| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.net.netlink; |
| |
| import static android.net.netlink.StructNlMsgHdr.NLM_F_REQUEST; |
| import static android.net.netlink.StructNlMsgHdr.NLM_F_ACK; |
| import static android.net.netlink.StructNlMsgHdr.NLM_F_REPLACE; |
| |
| import android.net.netlink.NetlinkConstants; |
| import android.net.netlink.NetlinkErrorMessage; |
| import android.net.netlink.NetlinkMessage; |
| import android.net.netlink.StructNlMsgErr; |
| import android.test.suitebuilder.annotation.SmallTest; |
| import android.util.Log; |
| import java.nio.ByteBuffer; |
| import java.nio.ByteOrder; |
| import junit.framework.TestCase; |
| import libcore.util.HexEncoding; |
| |
| |
| public class NetlinkErrorMessageTest extends TestCase { |
| private final String TAG = "NetlinkErrorMessageTest"; |
| |
| // Hexadecimal representation of packet capture. |
| public static final String NLM_ERROR_OK_HEX = |
| // struct nlmsghdr |
| "24000000" + // length = 36 |
| "0200" + // type = 2 (NLMSG_ERROR) |
| "0000" + // flags |
| "26350000" + // seqno |
| "64100000" + // pid = userspace process |
| // error integer |
| "00000000" + // "errno" (0 == OK) |
| // struct nlmsghdr |
| "30000000" + // length (48) of original request |
| "1C00" + // type = 28 (RTM_NEWNEIGH) |
| "0501" + // flags (NLM_F_REQUEST | NLM_F_ACK | NLM_F_REPLACE) |
| "26350000" + // seqno |
| "00000000"; // pid = kernel |
| public static final byte[] NLM_ERROR_OK = |
| HexEncoding.decode(NLM_ERROR_OK_HEX.toCharArray(), false); |
| |
| @SmallTest |
| public void testParseNlmErrorOk() { |
| final ByteBuffer byteBuffer = ByteBuffer.wrap(NLM_ERROR_OK); |
| byteBuffer.order(ByteOrder.LITTLE_ENDIAN); // For testing. |
| final NetlinkMessage msg = NetlinkMessage.parse(byteBuffer); |
| assertNotNull(msg); |
| assertTrue(msg instanceof NetlinkErrorMessage); |
| final NetlinkErrorMessage errorMsg = (NetlinkErrorMessage) msg; |
| |
| final StructNlMsgHdr hdr = errorMsg.getHeader(); |
| assertNotNull(hdr); |
| assertEquals(36, hdr.nlmsg_len); |
| assertEquals(NetlinkConstants.NLMSG_ERROR, hdr.nlmsg_type); |
| assertEquals(0, hdr.nlmsg_flags); |
| assertEquals(13606, hdr.nlmsg_seq); |
| assertEquals(4196, hdr.nlmsg_pid); |
| |
| final StructNlMsgErr err = errorMsg.getNlMsgError(); |
| assertNotNull(err); |
| assertEquals(0, err.error); |
| assertNotNull(err.msg); |
| assertEquals(48, err.msg.nlmsg_len); |
| assertEquals(NetlinkConstants.RTM_NEWNEIGH, err.msg.nlmsg_type); |
| assertEquals((NLM_F_REQUEST | NLM_F_ACK | NLM_F_REPLACE), err.msg.nlmsg_flags); |
| assertEquals(13606, err.msg.nlmsg_seq); |
| assertEquals(0, err.msg.nlmsg_pid); |
| } |
| } |