In rewriteSingle(), catch Throwable to rollback to backup file,
instead of just IOException. Also add dumpAll() to pack up contents
for later debugging, and use it when encountering bad stats.
Bug: 6467868
Change-Id: Ic8e287cf5a235706811a304a88d71d11d3a79cd4
Default is 2MB persist threshold, but even that can be substantial
for devices on 100MB/month plans. This change gradually reduces the
persist threshold up to 8x lower (256kb outstanding) based on lowest
active policy.
Bug: 5382676
Change-Id: Ief4e8cdb169bfb151a3d1b45722a8eaa01926508
Add method to parse new iface_stat_fmt proc stats, or return null
when kernel support is unavailable. Add test and remove older, unused
parsing code. Create new "xt" recorder to persist the new xtables
counters when available.
Add SSID support to NetworkIdentity to fix policy tests.
Bug: 6422414
Change-Id: I77f70e9acb79a559ab626f3af5c4f3599801ed43
Always treat roaming connections as metered, and relax DHCP test to
match any substring for forward compatibility.
Bug: 6382737, 6375399
Change-Id: I9781a60f55fbe35da6f8bfc7a1d609608e8f0951
Since we control system services, we can ensure they are using little
data when data usage is globally restricted. Continue restricting
AID_MEDIA and AID_DRM, since they respond to app requests.
Bug: 6377903, 5772564
Change-Id: I196bf334f903397ea6a67e6802240ee792e47b54
When DHCP lease includes vendor info indicating that remote Wi-Fi
network is metered, advise NetworkPolicy. Users can still manually
change the metered flag in Settings.
Also remove any policies belonging to removed Wi-Fi networks, and
teach isNetworkMetered() about ethernet networks.
Bug: 6344821, 6369307, 6365872
Change-Id: I108606c6fddf2d02828fcab011f3a1501415f1bc
Report to developers if active network is "metered" and define it
as the user being sensitive to heavy data usage.
Bug: 3001465
Change-Id: I855ca3cd3eb1de3c4814148d70ccf24957af898a
Use xt_qtaguid iface_stat_all counters, which are monotonic during
a single boot.
Track all ifaces associated with mobile networks since boot, and
move TrafficStats to using these ifaces. This will include usage of
networks omitted from config_data_usage_network_types, specifically
on devices that recycle network interfaces across APNs.
Split wildcard template matching, and move NetworkStatsService to
use mobile wildcard when logging stats.
Bug: 5324515
Change-Id: I2211c374c05d1b598cc647f2f873630538955ffe
Users outside system_server now explicitly communicate their
lifecycle, which keeps a strong-reference chain to any fully loaded
NetworkStatsCollection histories.
Bug: 6236498
Change-Id: I8e22739b6e89a626b676967a736d7117fd000778
Add networkId field to NetworkIdentity to identify Wi-Fi networks by
SSID. Add support for policies without usage cycles.
Only apply mobile policies when SIM state is ready, which is cleaner
than just checking for airplane mode. Also avoids creating no-op
default policies when subscriberId is null.
Bug: 3001465, 3291052
Change-Id: I1f8aaa49a5db306df022c402ea7f3f5d4bc0cfc7
To support multi-user, store network policy per-appId and expand to
apply rules to all UserInfo on device.
Bug: 6140462
Change-Id: Ic0866b4d41c8c60cc1c0a597f0de927b92b65b1e
Subtype controls (3G-vs-4G) aren't exposed in the UI, so tracking
data with that granularity creates unnecessary overhead. For example,
some GSM networks can regularly flap between two subtypes.
Bug: 6118868
Change-Id: Id098891dba52336d00d0f96632a7924e228b4713
Instead of cycle reset at midnight UTC, use midnight of timezone
active when user last set cycle reset date. Tests to verify, and
also to test leap year behavior.
Bug: 5938567
Change-Id: Ie06f7f0fa242d23110f9586a3f4f7037af87b31b
When changing global restrict background status, send connectivity
change broadcast, since it radically changes DISCONNECTED/BLOCKED
status system-wide.
Also reduce verbose stats logging.
Bug: 5854466
Change-Id: I3b612c520f50cc3000a3a569b7e0ab5f691cc2bd
Introduce second snooze timestamp to support dismissal of data usage
warning notification. Also explicitly set notification "when" to
avoid fighting with other notifications, such as ongoing downloads.
Bug: 5443756, 5262414
Change-Id: I03342c25b0410b1b2db84de9a40884f04cb1d8ae
When NDC delivers limitReached() event, NMS re-arms the alert, which
makes another call back to NDC. If NDC already started processing
another call, this causes deadlock.
Fix this by re-arming on a handler thread.
Bug: 5879848
Change-Id: I46fa78fe1f1122c5f31dd6020483e5ae89a9f39d
Split existing network stats into two separate classes: a recorder
which generates historical data based on periodic counter snapshots,
and a collection of historical data with persistance logic.
Recorder keeps a pending history in memory until outstanding data
crosses a specific threshold. Persisting is handled through a given
FileRotator. This pattern significantly reduces disk churn and
memory overhead. Separate UID data from UID tag data, enabling a
shorter rotation cycle. Migrate existing stats into new structure.
Remove "xt" stats until iptables hooks are ready. Avoid consuming
Entry values when recording into NetworkStatsHistory. Assign
operation counts to default route interface.
Introduce "Rewriter" interface in FileRotator with methods to enable
rewriteAll(). Introduce IndentingPrintWriter to handle indenting in
dump() methods.
Bug: 5386531
Change-Id: Ibe086230a17999a197206ca62d45f266225fdff1
Report non-monotonic NetworkStats through an observer interface
instead of throwing, since those events are still recoverable.
Change-Id: Ic0749f4634b0ac05dbe90e95ca490957ec8b2f23
This separates the definition of "metered network" and "network with
limit." For now, all mobile networks are considered metered.
Bug: 5571454
Change-Id: I394cd385bd33add75e53bfc9cf2fefd06a00208a
Move NTP updates outside locks to avoid blocking ShutdownThread. Add
logging around trim events that remove substantial history. Include
history start in sample events.
Bug: 5627247, 5584564
Change-Id: If9bbd93842c710efcdec94e68da87e9e42a5f961
Instead of trusting NTP time alone, use the most-conservative of
system clock and NTP.
Bug: 5584564
Change-Id: I5dd87fc009959b1cf0a7d660e385a0b1a8be238b
When encountering non-monotonic stats rows, recover remaining data by
clamping to 0. In particular, this avoids edge-case where persisting
threshold checks would never trigger. Also recover when tethering
snapshots are missing.
Bug: 5600785, 5433871, 5600678
Change-Id: I1871954ce3955cc4ac8846f9841bae0066176ffe
