Upon changing the default SIM card, the radio will create a
new connection to the new subscription. If that subscription
works correctly, the stack will prefer it to the old one as
the new subscription will be marked with a Primary policy
flag it its score.
Normally, at this point the old network lingers to give apps
an opportunity to gracefully migrate their connections. But
with some radios, this may have a dramatic effect on the
performance of the new connection.
This patch introduces a flag so that devices with such radios
can be marked. In this case the stack will move to a degraded
mode and eschew the grace delay for apps and give them a hard
break instead, so that the new network can reach a good
performance immediately. Apps with existing connections will
suffer a worse experience.
If there is a request that can only be served by the old
connection, still keep it, as arguably the user still
expects their MMS be sent on the old connection, even if the
new connection doesn't work well until it's done.
Test: new test in this patch, and add relevant tests in both modes
also manually change the value of the flag and run
FrameworksNetTests and CtsNetTestCasesLatestSdk
Bug: 200226979
Change-Id: I4ace82f90e873bf06298cc689bb1d794ed5124bd
When the avoidBadWifi configuration is false and not overridden,
a WiFi network that was validated in the past but becomes
unvalidated needs to outscore a cell network that is validated.
This is happening correctly when the stack compares two networks.
However, when the stack compares an existing network to an offer
for a cellular network, the offer was automatically considered
not to yield. This would mean the stack would be requesting cell
out of the telephony factory, only for that network to lose to
WiFi and be discarded immediately, then recreated again etc.
When there is some other reason cell should be up (such as the
"mobile always on" setting being active), this would not be
visible because the cell network would have another reason not
to be torn down.
Have offers correctly account for the current value of the
configuration and setting. This has the ranking of the offer
lose against WiFi like the actual network loses, meaning the
offer is not needed.
This also requires updating the offers whenever the value of
the setting changes.
Test: new test for this, also ConnectivityServiceTest
Bug: 195441367
Change-Id: I4fe5de98bc15bcf9bbbe25c6c7c8a7ba382f8db7
Certain network types, like the VCN, have underlying
networks for the purpose of data usage, but do not want to
propagate the underlying network capabilities.
Allow these networks to set underlying networks, but continue
not to propagate the capabilities.
Bug: 190620024
Test: new unit test
Change-Id: I53d6080f48707ff3c37fbfbef534284ba77a7432
At this stage, this is turned off. Unit tests will be
in a followup change.
Test: In a followup
Bug: 167544279
Merged-In: I3c2563d4ae4e3715d0c6270344ba8f7ef067872f
Merged-In: I4448a3546fbc1a3dddf757982c031c5f39ba2889
Change-Id: I4448a3546fbc1a3dddf757982c031c5f39ba2889
(cherry-picked from ag/14010222 with fixes)
This exposes a mechanism for network providers to tell
the network stack that a given network must be kept up
for some specific reason. This is meant to be easier
for them than to have to file a request, in particular
because there is no guaranteed way to make sure the
request will be best matched by any given network.
Test: new test for this
Bug: 167544279
Merged-In: I3c2563d4ae4e3715d0c6270344ba8f7ef067872f
Merged-In: I238a3ee5ee9262477a23b897e4141769dd1505d1
Change-Id: I238a3ee5ee9262477a23b897e4141769dd1505d1
(cherry-picked from ag/13929760)
Move the tests together with packages/Connectivity code, so both can be
moved to packages/modules/Connectivity together.
Also reorganize unit tests in a unit/ directory, as other tests
(integration/, common/ etc.) have been added in tests/net since they
were created. This makes the directory structure consistent.
Test: atest FrameworksNetTests
Bug: 187814163
Merged-In: I254ffd1c08ec058d594b4ea55cbae5505f8497cc
Change-Id: I254ffd1c08ec058d594b4ea55cbae5505f8497cc
