Commit Graph

469 Commits

Author SHA1 Message Date
satayev
0e9334cb80 Revert "[VCN01] Add NOT_VCN_MANAGED capability"
This reverts commit 85e0ad7986.

Reason for revert: b/177411288 broken test

Bug: 177411288
Bug: 175662146
Change-Id: I02a25b83e62ab9a2ed22a98530d62b08de73f56e
2021-01-13 15:04:23 +00:00
junyulai
85e0ad7986 [VCN01] Add NOT_VCN_MANAGED capability
Add new capability to indicate whether a network is
managed by Virtual Carrier Network (VCN). This is needed
to identify networks between VCN managed network and
others. And this capability will be:
  1. mutable
  2. requestable
  3. set by default for network agents and requests
  4. allowed for test networks

Test: 1. atest FrameworksNetTests CtsNetTestCases
      2. adb shell dumpsys connectivity
      3. atest ConnectivityServiceTest#testLoseMutableAndRequestableCaps
Bug: 175662146

Change-Id: Ia5eeb3912a687164fa95d7ba5516fd73abca79ba
2021-01-13 11:05:40 +08:00
Hai Shalom
88baf235a9 Merge "Support for Venue URL and friendly name from Network agent" 2021-01-13 01:54:05 +00:00
Lorenzo Colitti
bbd9fb5c27 Merge changes I3eb82680,I9d6147d9
* changes:
  NetworkWatchlistServiceTests: update IIpConnectivityMetrics.
  Stop using IIpConnectivityMetrics in ConnectivityService.
2021-01-13 00:31:56 +00:00
Ken Chen
b2d17e81cc Let ConnectivityService control the socket closure
Netd currently calls maybeCloseSockets before adding/removing users for
network. The task should be moved from netd to CS. In this way, we can
handle WiFi lingering more easily in the future.

Test: atest HostsideVpnTests
Test: atest FrameworksNetTests
Change-Id: Icf8125e8552c89da367a67f48611ed193a1a343d
2021-01-12 23:50:28 +08:00
Lorenzo Colitti
682686bdff Stop using IIpConnectivityMetrics in ConnectivityService.
Currently, ConnectivityService calls the IpConnectivityMetrics
service class directly to log default network events. This is
incompatible with ConnectivityService being in a mainline module.
Replace direct access to IIpConnectivityMetrics with public
methods in IpConnectivityLog, which is @SystemApi class.

The new methods are not yet @SystemApi, but they can be made so
if desired. Alternatively, these metrics could be deleted.

Also remove the IpConectivityMetrics service from the
service-connectivity JAR, and go back to starting it from
SystemServer.java, which is what was happening a few hours ago
before aosp/1542626 was merged.

Test: builds, boots
Test: atest FrameworksNetTests
Test: "dumpsys connmetrics" shows events, including default network events
Change-Id: I9d6147d93590363a2f8f83f39f05c03d001b4851
2021-01-12 23:19:49 +09:00
Lorenzo Colitti
2982364969 Merge "Remove Vpn#isBlockingUid." 2021-01-12 10:20:33 +00:00
Treehugger Robot
e8cd6e4fef Merge "Improve error message when testing network factory" 2021-01-12 03:50:30 +00:00
Hai Shalom
ef5f5b1ea7 Support for Venue URL and friendly name from Network agent
Extend CaptivePortalData with a member to hold the venue friendly
name. If CaptivePortalData is initialized by both the network
agent and Capport, merge the two objects to include the venue
friendly name and prioritize the venue URL from the network
agent.

Bug: 162783305
Test: atest ConnectivityServiceTest
Test: atest CtsNetTestCasesLatestSdk:CaptivePortalDataTest
Test: End-to-end test
Change-Id: I4fdf356be42237c5b6c0ae5bacfd3cec4726861b
2021-01-11 18:45:34 -08:00
Lorenzo Colitti
2d3e8c7a10 Remove Vpn#isBlockingUid.
This code is no longer used. Delete it and the tests for it.

One of the tests checks that when a restricted profile is added,
the lockdown UID rules are updated to cover that profile as well.
ConnectivityServiceTest does not currently has coverage for this,
so add it.

Bug: 173331190
Test: moved unit test from VpnTest to ConnectivityServiceTest
Change-Id: Ic350b90946870890bf031668bb5c201037b0bd15
2021-01-08 15:35:55 +09:00
Lorenzo Colitti
282ed251ce Inform ConnectivityService about always-on VPN lockdown.
Currently, when an always-on VPN is set in lockdown mode, Vpn
configures prohibit UID rules in netd directly and does not
inform ConnectivityService of the fact.

This means that ConnectivityService cannot send NetworkCallbacks
that tells apps that they are blocked or unblocked. It also means
that ConnectivityService has to take the mVpns lock and call into
Vpn to allow synchronous APIs such as getActiveNetwork to return
BLOCKED if the app is blocked.

Move all this to ConnectivityService:
- Add a setRequireVpnForUids API to ConnectivityManager, and have
  that pass the routing rules to netd.
- Update VpnTest to expect calls to ConnectivityManager instead
  of to netd.
- Whenever setRequireVpnForUids is called, ensure that
  ConnectivityService sends onBlockedStatusChanged to the
  affected callbacks.
- Update existing unit tests to check for callbacks.
- Add a way to find the VPN that applies to a given UID without
  taking the VPN lock, by instead scanning all connected VPNs.
  Use this as a replacement for direct access to mVpns.

For simplicity, and in order to ensure proper ordering between
the NetworkCallbacks sent for VPNs connecting and disconnecting,
process blocked UID ranges on the handler thread. This means that
when setRequireVpnForUids returns, the rule changes might not
have been applied. This shouldn't impact apps using network
connectivity, but it might mean that apps setting an always-on
package, and then immediately checking whether networking is
blocked, will see a behaviour change.

Bug: 173331190
Fix: 175670887
Test: new test coverage in ConnectivityServiceTest
Test: atest MixedDeviceOwnerTest#testAlwaysOnVpn \
            MixedDeviceOwnerTest#testAlwaysOnVpnLockDown \
	    MixedDeviceOwnerTest#testAlwaysOnVpnAcrossReboot \
	    MixedDeviceOwnerTest#testAlwaysOnVpnPackageUninstalled \
	    MixedDeviceOwnerTest#testAlwaysOnVpnUnsupportedPackage \
	    MixedDeviceOwnerTest#testAlwaysOnVpnUnsupportedPackageReplaced \
	    MixedDeviceOwnerTest#testAlwaysOnVpnPackageLogged \
            MixedProfileOwnerTest#testAlwaysOnVpn \
            MixedProfileOwnerTest#testAlwaysOnVpnLockDown \
	    MixedProfileOwnerTest#testAlwaysOnVpnAcrossReboot \
	    MixedProfileOwnerTest#testAlwaysOnVpnPackageUninstalled \
	    MixedProfileOwnerTest#testAlwaysOnVpnUnsupportedPackage \
	    MixedProfileOwnerTest#testAlwaysOnVpnUnsupportedPackageReplaced \
	    MixedProfileOwnerTest#testAlwaysOnVpnPackageLogged \
            MixedManagedProfileOwnerTest#testAlwaysOnVpn \
            MixedManagedProfileOwnerTest#testAlwaysOnVpnLockDown \
	    MixedManagedProfileOwnerTest#testAlwaysOnVpnAcrossReboot \
	    MixedManagedProfileOwnerTest#testAlwaysOnVpnPackageUninstalled \
	    MixedManagedProfileOwnerTest#testAlwaysOnVpnUnsupportedPackage \
	    MixedManagedProfileOwnerTest#testAlwaysOnVpnUnsupportedPackageReplaced \
	    MixedManagedProfileOwnerTest#testAlwaysOnVpnPackageLogged
Test: atest FrameworksNetTests HostsideVpnTests \
            CtsNetTestCases:VpnServiceTest \
	    CtsNetTestCases:Ikev2VpnTest
Change-Id: Iaca8a7cc343aef52706cff62a7735f338cb1b772
2021-01-07 17:44:29 +09:00
Paul Hu
8918df04a5 Merge "Replace INetworkPolicyManager to NetworkPolicyManager" 2021-01-07 02:08:58 +00:00
Lorenzo Colitti
91348d9f22 Merge "Migrate away from AsyncChannel in NetworkAgent" 2021-01-06 14:10:21 +00:00
junyulai
77bdad8d59 Improve error message when testing network factory
Currently, when network factory is under testing, but failed
without terminating the network factory. The mocked network
factory will stay registered and trigger another assertion
fail in teardown(). Thus, the test suite will only shows
the callstack that generated in teardown() instead of the
original fail. The error message is misleading and not useful
at all.

Thus, safely terminate and quit mocked network factory after
testing to prevent assertion fail in teardown().

Test: atest ConnectivityServiceTest#testMobileDataAlwaysOn
Bug: 175180558
Change-Id: I0f96332cc05221e576bd792c6cd26d9dccb4e228
2021-01-06 17:26:09 +08:00
paulhu
53c4fc75a5 Replace INetworkPolicyManager to NetworkPolicyManager
Connectivity service is going to become a mainline module which
will not able to access hidden APIs. Thus, use formal API
Context#getSystemService() to get network policy service instead
of hidden API ServiceManager#getService().

Bug: 170598012
Test: atest FrameworksNetTests FrameworksNetIntegrationTests
Change-Id: I4f286264b5800b2b922f85a76ddd20d64d53000a
2021-01-05 17:47:25 +08:00
Remi NGUYEN VAN
92f546d4bd Migrate away from AsyncChannel in NetworkAgent
Use two oneway binder interfaces instead.
The interfaces post messages to handlers as was implemented before, but
provide a more strictly defined interface, with less hops between
NetworkAgent, AsyncChannel, and ConnectivityService.

The actual public interface is the NetworkAgent @SystemApi: the binder
interface is an internal implementation detail.

Test: atest FrameworksNetTests CtsNetTestCasesLatestSdk
Bug: 173574274
Merged-In: Ie364ab50f416e7821e70f4539a881eea828e1256

Change-Id: Ie364ab50f416e7821e70f4539a881eea828e1256
2020-12-25 03:54:19 +00:00
Aaron Huang
120dfbbec5 Have NetworkPolicyManagerService create MultipathPolicyTracker
To make connectivity service mainline, this patch makes
MultipathPolicyTracker as a submodule of NetworkPolicyManagerService
to remove the dependencies of ConnectivityService.

Bug: 175015282
Test: FrameworksNetTests
Change-Id: I82a7c62069ffd0683deb2f5ce2f99de120a2a16f
2020-12-23 23:17:15 +08:00
James Mattis
87eadad550 Merge changes I177ec607,I68f364b4,Ib3b9f52c,If040d61e
* changes:
  nits removing extra space, change method name, etc
  maybeLogBlockedStatusChanged multilayer requests
  Update getSignalStrengthThresholds for multilayer
  Update to unneeded for multilayered requests
2020-12-20 18:31:36 +00:00
Lorenzo Colitti
de7f7447d5 Allow ConnectivityServiceTest to change the calling UID.
Allow ConnectivityServiceTest to change the UID by replacing
static calls to Binder.getCallingUid() with a method that can
be mocked.

Add registerNetworkCallbackAsUid as an initial way to exercise
this, and add some test coverage to the always-on lockdown test
to confirm that things are working as expected.

Bug: 173331190
Test: new unit tests
Change-Id: Ie0b32460e20e5906a0f479191e11a062f21cc608
2020-12-15 21:10:36 +09:00
Lorenzo Colitti
42a97894cd Add a test for getDefaultNetworkCapabilitiesForUser.
Bug: 173331190
Test: test-only change
Test: new test passes 100 times in a row
Change-Id: I210284578e38cd25b8b95235d3390d5bd66a5a70
2020-12-15 21:08:21 +09:00
Lorenzo Colitti
4d3a0c2435 Add tests for always-on VPN lockdown mode.
This requires mocking lots of new things that weren't mocked
before but is otherwise fairly straightforward.

A few changes to MockVpn are needed as well:

1. Set the VPN's NetworkInfo to CONNECTED, so methods such as
   isBlockingUid will work. While I'm at it, set the interface on
   the LinkProperties as well to make things a bit more
   realistic.

2. Constructs the VpnConfig when registering the agent, not when
   the MockVpn is created. This is needed because starting and
   stopping lockdown VPN calls prepare, which nulls out mConfig.
   But constructing the VpnConfig when registering the agent is
   more realistic anyway. The production code does that in
   establish, but we can't do that in ConnectivityServiceTest
   because some of the test cases don't call establish and call
   registerAgent directly.

Bug: 173331190
Test: atest FrameworksNetTests
Change-Id: I827543751dbf5e626a24ec02cd6f50b423f5f761
2020-12-15 21:08:20 +09:00
Lorenzo Colitti
72c26b883f Merge "Generalize support for underlying networks." 2020-12-14 05:19:49 +00:00
Treehugger Robot
0fc25a8693 Merge "Fix a crash in eng builds" 2020-12-14 05:17:15 +00:00
Chiachang Wang
c3806f72b7 Merge "Resolve UidRange dependency between NMS and CS module" 2020-12-14 02:55:41 +00:00
Chalard Jean
fb0ff9bbcf Fix a crash in eng builds
CAPTIVE_PORTAL is a CS-managed capability, and causes CS to log a wtf.
When this test is run on an eng build, this sends SIGSEGV to the test,
which is pretty difficult to debug.

Test: FrameworksNetTests NetworkStackTests
Change-Id: I72fc46a6daa4e886425b4dc967318cca9f1a5302
2020-12-13 23:02:08 +09:00
Lorenzo Colitti
6c01b8ebf7 Generalize support for underlying networks.
Currently, ConnectivityService assumes that only VPNs can have
underlying networks. Make the code decide this based only on the
return value of NetworkAgentInfo#supportsUnderlyingNetworks.
This allows non-VPN network types to support underlying networks
in the future.

This requires storing the original agent's capabilities in
NetworkAgentInfo so that applyUnderlyingCapabilities can mix in
the underlying network capabilities without overwriting the
capabilities of the network itself. Currently, the only
information that applyUnderlyingCapabilities takes from the
original agent's capabilities are the metered bit (stored in
NetworkAgentInfo#declaredMetered) and the transports (assumed to
be exactly {TRANSPORT_VPN}. Store the full capabilities instead.
This is more state than needed but it ensures that we do not need
to make any changes if in the future we want to propagate new
types of information from the underlying networks.

This should have no impact on current use cases (i.e., VPNs).

There is a change in ordering: in disconnectAndDestroyNetwork,
the new code propagates underlying network capabilities before
removing the network from LegacyTypeTracker, instead of after.

This is done to simplify the new code. When the new code
propagates underlying network capabilities in response to a
change for a particular network (e.g., connect, disconnect,
capabilities change), it only considers networks that have the
changed network as underlying. Because determining the
underlying networks requires knowing the default network,
the new code runs before the default network is changed and
LegacyTypeTracker is updated.

This shouldn't have app implications because the connectivity
broadcasts sent by LegacyTypeTracker and the callbacks cannot be
ordered, since they run on separate threads with unpredictable
delays. The capability change callbacks resulting from
propagation of underlying network capabilities were already
sent before the rematch, so the callbacks themselves are not
reordered in any way.

Bug: 173331190
Test: atest FrameworksNetTests \
            CtsNetTestCases:NetworkAgentTest \
	    CtsNetTestCases:Ikev2VpnTest \
	    CtsNetTestCases:VpnServiceTest \
	    CtsNetTestCases:android.net.cts.ConnectivityDiagnosticsManagerTest \
	    HostsideVpnTests com.android.server.connectivity.VpnTest
Change-Id: Ic5353a928a3a3541dcf953c35f47277c5e295db8
2020-12-13 00:10:56 +09:00
Chalard Jean
362fc1ca1f Merge changes from topic "remove_legacy_NA"
* changes:
  Remove support for legacy network agents
  Remove deprecated constructors for NetworkAgent
  Migrate NetworkAgentWrapper to the new NA API
  Cleanup TestNetworkService
2020-12-11 02:32:57 +00:00
James Mattis
62c20a51cf nits removing extra space, change method name, etc
Minor cleanup as per nit comments on approved CLs in the relation chain.

Namely:
- removing an extranous space
- changing requestsSortedById() to be package private
- changing releaseNetworkRequest() name to releaseNetworkRequests()
- adding final in a couple spots
- added some test requests in testDumpDoesNotCrash()

Bug: 173145245
Bug: 173292541
Bug: 173146509
Bug: 171991028
Test: atest FrameworksNetTests
Change-Id: I177ec6072a44acd247022b65b56e90cc231094b9
2020-12-10 10:01:52 -08:00
Treehugger Robot
e80c5b3335 Merge "Add a mutability flag to the PendingIntent" 2020-12-10 16:27:58 +00:00
Chiachang Wang
c92383fd6d Resolve UidRange dependency between NMS and CS module
ConnectivityService is going to become a mainline module which
cannot access hidden APIs. Thus, replace the VPN uid range
controlling APIs from NMS to INetd directly.

Bug: 170598012
Test: atest FrameworksNetTests
Test: atest HostsideVpnTests
Test: manually test to connect to VPN and check the uid range
Change-Id: Ie6656ef36f54c2f14d5a2899e763a29b70a30f5d
2020-12-10 22:24:47 +08:00
paulhu
508ebddc46 Add a mutability flag to the PendingIntent
From S, it's required to specify explicitly either FLAG_MUTABLE
or FLAG_IMMUTABLE when creating a PendingIntent. Thus, add a
mutability flag to the PendingIntent in ConnectivityServiceTest
that doesn't specify it before.

Bug: 173157160
Test: atest FrameworksNetTests
Change-Id: I755c53b90d709dfbac576dc076722476c3edee35
2020-12-10 12:28:14 +00:00
Lorenzo Colitti
435d580374 Merge changes I6eb6d92b,I638e29fd,I2348b7a3
* changes:
  Add a convenience method to update a network's capabilities.
  Disallow NetworkAgents from changing the owner UID.
  Observe mOwnerUID in NetworkCapabilities#equals.
2020-12-10 08:11:52 +00:00
Serik Beketayev
a086c295e7 Merge "[Mainline Migration] Migrate NetworkUtils" 2020-12-09 23:47:05 +00:00
Lorenzo Colitti
e4e9d1f97e Disallow NetworkAgents from changing the owner UID.
The current behaviour with regards to changing the owner UID is
bizarre and arguably incorrect. A NetworkAgent can change the
owner to whatever other app it wants, regardless of signatures,
at any time. This includes, for example, transferring ownership
to another UID and then recovering it.

Fortunately no existing NetworkAgent appears to do this:
- ClientModeImpl sets it to the UID of the app that created the
  configuration. It doesn't look like it can change while the
  network is connected.
- Vpn sets it to the UID of the VPN owner. That also can't change.
- Telephony does not appear to set it at all, it only sets the
  administrator UIDs (and updates them whenever it gets
  EVENT_CARRIER_PRIVILEGED_UIDS_CHANGED).

Disallow this now before code is written that depends on it.

Bug: 175188445
Test: modified tests in ConnectivityServiceTest
Change-Id: I638e29fda2481ec3bf4fff562ea66a73322881df
2020-12-09 19:47:17 +09:00
Lorenzo Colitti
039ed698f1 Observe mOwnerUID in NetworkCapabilities#equals.
Currently, NetworkCapabilities's equals and hashCode methods
ignore mOwnerUID. This is confusing because it is inconsistent
with pretty much every other member of this class.

Bug: 175188445
Test: atest CtsNetTestCases:NetworkAgentTest \
            CtsNetTestCases:Ikev2VpnTest \
	    CtsNetTestCases:VpnServiceTest HostsideVpnTests \
	    CtsNetTestCases:android.net.cts.ConnectivityDiagnosticsManagerTest \
	    ConnectivityServiceTest com.android.server.connectivity.VpnTest
Change-Id: I2348b7a35f32a931687f2d3c2fa57620a12fe06f
2020-12-09 19:33:32 +09:00
Chalard Jean
47bd31b757 Migrate NetworkAgentWrapper to the new NA API
Test: FrameworksNetTests NetworkStackTests
Bug: 167544279
Change-Id: I5d53a938572682dea827ea681596226b1e271aa6
2020-12-08 19:43:10 +09:00
Lorenzo Colitti
0f3ce47158 Test for the current behaviour of updating a network's owner UID.
The current behaviour is at least bizarre and arguably incorrect.
Add a test to document the current behaviour so we can check that
any changes we make to this behaviour are correct.

Test: test-only change
Change-Id: I345bd320eced96316d92e520f576ae06b8020d9f
2020-12-08 01:40:47 +09:00
Serik Beketayev
9817226d99 [Mainline Migration] Migrate NetworkUtils
Migrating makeStrings(), numericToInetAddress() APIs

Bug: 173089079
Test: atest FrameworksNetTests
Change-Id: Ie914fd41bc3ce16d07f5d2768b89ce805b9245a9
2020-12-06 22:33:04 -08:00
Lorenzo Colitti
8ca385688d Merge changes Ic5a3e169,I76daa3ab
* changes:
  Refactor applyUnderlyingCapabilities and its test.
  Move applyUnderlyingCapabilities to ConnectivityService.
2020-12-02 04:55:12 +00:00
Lorenzo Colitti
fa24282505 Refactor applyUnderlyingCapabilities and its test.
This reduces verbose assertions and makes the test more compact.
I'm not sure whether it's actually more valuable, since the
current code, while more verbose, is probably more
straightforward to understand.

Also add a test for passing in a null underlying network (i.e.,
follow default network). This requires a minor refactoring in
ConnectivityService because the applyUnderlyingCapabilities does
not currently treat null specially.

Bug: 173331190
Test: test-only change
Change-Id: Ic5a3e16969ea9e1a529706850f148cb0d5fd8e09
2020-12-02 00:45:57 +09:00
Lorenzo Colitti
430a95f07c Move applyUnderlyingCapabilities to ConnectivityService.
This is essentially a straighforward move of code from Vpn to
ConnectivityService, and from VpnTest to ConnectivityServiceTest.

Bug: 173331190
Test: passes existing tests, moved tests pass
Change-Id: I76daa3abcc777e9c3ba57efb750de0e2e2f3bb74
2020-12-01 23:23:47 +09:00
Felipe Leme
b0402e7bf3 Deprecated UserManager.getUsers(excludeDying) / added getAliveUsers()
The existing method is confusing (the argument used to be called
includeDying) and it puts the burden on the caller (which need to
understand what the parameter means).

Furthermore:

- The majority of calls are for getUsers(excludeDying=true).
- The calls for getUsers(excludeDying=false) are equivalent to
  calls to getUsers()

Test: m
Test: a VpnTest ConnectivityServiceTest PermissionMonitorTest

Bug: 157921703
Change-Id: Ife767a40b7b7790ba28b5377046de822ddbf275c
Merged-In: Ife767a40b7b7790ba28b5377046de822ddbf275c
(cherry picked from commit 6dc6d2b964)
2020-12-01 15:25:52 +08:00
Lorenzo Colitti
6ec2a15480 Merge changes If2201f39,Ia1c366c5
* changes:
  Stop calling Vpn#updateCapabilities in CS.
  Stop accessing VPNs in checkConnectivityDiagnosticsPermissions.
2020-11-30 14:14:38 +00:00
Chalard Jean
05f12dff8e Migrate VPN to the public NetworkAgent API.
On top of being a cleanup this is useful for the S Network
Selection project that will need to enrich the Network
Agent API, and as such should not have to support legacy
agents.

Test: FrameworksNetTests NetworkStackTests
Bug: 167544279
Change-Id: Id3e5f6e19829c64074cd6a52c5f950cee56b860b
2020-11-30 16:15:18 +09:00
Lorenzo Colitti
17b88d8b06 Stop calling Vpn#updateCapabilities in CS.
Instead, make Vpn#onUserAdded and Vpn#onUserRemoved notify CS
of UID range changes through the VPN's NetworkAgent.

After this change, ConnectivityService no longer touches the
VPN's NetworkCapabilities directly, which is a much cleaner
design.

Bug: 173331190
Test: passes existing tests in ConnectivityServiceTest
Change-Id: If2201f392cdb5f00c89a97683ad4ce6bda7b89e5
2020-11-27 15:35:39 +09:00
Lorenzo Colitti
58fec06bd5 Stop accessing VPNs in checkConnectivityDiagnosticsPermissions.
Currently, checkConnectivityDiagnosticsPermissions takes the VPN
lock to examine the VPN's underlying networks. Use the underlying
network data that is available in ConnectivityService instead.

Bug: 173331190
Test: passes existing tests in ConnectivityServiceTest
Change-Id: Ia1c366c5e9974d4d2c4b38030e66c007d62020ff
2020-11-27 15:35:38 +09:00
Lorenzo Colitti
d182c40d8c Move applying underlying caps from Vpn to ConnectivityService.
Add support to ConnectivityService to track underlying networks
directly instead of through the Vpn class.

1. Communicate all information necessary to propagate underlying
   network capabilities to ConnectivityService via NetworkAgent.
   This includes:
   a. Underlying networks:
      - Add SystemApi for NetworkAgent to declare its underlying
        networks to ConnectivityService, and use it in Vpn.
      - Add a new declaredUnderlyingNetworks member to
        NetworkAgentInfo and store the underlying networks in it.
	Move propagation of underlying network capabilities to
	mixInCapabilities, which is a natural place for it.
   b. "Always metered" bit:
      - Communicate this to ConnectivityService via the existing
        NOT_METERED capability. Store it in a new declaredMetered
	boolean in NetworkAgentInfo to separate it cleanly from
	the NOT_METERED bit in the capabilities, which depends on
	whether the underlying networks are metered or not. In
	order to ensure that this is only ever changed when a NC
	update is received from a NetworkAgent, define a new
	processCapabilitiesFromAgent similar to the existing
        processLinkPropertiesFromAgent.

2. Ensure that propagating underlying network capabilities does
   not read the VPN's NetworkCapabilities. In order to do this,
   ensure that all relevant information on underlying networks
   and metering is sent to ConnectivityService at NetworkAgent
   registration time. CS still calls Vpn#updateCapabilities when
   a user is added/removed, but that is deleted in a future CL.

3. Slightly generalize propagating underlying network
   capabilities because there may be other network types that
   also have underlying networks that aren't VPNs (e.g., VCN).
   - Introduce a new supportsUnderlyingNetworks() boolean method
     in NetworkAgentInfo.
   - Rename updateAllVpnsCapabilities to
     propagateUnderlyingNetworkCapabilities.

This commit does not move the actual logic of calculating the
underlying capabilities out of Vpn.java. That can be done in a
subsequent change once CS stops calling getUnderlyingNetworks().

This commit also does not modify any of the other code in CS that
directly accesses VPNs' underlying networks.

Bug: 173331190
Test: passes existing tests in ConnectivityServiceTest
Test: CTS test in r.android.com/1511114
Test: atest CtsNetTestCases:Ikev2VpnTest HostsideVpnTests
Change-Id: I5f76cb1aa4866efed3d5c4590e931fdb0e994f8d
2020-11-27 15:35:38 +09:00
Treehugger Robot
e087ceed21 Merge changes Id4632e1b,I31985822,Ibbf96a25
* changes:
  Test passing an underlying network array with null network in it.
  Make testVpnNetworkActive more deterministic.
  Add a test for restricted profile added/removed with VPN up.
2020-11-26 03:40:44 +00:00
Lorenzo Colitti
f06fff4bf8 Test passing an underlying network array with null network in it.
Current code treats these nulls as if they weren't there.

Bug: 173331190
Test: test-only change
Change-Id: Id4632e1b004c09910b4b7613f7233d2c19e2f0ac
2020-11-26 10:33:23 +09:00
Lorenzo Colitti
de20152bbf Make testVpnNetworkActive more deterministic.
This test is a bit brittle because it sets the underlying
networks while the VPN is undergoing validation by
NetworkMonitor. The test does attempt to disable validation,
but that's not actually possible - the only thing that's possible
is to tell NetworkMonitor to validate immediately without sending
any probes. So the underlying network change races with the
validation. I'm not sure why the test isn't flaky. It might be
because both the network change and the validation result in a
capabilities change, and the test expects "a capabilities change"
without expressing what change that should be.

Make this a bit more predictable by ensuring that the network
validates before the underlying networks are set.

This is useful because an upcoming CL will change the way
underlying network capabilities are propagated. With this test
CL, both the old and the new code pass.

Bug: 173331190
Test: test-only change
Change-Id: I319858228e8d097c0b60a107029f296385f91269
2020-11-26 10:33:23 +09:00