feat(dns): attribute connections to hostnames via observed DNS responses#249
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domcyrus wants to merge 1 commit into
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feat(dns): attribute connections to hostnames via observed DNS responses#249domcyrus wants to merge 1 commit into
domcyrus wants to merge 1 commit into
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Build an IP to domain cache from DNS responses on the wire and tag connections that lack SNI / Host (encrypted QUIC, plain TCP, fragmented ClientHello) with the matching hostname, prefixed with ~ in the UI. Event-driven: connections that miss the cache at creation enroll into a side index keyed by their remote IP. The next matching DNS response drains the waiters in O(matches), so per-packet attribution work is zero. A 10s window applies symmetrically to cache freshness and pending enrollment age, matching Little Snitch's MAX_QUERY_AGE.
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Build an IP to domain cache from DNS responses on the wire and tag connections that lack SNI / Host (encrypted QUIC, plain TCP, fragmented ClientHello) with the matching hostname, prefixed with ~ in the UI.
Event-driven: connections that miss the cache at creation enroll into a side index keyed by their remote IP. The next matching DNS response drains the waiters in O(matches), so per-packet attribution work is zero. A 10s window applies symmetrically to cache freshness and pending enrollment age, matching Little Snitch's MAX_QUERY_AGE.