In order to notify netd to swap eBPF maps before pulling the
networkStats from eBPF maps, NetworkStatsFactory need to use the
NetdServices to issue binder calls. So it need to be moved from
framework/base/core to framework/base/service since object in
framework/base/core cannot get any system services. This change is also
necessary for setting up a lock inside NetworkStatsFactory to prevent
racing between two netstats caller since the lock need to be hold before
netd trigger the map swap.
Also fix the compile problem caused by moving the NetworkStatsFactory
and the related tests. Rename the packages and the jni functions to a
more proper name.
Bug: 124764595
Bug: 128900919
Test: NetworkStatsFactoryTest
android.app.usage.cts.NetworkUsageStatsTest
android.net.cts.TrafficStatsTest
Change-Id: Ifcfe4df81caf8ede2e4e66a76552cb3200378fa8
The hasBpfSupport() check from BpfUtils is not used by the native helper
in framework. Remove them.
Bug: 111441138
Test: Build without failure.
Change-Id: Icdd01bf1a03efd7883e4939d0d730303ec1004e7
The bpf project now have a new project directory in system/bpf instead
of inside netd. The network related bpf library is renamed to
libnetdbpf. Fix the dependency issue in framework to make sure no
regression.
Test: -m CtsNetTestCases -t android.net.cts.TrafficStatsTest
Bug: 112334572
Change-Id: Ibd477bf17d18d516aa520fb1569f4a395ef9abf0
Add the native implementation for NetworkStatsService to read the
uidStatsMap and tagStatsMap to get the network traffic information.
Currently the implementation only try to get the data from bpf for a
reference but the final value returned is still from old xt_qtaguid
module. So the result will not be effected. The bpf implementation is
depending on libbpf inside netd.
Bug: 30950746
Test: CtsNetTestCases -t android.net.cts.TrafficStatsTest
Change-Id: Ia85e4d4d602f6bd536739d89085e6dc37ad82e15
Move the native implementation of TrafficStats to NetworkStatsService
and apps need to get the NetworkStatsService binder interface from
system_server in order to get the network usage stats since boot. This
implementation can hide the detail of retrieving network traffic
information from apps and the NetworkStatsService can choose which
methoed it use to get the data depending on the kernel version of the
device.
Bug: 30950746
Test: CtsNetTestCases -t android.net.cts.TrafficStatsTest
Change-Id: I53bbefd19aa0b783b9b4b42ea4d76db3e9ec07a3
