Crash the network or desktop process when an unknown IPC message is received.

remoting/host/daemon_process.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "remoting/host/daemon_process.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/file_util.h"
@@ skipping 80 matching lines @@
     IPC_MESSAGE_HANDLER(ChromotingNetworkDaemonMsg_ClientDisconnected,
                         OnClientDisconnected)
     IPC_MESSAGE_HANDLER(ChromotingNetworkDaemonMsg_ClientRouteChange,
                         OnClientRouteChange)
     IPC_MESSAGE_HANDLER(ChromotingNetworkDaemonMsg_HostStarted,
                         OnHostStarted)
     IPC_MESSAGE_HANDLER(ChromotingNetworkDaemonMsg_HostShutdown,
                         OnHostShutdown)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
+
+  if (!handled) {
+    LOG(ERROR) << "Received unexpected IPC type: " << message.type();
+    CrashNetworkProcess(FROM_HERE);
+  }
+
   return handled;
 }
 
 void DaemonProcess::OnPermanentError() {
   DCHECK(caller_task_runner()->BelongsToCurrentThread());
   Stop();
 }
 
 void DaemonProcess::CloseDesktopSession(int terminal_id) {
   DCHECK(caller_task_runner()->BelongsToCurrentThread());
@@ skipping 185 matching lines @@
 }
 
 void DaemonProcess::DeleteAllDesktopSessions() {
   while (!desktop_sessions_.empty()) {
     delete desktop_sessions_.front();
     desktop_sessions_.pop_front();
   }
 }
 
 }  // namespace remoting