Commit Graph

2660 Commits

Author SHA1 Message Date
paulhu
9883de0b7f [RFPM02] Add Dependencies class for injection in tests.
Add Dependencies class in PermissionMonitor for injection
in tests easily.

Bug: 132784544
Test: atests FrameworksNetTests
Change-Id: Ibb84d548908f7a955fa0ff206794486733259978
2020-07-08 15:30:42 +08:00
Pavel Grafov
840c688ba5 Merge "Connectivity: start PAC global proxy after reboot." 2020-07-03 10:54:10 +00:00
Paul Hu
fac73070cc Merge "[RFPM01] Merge package added/removed methods" 2020-06-29 11:50:57 +00:00
Cody Kesting
b0174784bc Send ConnDiags event before revalidating network in CS.
This change updates ConnectivityService to notify the
ConnectivityDiagnosticsHandler of app-reported connectivity before
attempting to revalidate the network. This change forces an ordering on
Connectivity Diagnostics events in the case that the reported
connectivity does not match the known connectivity for the network -
this leads to the network being revalidated and the
ConnectivityDiagnostics event onConnectivityReportAvailable. Passing the
onNetworkConnectivityReported event to the
ConnectivityDiagnosticsHandler first ensures that it is passed to
callbacks before any potential ConnectivityReports are.

Bug: 159718782
Test: android.net.cts.ConnectivityDiagnosticsManagerTest
Change-Id: Ic7bc7138c54c47bbfdf56af5811709fde66f8606
2020-06-25 16:57:18 -07:00
paulhu
e952ccfdf4 [RFPM01] Merge package added/removed methods
There are two methods to handle package added/removed from
two differnt listeners. It can use one of listener to handle the
changes. Thus, keep PackageManagerInternal#PackageListObserver
but remove the listening from ConnectivityService.

Bug: 132784544
Test: atests FrameworksNetTests
Change-Id: Ib2db85e4108f9fda731bf6667d0af0610fc79fea
2020-06-23 16:10:03 +08:00
Paul Hu
8ae6128b05 Merge "Make PendingIntent immutable and correct Settings package name" 2020-06-23 03:55:22 +00:00
paulhu
68426196a5 Make PendingIntent immutable and correct Settings package name
ConnectivityService puts up some notifications with pending
intents, but these pending intents are mutable that content can
be changed by someone. So make these pending intents to be
immutable.

Some OEMs have their own Settings package. Thus, need to get the
current using Settings package name instead of just use default
name "com.android.settings".

Bug: 154928507
Test: atest FrameworksNetTests
Change-Id: I02e3277358623400aa03dc8996af3d7c46a8ce76
Merged-In: I02e3277358623400aa03dc8996af3d7c46a8ce76
2020-06-23 10:05:01 +08:00
Mike Yu
d0e4221f64 Support DNS-over-TLS probes in NetworkDiagnostics
Probe DNS servers to see they support DNS-over-TLS. Use system
CAs to verify whether the certificates sent by DNS servers are
trusted or not. An error is thrown to cause the probe failed if
DNS servers send untrusted certificates.

Unlike the DnsResolver which doesn't verify the certificates
in opportunistic mode, all of the DoT probes from NetworkDiagnostics
check certificates.

DoT probes apply to the DNS servers gotten from LinkProperties
and the DoT servers gotten from PrivateDnsConfig whatever private
DNS mode is.

A common example in DNS strict mode:
.  DNS TLS dst{8.8.8.8} hostname{dns.google} src{192.168.43.2:48436} qtype{1} qname{815149-android-ds.metric.gstatic.com}: SUCCEEDED: 1/1 NOERROR (432ms)
F  DNS TLS dst{192.168.43.144} hostname{}: FAILED: java.net.ConnectException: failed to connect to /192.168.43.144 (port 853) from /192.168.43.2 (port 41770) after 2500ms: isConnected failed: ECONNREFUSED (Connection refused) (172ms)
.  DNS TLS dst{8.8.4.4} hostname{dns.google} src{192.168.43.2:37598} qtype{1} qname{759312-android-ds.metric.gstatic.com}: SUCCEEDED: 1/1 NOERROR (427ms)

An example when the CA is not trusted:
F  DNS TLS dst{8.8.8.8} hostname{dns.google}: FAILED: javax.net.ssl.SSLHandshakeException: java.security.cert.CertPathValidatorException: Trust anchor for certification path not found. (16ms)

An example when TCP/TLS handshake timeout:
F  DNS TLS dst{8.8.8.8} hostname{dns.google}: FAILED: java.net.SocketTimeoutException: failed to connect to /8.8.8.8 (port 853) from /192.168.2.108 (port 45680) after 2500ms (2514ms)

Bug: 132925257
Bug: 118369977
Test: atest FrameworksNetTests
Change-Id: I1b54abed0e931ca4b8a97149459cde54da1c3d6f
2020-06-20 16:22:35 +08:00
Pavel Grafov
600309ddf8 Connectivity: start PAC global proxy after reboot.
Previously, we read the global proxy settings from Settings.Global
database after reboot. This works for manual proxies, but not for
proxies based on PAC rules, as PacManager is never invoked when
ConnectivityService starts up. As a consequence, services required for
PAC-based proxies (PacService and ProxyService) are never started.

In this CL, we make sure PacManager is called during boot, so that PAC
rules will take effect.

Bug: 35943997
Test: set a PAC proxy and observe it still works after reboot
Change-Id: I69edb5fcd3e84663d338ff4b93c40fd5ee2c8c51
2020-06-17 00:18:34 +01:00
Benedict Wong
08447ffcc0 Merge "Set correct owner UID for VPN agentConnect()" 2020-06-15 17:09:46 +00:00
Chalard Jean
7f06b34acd Document the limitation to a hundred callbacks.
Some developers have been surprised by this limitation and had trouble
figuring out what the issue was. Add documentation to address this.

This also includes a drive-by removal of a duplicate check.

Bug: 149867479
Test: doc-only change
Change-Id: I5911d01984695550b6c9afe7a8eb535bf5e320a1
2020-06-11 12:30:21 +00:00
Benedict Wong
e3bcbc0ec7 Set correct owner UID for VPN agentConnect()
This commit changes agentConnect to set the owner UID as the mOwnerUid
field instead of the Binder.getCallingUid().

Binder.getCallingUid() can return incorrect results for platform VPNs,
as agentConnect() is called under a clean calling UID.

Additionally, this relaxes the ownerUid sanitization check to allow a
VPN network's owner to see it's own ownership information.

Vpn.mOwnerUid is guaranteed to be correct, as all VPNs MUST have called
prepareInternal() at some previous point, which sets mOwnerUid as the
package's UID (or SYSTEM_UID if this is legacy VPN).

Bug: 150135470
Test: CTS tests showing ownership information
Change-Id: Ic979dad73983d722365849fbfb0becfd432b894c
2020-06-08 14:33:01 -07:00
junyulai
0202567a01 Disable log for per uid blocked status changed event
This consumes ~3.5% system logs, however it is not very useful
when debugging since similar information could be obtained from
dumpsys {connectivity|netpolicy}. Thus, remove the log.

Test: manual
Bug: 135504481
Change-Id: I04d2b7402f892546722fe6868c521afd9534f183
2020-06-02 14:26:36 +08:00
Cody Kesting
7039e1cbc8 Merge "Comment reason for simulateDataStall structure." 2020-05-27 17:11:57 +00:00
Lorenzo Colitti
eed51faa49 Merge "Inform the DNS resolver when it needs to do DNS64 synthesis." 2020-05-26 09:26:46 +00:00
Cody Kesting
51691051d2 Comment reason for simulateDataStall structure.
This change adds a comment to CS#simulateDataStall to explain why the
Data Stall is wrapped in a DataStallReportParcelable before being passed
to the ConnectivityDiagnostics handler. This approach is taken to ensure
that simulated data stalls are handled the exact same as Data Stalls
received directly from NetworkMonitor (including Data Stalls detected by
methods that the platform does not understand).

Bug: 156294356
Test: atest ConnectivityDiagnosticsManager
Change-Id: I751054418bf328c72b977a1cc99c27cb9b8ab7ba
2020-05-21 12:08:21 -07:00
Lorenzo Colitti
f28b6b705c Inform the DNS resolver when it needs to do DNS64 synthesis.
This is only necessary when learning the NAT64 prefix from the
RA, because if the NAT64 prefix is learned from DNS, the DNS
resolver already knows the prefix and automatically enables
DNS64 synthesis.

The DNS resolver needs to be informed of the prefix any time
clat is running on a prefix learned from an RA. This is simple to
implement: just set the prefix when starting clat if prefix
discovery is not running, and clear the prefix when stopping clat
if prefix discovery was not running. This ensures that the prefix
is cleared iff it was set.

Bug: 156914456
Test: new unit test coverage
Change-Id: If8ad2d30712a6df3e207c8d3e8a129705242191e
2020-05-21 23:32:57 +09:00
Cody Kesting
43a47efd1c Forward unknown Data Stall types to Connectivity Diagnostics.
This CL forwards suspected Data Stall events detected with unknown
detection methods to ConnectivityDiagnostics.

Currently, ConnectivityService drops any data stall events with unknown
detection methods, which leads to false negatives for Connectivity
Diagnostics registrants. This change ensures that registrants will still
be notified as NetworkStack is updated to use new detection methods.

The documentation for ConnectivityDiagnosticsManager#DataStallReport is
also updated to reflect that the detection methods included in the
report are a bit mask of detection methods used. Implicitly, this means
that data stalls detected via unknown methods will have an empty bit
mask (0x00).

Bug: 156294356
Test: atest ConnectivityDiagnosticsManager
Change-Id: I62d0bf91fcc17c7921afd519c72551399906bd6b
2020-05-19 10:57:29 -07:00
Cody Kesting
6784cf6966 Move Data Stall logic to CS from NetworkMonitorCallbacks.
This change moves the logic for handling Data Stall notifications from
NetworkMonitorCallbacks to ConnectivityService. This avoids duplicate
logic for managing data stall simulation requests from
ConnectivityManager. This also puts all of the logic for proxying Data
Stall notifications to the ConnectivityDiagnosticsHandler into one
place.

Bug: 148032944
Test: atest ConnectivityDiagnosticsManagerTest
Change-Id: Ie2f6a1a2376c5c452750ab417cb5e8c24fc44fc3
2020-05-12 16:24:46 -07:00
Cody Kesting
727f0d1d44 Merge "Create TestApi for simulating a Data Stall on ConnectivityService." 2020-05-12 16:52:35 +00:00
Cody Kesting
eb44b7b1bb Merge "Set owner and administrator UIDs for test networks." 2020-05-12 16:52:07 +00:00
Remi NGUYEN VAN
7d8b7603ab Merge "Send full LinkProperties to NetworkMonitor" 2020-05-12 08:13:05 +00:00
Remi NGUYEN VAN
3b1d8b491d Send full LinkProperties to NetworkMonitor
Set the parcelSensitiveFields bit when sending LinkProperties to
NetworkMonitor, so that the captive portal API URL is not lost.

Test: atest ConnectivityServiceIntegrationTest (see followup change)
Bug: 156062304
Change-Id: Ifd4e9c02a6b9a2b2b8b254fc4da7bfb9e0a84550
2020-05-10 16:11:11 +09:00
Chalard Jean
a4a379d6c9 Merge "Fix a bug where a spurious capabilities callback is sent." 2020-05-08 00:49:33 +00:00
Chalard Jean
8c5e45895d Fix a bug where a spurious capabilities callback is sent.
When a VPN connects and it has any underlying network (which
means almost always, because it will take the default network
if it doesn't declare any), it has default capabilities and
will only take the capabilities of its underlying network
as part of an update happening after making the network
available but before the rematch can take place. This in turn
causes the capabilities callback sent as part of the rematch
to be spuriously sent.

Test: FrameworksNetTests. Also tested together with a
      followup that adds tests with drive-by coverage for this.
Bug: 150570873
Change-Id: Id7d8bba486bada1a7ba5b0f152d2aa02e407f249
2020-05-07 12:07:03 +09:00
Cody Kesting
b5c7abd071 Create TestApi for simulating a Data Stall on ConnectivityService.
This change adds a TestApi for simulating a Data Stall to
ConnectivityService. This allows for Data Stalls to be triggered without
having to manipulate the signals used by NetworkMonitor . This also
allows NetworkMonitor to update the ways it detects Data Stalls without
affecting CTS tests for ConnectivityDiagnosticsManager.

Bug: 148032944
Test: atest ConnectivityDiagnosticsManagerTest
Change-Id: Icad439efa2ab4c872c21d3ee6ceaae8c5b49f18d
2020-04-27 20:55:00 -07:00
Cody Kesting
ba3433669a Set owner and administrator UIDs for test networks.
This change sets the owner and administrator UIDs for test networks when
their initial values match the UID for the app creating the test
network. This ensures that apps registering test networks can only make
themselves owners / administrators of the network.

Bug: 153449964
Test: atest NetworkAgentTest
Change-Id: I3a974700aa1d83cb285295ed1de0aa263e2e5b58
2020-04-27 20:54:57 -07:00
Remi NGUYEN VAN
b6acc7f50e Merge "Add comment / logging in NetworkMonitor callbacks" 2020-04-27 07:26:25 +00:00
Remi NGUYEN VAN
fb0774ead9 Add comment / logging in NetworkMonitor callbacks
Add a comment explaining the ordering of messages sent to the tracker
and connectivity diagnostics handlers.

Add a Slog.wtf call in case the deprecated notifyNetworkTested callback
is called.

Bug: 153500847
Test: atest ConnectivityServiceTest
Change-Id: I2dbfc9bf7b2f785ea4594851bd354e9fd0fc0bd1
2020-04-24 20:56:39 +09:00
Remi NGUYEN VAN
bfc85a162a Merge "Address comments on NetworkStack AIDL v6" 2020-04-24 11:56:32 +00:00
Remi NGUYEN VAN
e15e61e712 Address comments on NetworkStack AIDL v6
Address issues found during AIDL review:
 - Rename clientAddr to singleClientAddr
 - Do not use a ParcelableBundle for notifyNetworkTested or
   notifyDataStallSuspected; instead use AIDL parcelables for stronger
   backwards compatibility guarantees.

Test: atest NetworkMonitorTest ConnectivityServiceTest
      ConnectivityServiceIntegrationTest, manual
Bug: 153500847
Change-Id: Id9b71784e5f6294d203230e57737979e063ff0f8
2020-04-24 18:52:02 +09:00
Philip P. Moltmann
bbf050b58d Set attributionTag for noteOp(WRITE_SETTINGS) calls
Test: atest FrameworksNetTests TetheringTests:TetheringServiceTest
Bug: 136595429
Merged-In: I33f787644c44d7b0e5ce17a433820cfcd985cdfb
Change-Id: Ic3d937e7bb5141798234ed5b2852c1f768e97495
2020-04-20 18:00:03 -07:00
Lorenzo Colitti
d8911baa45 Stop prefix discovery if an RA prefix arrives in DISCOVERING
Currently, if a prefix is learned from an RA while prefix
discovery is running, clatd will be correctly started, but
prefix discovery will be stopped.

In order to fix this, make it possible to call
stopPrefixDiscovery without transitioning to IDLE state (which
is obviously necessary in this case), by moving the assignment of
the next state from that method to its callers. For consistency,
do the same for startPrefixDiscovery.

Bug: 150648313
Test: new test coverage
Change-Id: I3803fa3d9806848b331c35ee8bac256934bd1f21
2020-04-20 17:54:20 +09:00
Lorenzo Colitti
54fb93fbde Support learning the NAT64 prefix from two different sources.
The NAT64 prefix from the RA always takes precedence over the
NAT64 prefix from DNS discovery, because it is detected faster,
and detecting it does not require sending any packets.

Bug: 150648313
Test: new unit test
Change-Id: Ic7452431d2d9aea1ae59b67a9d8383c6cc5b3902
2020-04-20 16:50:53 +09:00
Aaron Huang
767e3a23d2 Merge changes from topic "cts-networkprovider"
* changes:
  Add cts test for NetworkProvider
  Adjust permission of NetworkProvider related API
2020-04-17 03:59:47 +00:00
Lorenzo Colitti
1e0ebcec4a Merge "Add a function to process LinkProperties coming from an agent." 2020-04-16 16:25:29 +00:00
Lorenzo Colitti
fa6b37b1e0 Merge "Support changing the NAT64 prefix without removing it." 2020-04-16 16:24:57 +00:00
Lorenzo Colitti
1b6f19d003 Add a function to process LinkProperties coming from an agent.
There are tasks that need to be performed when receiving
LinkProperties directly from a NetworkAgent (either at
registration time or in subsequent updates).

Currently, the only example of such a task is calling
ensureDirectlyConnectedRoutes. This is currently done in
handleUpdateLinkProperties, which is often unnecessary,
because that method iscalled in many other cases than when
receiving properties directly from an agent. Ensuring directly
connected routes only needs to be done when receiving
LinkProperties from the agent, because ConnectivityService does
not directly manipulate routes.

This CL does not do much except remove these superfluous calls
and add the method. A future CL will add more code to the method.

Bug: 150648313
Test: atest ConnectivityServiceTest
Change-Id: Ibeeb5f79e8afd3350c935934713d7882f2e0281f
2020-04-16 16:23:07 +09:00
Aaron Huang
e5c0ba325d Adjust permission of NetworkProvider related API
- Allow an app holds NETWORK_SETTINGS to acess registerNetworkProvier()
  and unregisterNetworkProvider().
- To access declareNetworkRequestUnfulfillable(), allow an app holds
  MANAGE_TEST_NETWORKS to declare a unfulfillable request that contains
  TRANSPORT_TEST transport.

This makes easier to write cts to test.

Bug: 153612373
Bug: 153614605
Test: atest FrameworksNetTests
      atest CtsNetTestCases:android.net.NetworkProviderTest
Change-Id: Ic9809e731aa811a51c2f82d189372169d99a5ed9
2020-04-16 14:03:55 +08:00
Lorenzo Colitti
b3e329c4b3 Support changing the NAT64 prefix without removing it.
This cannot (currently) happen with DNS64 detection, but it can
happen with the PREF64 option.

Bug: 150648313
Test: atest ConnectivityServiceTest Nat464XlatTest --rerun-until-failure 100
Change-Id: I789fe9d46d3ac5d074ae697d23013f24a9e0246d
2020-04-16 00:07:30 +09:00
Chalard Jean
089f46b079 Merge "Allow testing of signal strength" 2020-04-13 17:27:06 +00:00
Chalard Jean
cbc7c5b171 Allow testing of signal strength
- Let any process with NETWORK_SETTINGS register for signal strength
  wakeup.
- Allow agents registering test networks to assign them a signal
  strength.

Test: NetworkAgentTest
Bug: 139268426
Change-Id: I2b4b89be3e69f4853fd6978d2c8f5c8eb4271f21
2020-04-13 21:55:32 +09:00
chenbruce
2e6b79f3d2 Set transport types to resolver
For a given network, resolver doesn't know what transport types are.
Therefore, when a new network is created or transport types are changed
in a give network, transport types will be updated and sent by calling
setResolverConfiguration(). In the same time, if link properties or
transport types are null, setResolverConfiguration() won't be called.
The original behaviors of setResolverConfiguration() aren't changed.
Only increasing one new behavior that when a given network has transport
type change, calling setResolverConfiguration() directly and resolver
updates the transport types for that given network.

Bug: 143732914
Test: atest FrameworksNetTests
      atest FrameworksNetIntegrationTests
Merged-In: I03fc5c62dfd9a51a78a720860531df282fdecc20
Change-Id: I6527cde0e177ba08c886576131b35fc769c2bb53
2020-04-11 23:00:13 +08:00
Lorenzo Colitti
3f18aa996d Refactor the Nat464Xlat function for simplicity.
This makes the code easier to understand by making state
transitions more explicit. It also makes it easier to address a
TODO to turn the class into a StateMachine.

This should be an exact no-op refactoring. The current cases
covered by the code (all mutually exclusive) are:

1. requiresClat && !isPrefixDiscoveryStarted
   Action: startPrefixDiscovery()
   Equivalent to IDLE && requiresClat, because
   isPrefixDiscoveryStarted returns true for every state except
   IDLE.

2. requiresClat && isPrefixDiscoveryStarted && shouldStartClat
   Action: start()
   Equivalent to DISCOVERING && shouldStartClat,
   because isPrefixDiscoveryStarted is true in DISCOVERING,
   STARTING, and RUNNING, but start() does nothing if mState is
   STARTING or RUNNING.

3. requiresClat && isPrefixDiscoveryStarted && !shouldStartClat
   Action: stop()
   Equivalent to (STARTING or RUNNING) && !shouldStartClat,
   because isPrefixDiscoveryStarted is true in DISCOVERING,
   STARTING, and RUNNING, but stop() does nothing if mState is
   not STARTING or RUNNING.

4. !requiresClat && isStarted
   Action: stop()
   Equivalent to (STARTING or RUNNING) && !requiresClat,
   because isStarted() is only true in STARTING and RUNNING.

5. !requiresClat && !isStarted && isPrefixDiscoveryStarted
   Action: leaveStartedState()
   Equivalent to DISCOVERING && !requiresClat, because
   the only state with isPrefixDiscoveryStarted and !isStarted
   is DISCOVERING.

Also, simplify case #5. In this case, calling leaveStartedState
is superfluous, because in the DISCOVERING state:
- There is no need to call unregisterObserver, since the observer
  is only registered when entering STARTING and is unregistered
  when going back to DISCOVERING or IDLE.
- mIface and mBaseIface don't need to be set to null because they
  are only set to non-null when entering STARTING and nulled out
  when going back to DISCOVERING or IDLE.

Bug: 126113090
Bug: 150648313
Test: covered by existing ConnectivityServiceTest and Nat464XlatTest
Change-Id: Ice536bcb269cc8b040c6e7a72c15d0bc8b5bd235
2020-04-04 16:24:58 +09:00
Lorenzo Colitti
fff75393c5 Rename the *Nat64Prefix to *Nat64PrefixFromDns.
This just a rename with no functional changes at all. It is
preparation for supporting getting the NAT64 prefix from the
RA.

Bug: 150648313
Test: covered by existing ConnectivityServiceTest and Nat464XlatTest
Change-Id: Ia9a09a708870827b1e4cf068f930fa9542dd116c
2020-04-02 22:48:03 +09:00
Lorenzo Colitti
f198a43744 Merge "Only apply VPN isolation if it's fully routed" 2020-04-02 04:10:12 +00:00
Rubin Xu
fa429013a0 Only apply VPN isolation if it's fully routed
VPN is considered fully routed if both IPv4 and IPv6 have
either a default route or a prohibit route.

Bug: 145332510
Test: atest FrameworksNetTests
Change-Id: I59cf48552bca98092d1212e3d718fd420add5458
2020-04-01 09:36:29 +01:00
Cody Kesting
0a45ad1dc1 Merge "Update CS helper for clearing NetworkCapabilities UIDs." 2020-03-31 20:18:17 +00:00
Cody Kesting
b2582a32e8 Merge "Simplify unregister logic for Connectivity Diagnostics callbacks." 2020-03-31 20:18:01 +00:00
Cody Kesting
71016c103f Merge "Clarify comments for Connectivity Diagnostics reports." 2020-03-31 17:43:44 +00:00