Currently, NET_CAPABILITY_NOT_VCN_MANAGED is implicited added for
NetworkRequest built by normal apps.
However, the tethering network agent doesn't have this capability,
which makes the agent being exposed to VcnManager and cannot be
seen by normal apps.
Add NET_CAPABILITY_NOT_VCN_MANAGED to tethering NetworkAgent. Include
NET_CAPABILITY_NOT_VCN_MANAGED in local network capabilities for
metrics and API utilities to ensure correct evaluation of local
network connectivity. Update unit tests to reflect the new capability.
Flag: EXEMPT bug fix
Test: atest ConnectivityCoverageTests:android.net.connectivity.com.android.server.CSSatisfiedByLocalNetworkMetricsTest \
ConnectivityCoverageTests:android.net.connectivity.com.android.metrics.SatisfiedByLocalNetworkMetricsTest \
--update-device
Test: manual generate request by CTS and statsd_testdrive -e 10247
Bug: 428098173
Change-Id: Ifa9ce0827abd22d887a0e8a2ab6f4d7391b2b8ed
This commit introduces the UID to the NetworkNsdReportedMetrics,
allowing for the association of NSD metrics with the specific
application or process that initiated the NSD operation.
Bug: 427689120
Test: atest ConnectivityCoverageTests NsdManagerTest
Flag: EXEMPT refactor
Change-Id: I780cd6ba74d2ef7e23200f83f497691dd4702919
This includes:
1. Fix Race Condition: The call to `logRequest` is moved before
`trackUidAndRegisterNetworkRequest`. This prevents a race condition
where the `NetworkRequest` object could be modified on the handler
thread before its initial state was logged.
2. Clear Metrics on Pull: The metrics map is now cleared after the
data is pulled. This changes the atom from a cumulative
counter to a periodic one, simplifying server-side aggregation.
Bug: 406172997
Flag: EXEMPT controlled by the `satisfied_by_local_network_metrics`
Test: atest ConnectivityCoverageTests:android.net.connectivity.com.android.server.CSSatisfiedByLocalNetworkMetricsTest \
ConnectivityCoverageTests:android.net.connectivity.com.android.metrics.SatisfiedByLocalNetworkMetricsTest \
--update-device
Change-Id: Ia3b74088183c95173ab07a4f72393065bca2bafe
This change introduces `SatisfiedByLocalNetworkMetrics` to count the
number of `NetworkRequest`s per UID that can be satisfied by a
local-only network.
The purpose is to gather data on how many applications register callbacks
that would match non-thread local network connectivity.
This data helps in understanding app behavior and can inform
future development of local-only network features particularly
for the backward compatibility of existing NetworkRequests.
- A new class `SatisfiedByLocalNetworkMetrics` handles the counting and
logging logic.
- `ConnectivityService` calls into this class upon `NetworkRequest`
registration.
- Counts are logged to statsd.
Sample dumpsys output:
SatisfiedByLocalNetworkMetrics: {LISTEN={10217=2}}
Bug: 406172997
Flag: EXEMPT controlled by the `satisfied_by_local_network_metrics`
Test: atest ConnectivityCoverageTests:android.net.connectivity.com.android.server.CSSatisfiedByLocalNetworkMetricsTest \
ConnectivityCoverageTests:android.net.connectivity.com.android.metrics.SatisfiedByLocalNetworkMetricsTest \
--update-device
Test: m statsd_testdrive && statsd_testdrive -e 10247
Test: Manual: atest dumpsys connectivity
Change-Id: I62f6299a1c726537b373e3e80d41a494323f3cf2
This change includes:
1. addEvent Parameter Update: Added satisfied duration to
addEvent, making duration testable in CSTest.
2. CSDefaultNetworkRematchMetricsTest Refactor: Tests now use
expectAddEvent with argThat and InOrder for more deterministic
verification.
3. New Unit Test: Added a test to demonstrate a metrics reporting
issue during per-app default network request updates.
Test: atest ConnectivityCoverageTests --test-filter 'DefaultNetworkRematch*' \
--update-device
Flag: EXEMPT Test only refactoring
Bug: 419123367
Change-Id: I3c73b445674991f85e37b3f980fa80fb918713ac
This change introduces the `DefaultNetworkRematchMetrics`
class to collect and log data about default network reassignments.
The primary motivation is to monitor the behavior of satellite
networks when they act as a default network fallback. This class
records an event whenever a default network request with the
`PREFERENCE_ORDER_SATELLITE_FALLBACK` preference is moved from
one network to another.
For each reassignment, a `DEFAULT_NETWORK_REMATCH` atom is logged
to ConnectivityStatsLog. This atom includes detailed `NetworkDescription`
protos for the old and new networks, capturing their transport
types, capabilities, and metered/validated states. It also logs
the duration the device spent on the previous network.
Sample metrics:
event_metrics {
data {
aggregated_atom_info {
atom {
default_network_rematch {
session_id: 1099094483789245667
rematch_reason: RMR_UNKNOWN
default_network_rematch_info_list {
default_network_rematch_info {
old_network {
transport_types: 1
metered_state: METERED_YES
validated_state: VS_VALID
score_policies: -4575657221408423932
capabilities: 137711448064
enterprise_id: 0
}
time_duration_on_old_network_sec: 9
uid_ranges {
uid_range {
begin: 10137
end: 10137
}
}
}
}
}
}
elapsed_timestamp_nanos: 73821951490
}
}
}
Test: atest ConnectivityCoverageTests:android.net.connectivity.com.android.metrics.DefaultNetworkRematchMetricsTest \
--update-device
Test: Manual:
1. Change code to use TRANSPORT_CELLULAR
2. m statsd_testdrive && statsd_testdrive -e 525
3. Turn off mobile data.
Flag: EXEMPT controlled by kill switch
Bug: 419123367
Change-Id: I40ba78d81cd30b2dc783e855aa76e776f76ace98
The previous implementation used a fixed start timestamp for
querying network usage statistics, initialized based on the
device's boot time. This caused the query window to grow
indefinitely as the device uptime increased, leading to
inefficient queries that fetched and processed a large
ever-expanding amount of historical data.
This change refactors the logic to use a rolling start
timestamp. The `mStartTime` is now updated after each
usage report is generated (in `onLost`). By resetting
the start time to a more recent point (current time
minus one bucket duration), we ensure that subsequent
queries for usage snapshots are performed over a small,
manageable time window.
This optimization prevents fetching excessive data
from the NetworkStatsManager, improving the efficiency
of the metrics collector. Dependencies for time and
duration have also been abstracted for better testability.
Test: atest ConnectivityCoverageTests:android.net.connectivity.com.android.metrics.SatelliteCoarseUsageMetricsCollectorTest \
--update-device
Flag: EXEMPT controlled with kill switch
Bug: 419123367
Change-Id: I49d3b044f0a038093060f5541ea263d2d0d253a2
In the reportServiceDiscoveryStop function, the isKnownService
value is not set. This means that it is not possible to track
how many discovery queries are answered from cache. To track
this information, add the isKnownService to
reportServiceDiscoveryStop.
Fix: 339738663
Test: atest FrameworksNetTests NsdManagerTest
Change-Id: Idf9948826d3b8ffff9bce4f224543af87c653d80
In the reportServiceResolutionStop function, the sent query count
is not set. This means it's impossible to track how many queries
are sent when a service is not resolved successfully. To track
this information, add the sent query count to
reportServiceResolutionStop.
Fix: 333302084
Test: atest FrameworksNetTets NsdManagerTest
Change-Id: Ida2a33ea35e9bb7393fe860245eb5ad8578d5ff6
This CL updates CSTest to use mocked appOpsManager to bypass
checkPackage enforcement so that test can file network request as
SYSTEM_UID
Bug: 314627716
Test: atest ConnectivitySampleMetricsTest
Change-Id: I0a5f3b1bf2c343644e6f5e2a4ec1b0460e2645c4
testSampleConnectivityState was flaky since sometimes networks were
disconnected before ConnectivityService#sampleConnectivityState
generates metrics
This CL fixes this issue by adding setKeepConnectedReason to prevent
networks are disconnected
Bug: 318546530
Test: TH
Change-Id: I824f5cd379c8144b48341cc0fd18eb976a4b1cde
This reverts commit e3245081b1.
Reason for revert: The change is unsafe as it introduces code with writings to a separate thread whose message queue size is unlimited.
Test: atest FrameworksNetTests
Change-Id: I392a30f77cfbcd17f420e29f0944604fd789b10a
The isLegacy field of Nsd metrics should indicate whether the
data was collected from the old backend or not. However, it is
currently only dependent on the ENABLE_PLATFORM_MDNS_BACKEND
compat change value, which is incorrect. This is because the
NsdService always uses the new backend since Android U,
regardless of the compat change value. Therefore, the isLegacy
data should be obtained from each transaction.
Bug: 287546772
Bug: 299880473
Test: atest FrameworksNetTestCases NsdManagerTest
Change-Id: I156abd656b90578d710696a69ccf7dfca97a2c9c
Report more advertising metrics data below when the service is
unregistered.
- Replied request count (sum across interfaces)
- Sent packet count (including announcements and probes)
- Number of conflicts during probing
- Nubmer of conflicts after probing
Bug: 287546772
Test: atest FrameworksNetTestCases NsdManagerTest
Merged-In: I50c54a35dc523422e3a7302c059bbbc38eac5631
Change-Id: I50c54a35dc523422e3a7302c059bbbc38eac5631
Report the sent query count when the discovery is stopped.
Bug: 287546772
Test: atest FrameworksNetTestCases NsdManagerTest
Change-Id: I47b91c0c530eee2f00920ee5ea99e8d7b6e2e9ee
Collect information on resolution success and failure events,
then use this data to build metrics and report them.
Bug: 287546772
Test: atest FrameworksNetTestCases NsdManagerTest
Change-Id: I373ce91fea9d5a278f53fc0c505be90dd39b2d5b
Collect information on discovery start, failure, and stop events,
then use this data to build metrics and report them.
Bug: 287546772
Test: atest FrameworksNetTestCases NsdManagerTest
Change-Id: I2f6a718024870f9658cfeabe8995624a3ad81f05
Collect information about registration successes, failures, and
unregistrations, then build metrics data from this information
and report it.
Bug: 287546772
Test: atest FrameworksNetTestCases NsdManagerTest
Change-Id: I6324279b479da2e61b7519d96df5ad24a432e54a
Junyu Lai
commited 
Paul Hu
commited 
Motomu Utsumi
commited 
Danuta Brotikovskaya
commited 
Chalard Jean
commited