feat(iface): support targeted neighbor invalidation - #24
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Expose an interface-level operation that removes one dynamically learned neighbor mapping together with its discovery rate-limit state. This lets external control planes retire stale dynamic state without flushing unrelated entries. Add focused cache coverage proving that invalidation clears only the selected key and permits immediate rediscovery. Signed-off-by: longjin <longjin@dragonos.org>
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The failing matrix jobs are unrelated to this two-file change: they fail in pre-existing |
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Summary
Motivation
DragonOS rtnetlink configured neighbors temporarily override dynamic resolution. When a configured entry is deleted, the previous dynamic mapping must not silently become active again; the next packet must perform fresh discovery. A per-key API avoids flushing the full cache.
Validation
cargo fmt --all -- --checkcargo test --features medium-ethernet,proto-ipv4,proto-ipv6 --lib iface::neighbor::test::test_remove_one_mapping_and_rate_limit