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
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
Still possible for netd to get wedged but system won't die because of it.
Leads the way to having forking netd - then only individual commands would
wedge, promoting stability.
bug:5864209
bug:6019952
Change-Id: I43e4c5072863b8b812d4fe24d30d92eb1a11651a
Need changes in core.
Still possible for netd to get wedged but system won't die because of it.
Leads the way to having forking netd - then only individual commands would
wedge, promoting stability.
bug:5864209
Change-Id: Ifcd37511c8239fe3df7e9070869b63a9c5649bd2
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
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
Create a LocalLog class for logging within a service for dumping in dumps.
Use it in the NativeDaemonConnector so we can get some insight into what
is happening in these lockups.
bug:5864209
Change-Id: I68ddc58847f3c8de613be9528570f8c3157d8274
Report non-monotonic NetworkStats through an observer interface
instead of throwing, since those events are still recoverable.
Change-Id: Ic0749f4634b0ac05dbe90e95ca490957ec8b2f23
Uses argument escaping inside NativeDaemonConnector, using varargs
to separate boundaries. Also introduces Command object to help build
argument lists.
Bug: 5472606
Change-Id: I357979fc19bb0171a056e690064e01b5a7119501
Perform uniform argument escaping inside NativeDaemonConnector, using
varargs to separate boundaries. Also move to parsed NativeDaemonEvent
instances instead of raw Strings.
Bug: 5472606
Change-Id: I1270733e2b2eeb2f6b810240df82ab24d38ebf40
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
Moved away from BufferedReader, which only reads the first 8KB of
some proc files because it aggresively fills its buffer. Optimized
proc parsing, now double the speed. Tests to cover.
Log when NetworkStats counters roll backwards when subtracting, and
optimizations around findIndex(). When system removes UID, also
remove from last stats snapshot to avoid xt counters from rolling
backwards.
Bug: 5472949, 5458380
Change-Id: I07c08fe5233156fac2b84450f6291868bf9bfaf2
Offer parameters to pick out specific list of packages, and to change
duration and total data.
Bug: 5416742
Change-Id: I6970a5e76f3198ef23a400c079037212b000ca6b
Begin tracking xtables summary of data usage to compare with values
reported from /proc/net/dev. Roll tethering directly into UID stats
to trigger UID stats persisting when crossing threshold.
Include xtables summary and authoritative time in samples.
Bug: 5373561, 5397882, 5381980
Change-Id: Ib7945522caadfbe0864fdf391582dc820f4f371e
Watch for changes to telephony network subtype, and update iface
mapping to persist stats under correct type. Update network stats
before removing tethering NAT rules.
Skip recording that would create empty historical buckets. Query UID
stats before iface stats to always skew positive when counters are
actively rolling forward.
Bug: 5360042, 5359860, 5335674, 5334448
Change-Id: I8aa37b568e8ffb70647218aa1aff5195d3e44d5a
When sampling network stats, always use atomic buckets instead of
interpolating. Always poll iface and UID together so we distribute
into buckets equally. Move stale bucket trimming to just before
writing stats.
Bug: 5321340
Change-Id: I78a2226778a79c875f3668336e39ea24a7b4d5c4
Use new "gettetherstats" netd command to retrieve statistics for
active tethering connections. Keep tethering poll events separate
from UID poll, even though they end up same historical structures.
Bug: 5244846
Change-Id: Ia0c5165f6712c12b51586f86c331a2aad4ad6afb
Devices currently delay collecting UID stats during common operations
like global alerts to reduce parsing load. Here we introduce a flag
to always collect UID and iface stats together to aid debugging.
Bug: 5321340
Change-Id: Ia8e1daf1a6f9d5f5cf1f64a04b6b6766ee965ab6
When ifaces change, poll UID stats without persisting, since they
depend on knowing active iface to store correctly. Log dropped UID
stats when iface is unknown. Switch to using flags when calling
performPoll().
Enforce that "idx" values are consistent from xt_qtaguid. Transition
to using Log.wtf() for important checks, mostly around file I/O,
kernel stats parsing, and kernel module control. Increase stats
persist threshold to 2MB to reduce churn.
Bug: 5269476, 5270106
Change-Id: I721215bfb65127f95775c71cf135e907cd567e92
New broadcast that is dispatched immediately after connectivity
changes have been handled by ConnectivityService, bypassing any
applicable CONNECTIVITY_CHANGE_DELAY.
Also protect CONNECTIVITY_CHANGE broadcasts, since they should only
be sent by system.
Bug: 5198167
Change-Id: I75f1fb44b21da1879f0ab960bcaa481126d70fde
When reading network counters, always splice in xt_qtaguid values
to avoid counting backwards. Test to verify.
Remove verbose logging around global alerts, and add dumpsys debug
info for NMS and MDST. Also fix subtle bug around stats persisting
and dumping.
Bug: 5212893, 5211028
Change-Id: I783e5286637a67ee2dd2b09878198711a926d0cb
