Handle downstream tethering interface addresses in MdnsSocketProvider
MdnsSocketProvider currently does not fill addresses of downstream
tethering interfaces in its callbacks. The interface addresses should be
properly updated by listening to the Netlink messages.
Test: atest FrameworksNetTests CtsNetTestCases
Bug: 267980538
Change-Id: I753e547a1b092703fe59c6c9e922ee8aca245f67
diff --git a/framework/src/android/net/LinkAddress.java b/framework/src/android/net/LinkAddress.java
index d48b8c7..90f55b3 100644
--- a/framework/src/android/net/LinkAddress.java
+++ b/framework/src/android/net/LinkAddress.java
@@ -487,17 +487,23 @@
*/
@SystemApi
public boolean isGlobalPreferred() {
- /**
- * Note that addresses flagged as IFA_F_OPTIMISTIC are
- * simultaneously flagged as IFA_F_TENTATIVE (when the tentative
- * state has cleared either DAD has succeeded or failed, and both
- * flags are cleared regardless).
- */
- int flags = getFlags();
return (scope == RT_SCOPE_UNIVERSE
&& !isIpv6ULA()
- && (flags & (IFA_F_DADFAILED | IFA_F_DEPRECATED)) == 0L
- && ((flags & IFA_F_TENTATIVE) == 0L || (flags & IFA_F_OPTIMISTIC) != 0L));
+ && isPreferred());
+ }
+
+ /**
+ * Checks if the address is a preferred address.
+ *
+ * @hide
+ */
+ public boolean isPreferred() {
+ // Note that addresses flagged as IFA_F_OPTIMISTIC are simultaneously flagged as
+ // IFA_F_TENTATIVE (when the tentative state has cleared either DAD has succeeded or
+ // failed, and both flags are cleared regardless).
+ int flags = getFlags();
+ return (flags & (IFA_F_DADFAILED | IFA_F_DEPRECATED)) == 0L
+ && ((flags & IFA_F_TENTATIVE) == 0L || (flags & IFA_F_OPTIMISTIC) != 0L);
}
/**