From 1cb8cdaf63f970533ef80b48ff713ed7c5b120f0 Mon Sep 17 00:00:00 2001 From: Etan Cohen Date: Fri, 20 Jul 2018 16:53:00 -0700 Subject: [RTT] Add NPE checks for invalid MAC addresses from Aware RTT requests for Aware peers may use PeerHandles. The RTT service queries the Aware service for their corresponding MAC addresses. In some corner cases, e.g. the Aware peer just disappeared, a null MAC address may be returned. This was not handled, resulting in an NPE. Bug: 111646773 Test: new unit test added, passes Change-Id: I7d7c37322848fe7e7dd4f9f412f1e1339321e9a8 --- .../com/android/server/wifi/rtt/RttServiceImplTest.java | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) (limited to 'tests/wifitests') diff --git a/tests/wifitests/src/com/android/server/wifi/rtt/RttServiceImplTest.java b/tests/wifitests/src/com/android/server/wifi/rtt/RttServiceImplTest.java index d1c1b028b..e1f35239f 100644 --- a/tests/wifitests/src/com/android/server/wifi/rtt/RttServiceImplTest.java +++ b/tests/wifitests/src/com/android/server/wifi/rtt/RttServiceImplTest.java @@ -305,13 +305,16 @@ public class RttServiceImplTest { RangingRequest request = RttTestUtils.getDummyRangingRequest((byte) 0xA); PeerHandle peerHandle1 = new PeerHandle(1022); PeerHandle peerHandle2 = new PeerHandle(1023); + PeerHandle peerHandle3 = new PeerHandle(1024); request.mRttPeers.add(ResponderConfig.fromWifiAwarePeerHandleWithDefaults(peerHandle1)); request.mRttPeers.add(ResponderConfig.fromWifiAwarePeerHandleWithDefaults(peerHandle2)); + request.mRttPeers.add(ResponderConfig.fromWifiAwarePeerHandleWithDefaults(peerHandle3)); Map peerHandleToMacMap = new HashMap<>(); MacAddress macAwarePeer1 = MacAddress.fromString("AA:BB:CC:DD:EE:FF"); MacAddress macAwarePeer2 = MacAddress.fromString("BB:BB:BB:EE:EE:EE"); peerHandleToMacMap.put(peerHandle1.peerId, macAwarePeer1); peerHandleToMacMap.put(peerHandle2.peerId, macAwarePeer2); + peerHandleToMacMap.put(peerHandle3.peerId, null); // bad answer from Aware (expired?) AwareTranslatePeerHandlesToMac answer = new AwareTranslatePeerHandlesToMac(mDefaultUid, peerHandleToMacMap); @@ -327,7 +330,8 @@ public class RttServiceImplTest { RangingRequest finalRequest = mRequestCaptor.getValue(); assertNotEquals("Request to native is not null", null, finalRequest); - assertEquals("Size of request", request.mRttPeers.size(), finalRequest.mRttPeers.size()); + assertEquals("Size of request", request.mRttPeers.size() - 1, + finalRequest.mRttPeers.size()); assertEquals("Aware peer 1 MAC", macAwarePeer1, finalRequest.mRttPeers.get(finalRequest.mRttPeers.size() - 2).macAddress); assertEquals("Aware peer 2 MAC", macAwarePeer2, @@ -1452,12 +1456,13 @@ public class RttServiceImplTest { Map result = new HashMap<>(); for (Integer peerId: peerIds) { - byte[] mac = mPeerIdToMacMap.get(peerId).toByteArray(); - if (mac == null) { - continue; + byte[] macBytes = null; + MacAddress macAddr = mPeerIdToMacMap.get(peerId); + if (macAddr != null) { + macBytes = macAddr.toByteArray(); } - result.put(peerId, mac); + result.put(peerId, macBytes); } try { -- cgit v1.2.3