Use direct '_ssc._tcp.local.' browsing instead of DNS-SD services enumeration - #1
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michten wants to merge 1 commit into
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Use direct '_ssc._tcp.local.' browsing instead of DNS-SD services enumeration#1michten wants to merge 1 commit into
michten wants to merge 1 commit into
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Hello,
After using khtool for some time I noticed that it is not able to find, during a new scan the KH120 II speakers, after waking them from standby and restarting PC.
I've troubleshoot this little bit with help of ai, using tcpdump and avahi-browse; in current implementation after running khtool --scan
0 PTR (QU)? _services._dns-sd._udp.local. (46)
is sent, but the speakers at that moment do not advertise their '_ssc._tcp.local.' service until they receive a direct query, thus they do not appear in the DNS-SD browse results.
In modified scan.py direct '_ssc._tcp.local.' browsing is used instead of enumerating all DNS-SD service types available in cache.
This library currently communicates over TCP only, therefore browsing '_ssc._tcp.local.' directly is sufficient.