Support IPv6 Identification

This commit:
- Support decoding IPv6 Identification payload
- Support constructing and encoding IPv6 Identification payload
- Override equals() and hashCode()

Bug: 122731153
Test: FrameworksIkeTests IkeIdPayloadTest
Change-Id: Ie367ea9111f1c184838d3fdd4fa852f188f525d2

1 files changed, 34 insertions, 0 deletions

diff --git a/tests/iketests/src/java/com/android/ike/ikev2/message/IkeIdPayloadTest.java b/tests/iketests/src/java/com/android/ike/ikev2/message/IkeIdPayloadTest.java
index 849393cb..893857a8 100644
--- a/tests/iketests/src/java/com/android/ike/ikev2/message/IkeIdPayloadTest.java
+++ b/tests/iketests/src/java/com/android/ike/ikev2/message/IkeIdPayloadTest.java
@@ -22,11 +22,13 @@ import static org.junit.Assert.fail;
 
 import com.android.ike.ikev2.IkeIdentification;
 import com.android.ike.ikev2.IkeIdentification.IkeIpv4AddrIdentification;
+import com.android.ike.ikev2.IkeIdentification.IkeIpv6AddrIdentification;
 import com.android.ike.ikev2.exceptions.AuthenticationFailedException;
 
 import org.junit.Test;
 
 import java.net.Inet4Address;
+import java.net.Inet6Address;
 import java.nio.ByteBuffer;
 
 public final class IkeIdPayloadTest {
@@ -36,6 +38,12 @@ public final class IkeIdPayloadTest {
     private static final String IPV4_ADDR_ID_PAYLOAD_RESPONDER_BODY_HEX_STRING = "01000000c0000264";
     private static final String IPV4_ADDR_STRING = "192.0.2.100";
 
+    private static final String IPV6_ADDR_ID_PAYLOAD_RESPONDER_HEX_STRING =
+            "27000018050000000000200100000db80000000000000001";
+    private static final String IPV6_ADDR_ID_PAYLOAD_RESPONDER_BODY_HEX_STRING =
+            "050000000000200100000db80000000000000001";
+    private static final String IPV6_ADDR_STRING = "0:2001:0:db8::1";
+
     private static final int ID_TYPE_OFFSET = 0;
 
     @Test
@@ -52,6 +60,19 @@ public final class IkeIdPayloadTest {
     }
 
     @Test
+    public void testDecodeIpv6AddrIdPayload() throws Exception {
+        byte[] inputPacket =
+                TestUtils.hexStringToByteArray(IPV6_ADDR_ID_PAYLOAD_RESPONDER_BODY_HEX_STRING);
+        IkeIdPayload payload = new IkeIdPayload(false, inputPacket, false);
+
+        assertEquals(IkePayload.PAYLOAD_TYPE_ID_RESPONDER, payload.payloadType);
+        assertEquals(IkeIdentification.ID_TYPE_IPV6_ADDR, payload.ikeId.idType);
+        IkeIpv6AddrIdentification ikeId = (IkeIpv6AddrIdentification) payload.ikeId;
+        Inet6Address expectedAddr = (Inet6Address) Inet6Address.getByName(IPV6_ADDR_STRING);
+        assertEquals(expectedAddr, ikeId.ipv6Address);
+    }
+
+    @Test
     public void testDecodeUnsupportedIdType() throws Exception {
         byte[] inputPacket =
                 TestUtils.hexStringToByteArray(IPV4_ADDR_ID_PAYLOAD_RESPONDER_BODY_HEX_STRING);
@@ -76,4 +97,17 @@ public final class IkeIdPayloadTest {
                 TestUtils.hexStringToByteArray(IPV4_ADDR_ID_PAYLOAD_RESPONDER_HEX_STRING);
         assertArrayEquals(expectedBytes, inputBuffer.array());
     }
+
+    @Test
+    public void testConstructAndEncodeIpv6AddrIdPayload() throws Exception {
+        Inet6Address ipv6Address = (Inet6Address) Inet6Address.getByName(IPV6_ADDR_STRING);
+        IkeIdPayload payload = new IkeIdPayload(false, new IkeIpv6AddrIdentification(ipv6Address));
+
+        ByteBuffer inputBuffer = ByteBuffer.allocate(payload.getPayloadLength());
+        payload.encodeToByteBuffer(IkePayload.PAYLOAD_TYPE_AUTH, inputBuffer);
+
+        byte[] expectedBytes =
+                TestUtils.hexStringToByteArray(IPV6_ADDR_ID_PAYLOAD_RESPONDER_HEX_STRING);
+        assertArrayEquals(expectedBytes, inputBuffer.array());
+    }
 }