1 files changed, 62 insertions, 0 deletions
diff --git a/src/android/net/dhcp/DhcpInformPacket.java b/src/android/net/dhcp/DhcpInformPacket.java
new file mode 100644
index 0000000..7a83466
--- /dev/null
+++ b/src/android/net/dhcp/DhcpInformPacket.java
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2010 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.dhcp;
+
+import java.net.Inet4Address;
+import java.nio.ByteBuffer;
+
+/**
+ * This class implements the (unused) DHCP-INFORM packet.
+ */
+class DhcpInformPacket extends DhcpPacket {
+    /**
+     * Generates an INFORM packet with the specified parameters.
+     */
+    DhcpInformPacket(int transId, short secs, Inet4Address clientIp, Inet4Address yourIp,
+                     Inet4Address nextIp, Inet4Address relayIp,
+                     byte[] clientMac) {
+        super(transId, secs, clientIp, yourIp, nextIp, relayIp, clientMac, false);
+    }
+
+    public String toString() {
+        String s = super.toString();
+        return s + " INFORM";
+    }
+
+    /**
+     * Builds an INFORM packet.
+     */
+    public ByteBuffer buildPacket(int encap, short destUdp, short srcUdp) {
+        ByteBuffer result = ByteBuffer.allocate(MAX_LENGTH);
+
+        fillInPacket(encap, mClientIp, mYourIp, destUdp, srcUdp, result,
+            DHCP_BOOTREQUEST, false);
+        result.flip();
+        return result;
+    }
+
+    /**
+     * Adds additional parameters to the INFORM packet.
+     */
+    void finishPacket(ByteBuffer buffer) {
+        addTlv(buffer, DHCP_MESSAGE_TYPE, DHCP_MESSAGE_TYPE_INFORM);
+        addTlv(buffer, DHCP_CLIENT_IDENTIFIER, getClientId());
+        addCommonClientTlvs(buffer);
+        addTlv(buffer, DHCP_PARAMETER_LIST, mRequestedParams);
+        addTlvEnd(buffer);
+    }
+}