Suite for testing ability of Poll Mode Driver to turn promiscuous
mode on/off, allmulticast mode on/off, and show expected behavior
when sending packets with known, unknown, broadcast, and multicast
destination MAC addresses.
Depends-on: patch-1142113 ("add send_packets to test suites and rework
packet addressing")
Signed-off-by: Dean Marx <dm...@iol.unh.edu>
---
dts/tests/TestSuite_dynamic_config.py | 152 ++++++++++++++++++++++++++
1 file changed, 152 insertions(+)
create mode 100644 dts/tests/TestSuite_dynamic_config.py
diff --git a/dts/tests/TestSuite_dynamic_config.py
b/dts/tests/TestSuite_dynamic_config.py
new file mode 100644
index 0000000000..d6d26419f0
--- /dev/null
+++ b/dts/tests/TestSuite_dynamic_config.py
@@ -0,0 +1,152 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2024 University of New Hampshire
+
+"""Dynamic configuration capabilities test suite.
+
+This suite checks that it is possible to change the configuration of a port
+dynamically. The Poll Mode Driver should be able to enable and disable
+promiscuous mode on each port, as well as check the Rx and Tx packets of
+each port. Promiscuous mode in networking passes all traffic a NIC receives
+to the CPU, rather than just frames with matching MAC addresses. Each test
+case sends a packet with a matching address, and one with an unknown address,
+to ensure this behavior is shown.
+
+If packets should be received and forwarded, or received and not forwarded,
+depending on the configuration, the port info should match the expected
behavior.
+"""
+
+from time import sleep
+
+from scapy.layers.inet import IP # type: ignore[import-untyped]
+from scapy.layers.l2 import Ether # type: ignore[import-untyped]
+from scapy.packet import Raw # type: ignore[import-untyped]
+
+from framework.params.testpmd import SimpleForwardingModes
+from framework.remote_session.testpmd_shell import TestPmdShell
+from framework.test_suite import TestSuite
+
+
+class TestDynamicConfig(TestSuite):
+ """Dynamic config suite.
+
+ Use the show port commands to see the MAC address and promisc mode status
+ of the Rx port on the DUT. The suite will check the Rx and Tx packets
+ of each port after configuring promiscuous, multicast, and default mode
+ on the DUT to verify the expected behavior. It consists of four test cases:
+
+ 1. Default mode: verify packets are received and forwarded.
+ 2. Disable promiscuous mode: verify that packets are received
+ only for the packet with destination address matching the port address.
+ 3. Disable promiscuous mode broadcast: verify that packets with destination
+ MAC address not matching the port are received and not forwarded, and
verify
+ that broadcast packets are received and forwarded.
+ 4. Disable promiscuous mode multicast: verify that packets with destination
+ MAC address not matching the port are received and not forwarded, and
verify
+ that multicast packets are received and forwarded.
+ """
+
+ def set_up_suite(self) -> None:
+ """Set up the test suite.
+
+ Setup:
+ Verify that at least two ports are open for session.
+ """
+ self.verify(len(self._port_links) > 1, "Not enough ports")
+
+ def send_packet_and_verify(self, should_receive: bool, mac_address: str)
-> None:
+ """Generate, send and verify packets.
+
+ Generate a packet and send to the DUT, verify that packet is forwarded
from DUT to
+ traffic generator if that behavior is expected.
+
+ Args:
+ should_receive: Indicate whether the packet should be received.
+ mac_address: Destination MAC address to generate in packet.
+ """
+ packet = Ether(dst=mac_address) / IP() / Raw(load="xxxxx")
+ received = self.send_packet_and_capture(packet)
+ contains_packet = any(
+ packet.haslayer(Raw) and b"xxxxx" in packet.load for packet in
received
+ )
+ self.verify(
+ should_receive == contains_packet,
+ f"Packet was {'dropped' if should_receive else 'received'}",
+ )
+
+ def disable_promisc_setup(self, port_id: int) -> TestPmdShell:
+ """Sets up testpmd shell config for cases where promisc mode is
disabled.
+
+ Args:
+ port_id: Port number to disable promisc mode on.
+
+ Returns:
+ shell: interactive testpmd shell object.
+ """
+ shell = TestPmdShell(node=self.sut_node)
+ shell.start()
+ shell.set_promisc(port=port_id, on=False)
+ shell.set_forward_mode(SimpleForwardingModes.io)
+ return shell
+
+ def test_default_mode(self) -> None:
+ """Tests default configuration.
+
+ Creates a testpmd shell, verifies that promiscuous mode is enabled by
default,
+ and sends two packets; one matching source MAC address and one unknown.
+ Verifies that both are received.
+ """
+ testpmd = TestPmdShell(node=self.sut_node)
+ isPromisc = testpmd.show_port_info(0).is_promiscuous_mode_enabled
+ self.verify(isPromisc, "Promiscuous mode was not enabled by default.")
+ testpmd.start()
+ mac = testpmd.show_port_info(0).mac_address
+ # send a packet with Rx port mac address
+ self.send_packet_and_verify(should_receive=True, mac_address=str(mac))
+ # send a packet with mismatched mac address
+ self.send_packet_and_verify(should_receive=True,
mac_address="00:00:00:00:00:01")
+ testpmd.close()
+ sleep(6)
+
+ def test_disable_promisc(self) -> None:
+ """Tests disabled promiscuous mode configuration.
+
+ Creates an interactive testpmd shell, disables promiscuous mode,
+ and sends two packets; one matching source MAC address and one unknown.
+ Verifies that only the matching address packet is received.
+ """
+ testpmd = self.disable_promisc_setup(port_id=0)
+ mac = testpmd.show_port_info(0).mac_address
+ self.send_packet_and_verify(should_receive=True, mac_address=str(mac))
+ self.send_packet_and_verify(should_receive=False,
mac_address="00:00:00:00:00:01")
+ testpmd.close()
+ sleep(6)
+
+ def test_disable_promisc_broadcast(self) -> None:
+ """Tests broadcast reception with disabled promisc mode config.
+
+ Creates an interactive testpmd shell, disables promiscuous mode,
+ and sends two packets; one matching source MAC address and one
broadcast.
+ Verifies that both packets are received.
+ """
+ testpmd = self.disable_promisc_setup(port_id=0)
+ mac = testpmd.show_port_info(0).mac_address
+ self.send_packet_and_verify(should_receive=True, mac_address=str(mac))
+ self.send_packet_and_verify(should_receive=True,
mac_address="ff:ff:ff:ff:ff:ff")
+ testpmd.close()
+ sleep(6)
+
+ def test_disable_promisc_multicast(self) -> None:
+ """Tests allmulticast mode with disabled promisc config.
+
+ Creates an interactive testpmd shell, disables promiscuous mode,
+ and sends two packets; one matching source MAC address and one
multicast.
+ Verifies that the multicast packet is only received once allmulticast
mode is enabled.
+ """
+ testpmd = self.disable_promisc_setup(port_id=0)
+ testpmd.set_multicast_all(on=False)
+ # 01:00:5E:00:00:01 is the first of the multicast MAC range of
addresses
+ self.send_packet_and_verify(should_receive=False,
mac_address="01:00:5E:00:00:01")
+ testpmd.set_multicast_all(on=True)
+ self.send_packet_and_verify(should_receive=True,
mac_address="01:00:05E:00:00:01")
+ testpmd.close()
+ sleep(6)
--
2.44.0
