/*  RetroArch - A frontend for libretro.
 *  Copyright (C) 2014-2017 - Jean-André Santoni
 *
 *  RetroArch is free software: you can redistribute it and/or modify it under the terms
 *  of the GNU General Public License as published by the Free Software Found-
 *  ation, either version 3 of the License, or (at your option) any later version.
 *
 *  RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 *  PURPOSE.  See the GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License along with RetroArch.
 *  If not, see <http://www.gnu.org/licenses/>.
 */

#include <compat/strl.h>
#include <file/file_path.h>
#include <array/rbuf.h>
#include <lists/string_list.h>
#include <string/stdstring.h>
#include <retro_miscellaneous.h>
#include <time.h>
#include <unistd.h>

#include "../wifi_driver.h"

#include "../../configuration.h"
#include "../../retroarch.h"
#include "../../verbosity.h"
#include "../../lakka.h"
#ifdef HAVE_GFX_WIDGETS
#include "../../gfx/gfx_widgets.h"
#endif

typedef struct
{
   wifi_network_scan_t scan;
   char command[300];
   bool connmanctl_widgets_supported;
} connman_t;

static void *connmanctl_init(void)
{
   connman_t *connman = (connman_t*)calloc(1, sizeof(connman_t));
#ifdef HAVE_GFX_WIDGETS
   connman->connmanctl_widgets_supported = gfx_widgets_ready();
#endif
   return connman;
}

static void connmanctl_free(void *data)
{
   connman_t *connman = (connman_t*)data;
   if (connman->scan.net_list)
      RBUF_FREE(connman->scan.net_list);
   if (data)
      free(data);
}

static bool connmanctl_start(void *data)
{
   (void)data;
   return true;
}

static void connmanctl_stop(void *data)
{
   (void)data;
}

static void connmanctl_refresh_services(connman_t *connman)
{
   char line[512];
   FILE *serv_file = popen("connmanctl services", "r");

   if (connman->scan.net_list)
      RBUF_FREE(connman->scan.net_list);

   while (fgets(line, 512, serv_file))
   {
      int i;
      size_t ssid_len;
      wifi_network_info_t entry;
      struct string_list* list = NULL;
      size_t len               = strlen(line);
      if (len > 0 && line[len-1] == '\n')
         line[--len] = '\0';

      /* Parse lines directly and store net info directly */
      memset(&entry, 0, sizeof(entry));
      entry.connected      = (line[2] == 'R' || line[2] == 'O');
      entry.saved_password = (line[0] == '*');

      /* connmanctl services outputs a 4 character prefixed lines,
       * either whitespace or an identifier. i.e.:
       * $ connmanctl services
       *     '*A0 SSID some_unique_id'
       *     '    SSID some_another_unique_id'
       */
      if (!(list = string_split(&line[4], " ")))
         break;

      if (list->size == 0)
         continue;

      for (i = 0; i < list->size-1; i++)
      {
         strlcat(entry.ssid, list->elems[i].data, sizeof(entry.ssid));
         strlcat(entry.ssid, " ", sizeof(entry.ssid)-1);
      }
      if ((ssid_len = strlen(entry.ssid)) > 0)
         entry.ssid[ssid_len - 1] = 0;

      /* Store the connman network id here, for later */
      strlcpy(entry.netid, list->elems[list->size-1].data, sizeof(entry.netid));
      string_list_free(list);

      /* Filter only wifi nets */
      if (!strncmp(entry.netid, "wifi_", 5))
         RBUF_PUSH(connman->scan.net_list, entry);
   }

   pclose(serv_file);
}

static bool connmanctl_enable(void *data, bool enabled)
{
   connman_t *connman = (connman_t*)data;
   if (enabled)
      pclose(popen("connmanctl enable wifi", "r"));
   else
      pclose(popen("connmanctl disable wifi", "r"));

   /* Update the services, to ensure we properly show connection status */
   connmanctl_refresh_services(connman);

   return true;
}

static bool connmanctl_tether_status(connman_t *connman)
{
   /* Returns true if the tethering is active
    * false when tethering is not active
    */
   size_t ln_size;
   FILE *command_file = NULL;
   char ln[3]         = {0};

   /* Following command lists 'technologies' of connman,
    * greps the wifi + 10 following lines, then first
    * occurance of 'Tethering', then 'True' and counts
    * the matching lines.
    * Expected result is either 1 (active) or 0 (not active)
    */
   snprintf(connman->command, sizeof(connman->command), "\
         connmanctl technologies | \
         grep \"/net/connman/technology/wifi\" -A 10 | \
         grep \"^  Tethering =\" -m 1 | \
         grep \"True\" | \
         wc -l");

   command_file = popen(connman->command, "r");

   fgets(ln, sizeof(ln), command_file);

   ln_size = strlen(ln) - 1;
   if (ln[ln_size] == '\n')
      ln[ln_size] = '\0';

   RARCH_LOG("[CONNMANCTL] Tether Status: command: \"%s\", output: \"%s\"\n",
         connman->command, ln);

   pclose(command_file);

   if (!ln)
      return false;
   if (ln[0] == '0')
      return false;
   if (ln[0] == '1')
      return true;
   return false;
}

static void connmanctl_tether_toggle(
      connman_t *connman, bool switch_on, char* ap_name, char *pass_key)
{
   /* Starts / stops the tethering service on wi-fi device */
   char output[256]     = {0};
   FILE *command_file   = NULL;
   settings_t *settings = config_get_ptr();
#ifdef HAVE_GFX_WIDGETS
   bool widgets_active  = connman->connmanctl_widgets_supported;
#endif

   snprintf(connman->command, sizeof(connman->command), "\
         connmanctl tether wifi %s %s %s",
         switch_on ? "on" : "off", ap_name, pass_key);

   command_file = popen(connman->command, "r");

   RARCH_LOG("[CONNMANCTL] Tether toggle: command: \"%s\"\n",
         connman->command);

   while (fgets(output, sizeof(output), command_file))
   {
      size_t output_size = strlen(output) - 1;
      if (output[output_size] == '\n')
         output[output_size] = '\0';

      RARCH_LOG("[CONNMANCTL] Tether toggle: output: \"%s\"\n",
            output);

#ifdef HAVE_GFX_WIDGETS
      if (!widgets_active)
#endif
         runloop_msg_queue_push(output, 1, 180, true,
               NULL, MESSAGE_QUEUE_ICON_DEFAULT,
               MESSAGE_QUEUE_CATEGORY_INFO);
   }

   pclose(command_file);

   RARCH_LOG("[CONNMANCTL] Tether toggle: command finished\n");

   if (switch_on)
   {
      if (!connmanctl_tether_status(connman))
         configuration_set_bool(settings,
               settings->bools.localap_enable, false);
   }
   else
   {
      if (connmanctl_tether_status(connman))
         configuration_set_bool(settings,
               settings->bools.localap_enable, true);
   }
}

static void connmanctl_scan(void *data)
{
   settings_t *settings             = config_get_ptr();
   connman_t *connman               = (connman_t*)data;

   if (connmanctl_tether_status(connman))
   {
      runloop_msg_queue_push(msg_hash_to_str(MSG_LOCALAP_SWITCHING_OFF),
            1, 180, true, NULL, MESSAGE_QUEUE_ICON_DEFAULT,
            MESSAGE_QUEUE_CATEGORY_INFO);
      configuration_set_bool(settings,
            settings->bools.localap_enable, false);
      connmanctl_tether_toggle(connman, false, "", "");
   }

   pclose(popen("connmanctl scan wifi", "r"));

   runloop_msg_queue_push(msg_hash_to_str(MSG_WIFI_SCAN_COMPLETE),
         1, 180, true, NULL, MESSAGE_QUEUE_ICON_DEFAULT,
         MESSAGE_QUEUE_CATEGORY_INFO);

   /* Refresh now the services, to read the discovered networks */
   connman->scan.scan_time = time(NULL);
   connmanctl_refresh_services(connman);
}

static wifi_network_scan_t* connmanctl_get_ssids(void *data)
{
   unsigned i;
   connman_t *connman = (connman_t*)data;

   return &connman->scan;
}

static bool connmanctl_ssid_is_online(void *data, unsigned i)
{
   connman_t *connman = (connman_t*)data;
   if (!connman->scan.net_list || i >= RBUF_LEN(connman->scan.net_list))
      return false;
   return connman->scan.net_list[i].connected;
}

static bool connmanctl_connection_info(void *data, wifi_network_info_t *netinfo)
{
   connman_t *connman = (connman_t*)data;
   unsigned i;

   if (!connman->scan.net_list)
      return false;

   for (i = 0; i < RBUF_LEN(connman->scan.net_list); i++)
   {
      if (connman->scan.net_list[i].connected)
      {
         if (netinfo)
            memcpy(netinfo, &connman->scan.net_list[i], sizeof(*netinfo));
         return true;
      }
   }
      
   return false;
}

static bool connmanctl_disconnect_ssid(void *data,
      const wifi_network_info_t* netinfo)
{
   connman_t *connman = (connman_t*)data;

   /* TODO/FIXME: Check whether this network is actually connected */

   snprintf(connman->command, sizeof(connman->command),
         "connmanctl disconnect %s 2>&1",
         netinfo->netid);

   pclose(popen(connman->command, "r"));
   
   /* Refresh the state since it has definitely changed */
   connmanctl_refresh_services(connman);

   return true;
}

static bool connmanctl_connect_ssid(
      void *data, const wifi_network_info_t *netinfo)
{
   unsigned i;
   char netid[160];
   char settings_dir[PATH_MAX_LENGTH];
   char settings_path[PATH_MAX_LENGTH];
   bool success                        = false;
   connman_t *connman                  = (connman_t*)data;
   settings_t *settings                = config_get_ptr();
   static struct string_list* list     = NULL;
#ifdef HAVE_GFX_WIDGETS
   bool widgets_active                 = 
      connman->connmanctl_widgets_supported;
#endif
   strlcpy(netid, netinfo->netid, sizeof(netid));
   fill_pathname_join_special(settings_dir, LAKKA_CONNMAN_DIR, 
         netid, sizeof(settings_dir));

   path_mkdir(settings_dir);

   fill_pathname_join_special(settings_path, settings_dir, "settings",
         sizeof(settings_path));

   if (!netinfo->saved_password)
   {
      size_t ssid_len;
      FILE *settings_file = fopen(settings_path, "w");
      if (!settings_file)
         return false;
      fprintf(settings_file, "[%s]\n", netid);
      fprintf(settings_file, "Name=%s\n", netinfo->ssid);
      fprintf(settings_file, "SSID=");

      ssid_len = strlen(netinfo->ssid);
      for (i = 0; i < ssid_len; i++)
         fprintf(settings_file, "%02x", (unsigned int) netinfo->ssid[i]);
      fprintf(settings_file, "\n");

      fprintf(settings_file, "Favorite=%s\n", "true");
      fprintf(settings_file, "AutoConnect=%s\n", "true");
      fprintf(settings_file, "Passphrase=%s\n", netinfo->passphrase);
      fprintf(settings_file, "IPv4.method=%s\n", "dhcp");
      fclose(settings_file);

      /* connman does not pick this up automatically, so hack: */
      system("systemctl restart connman.service");
   }
   else
   {
      /* No need for pass, config should be there already, verify it */
      if (!path_is_valid(settings_path))
      {
         /* Usually a mismatch between connman state and config, reload */
         system("systemctl restart connman.service");
         return false;
      }
   }

   if (connmanctl_tether_status(connman))
   {
      runloop_msg_queue_push(msg_hash_to_str(MSG_LOCALAP_SWITCHING_OFF),
            1, 180, true, NULL, MESSAGE_QUEUE_ICON_DEFAULT,
            MESSAGE_QUEUE_CATEGORY_INFO);
      configuration_set_bool(settings,
            settings->bools.localap_enable, false);
      connmanctl_tether_toggle(connman, false, "", "");
   }

   strlcpy(connman->command, "connmanctl connect ", sizeof(connman->command));
   strlcat(connman->command, netinfo->netid,        sizeof(connman->command));

   pclose(popen(connman->command, "r"));

   /* Refresh status to reflect the updated state */
   connmanctl_refresh_services(connman);
   
   /* connman is a PITA, return code is not meaningful at all :( */
   for (i = 0; i < RBUF_LEN(connman->scan.net_list); i++)
   {
      if (!strcmp(netid, connman->scan.net_list[i].netid))
      {
         /* Found it! Check if we are connected now */
         success = connman->scan.net_list[i].connected;
         if (!success)
         {
            /* TODO: Add forget password option, which gets rid of this hack */
            connman->scan.net_list[i].saved_password = false;
            unlink(settings_path);
         }
      }
   }

#ifdef HAVE_GFX_WIDGETS
   if (!widgets_active)
#endif
   {
      if (success)
         runloop_msg_queue_push("Connected", 1, 180, true,
               NULL, MESSAGE_QUEUE_ICON_DEFAULT,
               MESSAGE_QUEUE_CATEGORY_INFO);
      else
         runloop_msg_queue_push("Connection failed!", 1, 180, true,
               NULL, MESSAGE_QUEUE_ICON_DEFAULT,
               MESSAGE_QUEUE_CATEGORY_INFO);
   }

   return success;
}

static void connmanctl_get_connected_ssid(
      connman_t *connman, char* ssid, size_t buffersize)
{
   size_t ssid_size;
   /* Stores the SSID of the currently connected Wi-Fi
    * network in ssid
    */
   FILE *command_file = NULL;

   if (buffersize < 1)
      return;

   /* Following command lists all connman services, greps
    * only 'wifi_' services, then greps the one with
    * 'R' (Ready) or 'O' (Online) flag and cuts out the ssid
    */
   snprintf(connman->command, sizeof(connman->command),
         "connmanctl services | "
         "grep wifi_ | "
         "grep \"^..\\(R\\|O\\)\" | "
         "cut -d' ' -f 2");

   command_file = popen(connman->command, "r");

   fgets(ssid, buffersize, command_file);

   pclose(command_file);

   ssid_size = strlen(ssid) - 1;

   if ((ssid_size + 1) > 0)
      if (ssid[ssid_size] == '\n')
         ssid[ssid_size] = '\0';

   RARCH_LOG("[CONNMANCTL] Get Connected SSID: command: \"%s\", output: \"%s\"\n",
         connman->command, (ssid_size + 1) ? ssid : "<nothing_found>");
}

static void connmanctl_get_connected_servicename(
      connman_t *connman, char* servicename, size_t buffersize)
{
   /* Stores the service name of currently connected Wi-Fi
    * network in servicename
    */
   FILE *command_file = NULL;
   FILE *service_file = NULL;
   char ln[3]         = {0};
   char *temp;

   if (buffersize < 1)
      return;

   temp = (char*)malloc(sizeof(char) * buffersize);

   /* Following command lists all stored services in
    * connman settings folder, which are then used in
    * the next while loop for parsing if the service
    * is currently online/ready
    */
   snprintf(connman->command, sizeof(connman->command), "\
         for serv in %s/wifi_*/ ; do \
            if [ -d $serv ] ; then \
               basename $serv ; \
            fi ; \
         done",
         LAKKA_CONNMAN_DIR);

   command_file = popen(connman->command, "r");

   RARCH_LOG("[CONNMANCTL] Testing configured services for activity: command: \"%s\"\n",
         connman->command);

   while (fgets(temp, buffersize, command_file))
   {
      size_t ln_size;
      size_t temp_size = strlen(temp) - 1;

      if ((temp_size + 1) > 0)
         if (temp[temp_size] == '\n')
            temp[temp_size] = '\0';

      if ((temp_size + 1) == 0)
      {
         RARCH_WARN("[CONNMANCTL] Service name empty.\n");
         continue;
      }

      /* Here we test the found service for online | ready
       * status and count the lines. Expected results are
       * 0 = is not active, 1 = is active
       */
      snprintf(connman->command, sizeof(connman->command), "\
            connmanctl services %s | \
            grep \"^  State = \\(online\\|ready\\)\" | \
            wc -l",
            temp);

      service_file = popen(connman->command, "r");

      fgets(ln, sizeof(ln), service_file);
      ln_size = strlen(ln) - 1;

      if (ln[ln_size] == '\n')
         ln[ln_size] = '\0';

      pclose(service_file);

      RARCH_LOG("[CONNMANCTL] Service: \"%s\", status: \"%s\"\n",
            temp, ln);

      if (ln[0] == '1')
      {
         pclose(command_file);

         strlcpy(servicename, temp, buffersize);

         free(temp);

         RARCH_LOG("[CONNMANCTL] Service \"%s\" considered as currently online\n",
               servicename);

         return;
      }
   }

   pclose(command_file);
}

static void connmanctl_tether_start_stop(void *data, bool start, char* configfile)
{
   /* Start / stop wrapper for the tethering service
    * It also checks, if we are currently connected
    * to a wi-fi network, which needs to be disconnected
    * before starting the tethering service, or if the
    * tethering service is already running / not running
    * before performing the desired action
    */
   char ap_name[64];
   char pass_key[256];
   FILE *command_file  = NULL;
   char ln[512]        = {0};
   char ssid[64]       = {0};
   char service[256]   = {0};
   connman_t *connman  = (connman_t*)data;
#ifdef HAVE_GFX_WIDGETS
   bool widgets_active = connman->connmanctl_widgets_supported;
#endif

   RARCH_LOG("[CONNMANCTL] Tether start stop: begin\n");

   if (start) /* we want to start tethering */
   {
      RARCH_LOG("[CONNMANCTL] Tether start stop: request to start access point\n");

      if (connmanctl_tether_status(connman)) /* check if already tethering and bail out if so */
      {
         RARCH_LOG("[CONNMANCTL] Tether start stop: AP already running\n");
         runloop_msg_queue_push(msg_hash_to_str(MSG_LOCALAP_ALREADY_RUNNING),
               1, 180, true, NULL, MESSAGE_QUEUE_ICON_DEFAULT,
               MESSAGE_QUEUE_CATEGORY_INFO);
         return;
      }

      /* check if there is a config file, if not, create one, if yes, parse it */
      if (!(command_file = fopen(configfile, "r")))
      {
         RARCH_WARN("[CONNMANCTL] Tether start stop: config \"%s\" does not exist\n",
               configfile);

         if (!(command_file = fopen(configfile, "w")))
         {
            RARCH_ERR("[CONNMANCTL] Tether start stop: cannot create config file \"%s\"\n",
                  configfile);

            runloop_msg_queue_push(msg_hash_to_str(MSG_LOCALAP_ERROR_CONFIG_CREATE),
                  1, 180, true, NULL, MESSAGE_QUEUE_ICON_DEFAULT,
                  MESSAGE_QUEUE_CATEGORY_ERROR);

            return;
         }

         RARCH_LOG("[CONNMANCTL] Tether start stop: creating new config \"%s\"\n",
               configfile);

         strlcpy(ap_name, "LakkaAccessPoint", sizeof(ap_name));
         strlcpy(pass_key, "RetroArch",       sizeof(pass_key));

         fprintf(command_file, "APNAME=%s\nPASSWORD=%s", ap_name, pass_key);

         fclose(command_file);

         RARCH_LOG("[CONNMANCTL] Tether start stop: new config \"%s\" created\n",
               configfile);
      }
      else
      {
         fclose(command_file);

         RARCH_LOG("[CONNMANCTL] Tether start stop: config \"%s\" exists, reading it\n",
               configfile);

         snprintf(connman->command, sizeof(connman->command), "\
               grep -m 1 \"^APNAME=\" %s | cut -d '=' -f 2- && \
               grep -m 1 \"^PASSWORD=\" %s | cut -d '=' -f 2-",
               configfile, configfile);

         command_file = popen(connman->command, "r");

         int i = 0;

         RARCH_LOG("[CONNMANCTL] Tether start stop: parsing command: \"%s\"\n",
               connman->command);

         while (fgets(ln, sizeof(ln), command_file))
         {
            size_t ln_size = strlen(ln) - 1;

            i++;
            if ((ln_size + 1) > 1)
            {
               if (ln[ln_size] == '\n')
                  ln[ln_size] = '\0';

               if (i == 1)
               {
                  strlcpy(ap_name, ln, sizeof(ap_name));

                  RARCH_LOG("[CONNMANCTL] Tether start stop: found APNAME: \"%s\"\n",
                        ap_name);

                  continue;
               }

               if (i == 2)
               {
                  strlcpy(pass_key, ln, sizeof(pass_key));
                  RARCH_LOG("[CONNMANCTL] Tether start stop: found PASSWORD: \"%s\"\n",
                        pass_key);
                  continue;
               }

               if (i > 2)
               {
                  RARCH_WARN("[CONNMANCTL] Tether start stop: you should not get here...\n");
                  break;
               }
            }
         }

         pclose(command_file);
      }

      if (!ap_name || !pass_key)
      {
         RARCH_ERR("[CONNMANCTL] Tether start stop: APNAME or PASSWORD missing\n");

         snprintf(ln, sizeof(ln),
               msg_hash_to_str(MSG_LOCALAP_ERROR_CONFIG_PARSE),
               configfile);

         runloop_msg_queue_push(ln,
               1, 180, true, NULL, MESSAGE_QUEUE_ICON_DEFAULT,
               MESSAGE_QUEUE_CATEGORY_ERROR);

         return;
      }

      /* check if connected to a wi-fi network */
      RARCH_LOG("[CONNMANCTL] Tether start stop: checking if not connected to a wi-fi network...\n");
      connmanctl_get_connected_ssid(connman, ssid, sizeof(ssid));

      if (strlen(ssid) != 0)
      {
         connmanctl_get_connected_servicename(connman, service, sizeof(service));

         if (strlen(service) != 0)
         {
            /* disconnect from wi-fi network */
            RARCH_LOG("[CONNMANCTL] Tether start stop: connected to SSID \"%s\", service \"%s\"\n",
                  ssid, service);

            snprintf(ln, sizeof(ln),
                  msg_hash_to_str(MSG_WIFI_DISCONNECT_FROM),
                  ssid);

            runloop_msg_queue_push(ln, 1, 180, true,
                  NULL, MESSAGE_QUEUE_ICON_DEFAULT,
                  MESSAGE_QUEUE_CATEGORY_INFO);

            snprintf(connman->command, sizeof(connman->command), "\
                  connmanctl disconnect %s",
                  service);

            command_file = popen(connman->command, "r");

            RARCH_LOG("[CONNMANCTL] Tether start stop: disconnecting from service \"%s\", command: \"%s\"\n",
                  service, connman->command);

            while (fgets(ln, sizeof(ln), command_file))
            {
               size_t ln_size = strlen(ln) - 1;
               if (ln[ln_size] == '\n')
                  ln[ln_size] = '\0';

               RARCH_LOG("[CONNMANCTL] Tether start stop: output: \"%s\"\n",
                     ln);

#ifdef HAVE_GFX_WIDGETS
               if (!widgets_active)
#endif
                  runloop_msg_queue_push(ln, 1, 180, true,
                        NULL, MESSAGE_QUEUE_ICON_DEFAULT,
                        MESSAGE_QUEUE_CATEGORY_INFO);
            }

            pclose(command_file);

            RARCH_LOG("[CONNMANCTL] Tether start stop: disconnect end\n");
         }
      }

      snprintf(connman->command, sizeof(connman->command),
            msg_hash_to_str(MSG_LOCALAP_STARTING),
            ap_name, pass_key);

      runloop_msg_queue_push(connman->command,
            1, 180, true, NULL, MESSAGE_QUEUE_ICON_DEFAULT,
            MESSAGE_QUEUE_CATEGORY_INFO);
   }
   else /* we want to stop tethering */
   {
      RARCH_LOG("[CONNMANCTL] Tether start stop: request to stop access point\n");

      if (!connmanctl_tether_status(connman)) /* check if not tethering and when not, bail out */
      {
         RARCH_LOG("[CONNMANCTL] Tether start stop: access point is not running\n");

         runloop_msg_queue_push(msg_hash_to_str(MSG_LOCALAP_NOT_RUNNING),
               1, 180, true, NULL, MESSAGE_QUEUE_ICON_DEFAULT,
               MESSAGE_QUEUE_CATEGORY_INFO);

         return;
      }

      runloop_msg_queue_push(msg_hash_to_str(MSG_LOCALAP_SWITCHING_OFF),
            1, 180, true, NULL, MESSAGE_QUEUE_ICON_DEFAULT,
            MESSAGE_QUEUE_CATEGORY_INFO);
   }

   RARCH_LOG("[CONNMANCTL] Tether start stop: calling tether_toggle()\n");

   /* call the tether toggle function */
   connmanctl_tether_toggle(connman, start, ap_name, pass_key);

   RARCH_LOG("[CONNMANCTL] Tether start stop: end\n");
}

wifi_driver_t wifi_connmanctl = {
   connmanctl_init,
   connmanctl_free,
   connmanctl_start,
   connmanctl_stop,
   connmanctl_enable,
   connmanctl_connection_info,
   connmanctl_scan,
   connmanctl_get_ssids,
   connmanctl_ssid_is_online,
   connmanctl_connect_ssid,
   connmanctl_disconnect_ssid,
   connmanctl_tether_start_stop,
   "connmanctl",
};