Now stores tags other than TAG_NONE (0x0), which are useful for app
debugging. Combine UID and tag together into single long key, and
expose tag data through AIDL when requested. Change NMS to track
TAG_NONE as total UID traffic, matching the kernel definition.
Added TAG_MAX_HISTORY to control how long tag-granularity statistics
are stored; overall UID usage is still kept for UID_MAX_HISTORY. Fix
bug to trim NetworkStatsHistory outside normal polling loops to catch
non-active networks and UIDs.
Test to verify UID and tag packing, and to verify that UID traffic on
two networks are combined to match MOBILE_ALL template.
Change-Id: If0e039416d9e7f63b1a39e04cddfb1133b5a78ee
When UID_REMOVED, clean up any existing UID network policy so it
doesn't linger for future apps. Also move any NetworkStatsHistory
to special UID_REMOVED tracking bucket.
Tests for new removal code. Also test detailed UID stats, including
network changes to verify template matching logic.
Bug: 4584212
Change-Id: I9faadf6b6f3830eb45d86c7f1980a27cdbcdb11e
Teach NMS to read qtaguid stats from kernel, but fall back to older
stats when kernel doesn't support. Add "tags" to NetworkStats entries
to support qtaguid. To work around double-reporting bug, subtract
tagged stats from TAG_NONE entry.
Flesh out stronger NetworkTemplate. All NetworkStatsService requests
now require a template, and moved matching logic into template.
Record UID stats keyed on complete NetworkIdentitySet definition,
similar to how interface stats are stored. Since previous UID stats
didn't have iface breakdown, discard during file format upgrade.
Change-Id: I0447b5e7d205d73d28e71c889c568e536e91b8e4
Instead of embedding complex template coexistence rules into policy
service, rely on external editors to enforce, and offer atomic
get/set operations for full policy sets.
Generate default mobile policy when none exists, using default of 4GB
warning and cycle reset of current day. Dispatch listener events
through Handler when holding internal lock, and catch CLASS_UNKNOWN
networks in 3G_LOWER template.
Change-Id: I063cf1eaf330e32b75d0697b89fc04488e6dfaea
NetworkStats now grows in place with arraycopy() instead of callers
needing to know record count a priori. Better growth calculation for
both NetworkStats and NetworkStatsHistory; 50% each time. Better
estimates of buckets needed in calling services.
Change-Id: I3adbffa0b7407612cc6349d9135a8b4eb63cd440
Define NetworkPolicy as cycle-reset day and warning/limit values, and
set/get through NetworkPolicyManager. Watch ConnectivityManager for
network connection events, and apply quota rules based on matching
interfaces. Policy service matches based on strong identity to support
IMSI-specific policy values.
Calculates remaining quota based on current stats recorded since the
last reset cycle day. Tests to verify edge cases around February.
Persist network and UID policies in XML, and restore on boot.
Change-Id: Id40ba7d6eed6094fbd5e18e6331286c606880d80
Implements read/write of network stats using AtomicFile, along with
magic number and versioning. Stores in "/data/system/netstats.bin"
for now. Tests to verify that stats are persisted across a simulated
reboot, and to verify that TEMPLATE_WIFI is working.
Fixed bug where kernel counters rolling backwards would cause negative
stats to be recorded; now we clamp deltas at 0.
Change-Id: I53bce26fc8fd3f4ab1e34ce135d302edfa34db34
When given a start/end range, interpolate between buckets to return
the total network usage. Used to summarize detailed UID stats. Method
to combine NetworkStatsHistory regardless of bucket size. Used to
combine all histories matching a template.
Added tests for both methods.
Change-Id: Ia463910c0ecf7cf08dcf97c658ad99742bd6b882
Collect UID-granularity network stats during regular poll event. Add
dumpsys argument to generate fake historical data for debugging, and
move stats parameters to Settings.Secure.
Change-Id: I09b36a2955dc10c697d4b9c3ff23dcb3ac37bd70
Instead of deriving network identity based on raw subsystem broadcasts,
listen for updates from ConnectivityService. Added atomic view of all
active NetworkState, and build map from "iface" to NetworkIdentity set
for stats tracking.
To avoid exposing internal complexity, INetworkStatsService calls use
general templates. Added TelephonyManager mapping to classify network
types using broad labels like "3G" or "4G", used to drive templates.
Cleaned up Objects and Preconditions.
Change-Id: I1d4c1403f0503bc3635a59bb378841ba42239a91
Periodically records delta network traffic into historical buckets to
support other services, such NetworkPolicyManager and Settings UI.
Introduces NetworkStatsHistory structure which contains sparse, uniform
buckets of data usage defined by timestamps. Service periodically
polls NetworkStats and records changes into buckets. It only persists
to disk when substantial changes have occured. Current parameters
create 4 buckets each day, and persist for 90 days, resulting in about
8kB of data per network.
Only records stats for "well known" network interfaces that have been
claimed by Telephony or Wi-Fi subsystems. Historical stats are also
keyed off identity (such as IMSI) to support SIM swapping.
Change-Id: Ia27d1289556a2bf9545fbc4f3b789425a01be53a
Added startDataProfiling() and stopDataProfiling() to TrafficStats,
which can be used by apps to measure network usage delta between two
points in time. Currently takes two NetworkStats snapshots and returns
delta, which will eventually include tag-level granularity. Added
tests for NetworkStats delta subtraction.
Added NMS.getNetworkStatsUidDetail() that returns stats for specific
UID. Always gives stats access for the calling UID, otherwise enforces
that caller has permission. Fix readSingleLongFromFile(), since
/proc/ files don't have well-defined lengths.
Change-Id: Ic5b6414d8effbd66846e275b00d4b8a82c74589d
Introduces public API to apply "tags" to track data traffic originating
from the current thread. (Under the hood, the tags are maintained and
applied in BlockGuard.) Also adds tag/untag methods for developers who
maintain their own Socket pools.
Change-Id: Ic2dd3155559a93a7b613c7853748d4c44fb3a39e
Introduce NetworkStats which is a collection of network statistics,
which should match the structure communicated by kernel module through
netd. Will introduce tags and fg/bg stats later. Kept entirely in a
flat data structure to optimize parcel speed.
Initial pass at returning NetworkStats from NetworkManagementService,
both summary and details. Will eventually pull data from kernel module
over netd connection.
Change-Id: I92d9f61678ec8c22e2ce26775fb035a0cf32413f
Use ScopedUtfChars (fixes a leak in TrafficStats, and fixes a crash in Wifi in
a case where GetStringChars could have been called with a pending exception).
Change-Id: I3465ff392b4038dfdafa6af80ec1314cc6d6a11c
Also change phone's ConnectionStateTrackers to use it directly,
rather than through the INetStat binder interface.
Bug: 2578938
Change-Id: I8858e2609cbec3be845a0ce5178cb03f67e01b41
This class (a rename of NetStat) provides network byte and packet statistics.
NetStat will be removed separately, to avoid breaking other packages when submitting.
