16193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline/* 26193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline * Copyright (C) 2015 The Android Open Source Project 36193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline * 46193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline * Licensed under the Apache License, Version 2.0 (the "License"); 56193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline * you may not use this file except in compliance with the License. 66193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline * You may obtain a copy of the License at 76193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline * 86193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline * http://www.apache.org/licenses/LICENSE-2.0 96193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline * 106193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline * Unless required by applicable law or agreed to in writing, software 116193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline * distributed under the License is distributed on an "AS IS" BASIS, 126193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 136193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline * See the License for the specific language governing permissions and 146193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline * limitations under the License. 156193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline */ 166193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline 176193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Klinepackage android.net.netlink; 186193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline 1984714bffa1a58fe1f6a114ae015f8e38be46f32dErik Klineimport static android.net.netlink.NetlinkSocket.DEFAULT_RECV_BUFSIZE; 2084714bffa1a58fe1f6a114ae015f8e38be46f32dErik Klineimport static android.system.OsConstants.NETLINK_ROUTE; 214a0c5d7ef7144280fe8a209a871bbd4ef90d6368Hugo Benichiimport static org.junit.Assert.assertEquals; 224a0c5d7ef7144280fe8a209a871bbd4ef90d6368Hugo Benichiimport static org.junit.Assert.assertNotNull; 234a0c5d7ef7144280fe8a209a871bbd4ef90d6368Hugo Benichiimport static org.junit.Assert.assertTrue; 244a0c5d7ef7144280fe8a209a871bbd4ef90d6368Hugo Benichi 256193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Klineimport android.net.netlink.NetlinkSocket; 266193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Klineimport android.net.netlink.RtNetlinkNeighborMessage; 276193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Klineimport android.net.netlink.StructNdMsg; 286193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Klineimport android.net.netlink.StructNlMsgHdr; 294a0c5d7ef7144280fe8a209a871bbd4ef90d6368Hugo Benichiimport android.support.test.runner.AndroidJUnit4; 304a0c5d7ef7144280fe8a209a871bbd4ef90d6368Hugo Benichiimport android.support.test.filters.SmallTest; 316193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Klineimport android.system.ErrnoException; 326193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Klineimport android.system.NetlinkSocketAddress; 3384714bffa1a58fe1f6a114ae015f8e38be46f32dErik Klineimport android.system.Os; 346193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Klineimport android.util.Log; 3584714bffa1a58fe1f6a114ae015f8e38be46f32dErik Klineimport libcore.io.IoUtils; 364a0c5d7ef7144280fe8a209a871bbd4ef90d6368Hugo Benichi 376193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Klineimport java.io.InterruptedIOException; 3884714bffa1a58fe1f6a114ae015f8e38be46f32dErik Klineimport java.io.FileDescriptor; 396193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Klineimport java.nio.ByteBuffer; 406193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Klineimport java.nio.ByteOrder; 414a0c5d7ef7144280fe8a209a871bbd4ef90d6368Hugo Benichi 424a0c5d7ef7144280fe8a209a871bbd4ef90d6368Hugo Benichiimport org.junit.runner.RunWith; 434a0c5d7ef7144280fe8a209a871bbd4ef90d6368Hugo Benichiimport org.junit.Test; 446193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline 456193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline 464a0c5d7ef7144280fe8a209a871bbd4ef90d6368Hugo Benichi@RunWith(AndroidJUnit4.class) 474a0c5d7ef7144280fe8a209a871bbd4ef90d6368Hugo Benichi@SmallTest 484a0c5d7ef7144280fe8a209a871bbd4ef90d6368Hugo Benichipublic class NetlinkSocketTest { 496193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline private final String TAG = "NetlinkSocketTest"; 506193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline 514a0c5d7ef7144280fe8a209a871bbd4ef90d6368Hugo Benichi @Test 526193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline public void testBasicWorkingGetNeighborsQuery() throws Exception { 5384714bffa1a58fe1f6a114ae015f8e38be46f32dErik Kline final FileDescriptor fd = NetlinkSocket.forProto(NETLINK_ROUTE); 5484714bffa1a58fe1f6a114ae015f8e38be46f32dErik Kline assertNotNull(fd); 556193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline 5684714bffa1a58fe1f6a114ae015f8e38be46f32dErik Kline NetlinkSocket.connectToKernel(fd); 576193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline 5884714bffa1a58fe1f6a114ae015f8e38be46f32dErik Kline final NetlinkSocketAddress localAddr = (NetlinkSocketAddress) Os.getsockname(fd); 596193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline assertNotNull(localAddr); 606193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline assertEquals(0, localAddr.getGroupsMask()); 616193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline assertTrue(0 != localAddr.getPortId()); 626193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline 636193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline final int TEST_SEQNO = 5; 6484714bffa1a58fe1f6a114ae015f8e38be46f32dErik Kline final byte[] req = RtNetlinkNeighborMessage.newGetNeighborsRequest(TEST_SEQNO); 6584714bffa1a58fe1f6a114ae015f8e38be46f32dErik Kline assertNotNull(req); 666193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline 676193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline final long TIMEOUT = 500; 6884714bffa1a58fe1f6a114ae015f8e38be46f32dErik Kline assertEquals(req.length, NetlinkSocket.sendMessage(fd, req, 0, req.length, TIMEOUT)); 696193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline 706193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline int neighMessageCount = 0; 716193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline int doneMessageCount = 0; 726193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline 736193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline while (doneMessageCount == 0) { 7484714bffa1a58fe1f6a114ae015f8e38be46f32dErik Kline ByteBuffer response = NetlinkSocket.recvMessage(fd, DEFAULT_RECV_BUFSIZE, TIMEOUT); 756193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline assertNotNull(response); 766193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline assertTrue(StructNlMsgHdr.STRUCT_SIZE <= response.limit()); 776193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline assertEquals(0, response.position()); 786193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline assertEquals(ByteOrder.nativeOrder(), response.order()); 796193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline 806193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline // Verify the messages at least appears minimally reasonable. 816193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline while (response.remaining() > 0) { 826193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline final NetlinkMessage msg = NetlinkMessage.parse(response); 836193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline assertNotNull(msg); 846193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline final StructNlMsgHdr hdr = msg.getHeader(); 856193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline assertNotNull(hdr); 866193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline 876193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline if (hdr.nlmsg_type == NetlinkConstants.NLMSG_DONE) { 886193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline doneMessageCount++; 896193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline continue; 906193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline } 916193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline 926193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline assertEquals(NetlinkConstants.RTM_NEWNEIGH, hdr.nlmsg_type); 936193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline assertTrue(msg instanceof RtNetlinkNeighborMessage); 946193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline assertTrue((hdr.nlmsg_flags & StructNlMsgHdr.NLM_F_MULTI) != 0); 956193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline assertEquals(TEST_SEQNO, hdr.nlmsg_seq); 966193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline assertEquals(localAddr.getPortId(), hdr.nlmsg_pid); 976193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline 986193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline neighMessageCount++; 996193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline } 1006193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline } 1016193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline 1026193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline assertEquals(1, doneMessageCount); 1036193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline // TODO: make sure this test passes sanely in airplane mode. 1046193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline assertTrue(neighMessageCount > 0); 1056193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline 10684714bffa1a58fe1f6a114ae015f8e38be46f32dErik Kline IoUtils.closeQuietly(fd); 107abd3142dcae02026689b939c363329b822b7cc0aErik Kline } 1086193aa3305bc2aa5b7f0a983f4b08c99065cfb82Erik Kline} 109