zeroconf: make continuous browse spec-conformant for device - #1
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AhmadAbdullah668
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Aug 24, 2026
Currently, client only captures first entry and swallows any further updates. This commit has modifications to handle IP-address change, departures, and stale entries as per RFC 6792. - Surface entry change: re-deliver an entry when its address/port/TXT differs from what was last sent. This handles an IP-address change (RFC 6762 §8.4 / §10.2). - Goodbye handling: on a TTL==0 record, deliver a removal to the subscriber rather than silently dropping it (RFC 6762 §10.1). - TTL-expiry sweep: track per-entry expiry and sweep on a ticker, so a device that leaves without a goodbye is eventually removed instead of lingering forever (RFC 6762 §10). - Continuous-query backoff: set Multiplier=2 and MaxInterval=30m (was the default 1.5 / 60s) so periodic re-query grows by at least a factor of two up to a <=60m cap (RFC 6762 §5.2).
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zeroconf: make continuous browse spec-conformant for device
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zeroconf: make continuous browse spec-conformant for device
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Currently, a zeroconf client only captures first entry and swallows any further updates. This prevents it from handling cases where its cache needs to be updated, making continuous browsing difficult. This PR has modifications to handle IP-address change, departures, and stale entries as per RFC 6792 to update the internal browse cache and track entries properly.