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
Original-Change: https://android-review.googlesource.com/1011670
Merged-In: I1b54abed0e931ca4b8a97149459cde54da1c3d6f
Change-Id: I1b54abed0e931ca4b8a97149459cde54da1c3d6f
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
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
This class might be used by some mainline modules.
Bug: 151052811
Test: atest DnsPacketTest
Test: atest DnsResolverTest
Change-Id: I8841d91456952ded5efbf8ea221289aecc7746ad
This patch addresses the followings,
- Pass Looper to NetworkStatsSubscriptionsMonitor constructor
- Replace Looper with TestLooper in unit test
- Assert fail if result of condition check is not expected.
Bug: 154080205
Test: atest FrameworksNetTests:com.android.server.net.NetworkStatsServiceTest
atest FrameworksNetTests:com.android.server.net.NetworkStatsSubscriptionsMonitorTest
Change-Id: Ibcaba2b38af80cc0ec9a4e428a3b3a1538bc4325
This is a Client-only solution.
- Add to NetdClient a per-process std::atomic_boolean
similar to netIdForProcess and netIdForResolv.
- The boolean says whether the process should be
allowed Internet connectivity.
- Add an @hide method to NetUtils.java to set the boolean;
call it from the initialization code of the new
process just after forking from zygote.
- Make netdClientSocket and dnsOpenProxy check the
boolean. If the boolean is false, return EPERM from
socket calls.
Bug: 150028556
Test: atest NetworkUtilsTest
Test: atest CtsAppSecurityHostTestCases:UseProcessTest
Change-Id: If002280fbad493dfc2db3d9d505c0257d49a9056
Exempt-From-Owner-Approval: OWNERS already approved identical patchset 5
On Android different interfaces usually use different routing tables.
As a result, a change in interface should not be treated as route
update, but rather a remove and an add.
This change fixes a bug in VPN seamless handover where routes
failed to be updated when a new tunnel interface replaces the existing
one within the same network.
Bug: 158696878
Test: atest com.android.cts.net.HostsideVpnTests
Test: atest NetworkStackTests
Test: atest CtsNetTestCases
Test: atest FrameworksNetTests
Original-Change: https://android-review.googlesource.com/1331916
Merged-In: I57987233d42a0253eaee2e1ca5f28728c2354620
Change-Id: I57987233d42a0253eaee2e1ca5f28728c2354620
