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/*
* Copyright (C) 2021 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 com.android.net.module.util.netlink;
import static com.android.net.module.util.netlink.RtNetlinkAddressMessage.IFA_FLAGS;
import static com.android.net.module.util.netlink.RtNetlinkLinkMessage.IFLA_ADDRESS;
import static com.android.net.module.util.netlink.RtNetlinkLinkMessage.IFLA_IFNAME;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
import android.net.MacAddress;
import androidx.test.filters.SmallTest;
import androidx.test.runner.AndroidJUnit4;
import org.junit.Test;
import org.junit.runner.RunWith;
@RunWith(AndroidJUnit4.class)
@SmallTest
public class StructNlAttrTest {
private static final MacAddress TEST_MAC_ADDRESS = MacAddress.fromString("00:11:22:33:44:55");
private static final String TEST_INTERFACE_NAME = "wlan0";
private static final int TEST_ADDR_FLAGS = 0x80;
@Test
public void testGetValueAsMacAddress() {
final StructNlAttr attr1 = new StructNlAttr(IFLA_ADDRESS, TEST_MAC_ADDRESS);
final MacAddress address1 = attr1.getValueAsMacAddress();
assertEquals(address1, TEST_MAC_ADDRESS);
// Invalid mac address byte array.
final byte[] array = new byte[] {
(byte) 0x00, (byte) 0x11, (byte) 0x22, (byte) 0x33,
(byte) 0x44, (byte) 0x55, (byte) 0x66,
};
final StructNlAttr attr2 = new StructNlAttr(IFLA_ADDRESS, array);
final MacAddress address2 = attr2.getValueAsMacAddress();
assertNull(address2);
}
@Test
public void testGetValueAsString() {
final StructNlAttr attr1 = new StructNlAttr(IFLA_IFNAME, TEST_INTERFACE_NAME);
final String str1 = attr1.getValueAsString();
assertEquals(str1, TEST_INTERFACE_NAME);
final byte[] array = new byte[] {
(byte) 0x77, (byte) 0x6c, (byte) 0x61, (byte) 0x6E, (byte) 0x30, (byte) 0x00,
};
final StructNlAttr attr2 = new StructNlAttr(IFLA_IFNAME, array);
final String str2 = attr2.getValueAsString();
assertEquals(str2, TEST_INTERFACE_NAME);
}
@Test
public void testGetValueAsIntger() {
final StructNlAttr attr1 = new StructNlAttr(IFA_FLAGS, TEST_ADDR_FLAGS);
final Integer integer1 = attr1.getValueAsInteger();
final int int1 = attr1.getValueAsInt(0x08 /* default value */);
assertEquals(integer1, new Integer(TEST_ADDR_FLAGS));
assertEquals(int1, TEST_ADDR_FLAGS);
// Malformed attribute.
final byte[] malformed_int = new byte[] { (byte) 0x0, (byte) 0x0, (byte) 0x80, };
final StructNlAttr attr2 = new StructNlAttr(IFA_FLAGS, malformed_int);
final Integer integer2 = attr2.getValueAsInteger();
final int int2 = attr2.getValueAsInt(0x08 /* default value */);
assertNull(integer2);
assertEquals(int2, 0x08 /* default value */);
// Null attribute value.
final byte[] null_int = null;
final StructNlAttr attr3 = new StructNlAttr(IFA_FLAGS, null_int);
final Integer integer3 = attr3.getValueAsInteger();
final int int3 = attr3.getValueAsInt(0x08 /* default value */);
assertNull(integer3);
assertEquals(int3, 0x08 /* default value */);
}
}
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