LineageOS/android_packages_modules_Connectivity
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Add a null check to hasIPv4AddressOnInterface.

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Change-Id: Ie38505ec0a93f4060348d92db341c536b7d60ed0
This commit is contained in:
Lorenzo Colitti
2015-07-30 23:41:43 +09:00
parent 6c7a780dd6
commit 28bb16c366
2 changed files with 28 additions and 1 deletions
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3
core/java/android/net/LinkProperties.java
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@@ -667,7 +667,8 @@ public final class LinkProperties implements Parcelable {
* @return {@code true} if there is an IPv4 address, {@code false} otherwise.
*/
private boolean hasIPv4AddressOnInterface(String iface) {
return (mIfaceName.equals(iface) && hasIPv4Address()) ||
// mIfaceName can be null.
return (Objects.equals(iface, mIfaceName) && hasIPv4Address()) ||
(iface != null && mStackedLinks.containsKey(iface) &&
mStackedLinks.get(iface).hasIPv4Address());
}

26
core/tests/coretests/src/android/net/LinkPropertiesTest.java
View File

@@ -48,6 +48,11 @@ public class LinkPropertiesTest extends TestCase {
private static LinkAddress LINKADDRV6 = new LinkAddress(ADDRV6, 128);
private static LinkAddress LINKADDRV6LINKLOCAL = new LinkAddress("fe80::1/64");
// TODO: replace all calls to NetworkUtils.numericToInetAddress with calls to this method.
private InetAddress Address(String addrString) {
return NetworkUtils.numericToInetAddress(addrString);
}
public void assertLinkPropertiesEqual(LinkProperties source, LinkProperties target) {
// Check implementation of equals(), element by element.
assertTrue(source.isIdenticalInterfaceName(target));
@@ -647,5 +652,26 @@ public class LinkPropertiesTest extends TestCase {
assertTrue(v6lp.isReachable(kLinkLocalDnsWithScope));
assertTrue(v6lp.isReachable(kOnLinkDns));
assertTrue(v6lp.isReachable(DNS6));
// Check isReachable on stacked links. This requires that the source IP address be assigned
// on the interface returned by the route lookup.
LinkProperties stacked = new LinkProperties();
// Can't add a stacked link without an interface name.
stacked.setInterfaceName("v4-test0");
v6lp.addStackedLink(stacked);
InetAddress stackedAddress = Address("192.0.0.4");
LinkAddress stackedLinkAddress = new LinkAddress(stackedAddress, 32);
assertFalse(v6lp.isReachable(stackedAddress));
stacked.addLinkAddress(stackedLinkAddress);
assertFalse(v6lp.isReachable(stackedAddress));
stacked.addRoute(new RouteInfo(stackedLinkAddress));
assertTrue(stacked.isReachable(stackedAddress));
assertTrue(v6lp.isReachable(stackedAddress));
assertFalse(v6lp.isReachable(DNS1));
stacked.addRoute(new RouteInfo((IpPrefix) null, stackedAddress));
assertTrue(v6lp.isReachable(DNS1));
}
}