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Release the interface request when Ethernet tethering is stopped.

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When the Ethernet interface becomes unavailable (e.g., because
the cable was unplugged or the interface was removed), or when
setEthernetTethering(false) is called, release the Ethernet
interface request.

This ensures that:
- The Ethernet interface immediately becomes available for use in
  client mode.
- If an interface later becomes available, tethering is not
  automatically started. This is consistent with what happens for
  other downstream types such as wifi and USB. Evey time one of
  those downstreams goes down, tethering is stopped and will not
  be restarted.

Test: manual
Bug: 148824036
Change-Id: Iaf85e800569f2e08c39f7ebb96f8aa34f6e53133
Merged-In: Iaf85e800569f2e08c39f7ebb96f8aa34f6e53133
(cherry picked from commit e54c92e565)
This commit is contained in:
Treehugger Robot
2020-03-19 15:23:45 +00:00
committed by Lorenzo Colitti
parent a7aededa7d
commit 41c81248e8
1 changed files with 9 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
packages/Tethering/src/com/android/server/connectivity/tethering/Tethering.java
View File

@@ -641,21 +641,21 @@ public class Tethering {
mEthernetIfaceRequest = em.requestTetheredInterface(mExecutor, mEthernetCallback); mEthernetIfaceRequest = em.requestTetheredInterface(mExecutor, mEthernetCallback);
} else { } else {
stopEthernetTetheringLocked(); stopEthernetTetheringLocked();
if (mEthernetCallback != null) {
mEthernetIfaceRequest.release();
mEthernetCallback = null;
mEthernetIfaceRequest = null;
}
} }
} }
return TETHER_ERROR_NO_ERROR; return TETHER_ERROR_NO_ERROR;
} }
private void stopEthernetTetheringLocked() { private void stopEthernetTetheringLocked() {
if (mConfiguredEthernetIface == null) return; if (mConfiguredEthernetIface != null) {
changeInterfaceState(mConfiguredEthernetIface, IpServer.STATE_AVAILABLE); stopTrackingInterfaceLocked(mConfiguredEthernetIface);
stopTrackingInterfaceLocked(mConfiguredEthernetIface); mConfiguredEthernetIface = null;
mConfiguredEthernetIface = null; }
if (mEthernetCallback != null) {
mEthernetIfaceRequest.release();
mEthernetCallback = null;
mEthernetIfaceRequest = null;
}
} }
private class EthernetCallback implements EthernetManager.TetheredInterfaceCallback { private class EthernetCallback implements EthernetManager.TetheredInterfaceCallback {