Move IP config from WifiConfiguration to IpConfiguration.

This is so that Ethernet can use it in the future.

Bug: 7606609
Bug: 8687763

Change-Id: I5d1189682b13f1088848809604690648d8d9ecca

core/java/android/net/IpConfiguration.java

@@ -0,0 +1,151 @@
+/*
+ * Copyright (C) 2014 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.net.LinkProperties;
+import android.os.Parcel;
+import android.os.Parcelable;
+
+import java.util.Objects;
+
+/**
+ * A class representing a configured network.
+ * @hide
+ */
+public class IpConfiguration implements Parcelable {
+    private static final String TAG = "IpConfiguration";
+
+    public enum IpAssignment {
+        /* Use statically configured IP settings. Configuration can be accessed
+         * with linkProperties */
+        STATIC,
+        /* Use dynamically configured IP settigns */
+        DHCP,
+        /* no IP details are assigned, this is used to indicate
+         * that any existing IP settings should be retained */
+        UNASSIGNED
+    }
+
+    public IpAssignment ipAssignment;
+
+    public enum ProxySettings {
+        /* No proxy is to be used. Any existing proxy settings
+         * should be cleared. */
+        NONE,
+        /* Use statically configured proxy. Configuration can be accessed
+         * with linkProperties */
+        STATIC,
+        /* no proxy details are assigned, this is used to indicate
+         * that any existing proxy settings should be retained */
+        UNASSIGNED,
+        /* Use a Pac based proxy.
+         */
+        PAC
+    }
+
+    public ProxySettings proxySettings;
+
+    public LinkProperties linkProperties;
+
+    public IpConfiguration(IpConfiguration source) {
+        if (source != null) {
+            ipAssignment = source.ipAssignment;
+            proxySettings = source.proxySettings;
+            linkProperties = new LinkProperties(source.linkProperties);
+        } else {
+            ipAssignment = IpAssignment.UNASSIGNED;
+            proxySettings = ProxySettings.UNASSIGNED;
+            linkProperties = new LinkProperties();
+        }
+    }
+
+    public IpConfiguration() {
+         this(null);
+    }
+
+    public IpConfiguration(IpAssignment ipAssignment,
+                           ProxySettings proxySettings,
+                           LinkProperties linkProperties) {
+        this.ipAssignment = ipAssignment;
+        this.proxySettings = proxySettings;
+        this.linkProperties = new LinkProperties(linkProperties);
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder sbuf = new StringBuilder();
+        sbuf.append("IP assignment: " + ipAssignment.toString());
+        sbuf.append("\n");
+        sbuf.append("Proxy settings: " + proxySettings.toString());
+        sbuf.append("\n");
+        sbuf.append(linkProperties.toString());
+        sbuf.append("\n");
+
+        return sbuf.toString();
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (o == this) {
+            return true;
+        }
+
+        if (!(o instanceof IpConfiguration)) {
+            return false;
+        }
+
+        IpConfiguration other = (IpConfiguration) o;
+        return this.ipAssignment == other.ipAssignment &&
+                this.proxySettings == other.proxySettings &&
+                Objects.equals(this.linkProperties, other.linkProperties);
+    }
+
+    @Override
+    public int hashCode() {
+        return 13 + (linkProperties != null ? linkProperties.hashCode() : 0) +
+               17 * ipAssignment.ordinal() +
+               47 * proxySettings.ordinal();
+    }
+
+    /** Implement the Parcelable interface */
+    public int describeContents() {
+        return 0;
+    }
+
+    /** Implement the Parcelable interface  */
+    public void writeToParcel(Parcel dest, int flags) {
+        dest.writeString(ipAssignment.name());
+        dest.writeString(proxySettings.name());
+        dest.writeParcelable(linkProperties, flags);
+    }
+
+    /** Implement the Parcelable interface */
+    public static final Creator<IpConfiguration> CREATOR =
+        new Creator<IpConfiguration>() {
+            public IpConfiguration createFromParcel(Parcel in) {
+                IpConfiguration config = new IpConfiguration();
+                config.ipAssignment = IpAssignment.valueOf(in.readString());
+                config.proxySettings = ProxySettings.valueOf(in.readString());
+                config.linkProperties = in.readParcelable(null);
+                return config;
+            }
+
+            public IpConfiguration[] newArray(int size) {
+                return new IpConfiguration[size];
+            }
+        };
+}