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
When an app is restricted in the background, don't allow them to
start using metered network features. With this change they can
still use network features when in foreground. This avoids situation
where apps can bring up APNs which they are unable to use.
Bug: 5838267
Change-Id: I3ac96f2a545f67cba1ef12b8536cfd0da769d955
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
We often get told a network has gone away after the interface is downed
and the routes are auto-removed. Change the log to VDBUG so standard
builds don't have the noise.
bug:2856577
Change-Id: If12ec3ed3b646ff6ef89b3778d037cfc478c0d25
Also allow isActiveNetworkMetered() to inspect networks without
requiring ACCESS_WIFI_STATE.
Bug: 3001465
Change-Id: Ibc23577d4ad941e4f93db417be6b046881dcbfb1
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
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
writePidDns() does not increase the index in case first given dns
already exist in the property.
Change-Id: I1129d0042929b3ee119160e53cae0e4143c7ea88
Signed-off-by: yoonsung.nam <yoonsung.nam@samsung.com>
When Wi-fi connects at L2 layer, the beacons reach and the device
can maintain a connection to the access point, but the application
connectivity can be flaky (due to bigger packet size exchange).
We now use Watchdog to monitor the quality of the last hop on
Wi-Fi using signal strength and ARP connectivity as indicators
to decide if the link is good enough to switch to Wi-Fi as the uplink.
ARP pings are useful for link validation but can still get through
when the application traffic fails to go through and thus not best indicator
real packet loss since they are tiny packets (28 bytes) and have
much low chance of packet corruption than the regular data
packets.
Signal strength and ARP used together ends up working well in tests.
The goal is to switch to Wi-Fi after validating ARP transfer
and RSSI and then switching out of Wi-Fi when we hit a low
signal strength threshold and waiting until the signal strength
improves and validating ARP transfer.
Change-Id: Ica593291ec7772da892f03cf45b649635b730c47
Backported from master, including a bug fix and a cdma enhancement.
Even if other people are sharing the connection (ie, carrier wants
default and tethered traffic on the same APN) stop using a carrier-
described APN when the tethering stops.
bug:5972599
Change-Id: I25e4831855e6b62c0c3ab3a6f4d4846aaee6ac50
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 ConnectivityService#startUsingNetworkFeature is called and the
special network is not available output some additional information.
Change-Id: I34b226a208596fa6418f1f37a0feec1d274d493c
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
