Ref] Applicable standard specifications:* RFC4303 and RFC2544.

*** Variables ***
| @{plugins_to_enable}= | dpdk_plugin.so | crypto_ia32_plugin.so
| ... | crypto_ipsecmb_plugin.so | crypto_openssl_plugin.so
| ${crypto_type}= | HW_DH895xcc
| ${nic_name}= | Intel-X710
| ${nic_driver}= | vfio-pci
| ${osi_layer}= | L3
| ${overhead}= | ${58}
| ${tg_if1_ip4}= | 192.168.10.2
| ${dut1_if1_ip4}= | 192.168.10.1
| ${dut1_if2_ip4}= | 100.0.0.1
| ${dut2_if1_ip4}= | 100.0.0.2
| ${dut2_if2_ip4}= | 192.168.20.1
| ${tg_if2_ip4}= | 192.168.20.2
| ${raddr_ip4}= | 20.0.0.0
| ${laddr_ip4}= | 10.0.0.0
| ${addr_range}= | ${24}
| ${n_tunnels}= | ${1}
# Traffic profile:
| ${traffic_profile}= | trex-sl-3n-ethip4-ip4dst${n_tunnels}

*** Keywords ***
| Local Template
| | [Documentation]
| | ... | [Cfg] DUTs run 1 IPsec tunnel AES_CBC_128 / HMAC_256_SHA in each
| | ... | direction.\
| | ... | Each DUT uses ${phy_cores} physical core(s) for worker threads.
| | ... | [Ver] Measure NDR and PDR values using MLRsearch algorithm.\
| | ...
| | ... | *Arguments:*
| | ... | - frame_size - Framesize in Bytes in integer or string (IMIX_v4_1).
| | ... | Type: integer, string
| | ... | - phy_cores - Number of physical cores. Type: integer
| | ... | - rxq - Number of RX queues, default value: ${None}. Type: integer
| | ...
| | [Arguments] | ${frame_size} | ${phy_cores} | ${rxq}=${None}
| | ...
| | Set Test Variable | \${frame_size}
| | ...
| | # These are enums (not strings) so they cannot be in Variables table.
| | ${encr_alg}= | Crypto Alg AES CBC 128
| | ${auth_alg}= | Integ Alg SHA 256 128
| | ...
| | Given Set Max Rate And Jumbo
| | And Add worker threads to all DUTs | ${phy_cores} | ${rxq}
| | And Pre-initialize layer driver | ${nic_driver}
| | And Apply startup configuration on all VPP DUTs
| | When Initialize layer driver | ${nic_driver}
| | And Initialize layer interface
| | And VPP IPsec Select Backend | ${dut1} | ${ipsec_proto} | index=${1}
| | And VPP IPsec Select Backend | ${dut2} | ${ipsec_proto} | index=${1}
| | And Initialize IPSec in 3-node circular topology
| | And VPP IPsec Add Multiple Tunnels
| | ... | ${nodes} | ${dut1_if2} | ${dut2_if1} | ${n_tunnels}
| | ... | ${encr_alg} | ${auth_alg} | ${dut1_if2_ip4} | ${dut2_if1_ip4}
| | ... | ${laddr_ip4} | ${raddr_ip4} | ${addr_range}
| | Then Find NDR and PDR intervals using optimized search

*** Test Cases ***
| tc01-64B-1c-ethip4ipsec1tnlhw-ip4base-policy-aes128cbc-hmac256sha-ndrpdr
| | [Tags] | 64B | 1C
| | frame_size=${64} | phy_cores=${1}

| tc02-64B-2c-ethip4ipsec1tnlhw-ip4base-policy-aes128cbc-hmac256sha-ndrpdr
| | [Tags] | 64B | 2C
| | frame_size=${64} | phy_cores=${2}

| tc03-64B-4c-ethip4ipsec1tnlhw-ip4base-policy-aes128cbc-hmac256sha-ndrpdr
| | [Tags] | 64B | 4C
| | frame_size=${64} | phy_cores=${4}

| tc04-1518B-1c-ethip4ipsec1tnlhw-ip4base-policy-aes128cbc-hmac256sha-ndrpdr
| | [Tags] | 1518B | 1C
| | frame_size=${1518} | phy_cores=${1}

| tc05-1518B-2c-ethip4ipsec1tnlhw-ip4base-policy-aes128cbc-hmac256sha-ndrpdr
| | [Tags] | 1518B | 2C
| | frame_size=${1518} | phy_cores=${2}

| tc06-1518B-4c-ethip4ipsec1tnlhw-ip4base-policy-aes128cbc-hmac256sha-ndrpdr
| | [Tags] | 1518B | 4C
| | frame_size=${1518} | phy_cores=${4}

| tc10-IMIX-1c-ethip4ipsec1tnlhw-ip4base-policy-aes128cbc-hmac256sha-ndrpdr
| | [Tags] | IMIX | 1C
| | frame_size=IMIX_v4_1 | phy_cores=${1}

| tc11-IMIX-2c-ethip4ipsec1tnlhw-ip4base-policy-aes128cbc-hmac256sha-ndrpdr
| | [Tags] | IMIX | 2C
| | frame_size=IMIX_v4_1 | phy_cores=${2}

| tc12-IMIX-4c-ethip4ipsec1tnlhw-ip4base-policy-aes128cbc-hmac256sha-ndrpdr
| | [Tags] | IMIX | 4C
| | frame_size=IMIX_v4_1 | phy_cores=${4}
ss="n">dport=1234) / Raw('\xa5' * 100)) rx = self.send_and_expect(self.pg2, pkt_tag_to_tag * 65, self.pg3) self.assert_same_mac_addr(pkt_tag_to_tag, rx) self.assert_has_vlan_tag(93, rx) # # Tag to non-Tag # pkt_tag_to_non_tag = (Ether(src=self.pg2.remote_mac, dst=self.loop0.local_mac) / Dot1Q(vlan=92) / IP(src=any_src_addr, dst=ip_non_tag_bridged) / UDP(sport=1234, dport=1234) / Raw('\xa5' * 100)) rx = self.send_and_expect(self.pg2, pkt_tag_to_non_tag * 65, self.pg1) self.assert_same_mac_addr(pkt_tag_to_tag, rx) self.assert_has_no_tag(rx) # # Add an output L3 ACL that will block the traffic # rule_1 = ({'is_permit': 0, 'is_ipv6': 0, 'proto': 17, 'srcport_or_icmptype_first': 1234, 'srcport_or_icmptype_last': 1234, 'src_ip_prefix_len': 32, 'src_ip_addr': inet_pton(AF_INET, any_src_addr), 'dstport_or_icmpcode_first': 1234, 'dstport_or_icmpcode_last': 1234, 'dst_ip_prefix_len': 32, 'dst_ip_addr': inet_pton(AF_INET, ip_non_tag_bridged)}) acl = self.vapi.acl_add_replace(acl_index=4294967295, r=[rule_1]) # # Apply the ACL on the output interface # self.vapi.acl_interface_set_acl_list(self.pg1.sw_if_index, 0, [acl.acl_index]) # # Send packet's that should match the ACL and be dropped # rx = self.send_and_assert_no_replies(self.pg2, pkt_tag_to_non_tag * 65) # # cleanup # self.vapi.acl_interface_set_acl_list(self.pg1.sw_if_index, 0, []) self.vapi.acl_del(acl.acl_index) self.vapi.sw_interface_set_l2_bridge(self.pg0.sw_if_index, 1, enable=0) self.vapi.sw_interface_set_l2_bridge(self.pg1.sw_if_index, 1, enable=0) self.vapi.sw_interface_set_l2_bridge(sub_if_on_pg2.sw_if_index, 1, enable=0) self.vapi.sw_interface_set_l2_bridge(sub_if_on_pg3.sw_if_index, 1, enable=0) self.vapi.sw_interface_set_l2_bridge(self.loop0.sw_if_index, 1, bvi=1, enable=0) # # Do a FIB dump to make sure the paths are correctly reported as DVR # routes = self.vapi.ip_fib_dump() for r in routes: if (inet_pton(AF_INET, ip_tag_bridged) == r.address): self.assertEqual(r.path[0].sw_if_index, sub_if_on_pg3.sw_if_index) self.assertEqual(r.path[0].is_dvr, 1) if (inet_pton(AF_INET, ip_non_tag_bridged) == r.address): self.assertEqual(r.path[0].sw_if_index, self.pg1.sw_if_index) self.assertEqual(r.path[0].is_dvr, 1) # # the explicit route delete is require so it happens before # the sbu-interface delete. subinterface delete is required # because that object type does not use the object registry # route_no_tag.remove_vpp_config() route_with_tag.remove_vpp_config() sub_if_on_pg3.remove_vpp_config() sub_if_on_pg2.remove_vpp_config() def test_l2_emulation(self): """ L2 Emulation """ # # non distinct L3 packets, in the tag/non-tag combos # pkt_no_tag = (Ether(src=self.pg0.remote_mac, dst=self.pg1.remote_mac) / IP(src="2.2.2.2", dst="1.1.1.1") / UDP(sport=1234, dport=1234) / Raw('\xa5' * 100)) pkt_to_tag = (Ether(src=self.pg0.remote_mac, dst=self.pg2.remote_mac) / IP(src="2.2.2.2", dst="1.1.1.2") / UDP(sport=1234, dport=1234) / Raw('\xa5' * 100)) pkt_from_tag = (Ether(src=self.pg3.remote_mac, dst=self.pg2.remote_mac) / Dot1Q(vlan=93) / IP(src="2.2.2.2", dst="1.1.1.1") / UDP(sport=1234, dport=1234) / Raw('\xa5' * 100)) pkt_from_to_tag = (Ether(src=self.pg3.remote_mac, dst=self.pg2.remote_mac) / Dot1Q(vlan=93) / IP(src="2.2.2.2", dst="1.1.1.2") / UDP(sport=1234, dport=1234) / Raw('\xa5' * 100)) pkt_bcast = (Ether(src=self.pg0.remote_mac, dst="ff:ff:ff:ff:ff:ff") / IP(src="2.2.2.2", dst="255.255.255.255") / UDP(sport=1234, dport=1234) / Raw('\xa5' * 100)) # # A couple of sub-interfaces for tags # sub_if_on_pg2 = VppDot1QSubint(self, self.pg2, 92) sub_if_on_pg3 = VppDot1QSubint(self, self.pg3, 93) sub_if_on_pg2.admin_up() sub_if_on_pg3.admin_up() # # Put all the interfaces into a new bridge domain # self.vapi.sw_interface_set_l2_bridge(self.pg0.sw_if_index, 1) self.vapi.sw_interface_set_l2_bridge(self.pg1.sw_if_index, 1) self.vapi.sw_interface_set_l2_bridge(sub_if_on_pg2.sw_if_index, 1) self.vapi.sw_interface_set_l2_bridge(sub_if_on_pg3.sw_if_index, 1) self.vapi.sw_interface_set_l2_tag_rewrite(sub_if_on_pg2.sw_if_index, L2_VTR_OP.L2_POP_1, 92) self.vapi.sw_interface_set_l2_tag_rewrite(sub_if_on_pg3.sw_if_index, L2_VTR_OP.L2_POP_1, 93) # # Disable UU flooding, learning and ARP terminaation. makes this test # easier as unicast packets are dropped if not extracted. # self.vapi.bridge_flags(1, 0, (1 << 0) | (1 << 3) | (1 << 4)) # # Add a DVR route to steer traffic at L3 # route_1 = VppIpRoute(self, "1.1.1.1", 32, [VppRoutePath("0.0.0.0", self.pg1.sw_if_index, is_dvr=1)]) route_2 = VppIpRoute(self, "1.1.1.2", 32, [VppRoutePath("0.0.0.0", sub_if_on_pg2.sw_if_index, is_dvr=1)]) route_1.add_vpp_config() route_2.add_vpp_config() # # packets are dropped because bridge does not flood unknown unicast # self.send_and_assert_no_replies(self.pg0, pkt_no_tag) # # Enable L3 extraction on pgs # self.vapi.sw_interface_set_l2_emulation(self.pg0.sw_if_index) self.vapi.sw_interface_set_l2_emulation(self.pg1.sw_if_index) self.vapi.sw_interface_set_l2_emulation(sub_if_on_pg2.sw_if_index) self.vapi.sw_interface_set_l2_emulation(sub_if_on_pg3.sw_if_index) # # now we expect the packet forward according to the DVR route # rx = self.send_and_expect(self.pg0, pkt_no_tag * 65, self.pg1) self.assert_same_mac_addr(pkt_no_tag, rx) self.assert_has_no_tag(rx) rx = self.send_and_expect(self.pg0, pkt_to_tag * 65, self.pg2) self.assert_same_mac_addr(pkt_to_tag, rx) self.assert_has_vlan_tag(92, rx) rx = self.send_and_expect(self.pg3, pkt_from_tag * 65, self.pg1) self.assert_same_mac_addr(pkt_from_tag, rx) self.assert_has_no_tag(rx) rx = self.send_and_expect(self.pg3, pkt_from_to_tag * 65, self.pg2) self.assert_same_mac_addr(pkt_from_tag, rx) self.assert_has_vlan_tag(92, rx) # # but broadcast packets are still flooded # self.send_and_expect(self.pg0, pkt_bcast * 33, self.pg2) # # cleanup # self.vapi.sw_interface_set_l2_emulation(self.pg0.sw_if_index, enable=0) self.vapi.sw_interface_set_l2_emulation(self.pg1.sw_if_index, enable=0) self.vapi.sw_interface_set_l2_emulation(sub_if_on_pg2.sw_if_index, enable=0) self.vapi.sw_interface_set_l2_emulation(sub_if_on_pg3.sw_if_index, enable=0) self.vapi.sw_interface_set_l2_bridge(self.pg0.sw_if_index, 1, enable=0) self.vapi.sw_interface_set_l2_bridge(self.pg1.sw_if_index, 1, enable=0) self.vapi.sw_interface_set_l2_bridge(sub_if_on_pg2.sw_if_index, 1, enable=0) self.vapi.sw_interface_set_l2_bridge(sub_if_on_pg3.sw_if_index, 1, enable=0) route_1.remove_vpp_config() route_2.remove_vpp_config() sub_if_on_pg3.remove_vpp_config() sub_if_on_pg2.remove_vpp_config() if __name__ == '__main__': unittest.main(testRunner=VppTestRunner)