This patch relays the NetworkBaseObserver notifications about nat
464xlat stacked interfaces onto the ConnectivityService handler.
This allows to process interface up and down notifications in the
same thread context and eliminates several races:
- NPE risk due to race between fixupLinkProperties called on
ConnectivityService thread and interfaceRemoved called on
NetworkManagementService thread.
- stale LinkProperties pointer reads in both NetworkBaseObserver
callbacks not called on ConnectivityService handler.
- removes the race between stop() and interfaceRemoved().
- removes superfluous LinkProperties notifications when stop() is
called before the stacked interface goes up.
The teardown procedure logic common to stop() and interfaceRemoved() is
put into enterStoppedState() and enterIdleState().
This allows to distinguish and correctly handle the following teardown
scenarios:
- an IPv4 appears -> ConnectivityService calls Nat464Xlat#stop()
-> Nat464Xlat calls stopClatd
-> clatd stops
-> if the stacked interface was up, it is removed
-> Nat464Xlat#interfaceRemoved() is triggered and
a LinkProperties update is sent.
- network disconnects -> ConnectivityService calls Nat464Xlat#stop()
-> Nat464Xlat calls stopClatd
-> clatd stops
-> if the stacked interface was up, it is removed
-> Nat464Xlat#interfaceRemoved() is triggered and
a LinkProperties update is sent.
- clatd crashes or exit -> Nat464Xlat#interfaceRemoved() is triggered
-> Nat464Xlat unregisters itself as a network
observer
-> ConnectivityService is updated about the
stacked interface missing, and restarts
Nat464Xlat if needed.
Note that the first two scenarios have two cases: stop() can be called
before the notification for the stacked interface going up (STARTED), or
after (RUNNING). In the first case, Nat464Xlat must unregister
immediately as a network observer to avoid leaks.
This patch also:
- removes/simplifies comments related to the threading model which
are no obsolete.
- extract clatd management logic from ConnectivityService into
NetworkAgentInfo
- add new unit tests where there was none before.
Bug: 62918393
Bug: 62997041
Bug: 64571917
Bug: 65225023
Test: runtest frameworks-net
Change-Id: I27221a8a60fd9760b567ed322cc79228df877e56
Fixes:
frameworks/base/tests/net/java/com/android/server/connectivity/tethering/OffloadControllerTest.java:149: error: [JUnit4TestNotRun] Test method will not be run; please add @Test annotation
public void testNoSettingsValueDefaultDisabledDoesNotStart() throws Exception {
^
(see http://errorprone.info/bugpattern/JUnit4TestNotRun)
Did you mean '@Test'?
frameworks/base/tests/net/java/com/android/server/connectivity/tethering/OffloadControllerTest.java:170: error: [JUnit4TestNotRun] Test method will not be run; please add @Test annotation
public void testNoSettingsValueDefaultEnabledDoesStart() throws Exception {
^
(see http://errorprone.info/bugpattern/JUnit4TestNotRun)
Did you mean '@Test'?
Bug: 64489631
Test: m -j RUN_ERROR_PRONE=true javac-check
Merged-In: Ib32489d07778465134bca52c589baddbd78ab129
Change-Id: I41dfdf87529e532df385617fa05c7006a7a14c86
Currently, if setting a data limit fails, we completely stop
offload in order to avoid data overages. However, the next thing
we do is try to fetch the stats and crash, because once offload
is stopped all our local state is cleared.
Fix this by fetching stats before we stop offload.
Bug: 29337859
Bug: 32163131
Bug: 64867836
Test: OffloadControllerTest passes
Test: no crash when disabling wifi tethering with BT tethering active
Merged-In: I7fc47e60b2da5f39c26fb22c1325618f9948dd38
Merged-In: I464dd2a6d1996b1cfb8bbf82b6ee453fd0747569
Change-Id: I260f5450f8b67f055983af68fb23a5f3cfc0bc69
(cherry picked from commit d743601a00)
This patch removes the call to runWithScissors() in
OffloadController#getTetherStats() that was causing a deadlock when
NetworkStatsService would be polled for stats in certain threading
contexts.
Instead of trying to query the tethering offload HAL synchronously all
the time, this patch:
- changes getTetherStats() to only call into the offload HAL when it
detects that it is called on the same thread as the Tethering handler
thread.
- changes the map of interface to accumulated tethering forwarded stats
to be concurrent.
This makes stats reading from getTetherStats() eventually consistent.
From the point of view of getTetherStats(), it preserves the guarantees
that tethering stats are monotonically increasing, and also guarantees
no tearing between rx bytes and tx bytes.
Bug: 29337859
Bug: 32163131
Bug: 64771555
Test: runtest frameworks-net
Merged-In: Ibcd351ad0225ef146b00a807833f76d2a886f6c1
Merged-In: I61786d61fe1422e429c0dd9eadaff6f02eb850e7
Merged-In: I999d1d1bf72e7ab02c5d17f37aad00bc711d3fc5
(cherry pick from commit eb5e465edd)
Change-Id: I28646b962cee8c8a6efd66059f84873c02ac5810
1. Mock the service manager so that NMS can fetch mock versions
of INetd and IBatteryStats.
2. Call LocalServices.removeServiceForTest to avoid a duplicate
service registration error. // check this
3. Change the timeout from 100ms to 200ms, as otherwise the tests
that check for IfaceClass fail.
4. Convert NetworkManagementServiceTest to JUnit 4.
5. Move NetworkManagementServiceTest to tests/net
Bug: 29337859
Bug: 32163131
Bug: 32561414
Bug: 62918393
Test: runtest frameworks-net
Change-Id: Ic7371b427b35809ccd446addf35c9d8ae99ccfd3
Currently, we only count add tethering traffic to per-UID
stats, but not to total data usage (i.e., dev and XT stats). This
is correct for software tethering, because all software forwarded
packets are already included in interface counters, but it is
incorrect for hardware offload, because such packets do not
increment interface counters.
To fix this:
1. Add an argument to ITetheringStatsProvider#getTetherStats to
indicate whether per-UID stats are requested. For clarity,
define integer constants STATS_PER_IFACE and STATS_PER_UID
to represent these operations.
2. Make NetdTetheringStatsProvider return stats only if per-UID
stats are requested. (Otherwise tethering traffic would be
double-counted).
3. Make OffloadController's stats provider return the same
stats regardless of whether per-UID stats were requested or
not.
4. Make NetworkStatsService add non-per-UID tethering stats to
the dev and XT snapshots. The per-UID snapshots were already
correctly adding in per-UID stats.
(cherry picked from commit 5356a35c3b)
Bug: 29337859
Bug: 32163131
Test: runtest frameworks-net
Test: runtest frameworks-telephony
Change-Id: I325b13d50e88841dfb0db4c35e7e27f163ee72fe
Merged-In: I4e8e923d68dce1a4a68608dbd6c75a91165aa4ee
Add a new tetherLimitReached method to INetworkManagementService,
and call it when the HAL notifies OffloadController because the
limit has been reached.
Bug: 29337859
Bug: 32163131
Test: builds
Test: OffloadControllerTest passes
(cherry picked from commit d66cf56ba6)
Change-Id: I89719fe7ec8bfd3c85d6cdca9c0d449aea86ef9d
Merged-In: I026e6aa9e7b371f316c0d97c3cf5e78abc1f5263
Added UserRestrinctionListener for turning the service off one the
DISALLOW_CONFIG_TETHERING is on into Tethering. Added notification
about
tethering being turned off. Also added Unit Tests to test the
functionality
of the UserRestrictionListener added.
Bug: 27936525
Test: Turn the tehering service on (either wifi, usb or bluetooth).
Automatically the system should send a notification about the service
being active.Close settings from recents. From TestDPC User Restrictions
switch on DISALLOW_CONFIG_TETHERING. The tethering should be turned off
and a notification should appear informing that the service is inactive.
Merged-In: Ib7ea8885cedc2a842ebd4487c8b366a6666996bc
Change-Id: Ib7ea8885cedc2a842ebd4487c8b366a6666996bc
(cherry picked from commit fa6d5c5ca0)
This patch corrects a regression added by commit fb2609d3ee that did
not take into account the case of multiple notifications shown for a
single network id. Given how network notifications are triggered, it can
happen that NO_INTERNET and SIGN_IN notifications are both triggered for
the same network when captive portal detection is slow.
Contrary to the situation before commit fb2609d3ee, a notification
priority order is introduced so that SIGN_IN always overrides
NO_INTERNET, and NO_INTERNET is ignored if SIGN_IN is already present.
Bug: 63676954
Bug: 62503737
Test: runtest frameworks-net, added new unit tests
Change-Id: Ib8658601e8d4dc6c41b335ab7dd8caa0cccd9531
This patch fixes a couple of flakyness issues with
testNetworkInfoOfTypeNone. It also fixes some typos and naming issues.
Bug: 62918393, 62918393
Test: runtest frameworks-net
Change-Id: I1c56557ab113d3ef57dbc06a6e882634d03c5b09
Added UserRestrinctionListener for turning the service off one the
DISALLOW_CONFIG_TETHERING is on into Tethering. Added notification about
tethering being turned off. Also added Unit Tests to test the functionality
of the UserRestrictionListener added.
Bug: 27936525
Merged-In: Ib7ea8885cedc2a842ebd4487c8b366a6666996bc
Test: Turn the tehering service on (either wifi, usb or bluetooth).
Automatically the system should send a notification about the service
being active.Close settings from recents. From TestDPC User Restrictions
switch on DISALLOW_CONFIG_TETHERING. The tethering should be turned off
and a notification should appear informing that the service is inactive.
Change-Id: Ib7ea8885cedc2a842ebd4487c8b366a6666996bc
Make tethering offload register an ITetheringStatsProvider and
fetch tethering stats from the hardware.
Currently we fetch stats in the following cases:
1. Just after changing upstreams, we fetch stats from the
previous upstream.
2. When we are polled by NetworkStatsService.
(cherry-picked from commit 5a7dea1a8e)
Bug: 29337859
Bug: 32163131
Test: builds, boots
Test: stats appear in tethering logs
Change-Id: If744f2e06cb6a3095a40199936b9afb76eff7b56
Merged-In: If744f2e06cb6a3095a40199936b9afb76eff7b56
This restructures the fetching of the default disposition such
that we disable (and enable) the feature with only a single
character change.
Additionally: fix unittests with proper use of FakeSettingsProvider.
Test: as follows
- built
- flashed
- booted
- "runtest frameworks-net" passed with developer enabled and disabled
Bug: 29337859
Bug: 32163131
Bug: 63250751
(cherry picked from commit c87cd41184)
Merged-In: Ib32489d07778465134bca52c589baddbd78ab129
Merged-In: I03d68b0da192fbd6172639343d4ab88c20127ad7
Merged-In: I10c0af2b2c4f6b6e613380e637cc3acb1f7a55a3
Change-Id: Ie16a022be8dacd76b0402bcb777680c36163a084
This patch allows to use TYPE_NONE for the legacy network type variable
of NetworkInfo. This usage is "safe" with respect to legacy APIs using
network types as most of them already returns null or do nothing for
TYPE_NONE.
Of the existing APIs in ConnectivityManager that accept a network type
argument, those which were already returning null or doing nothing for
TYPE_NONE are:
getNetworkInfo(int)
getNetworkForType(int)
stopUsingNetworkFeature(int, String)
networkCapabilitiesForType(int)
requestRouteToHostAddress(int, InetAddress)
reportInetCondition(int, int)
isNetworkSupported(int)
getLinkProperties(int)
Only setProvisioningNotificationVisible needs an additional guard
against TYPE_NONE.
Bug: 30088447
Bug: 62844794
Test: runtest frameworks-net
Change-Id: I112596fcd03d3c2cd42a2a84d265adb38e3944bb
ConnectivityServiceTest was still using sleep() in a few places although
these were unnecessary:
- in testSatisfiedThenLostNetworkRequestDoesNotTriggerOnAvailable(),
expectNoCallback() and expectAvailableCallback() already include
waitForIdleHandler calls that drain the message queues and make
sleep no-ops.
- in testTimedoutAfterUnregisterdNetworkRequest, the sleeps were
introduced before unregisterNetworkCallback was changed to have a
synchronous effect for callback unregistration, therefore the sleep
becomes simply non-sensical. To reflect this the name of the method
is also changed.
Bug: 62918393
Test: runtest frameworks-net
Change-Id: I7b701ecf5846a5e1890e86107b8d2544b419ce44
Test: as follows
- built
- flashed
- booted
- "runtest frameworks-net" passes
- USB tethering on and off works as expected
Bug: 32163131
Bug: 36216864
Bug: 62147658
Bug: 62552150
Merged-In: I3ae731c21f292a476a9e30e229d66ef6ab4a0545
Merged-In: I717fdd269b012f32548ebe0603999ae403b03100
Merged-Id: Ia8f7f3616f1358b0427386ce8aff26899e03ac07
Change-Id: Ia8f7f3616f1358b0427386ce8aff26899e03ac07
(cherry picked from commit c438e306cc)
ConnectivityServiceTest was still using sleep() in a few places although
these were unnecessary:
- in testSatisfiedThenLostNetworkRequestDoesNotTriggerOnAvailable(),
expectNoCallback() and expectAvailableCallback() already include
waitForIdleHandler calls that drain the message queues and make
sleep no-ops.
- in testTimedoutAfterUnregisterdNetworkRequest, the sleeps were
introduced before unregisterNetworkCallback was changed to have a
synchronous effect for callback unregistration, therefore the sleep
becomes simply non-sensical. To reflect this the name of the method
is also changed.
Bug: 62918393
Test: runtest frameworks-net
Change-Id: I78426665670f702304212753f417b3d5a8a2c107
