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
diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index 0c45285..ea91395 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -3144,7 +3144,7 @@
}
}
- nai.clatd.setNat64Prefix(prefix);
+ nai.clatd.setNat64PrefixFromDns(prefix);
handleUpdateLinkProperties(nai, new LinkProperties(nai.linkProperties));
}
@@ -5856,9 +5856,9 @@
@NonNull LinkProperties oldLp) {
int netId = networkAgent.network.netId;
- // The NetworkAgentInfo does not know whether clatd is running on its network or not, or
- // whether there is a NAT64 prefix. Before we do anything else, make sure its LinkProperties
- // are accurate.
+ // The NetworkAgent does not know whether clatd is running on its network or not, or whether
+ // a NAT64 prefix was discovered by the DNS resolver. Before we do anything else, make sure
+ // the LinkProperties for the network are accurate.
networkAgent.clatd.fixupLinkProperties(oldLp, newLp);
updateInterfaces(newLp, oldLp, netId, networkAgent.networkCapabilities,
diff --git a/services/core/java/com/android/server/connectivity/Nat464Xlat.java b/services/core/java/com/android/server/connectivity/Nat464Xlat.java
index 82465f8..3b3c520 100644
--- a/services/core/java/com/android/server/connectivity/Nat464Xlat.java
+++ b/services/core/java/com/android/server/connectivity/Nat464Xlat.java
@@ -81,7 +81,7 @@
RUNNING, // start() called, and the stacked iface is known to be up.
}
- private IpPrefix mNat64Prefix;
+ private IpPrefix mNat64PrefixFromDns;
private String mBaseIface;
private String mIface;
private Inet6Address mIPv6Address;
@@ -100,7 +100,7 @@
* currently connected and where the NetworkAgent has not disabled 464xlat. It is the signal to
* enable NAT64 prefix discovery.
*
- * @param network the NetworkAgentInfo corresponding to the network.
+ * @param nai the NetworkAgentInfo corresponding to the network.
* @return true if the network requires clat, false otherwise.
*/
@VisibleForTesting
@@ -180,7 +180,7 @@
String addrStr = null;
try {
- addrStr = mNetd.clatdStart(baseIface, mNat64Prefix.toString());
+ addrStr = mNetd.clatdStart(baseIface, getNat64Prefix().toString());
} catch (RemoteException | ServiceSpecificException e) {
Slog.e(TAG, "Error starting clatd on " + baseIface + ": " + e);
}
@@ -318,8 +318,12 @@
}
}
- public void setNat64Prefix(IpPrefix nat64Prefix) {
- mNat64Prefix = nat64Prefix;
+ private IpPrefix getNat64Prefix() {
+ return mNat64PrefixFromDns;
+ }
+
+ public void setNat64PrefixFromDns(IpPrefix prefix) {
+ mNat64PrefixFromDns = prefix;
}
/**
@@ -328,7 +332,7 @@
* has no idea that 464xlat is running on top of it.
*/
public void fixupLinkProperties(@NonNull LinkProperties oldLp, @NonNull LinkProperties lp) {
- lp.setNat64Prefix(mNat64Prefix);
+ lp.setNat64Prefix(getNat64Prefix());
if (!isRunning()) {
return;
diff --git a/tests/net/java/com/android/server/connectivity/Nat464XlatTest.java b/tests/net/java/com/android/server/connectivity/Nat464XlatTest.java
index 9b24887..d0ebb52 100644
--- a/tests/net/java/com/android/server/connectivity/Nat464XlatTest.java
+++ b/tests/net/java/com/android/server/connectivity/Nat464XlatTest.java
@@ -181,7 +181,7 @@
Nat464Xlat nat = makeNat464Xlat();
ArgumentCaptor<LinkProperties> c = ArgumentCaptor.forClass(LinkProperties.class);
- nat.setNat64Prefix(new IpPrefix(NAT64_PREFIX));
+ nat.setNat64PrefixFromDns(new IpPrefix(NAT64_PREFIX));
// Start clat.
nat.start();
@@ -222,7 +222,7 @@
ArgumentCaptor<LinkProperties> c = ArgumentCaptor.forClass(LinkProperties.class);
InOrder inOrder = inOrder(mNetd, mConnectivity);
- nat.setNat64Prefix(new IpPrefix(NAT64_PREFIX));
+ nat.setNat64PrefixFromDns(new IpPrefix(NAT64_PREFIX));
nat.start();
@@ -309,7 +309,7 @@
Nat464Xlat nat = makeNat464Xlat();
ArgumentCaptor<LinkProperties> c = ArgumentCaptor.forClass(LinkProperties.class);
- nat.setNat64Prefix(new IpPrefix(NAT64_PREFIX));
+ nat.setNat64PrefixFromDns(new IpPrefix(NAT64_PREFIX));
nat.start();
@@ -348,7 +348,7 @@
public void testStopBeforeClatdStarts() throws Exception {
Nat464Xlat nat = makeNat464Xlat();
- nat.setNat64Prefix(new IpPrefix(NAT64_PREFIX));
+ nat.setNat64PrefixFromDns(new IpPrefix(NAT64_PREFIX));
nat.start();
@@ -380,7 +380,7 @@
public void testStopAndClatdNeverStarts() throws Exception {
Nat464Xlat nat = makeNat464Xlat();
- nat.setNat64Prefix(new IpPrefix(NAT64_PREFIX));
+ nat.setNat64PrefixFromDns(new IpPrefix(NAT64_PREFIX));
nat.start();