1 files changed, 241 insertions, 0 deletions
diff --git a/core/java/android/net/DhcpResults.java b/core/java/android/net/DhcpResults.java
new file mode 100644
index 0000000..23297df
--- /dev/null
+++ b/core/java/android/net/DhcpResults.java
@@ -0,0 +1,241 @@
+/*
+ * Copyright (C) 2012 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 android.util.Log;
+
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Iterator;
+
+/**
+ * A simple object for retrieving the results of a DHCP request.
+ * Optimized (attempted) for that jni interface
+ * TODO - remove when DhcpInfo is deprecated.  Move the remaining api to LinkProperties.
+ * @hide
+ */
+public class DhcpResults implements Parcelable {
+    private static final String TAG = "DhcpResults";
+
+    public final LinkProperties linkProperties;
+
+    public InetAddress serverAddress;
+
+    /**
+     * Vendor specific information (from RFC 2132).
+     */
+    public String vendorInfo;
+
+    public int leaseDuration;
+
+    public DhcpResults() {
+        linkProperties = new LinkProperties();
+    }
+
+    /** copy constructor */
+    public DhcpResults(DhcpResults source) {
+        if (source != null) {
+            linkProperties = new LinkProperties(source.linkProperties);
+            serverAddress = source.serverAddress;
+            leaseDuration = source.leaseDuration;
+            vendorInfo = source.vendorInfo;
+        } else {
+            linkProperties = new LinkProperties();
+        }
+    }
+
+    public DhcpResults(LinkProperties lp) {
+        linkProperties = new LinkProperties(lp);
+    }
+
+    /**
+     * Updates the DHCP fields that need to be retained from
+     * original DHCP request if the current renewal shows them
+     * being empty.
+     */
+    public void updateFromDhcpRequest(DhcpResults orig) {
+        if (orig == null || orig.linkProperties == null) return;
+        if (linkProperties.getRoutes().size() == 0) {
+            for (RouteInfo r : orig.linkProperties.getRoutes()) linkProperties.addRoute(r);
+        }
+        if (linkProperties.getDnses().size() == 0) {
+            for (InetAddress d : orig.linkProperties.getDnses()) linkProperties.addDns(d);
+        }
+    }
+
+    /**
+     * Test if this DHCP lease includes vendor hint that network link is
+     * metered, and sensitive to heavy data transfers.
+     */
+    public boolean hasMeteredHint() {
+        if (vendorInfo != null) {
+            return vendorInfo.contains("ANDROID_METERED");
+        } else {
+            return false;
+        }
+    }
+
+    public void clear() {
+        linkProperties.clear();
+        serverAddress = null;
+        vendorInfo = null;
+        leaseDuration = 0;
+    }
+
+    @Override
+    public String toString() {
+        StringBuffer str = new StringBuffer(linkProperties.toString());
+
+        str.append(" DHCP server ").append(serverAddress);
+        str.append(" Vendor info ").append(vendorInfo);
+        str.append(" lease ").append(leaseDuration).append(" seconds");
+
+        return str.toString();
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) return true;
+
+        if (!(obj instanceof DhcpResults)) return false;
+
+        DhcpResults target = (DhcpResults)obj;
+
+        if (linkProperties == null) {
+            if (target.linkProperties != null) return false;
+        } else if (!linkProperties.equals(target.linkProperties)) return false;
+        if (serverAddress == null) {
+            if (target.serverAddress != null) return false;
+        } else if (!serverAddress.equals(target.serverAddress)) return false;
+        if (vendorInfo == null) {
+            if (target.vendorInfo != null) return false;
+        } else if (!vendorInfo.equals(target.vendorInfo)) return false;
+        if (leaseDuration != target.leaseDuration) return false;
+
+        return true;
+    }
+
+    /** Implement the Parcelable interface */
+    public int describeContents() {
+        return 0;
+    }
+
+    /** Implement the Parcelable interface */
+    public void writeToParcel(Parcel dest, int flags) {
+        linkProperties.writeToParcel(dest, flags);
+
+        dest.writeInt(leaseDuration);
+
+        if (serverAddress != null) {
+            dest.writeByte((byte)1);
+            dest.writeByteArray(serverAddress.getAddress());
+        } else {
+            dest.writeByte((byte)0);
+        }
+
+        dest.writeString(vendorInfo);
+    }
+
+    /** Implement the Parcelable interface */
+    public static final Creator<DhcpResults> CREATOR =
+        new Creator<DhcpResults>() {
+            public DhcpResults createFromParcel(Parcel in) {
+                DhcpResults prop = new DhcpResults((LinkProperties)in.readParcelable(null));
+
+                prop.leaseDuration = in.readInt();
+
+                if (in.readByte() == 1) {
+                    try {
+                        prop.serverAddress = InetAddress.getByAddress(in.createByteArray());
+                    } catch (UnknownHostException e) {}
+                }
+
+                prop.vendorInfo = in.readString();
+
+                return prop;
+            }
+
+            public DhcpResults[] newArray(int size) {
+                return new DhcpResults[size];
+            }
+        };
+
+    // Utils for jni population - false on success
+    public void setInterfaceName(String interfaceName) {
+        linkProperties.setInterfaceName(interfaceName);
+    }
+
+    public boolean addLinkAddress(String addrString, int prefixLength) {
+        InetAddress addr;
+        try {
+            addr = NetworkUtils.numericToInetAddress(addrString);
+        } catch (IllegalArgumentException e) {
+            Log.e(TAG, "addLinkAddress failed with addrString " + addrString);
+            return true;
+        }
+
+        LinkAddress linkAddress = new LinkAddress(addr, prefixLength);
+        linkProperties.addLinkAddress(linkAddress);
+
+        RouteInfo routeInfo = new RouteInfo(linkAddress);
+        linkProperties.addRoute(routeInfo);
+        return false;
+    }
+
+    public boolean addGateway(String addrString) {
+        try {
+            linkProperties.addRoute(new RouteInfo(NetworkUtils.numericToInetAddress(addrString)));
+        } catch (IllegalArgumentException e) {
+            Log.e(TAG, "addGateway failed with addrString " + addrString);
+            return true;
+        }
+        return false;
+    }
+
+    public boolean addDns(String addrString) {
+        try {
+            linkProperties.addDns(NetworkUtils.numericToInetAddress(addrString));
+        } catch (IllegalArgumentException e) {
+            Log.e(TAG, "addDns failed with addrString " + addrString);
+            return true;
+        }
+        return false;
+    }
+
+    public boolean setServerAddress(String addrString) {
+        try {
+            serverAddress = NetworkUtils.numericToInetAddress(addrString);
+        } catch (IllegalArgumentException e) {
+            Log.e(TAG, "setServerAddress failed with addrString " + addrString);
+            return true;
+        }
+        return false;
+    }
+
+    public void setLeaseDuration(int duration) {
+        leaseDuration = duration;
+    }
+
+    public void setVendorInfo(String info) {
+        vendorInfo = info;
+    }
+
+}