LineageOS/android_packages_modules_Connectivity
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add IPv6 link-local address generation from EUI-48

Browse Source 
Add a utility method to convert an EUI-48 to an IPv6 link-local
address based on RFC 4291 (EUI-64 generation) followed by RFC 4862.

Bug: 117605977
Test: atest MacAddressTest
Merged-In: I80b683e69da6beff3b37fc345fc15aa9610d09b7
Change-Id: I80b683e69da6beff3b37fc345fc15aa9610d09b7
This commit is contained in:
Etan Cohen
2018-11-02 15:07:20 -07:00
parent 822d2b5991
commit ec1c466cb0
2 changed files with 51 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
tests/net/java/android/net/MacAddressTest.java
View File

@@ -16,6 +16,7 @@
package android.net;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.assertFalse;
@@ -24,12 +25,13 @@ import static org.junit.Assert.fail;
import android.support.test.filters.SmallTest;
import android.support.test.runner.AndroidJUnit4;
import java.util.Arrays;
import java.util.Random;
import org.junit.Test;
import org.junit.runner.RunWith;
import java.net.Inet6Address;
import java.util.Arrays;
import java.util.Random;
@SmallTest
@RunWith(AndroidJUnit4.class)
public class MacAddressTest {
@@ -252,6 +254,19 @@ public class MacAddressTest {
}
}
/**
* Tests that link-local address generation from MAC is valid.
*/
@Test
public void testLinkLocalFromMacGeneration() {
MacAddress mac = MacAddress.fromString("52:74:f2:b1:a8:7f");
byte[] inet6ll = {(byte) 0xfe, (byte) 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50, 0x74,
(byte) 0xf2, (byte) 0xff, (byte) 0xfe, (byte) 0xb1, (byte) 0xa8, 0x7f};
Inet6Address llv6 = mac.getLinkLocalIpv6FromEui48Mac();
assertTrue(llv6.isLinkLocalAddress());
assertArrayEquals(inet6ll, llv6.getAddress());
}
static byte[] toByteArray(int... in) {
byte[] out = new byte[in.length];
for (int i = 0; i < in.length; i++) {