NetworkStatsFactory is owned by NetworkStatsService, and any
accesses to NSF data should go through NSS.
Test: atest FrameworksNetTests
Change-Id: Idbd0dbbaeb11313f63474e7ec0e01f974349fc89
NetworkStatsService is the only consumer of the data coming from
NetworkStatsFactory, but the factory itself is instantiated and
owned by NetworkManagementService.
Move it into NetworkStatsService instead.
Test: atest FrameworksNetTests
Change-Id: I52df1e545c646927952579da22845a12d1d7563b
This ensures the constructor takes the necessary lock before
accessing memmber variables.
Bug: 113122541
Test: atest FrameworksNetTests
Change-Id: Ibd324ed922c738b8d77d4eb74f45b75c6645bdc7
NetworkStatsService uses an internal boolean to know when it has
started for the purpose of preventing access to other internal
variables before they are initialized.
However that boolean is set to true in systemReady() non-atomically
with respect to the initialization of the other variables it guards,
which can cause the system server to crash.
This patch fixes this concurrency bug by moving setting the internal
boolean flag and the variable it guards in one atomic synchronized
block.
This patch also removes code checking if bandwidth control is enabled,
because this is now always true.
Bug: 132767673
Test: Compiled.
Change-Id: Ia089b5767ce271d669879c975508654d4dd03429
am: 85c6ebcce9 -s ours
am skip reason: change_id If2ef8d8f038f32c8cf974aa02cfc1dc7e44dbad3 with SHA1 d749767f44 is in history
Change-Id: I2081b6633b1d0f61bff7531a082e0b6856c23b5b
am: f80234a9b0 -s ours
am skip reason: change_id If2ef8d8f038f32c8cf974aa02cfc1dc7e44dbad3 with SHA1 d749767f44 is in history
Change-Id: I5b525feb1e7df2a89dea4f38b521973ccaac0746
This change inlines the logic from readNetworkStatsDetailInternal, and
reduces reundant checks in mUseBpfStats
Bug: 113122541
Test: atest FrameworksNetTests run, passing
Merged-In: If2ef8d8f038f32c8cf974aa02cfc1dc7e44dbad3
Change-Id: If7d41052115ed145da8a610d676f6ed33c8d5e63
(cherry picked from commit 8c9d8c5e05cd35a340c4224c61f7fa9e95b5c861)
This change removes the now-unused VPN arrays in the network stats
observer and recorder classes. These are always null values in every
call site.
Bug: 113122541
Bug: 120145746
Bug: 129264869
Bug: 134244752
Test: FrameworksNetTest passing
Test: Manual tests show data usage fixes maintained.
Merged-In: Ieb8645acc400fdaeb0df7092c5369b96f9f35af9
Change-Id: I66f263d7e12bce7668901306c0c2ecdda634abaf
(cherry picked from commit 833603caabb1a850a63a970fc285b4c8ed7401f8)
This change fixes detailed UID stats to ensure network and battery stats
both take VPNs into account. NetworkStatsFactory is being made aware of
VPNs enabled, and the full set of underlying networks present.
Since traffic can only be migrated over a NetworkStats delta, NSF
maintains a NetworkStats snapshot across all UIDs/ifaces/tags.
This snapshot gets updated whenever NSF records a new snapshot
(based on various hooks such as VPN updating its underlying networks,
network getting lost, etc.), or NetworkStatsService's
getDetailedUidStats() method being called.
This change widens the scope of the existing mPersistentSnapshot lock,
renaming it to mPersistentDataLock, and ensures that TUN migrations are
not done in parallel. Additionally, mVpnInfos is updated via
pointer-swapping, to reduce the scope of the mPersistentDataLock.
The safety of this change is predicated on:
1. NetworkStatsFactory lock not held, so services cannot deadlock through
the cyclical lock.
2. The broadening of the scope of the lock in NetworkStatsFactory has no
threading implications, as it is always the last (leaf node) lock held,
and therefore is impossible to have lock inversion.
Additionally, to ensure VPNs work with 464xlat, the VPN info passed to
the NetworkStatsFactory includes all underlying interfaces, instead of
only passing the first one.
This (partially) re-applies changes from:
aosp/972848: Add one more test for VPN usage stats.
aosp/972847: Addressing comments for http://ag/7700679.
aosp/885338: NetworkStatsService: Fix getDetailedUidStats to take VPNs
into account.
Co-developed with: Varun Anand <vaanand@google.com>
Bug: 113122541
Bug: 120145746
Bug: 129264869
Bug: 134244752
Test: FrameworksNetTest passing
Test: Manual tests show data usage fixes maintained.
Merged-In: I6466ec1411fc5ed6954125d27d353b6cd1be719e
Change-Id: Id45ae956ad7165be346ecc010e17d260563ac1c0
(cherry picked from commit 9fbbdebc61513982a6775460e1d400956f803bde)
This change removes an unused parameter that is always null in
getNetworkStatsUidDetail
Bug: 113122541
Bug: 134244752
Test: FrameworksNetTest passing
Merged-In: I995b108ef30e1fbd6190131ed4db40a3d9327eb5
Change-Id: I575a7e4fa145f2c93537f33a2bfe952aeafd0e69
(cherry picked from commit 5823e8d3c69b10ad2a458e491c146631457ca86d)
This reverts commit d8220c20507f0c346f517d715c7b9826b04d64e2.
Reason for revert: Fix available for deadlocks.
Bug: 113122541
Bug: 134244752
Merged-In: Ib65214598837289bd39dbf040b56ab7835f893ba
Change-Id: Ia90bf2c72ef686e80800d113d03548e0efcadb66
(cherry picked from commit a84d9fa57247cf78a9297b0c6dbd3d81b69e235f)
This change inlines the logic from readNetworkStatsDetailInternal, and
reduces reundant checks in mUseBpfStats
Bug: 113122541
Test: atest FrameworksNetTests run, passing
Change-Id: If2ef8d8f038f32c8cf974aa02cfc1dc7e44dbad3
Also a few utilities that were in the way, and some opportunistic
cleanups.
Test: FrameworksNetTest NetworkStackTest
Change-Id: I385070e2044fd967cb18f1ffea9a86a4627b742e
This change removes the now-unused VPN arrays in the network stats
observer and recorder classes. These are always null values in every
call site.
Bug: 113122541
Bug: 120145746
Bug: 129264869
Bug: 134244752
Test: FrameworksNetTest passing
Test: Manual tests show data usage fixes maintained.
Change-Id: Ieb8645acc400fdaeb0df7092c5369b96f9f35af9
This change fixes detailed UID stats to ensure network and battery stats
both take VPNs into account. NetworkStatsFactory is being made aware of
VPNs enabled, and the full set of underlying networks present.
Since traffic can only be migrated over a NetworkStats delta, NSF
maintains a NetworkStats snapshot across all UIDs/ifaces/tags.
This snapshot gets updated whenever NSF records a new snapshot
(based on various hooks such as VPN updating its underlying networks,
network getting lost, etc.), or NetworkStatsService's
getDetailedUidStats() method being called.
This change widens the scope of the existing mPersistentSnapshot lock,
renaming it to mPersistentDataLock, and ensures that TUN migrations are
not done in parallel. Additionally, mVpnInfos is updated via
pointer-swapping, to reduce the scope of the mPersistentDataLock.
The safety of this change is predicated on:
1. NetworkStatsFactory lock not held, so services cannot deadlock through
the cyclical lock.
2. The broadening of the scope of the lock in NetworkStatsFactory has no
threading implications, as it is always the last (leaf node) lock held,
and therefore is impossible to have lock inversion.
Additionally, to ensure VPNs work with 464xlat, the VPN info passed to
the NetworkStatsFactory includes all underlying interfaces, instead of
only passing the first one.
This (partially) re-applies changes from:
aosp/972848: Add one more test for VPN usage stats.
aosp/972847: Addressing comments for http://ag/7700679.
aosp/885338: NetworkStatsService: Fix getDetailedUidStats to take VPNs
into account.
Co-developed with: Varun Anand <vaanand@google.com>
Bug: 113122541
Bug: 120145746
Bug: 129264869
Bug: 134244752
Test: FrameworksNetTest passing
Test: Manual tests show data usage fixes maintained.
Change-Id: I6466ec1411fc5ed6954125d27d353b6cd1be719e
This change removes an unused parameter that is always null in
getNetworkStatsUidDetail
Bug: 134244752
Test: FrameworksNetTest passing
Change-Id: I995b108ef30e1fbd6190131ed4db40a3d9327eb5
am: 8249d4ac1e -s ours
am skip reason: change_id Ibdaad3a4cbf0d8ef1ed53cfab1e454b9b878bae9 with SHA1 612ac19261 is in history
Change-Id: I476f1bf69f0cceaeadbe6dbdd93b5dfa096e955a
am: d7ca6e7dc7 -s ours
am skip reason: change_id Ibdaad3a4cbf0d8ef1ed53cfab1e454b9b878bae9 with SHA1 612ac19261 is in history
Change-Id: I48f805c08d46e03a837173f59f411506c9748951
am: 39f9c1c212 -s ours
am skip reason: change_id Ibdaad3a4cbf0d8ef1ed53cfab1e454b9b878bae9 with SHA1 612ac19261 is in history
Change-Id: I47d22d76e3525efc7771e6b514ebadc9b2c75e22
This reverts commit c8dbdf35de.
Reason for revert: This change has been implicated in 4-way deadlocks as seen in b/134244752.
Bug: 134244752
Change-Id: I2f1839d7776a613ca571af8a542755ddc5fc8760
Merged-In: Ibdaad3a4cbf0d8ef1ed53cfab1e454b9b878bae9
This reverts commit 720133f79d.
Reason for revert: This change has been implicated in 4-way deadlocks as seen in b/134244752.
Bug: 134244752
Change-Id: I37f75c2b243ea548a88ef1dae88287405c6ef55f
Merged-In: I0c00e8f0e30cee987b71b561079a97bf09d4dae4
