Move IpClient to NetworkStack

Test: atest FrameworksNetTests NetworkStackTests
Bug: b/112869080
Change-Id: I7d00848c052382cd1b6ce458868bed6a1e9e8ec5

1 files changed, 61 insertions, 0 deletions

diff --git a/src/android/net/dhcp/DhcpDeclinePacket.java b/src/android/net/dhcp/DhcpDeclinePacket.java
new file mode 100644
index 0000000..7ecdea7
--- /dev/null
+++ b/src/android/net/dhcp/DhcpDeclinePacket.java
@@ -0,0 +1,61 @@
+/*
+ * 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 DHCP-DECLINE packet.
+ */
+class DhcpDeclinePacket extends DhcpPacket {
+    /**
+     * Generates a DECLINE packet with the specified parameters.
+     */
+    DhcpDeclinePacket(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 + " DECLINE";
+    }
+
+    /**
+     * Fills in a packet with the requested DECLINE attributes.
+     */
+    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 optional parameters to the DECLINE packet.
+     */
+    void finishPacket(ByteBuffer buffer) {
+        addTlv(buffer, DHCP_MESSAGE_TYPE, DHCP_MESSAGE_TYPE_DECLINE);
+        addTlv(buffer, DHCP_CLIENT_IDENTIFIER, getClientId());
+        // RFC 2131 says we MUST NOT include our common client TLVs or the parameter request list.
+        addTlvEnd(buffer);
+    }
+}