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diff --git a/src/android/aidl/com/android/server/thread/openthread/INsdPublisher.aidl b/src/android/aidl/com/android/server/thread/openthread/INsdPublisher.aidl
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+++ b/src/android/aidl/com/android/server/thread/openthread/INsdPublisher.aidl
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+/*
+ *    Copyright (c) 2024, The OpenThread Authors.
+ *    All rights reserved.
+ *
+ *    Redistribution and use in source and binary forms, with or without
+ *    modification, are permitted provided that the following conditions are met:
+ *    1. Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *    2. Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *    3. Neither the name of the copyright holder nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ *    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ *    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ *    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ *    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ *    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ *    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ *    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ *    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ *    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ *    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ *    POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package com.android.server.thread.openthread;
+
+import com.android.server.thread.openthread.DnsTxtAttribute;
+import com.android.server.thread.openthread.INsdStatusReceiver;
+
+/**
+ * The service which supports mDNS advertising and discovery by {@link NsdManager}.
+ */
+oneway interface INsdPublisher {
+    /**
+     * Registers an mDNS service.
+     *
+     * <p>When the hostname is set to null, register the service with the default host. Otherwise,
+     * register the servcie with the specified hostname.
+     *
+     * <p>The listenerId is an integer ID generated by the caller. It's used by the caller and
+     * the NsdPublisher service to uniquely identify a registration.
+     *
+     * @param hostname the hostname
+     * @param name the service instance name
+     * @param type the service type
+     * @param subtypeList the list of subtypes
+     * @param port the port number of the service
+     * @param txt the entries of the TXT record
+     * @param receiver the receiver of the register callback
+     * @param listenerId the listener ID of the 'unregister' opreation
+     */
+    void registerService(in @nullable String hostname,
+                        in String name,
+                        in String type,
+                        in List<String> subtypeList,
+                        int port,
+                        in List<DnsTxtAttribute> txt,
+                        in INsdStatusReceiver receiver,
+                        int listenerId);
+
+    /**
+     * Unregisters an mDNS service.
+     *
+     * <p>To unregister a previously registered service/host/key, the caller must pass in the same
+     * listener which was used when registering the service/host/key.
+     *
+     * @param receiver the receiver of the unregister callback
+     * @param listenerId the listenerId of the 'unregister' operation
+     */
+    void unregister(in INsdStatusReceiver receiver, int listenerId);
+}