LineageOS/android_packages_modules_Connectivity
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Merge "Support changing the NAT64 prefix without removing it."

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This commit is contained in:
Lorenzo Colitti
2020-04-16 16:24:57 +00:00
committed by Gerrit Code Review
parent 836df36aee 7f3d684631
commit f09bc1734f
2 changed files with 50 additions and 9 deletions
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25
tests/net/java/com/android/server/ConnectivityServiceTest.java
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@@ -5969,6 +5969,9 @@ public class ConnectivityServiceTest {
final LinkAddress myIpv6 = new LinkAddress("2001:db8:1::1/64");
final String kNat64PrefixString = "2001:db8:64:64:64:64::";
final IpPrefix kNat64Prefix = new IpPrefix(InetAddress.getByName(kNat64PrefixString), 96);
final String kOtherNat64PrefixString = "64:ff9b::";
final IpPrefix kOtherNat64Prefix = new IpPrefix(
InetAddress.getByName(kOtherNat64PrefixString), 96);
final RouteInfo defaultRoute = new RouteInfo((IpPrefix) null, myIpv6.getAddress(),
MOBILE_IFNAME);
final RouteInfo ipv6Subnet = new RouteInfo(myIpv6, null, MOBILE_IFNAME);
@@ -6082,6 +6085,24 @@ public class ConnectivityServiceTest {
}
reset(mMockNetd);
// Change the NAT64 prefix without first removing it.
// Expect clatd to be stopped and started with the new prefix.
mService.mNetdEventCallback.onNat64PrefixEvent(cellNetId, true /* added */,
kOtherNat64PrefixString, 96);
networkCallback.expectLinkPropertiesThat(mCellNetworkAgent,
(lp) -> lp.getStackedLinks().size() == 0);
verify(mMockNetd, times(1)).clatdStop(MOBILE_IFNAME);
assertRoutesRemoved(cellNetId, stackedDefault);
verify(mMockNetd, times(1)).clatdStart(MOBILE_IFNAME, kOtherNat64Prefix.toString());
networkCallback.expectLinkPropertiesThat(mCellNetworkAgent,
(lp) -> lp.getNat64Prefix().equals(kOtherNat64Prefix));
clat.interfaceLinkStateChanged(CLAT_PREFIX + MOBILE_IFNAME, true);
networkCallback.expectLinkPropertiesThat(mCellNetworkAgent,
(lp) -> lp.getStackedLinks().size() == 1);
assertRoutesAdded(cellNetId, stackedDefault);
reset(mMockNetd);
// Add ipv4 address, expect that clatd and prefix discovery are stopped and stacked
// linkproperties are cleaned up.
cellLp.addLinkAddress(myIpv4);
@@ -6096,7 +6117,7 @@ public class ConnectivityServiceTest {
networkCallback.expectCallback(CallbackEntry.LINK_PROPERTIES_CHANGED, mCellNetworkAgent);
LinkProperties actualLpAfterIpv4 = mCm.getLinkProperties(mCellNetworkAgent.getNetwork());
LinkProperties expected = new LinkProperties(cellLp);
expected.setNat64Prefix(kNat64Prefix);
expected.setNat64Prefix(kOtherNat64Prefix);
assertEquals(expected, actualLpAfterIpv4);
assertEquals(0, actualLpAfterIpv4.getStackedLinks().size());
assertRoutesRemoved(cellNetId, stackedDefault);
@@ -6115,7 +6136,7 @@ public class ConnectivityServiceTest {
// Stopping prefix discovery causes netd to tell us that the NAT64 prefix is gone.
mService.mNetdEventCallback.onNat64PrefixEvent(cellNetId, false /* added */,
kNat64PrefixString, 96);
kOtherNat64PrefixString, 96);
networkCallback.expectLinkPropertiesThat(mCellNetworkAgent,
(lp) -> lp.getNat64Prefix() == null);