MdnsSocketProvider expects no overlap between NetworkCallbacks,
Tethering, and Wifi P2P. However, local NetworkAgents can cause
overlap, leading to duplicate sockets. This commit fixes the issue by
skipping networks with NET_CAPABILITY_LOCAL_NETWORK.
Alternatively, the NetworkRequest should addForbiddenCapability
for local networks. However, since this is a module API, it is
not visible to standalone applications.
Flag: EXEMPT bug fix
Test: atest ConnectivityCoverageTests:android.net.connectivity.com.android.server.connectivity.mdns.MdnsSocketProviderTest \
--update-device
Test: m service-connectivity-mdns-standalone-build-test
Test: atest CtsNetTestCases:android.net.cts.NsdManagerTest \
CtsNetTestCases:android.net.cts.NsdManagerDownstreamTetheringTest
Bug: 437038495
Change-Id: I78dd7d98ad80147ca26ec6130b6081ef4efb2ecc
eb80e8ad9f