Document their purpose and permissions required in case
this is unhidden in a different code line.
Change-Id: I42f6f950157f488cf51b361e3411861ff98794e8
Helps to make sure the service doesn't throw a
SecurityException for not having the UPDATE_DEVICE_STATS
permission.
Change-Id: I9be0302f1378d2c4441e6b7d5ce472ed0d5fbd80
This seems to be the standard usage, and there are rare reports of
requestLocationUpdates giving NullPointerExceptions on the first call
to requestLocationUpdates but not on subsequent calls (b/10207898).
Change-Id: If7a873fba5a2cd77b836ff3fda89105da20104ac
Hide all new location APIs related to LocationRequest/Geofence and
undeprecate all deprecated APIs consequently to the LocationRequest and
Geofence introduction. Also introduce LocationRequestUnbundled for
LocationProviders to use.
Change-Id: I5b116c7d342041f45b341c88a4b6813571118018
This commit is the result of a comprehensive permissions review for
MR1 release. It addresses a number of deviations from spec and from
MR0's behavior, bringing MR1 into sync with both.
It also cleans up the concept of "location resolution permission",
representing it internally as an enumerated access level to reduce
reliance on cumbersome string manipulation. There's a function to
convert the enum int into a permission string where needed, too.
Additionally, this confines caller-identity-sensitive calls to the
hopefully-obviously-named "getCallerAllowedResolutionLevel()". This
should make it much easier to prove correctness with respect to
accidentally calling functions that depend upon the caller's identity
after identity has already been shed by Binder.clearCallingIdentity().
Change-Id: I446169aee8fb2fde26ac6d04b479b40253782acb
Prevent overflow in LocationRequest.setExpireIn(), for example,
when we pass in Long.MAX_VALUE.
Bug: 7047435
Change-Id: Ie56928a59fb387173fbd3887c0ef9aede00f8152
FusionEngine now attaches a secondary location that has never seen
GPS data to its result. LocationFudger uses the GPS-less location so
that COARSE apps never see data from the GPS provider.
When the previous location is updated, the previous GPS-less location
is carried over if the location update was GPS-only.
Additionally, apps without FINE permission are not notified when GPS
location changes, and any attempt to use GPS_PROVIDER without FINE
permission is met by a stern SecurityException.
Bug: 7153659
Change-Id: I12f26725782892038ce1133561e1908d91378a4a
Fix a couple of bugs, and modify the behavior of the random offset.
The random offset now slowly changes over time, to mitigate against
applications averaging out the offset over time while at a
grid boundary.
Change-Id: Iecffff29145b8c2b30d1eca1662cf9d3e8cff756
Themes: Fused Location, Geofencing, LocationRequest.
API changes
o Fused location is always returned when asking for location by Criteria.
o Fused location is never returned as a LocationProvider object, nor returned
as a provider String. This wouldn't make sense because the current API
design assumes that LocationProvider's have fixed properties (accuracy, power
etc).
o The fused location engine will tune itself based on the criteria passed
by applications.
o Deprecate LocationProvider. Apps should use fused location (via Criteria
class), instead of enumerating through LocationProvider objects. It is
also over-engineered: designed for a world with a plethora of location
providers that never materialized.
o The Criteria class is also over-engineered, with many methods that aren't
currently used, but for now we won't deprecate them since they may have
value in the future. It is now used to tune the fused location engine.
o Deprecate getBestProvider() and getProvider().
o Add getLastKnownLocation(Criteria), so we can return last known
fused locations.
o Apps with only ACCESS_COARSE_LOCATION _can_ now use the GPS, but the location
they receive will be fudged to a 1km radius. They can also use NETWORK
and fused locatoins, which are fudged in the same way if necessary.
o Totally deprecate Criteria, in favor of LocationRequest.
Criteria was designed to map QOS to a location provider. What we
really need is to map QOS to _locations_.
The death knell was the conflicting ACCURACY_ constants on
Criteria, with values 1, 2, 3, 1, 2. Yes not a typo.
o Totally deprecate LocationProvider.
o Deprecate test/mock provider support. They require a named provider,
which is a concept we are moving away from. We do not yet have a
replacement, but I think its ok to deprecate since you also
need to have 'allow mock locations' checked in developer settings.
They will continue to work.
o Deprecate event codes associated with provider status. The fused
provider is _always_ available.
o Introduce Geofence data object to provide an easier path fowards
for polygons etc.
Implementation changes
o Fused implementation: incoming (GPS and NLP) location fixes are given
a weight, that exponentially decays with respect to age and accuracy.
The half-life of age is ~60 seconds, and the half-life of accuracy is
~20 meters. The fixes are weighted and combined to output a fused
location.
o Move Fused Location impl into
frameworks/base/packages/FusedLocation
o Refactor Fused Location behind the IProvider AIDL interface. This allow us
to distribute newer versions of Fused Location in a new APK, at run-time.
o Introduce ServiceWatcher.java, to refactor code used for run-time upgrades of
Fused Location, and the NLP.
o Fused Location is by default run in the system server (but can be moved to
any process or pacakge, even at run-time).
o Plumb the Criteria requirements through to the Fused Location provider via
ILocation.sendExtraCommand(). I re-used this interface to avoid modifying the
ILocation interface, which would have broken run-time upgradability of the
NLP.
o Switch the geofence manager to using fused location.
o Clean up 'adb shell dumpsys location' output.
o Introduce config_locationProviderPackageNames and
config_overlay_locationProviderPackageNames to configure the default
and overlay package names for Geocoder, NLP and FLP.
o Lots of misc cleanup.
o Improve location fudging. Apply random vector then quantize.
o Hide internal POJO's from clients of com.android.location.provider.jar
(NLP and FLP). Introduce wrappers ProviderRequestUnbundled and
ProviderPropertiesUnbundled.
o Introduce ProviderProperties to collapse all the provider accuracy/
bearing/altitude/power plumbing (that is deprecated anyway).
o DELETE lots of code: DummyLocationProvider,
o Rename the (internal) LocationProvider to LocationProviderBase.
o Plumb pid, uid and packageName throughout
LocationManagerService#Receiver to support future features.
TODO: The FLP and Geofencer have a lot of room to be more intelligent
TODO: Documentation
TODO: test test test
Change-Id: Iacefd2f176ed40ce1e23b090a164792aa8819c55
