src/network-clock.c

   1 /*
   2  * Network Configuration Module
   3  *
   4  * Copyright (c) 2000 - 2012 Samsung Electronics Co., Ltd. All rights reserved.
   5  *
   6  * Licensed under the Apache License, Version 2.0 (the "License");
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *
  10  * http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  *
  18  */
  19
  20 #include <vconf.h>
  21 #include <vconf-keys.h>
  22
  23 #include "log.h"
  24 #include "util.h"
  25 #include "netdbus.h"
  26 #include "wifi-state.h"
  27
  28 #define NTP_SERVER      "pool.ntp.org"
  29 #define CONNMAN_GLOBAL_SETTING  "/var/lib/connman/settings"
  30
  31 static void __netconfig_clock_clear_timeserver(void)
  32 {
  33         GKeyFile *keyfile = NULL;
  34
  35         keyfile = netconfig_keyfile_load(CONNMAN_GLOBAL_SETTING);
  36
  37         if (keyfile == NULL)
  38                 return;
  39
  40         g_key_file_remove_key(keyfile, "global", "Timeservers", NULL);
  41
  42         netconfig_keyfile_save(keyfile, CONNMAN_GLOBAL_SETTING);
  43         g_key_file_free(keyfile);
  44 }
  45
  46 static gboolean __netconfig_clock_clear_timeserver_timer(gpointer data)
  47 {
  48         INFO("Clear NTP server");
  49
  50         __netconfig_clock_clear_timeserver();
  51
  52         return FALSE;
  53 }
  54
  55 static void __netconfig_clock_set_timeserver(const char *server)
  56 {
  57         GVariant* reply = NULL;
  58         const char param0[] = "Timeservers";
  59         GVariant *params = NULL;
  60         GVariantBuilder *builder;
  61
  62         builder = g_variant_builder_new(G_VARIANT_TYPE("as"));
  63         g_variant_builder_add(builder, "s", server);
  64
  65         params = g_variant_new("(sv)", param0, g_variant_builder_end(builder));
  66         g_variant_builder_unref(builder);
  67
  68         reply = netconfig_invoke_dbus_method(CONNMAN_SERVICE,
  69                         CONNMAN_MANAGER_PATH, CONNMAN_CLOCK_INTERFACE,
  70                         "SetProperty", params);
  71
  72         if (reply == NULL)
  73                 ERR("Failed to configure NTP server");
  74         else
  75                 g_variant_unref(reply);
  76
  77         return;
  78 }
  79
  80 static void __netconfig_set_timeserver(void)
  81 {
  82         guint timeserver_clear_timer = 0;
  83
  84         __netconfig_clock_set_timeserver((const char *)NTP_SERVER);
  85
  86         netconfig_start_timer_seconds(5, __netconfig_clock_clear_timeserver_timer,
  87                         NULL, &timeserver_clear_timer);
  88 }
  89
  90 static void __netconfig_clock(
  91                 wifi_service_state_e state, void *user_data)
  92 {
  93         gboolean automatic_time_update = 0;
  94
  95         if (state != NETCONFIG_WIFI_CONNECTED)
  96                 return;
  97
  98         netconfig_vconf_get_bool(
  99                         VCONFKEY_SETAPPL_STATE_AUTOMATIC_TIME_UPDATE_BOOL,
 100                         &automatic_time_update);
 101
 102         if (automatic_time_update == FALSE) {
 103                 INFO("Automatic time update is not set (%d)", automatic_time_update);
 104                 return;
 105         }
 106
 107         __netconfig_set_timeserver();
 108 }
 109
 110 static wifi_state_notifier netconfig_clock_notifier = {
 111                 .wifi_state_changed = __netconfig_clock,
 112                 .user_data = NULL,
 113 };
 114
 115 static void __automatic_time_update_changed_cb(keynode_t *node, void *user_data)
 116 {
 117         gboolean automatic_time_update = FALSE;
 118         wifi_service_state_e wifi_state = NETCONFIG_WIFI_UNKNOWN;
 119
 120         if (node != NULL)
 121                 automatic_time_update = vconf_keynode_get_bool(node);
 122         else
 123                 netconfig_vconf_get_bool(VCONFKEY_SETAPPL_STATE_AUTOMATIC_TIME_UPDATE_BOOL, &automatic_time_update);
 124
 125         if (automatic_time_update == FALSE) {
 126                 INFO("Automatic time update is changed to 'FALSE'");
 127                 return;
 128         }
 129
 130          wifi_state = wifi_state_get_service_state();
 131
 132          if (wifi_state != NETCONFIG_WIFI_CONNECTED) {
 133                 INFO("WiFi state is not NETCONFIG_WIFI_CONNECTED");
 134                 return;
 135          }
 136
 137         __netconfig_set_timeserver();
 138 }
 139
 140 void netconfig_clock_init(void)
 141 {
 142         INFO("netconfig_clock_init is called");
 143         vconf_notify_key_changed(VCONFKEY_SETAPPL_STATE_AUTOMATIC_TIME_UPDATE_BOOL,
 144                         __automatic_time_update_changed_cb, NULL);
 145
 146         wifi_state_notifier_register(&netconfig_clock_notifier);
 147 }
 148
 149 void netconfig_clock_deinit(void)
 150 {
 151         wifi_state_notifier_unregister(&netconfig_clock_notifier);
 152 }