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diff --git a/hicn-light/src/config/controlState.h b/hicn-light/src/config/controlState.h
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+++ b/hicn-light/src/config/controlState.h
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+/*
+ * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * 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.
+ */
+
+/**
+ * @file controlState.h
+ * @brief A control program for hicn-light using CLI commands
+ *
+ * Implements the state machine for the control program.  It takes a "writeRead"
+ * function as part of the constructor.  This abstracts out the backend.  It
+ * could be a Portal from hicnLightControl program down to the forwarder or it
+ * could be an internal function within hicn-light.
+ *
+ */
+
+#ifndef control_h
+#define control_h
+
+#include <parc/algol/parc_List.h>
+#include <src/config/commandParser.h>
+
+#include <src/utils/commands.h>
+
+struct controller_state;
+typedef struct controller_state ControlState;
+
+/**
+ * controlState_Create
+ *
+ * Creates the global state for the Control program.  The user provides the
+ * writeRead function for sending and receiving the message wrapping command
+ * arguments.  For configuration file inside hicn-light, it would make direct
+ * calls to Configuration -> Dispatcher.
+ *
+ * @param [in] userdata A closure passed back to the user when calling
+ * writeRead.
+ * @param [in] writeRead The function to write then read configuration messages
+ * to hicn-light
+ *
+ * @return non-null The control state
+ *
+ * Example:
+ * @code
+ * <#example#>
+ * @endcode
+ */
+
+ControlState *controlState_Create(
+    void *userdata,
+    struct iovec *(*writeRead)(ControlState *state, struct iovec *msg),
+    bool openControllerConnetion);
+
+/**
+ * Destroys the control state, closing all network connections
+ *
+ * <#Paragraphs Of Explanation#>
+ *
+ * @param [<#in out in,out#>] <#name#> <#description#>
+ *
+ * @return <#value#> <#explanation#>
+ *
+ * Example:
+ * @code
+ * <#example#>
+ * @endcode
+ */
+void controlState_Destroy(ControlState **statePtr);
+
+/**
+ * Registers a CommandOps with the system.
+ *
+ * Each command has its complete command prefix in the "command" field.
+ * RegisterCommand will put these command prefixes in to a tree and then match
+ * what a user types against the longest-matching prefix in the tree.  If
+ * there's a match, it will call the "execute" function.
+ *
+ * @param [in] state An allocated ControlState
+ * @param [in] command The command to register with the system
+ *
+ * Example:
+ * @code
+ *      static CommandReturn
+ *      control_Root_Execute(CommandParser *parser, CommandOps *ops, PARCList
+ * *args)
+ *      {
+ *          printf("Root Command\n");
+ *          return CommandReturn_Success;
+ *      }
+ *
+ *      static CommandReturn
+ *      control_FooBar_Execute(CommandParser *parser, CommandOps *ops, PARCList
+ * *args)
+ *      {
+ *          printf("Foo Bar Command\n");
+ *          return CommandReturn_Success;
+ *      }
+ *
+ *      const CommandOps control_Root = {
+ *      .command = "", // empty string for root
+ *      .init    = NULL,
+ *      .execute = control_Root_Execute
+ *      };
+ *
+ *      const CommandOps control_FooBar = {
+ *      .command = "foo bar", // empty string for root
+ *      .init    = NULL,
+ *      .execute = control_FooBar_Execute
+ *      };
+ *
+ *   void startup(void)
+ *   {
+ *      ControlState *state = controlState_Create("happy", "day");
+ *      controlState_RegisterCommand(state, control_FooBar);
+ *      controlState_RegisterCommand(state, control_Root);
+ *
+ *      // this executes "root"
+ *      controlState_DispatchCommand(state, "foo");
+ *      controlState_Destroy(&state);
+ *  }
+ * @endcode
+ */
+void controlState_RegisterCommand(ControlState *state, CommandOps *command);
+
+/**
+ * Performs a longest-matching prefix of the args to the command tree
+ *
+ * The command tree is created with controlState_RegisterCommand.
+ *
+ * @param [in] state The allocated ControlState
+ * @param [in] args  Each command_line word parsed to the ordered list
+ *
+ * @return CommandReturn_Success the command was successful
+ * @return CommandReturn_Failure the command failed or was not found
+ * @return CommandReturn_Exit the command indicates that the interactive mode
+ * should exit
+ *
+ * Example:
+ * @code
+ * <#example#>
+ * @endcode
+ */
+CommandReturn controlState_DispatchCommand(ControlState *state, PARCList *args);
+
+/**
+ * Begin an interactive shell
+ *
+ * <#Paragraphs Of Explanation#>
+ *
+ * @param [<#in out in,out#>] <#name#> <#description#>
+ *
+ * @return <#value#> <#explanation#>
+ *
+ * Example:
+ * @code
+ * <#example#>
+ * @endcode
+ */
+int controlState_Interactive(ControlState *state);
+
+/**
+ * Write then Read a command
+ *
+ * @param [<#in out in,out#>] <#name#> <#description#>
+ *
+ * @return <#value#> <#explanation#>
+ *
+ * Example:
+ * @code
+ * <#example#>
+ * @endcode
+ */
+struct iovec *controlState_WriteRead(ControlState *state, struct iovec *msg);
+
+/**
+ * Sets the Debug mode, which will print out much more information.
+ *
+ * Prints out much more diagnostic information about what hicn-light controller
+ * is doing. yes, you would make a CommandOps to set and unset this :)
+ *
+ * @param [in] debugFlag true means to print debug info, false means to turn it
+ * off
+ *
+ * Example:
+ * @code
+ * <#example#>
+ * @endcode
+ */
+void controlState_SetDebug(ControlState *state, bool debugFlag);
+
+/**
+ * Returns the debug state of ControlState
+ *
+ * <#Paragraphs Of Explanation#>
+ *
+ * @param [<#in out in,out#>] <#name#> <#description#>
+ *
+ * @return <#value#> <#explanation#>
+ *
+ * Example:
+ * @code
+ * <#example#>
+ * @endcode
+ */
+bool controlState_GetDebug(ControlState *state);
+#endif  // control_h
+
+void controlState_SetCommandOutput(ControlState *state, char **commandData);
+
+void controlState_ReleaseCommandOutput(ControlState *state, char **commandData,
+                                       size_t commandLenght);
+
+char **controlState_GetCommandOutput(ControlState *state);
+
+void controlState_SetInteractiveFlag(ControlState *state, bool interactive);
+
+bool controlState_IsInteractive(ControlState *state);
+
+void *controlState_GetUserdata(ControlState *state);
+
+bool controlState_isConfigFile(ControlState *state);
+
+int controlState_GetSockfd(ControlState *state);