Automated cherry pick of #2318: Fix cross-Node service access when AntreaProxy is disabled #2324
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tnqn
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## release-1.0 #2324 +/- ##
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- Coverage 61.07% 32.67% -28.41%
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Files 272 266 -6
Lines 20404 19592 -812
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- Hits 12462 6401 -6061
- Misses 6645 12404 +5759
+ Partials 1297 787 -510
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@antoninbas could you help approve this one and #2325? |
antoninbas
approved these changes
Jul 2, 2021
When AntreaProxy is disabled, if the reply traffic of a connection that has been processed by iptables/ipvs rules (of kube-proxy) is received from the tunnel interface, its destination MAC would be rewritten twice because it would have both gatewayCTMark and macRewriteMark set. The latter rewriting would overwrite the former one and would cause the packets to be delivered to the destination Pod directly without doing reversed NAT in the host netns. This patch fixes it by making the pipeline rewrite the destination MAC as most once. It moves the gatewayCTMark related MAC rewriting flow to l3ForwardingTable, to make L3 forwarding decision in same table uniformly. It also simplifies the two gatewayCTMark related flows by matching the direction of traffic which ensures the flow doesn't apply to traffic from the gateway interface. Signed-off-by: Quan Tian <[email protected]>
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Cherry pick of #2318 on release-1.0.
#2318: Fix cross-Node service access when AntreaProxy is disabled
For details on the cherry pick process, see the cherry pick requests page.