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/*
* Copyright (C) 2008 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;
import android.os.Parcelable;
import android.os.Parcel;
import java.net.InetAddress;
import java.net.UnknownHostException;
/**
* A simple object for retrieving / setting an interfaces configuration
* @hide
*/
public class InterfaceConfiguration implements Parcelable {
public String hwAddr;
public LinkAddress addr;
public String interfaceFlags;
public InterfaceConfiguration() {
super();
}
public String toString() {
StringBuffer str = new StringBuffer();
str.append("ipddress ");
str.append((addr != null) ? addr.toString() : "NULL");
str.append(" flags ").append(interfaceFlags);
str.append(" hwaddr ").append(hwAddr);
return str.toString();
}
/**
* This function determines if the interface is up and has a valid IP
* configuration (IP address has a non zero octet).
*
* Note: It is supposed to be quick and hence should not initiate
* any network activity
*/
public boolean isActive() {
try {
if(interfaceFlags.contains("up")) {
for (byte b : addr.getAddress().getAddress()) {
if (b != 0) return true;
}
}
} catch (NullPointerException e) {
return false;
}
return false;
}
/** Implement the Parcelable interface {@hide} */
public int describeContents() {
return 0;
}
/** Implement the Parcelable interface {@hide} */
public void writeToParcel(Parcel dest, int flags) {
dest.writeString(hwAddr);
if (addr != null) {
dest.writeByte((byte)1);
dest.writeParcelable(addr, flags);
} else {
dest.writeByte((byte)0);
}
dest.writeString(interfaceFlags);
}
/** Implement the Parcelable interface {@hide} */
public static final Creator<InterfaceConfiguration> CREATOR =
new Creator<InterfaceConfiguration>() {
public InterfaceConfiguration createFromParcel(Parcel in) {
InterfaceConfiguration info = new InterfaceConfiguration();
info.hwAddr = in.readString();
if (in.readByte() == 1) {
info.addr = in.readParcelable(null);
}
info.interfaceFlags = in.readString();
return info;
}
public InterfaceConfiguration[] newArray(int size) {
return new InterfaceConfiguration[size];
}
};
}
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