add LastMileLogger
Add the LastMileLogger class, which manages the tracing
of kernel wifi events. These events will include
cfg80211 API calls, cfg80211 events, and data-path
events on the Wifi interface.
Note:
- The LastMileLogger itself does _not_ control which
events are logged. LML simply a) controls when
logging is enabled/disabled, and b) retrieves the
trace data when appropriate.
- The events to be logged will be controlled by an
init script. Separating the control reduces the
risk that a compromised system_server captures
more data than it should.
- Later CLs will actually plumb all the bits together
(LastMileLogger, init script, WifiStateMachine,
WifiDiagnostics, etc.). As of this CL, LML isn't
actually instantiated in WifiService.
Bug: 34180821
Test: tests/wifitests/runtests.sh (on angler)
Change-Id: I2facf70b93a0f824fbb08c1bddb415bcbdc7e504
2 files changed
