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authorYuxiang Zhu <vfreex@gmail.com>2023-08-26 05:28:11 +0000
committerYuxiang Zhu <vfreex@gmail.com>2023-09-09 08:16:04 +0000
commitf909c17aca4d48598d5eaee0df81bf64967902f0 (patch)
tree8641df807e45f9257f1603c0f467d5ec226c9618 /smoketest
parentf494325bfde2ba9ff708fa00a7582a5fb6182486 (diff)
downloadvyos-1x-f909c17aca4d48598d5eaee0df81bf64967902f0.tar.gz
vyos-1x-f909c17aca4d48598d5eaee0df81bf64967902f0.zip
T4502: firewall: Add software flow offload using flowtable
The following commands will enable nftables flowtable offload on interfaces eth0 eth1: ``` set firewall global-options flow-offload software interface <name> set firewall global-options flow-offload hardware interface <name> ``` Generated nftables rules: ``` table inet vyos_offload { flowtable VYOS_FLOWTABLE_software { hook ingress priority filter - 1; devices = { eth0, eth1, eth2, eth3 }; counter } chain VYOS_OFFLOAD_software { type filter hook forward priority filter - 1; policy accept; ct state { established, related } meta l4proto { tcp, udp } flow add @VYOS_FLOWTABLE_software } } ``` Use this option to count packets and bytes for each offloaded flow: ``` set system conntrack flow-accounting ``` To verify a connection is offloaded, run ``` cat /proc/net/nf_conntrack|grep OFFLOAD ``` This PR follows firewalld's implementation: https://github.com/firewalld/firewalld/blob/e748b97787d685d0ca93f58e8d4292e87d3f0da6/src/firewall/core/nftables.py#L590 A good introduction to nftables flowtable: https://thermalcircle.de/doku.php?id=blog:linux:flowtables_1_a_netfilter_nftables_fastpath
Diffstat (limited to 'smoketest')
-rwxr-xr-xsmoketest/scripts/cli/test_firewall.py12
1 files changed, 12 insertions, 0 deletions
diff --git a/smoketest/scripts/cli/test_firewall.py b/smoketest/scripts/cli/test_firewall.py
index f74ce4b72..391ef03ff 100755
--- a/smoketest/scripts/cli/test_firewall.py
+++ b/smoketest/scripts/cli/test_firewall.py
@@ -603,5 +603,17 @@ class TestFirewall(VyOSUnitTestSHIM.TestCase):
with open(path, 'r') as f:
self.assertNotEqual(f.read().strip(), conf['default'], msg=path)
+ def test_flow_offload_software(self):
+ self.cli_set(['firewall', 'global-options', 'flow-offload', 'software', 'interface', 'eth0'])
+ self.cli_commit()
+ nftables_search = [
+ ['flowtable VYOS_FLOWTABLE_software'],
+ ['hook ingress priority filter - 1'],
+ ['devices = { eth0 }'],
+ ['flow add @VYOS_FLOWTABLE_software'],
+ ]
+ self.verify_nftables(nftables_search, 'inet vyos_offload')
+
+
if __name__ == '__main__':
unittest.main(verbosity=2)