src/clock.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2013  Intel Corporation. All rights reserved.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <sys/time.h>
  27
  28 #include <gdbus.h>
  29
  30 #include "connman.h"
  31
  32 enum timezone_updates {
  33         TIMEZONE_UPDATES_UNKNOWN = 0,
  34         TIMEZONE_UPDATES_MANUAL  = 1,
  35         TIMEZONE_UPDATES_AUTO    = 2,
  36 };
  37
  38 static enum time_updates time_updates_config = TIME_UPDATES_AUTO;
  39 static enum timezone_updates timezone_updates_config = TIMEZONE_UPDATES_AUTO;
  40
  41 static char *timezone_config = NULL;
  42 #if defined TIZEN_EXT
  43 static bool time_updated = false;
  44 #endif
  45
  46 static const char *time_updates2string(enum time_updates value)
  47 {
  48         switch (value) {
  49         case TIME_UPDATES_UNKNOWN:
  50                 break;
  51         case TIME_UPDATES_MANUAL:
  52                 return "manual";
  53         case TIME_UPDATES_AUTO:
  54                 return "auto";
  55         }
  56
  57         return NULL;
  58 }
  59
  60 static enum time_updates string2time_updates(const char *value)
  61 {
  62         if (g_strcmp0(value, "manual") == 0)
  63                 return TIME_UPDATES_MANUAL;
  64         else if (g_strcmp0(value, "auto") == 0)
  65                 return TIME_UPDATES_AUTO;
  66
  67         return TIME_UPDATES_UNKNOWN;
  68 }
  69
  70 static const char *timezone_updates2string(enum timezone_updates value)
  71 {
  72         switch (value) {
  73         case TIMEZONE_UPDATES_UNKNOWN:
  74                 break;
  75         case TIMEZONE_UPDATES_MANUAL:
  76                 return "manual";
  77         case TIMEZONE_UPDATES_AUTO:
  78                 return "auto";
  79         }
  80
  81         return NULL;
  82 }
  83
  84 static enum timezone_updates string2timezone_updates(const char *value)
  85 {
  86         if (g_strcmp0(value, "manual") == 0)
  87                 return TIMEZONE_UPDATES_MANUAL;
  88         else if (g_strcmp0(value, "auto") == 0)
  89                 return TIMEZONE_UPDATES_AUTO;
  90
  91         return TIMEZONE_UPDATES_UNKNOWN;
  92 }
  93
  94 static void clock_properties_load(void)
  95 {
  96         GKeyFile *keyfile;
  97         char *str;
  98         enum time_updates time_value;
  99         enum timezone_updates timezone_value;
 100
 101         keyfile = __connman_storage_load_global();
 102         if (!keyfile)
 103                 return;
 104
 105         str = g_key_file_get_string(keyfile, "global", "TimeUpdates", NULL);
 106
 107         time_value = string2time_updates(str);
 108         if (time_value != TIME_UPDATES_UNKNOWN)
 109                 time_updates_config = time_value;
 110
 111         g_free(str);
 112
 113         str = g_key_file_get_string(keyfile, "global", "TimezoneUpdates",
 114                         NULL);
 115
 116         timezone_value = string2timezone_updates(str);
 117         if (timezone_value != TIMEZONE_UPDATES_UNKNOWN)
 118                 timezone_updates_config = timezone_value;
 119
 120         g_free(str);
 121
 122         g_key_file_free(keyfile);
 123 }
 124
 125 static void clock_properties_save(void)
 126 {
 127         GKeyFile *keyfile;
 128         const char *str;
 129
 130         keyfile = __connman_storage_load_global();
 131         if (!keyfile)
 132                 keyfile = g_key_file_new();
 133
 134         str = time_updates2string(time_updates_config);
 135         if (str)
 136                 g_key_file_set_string(keyfile, "global", "TimeUpdates", str);
 137         else
 138                 g_key_file_remove_key(keyfile, "global", "TimeUpdates", NULL);
 139
 140         str = timezone_updates2string(timezone_updates_config);
 141         if (str)
 142                 g_key_file_set_string(keyfile, "global", "TimezoneUpdates",
 143                                 str);
 144         else
 145                 g_key_file_remove_key(keyfile, "global", "TimezoneUpdates",
 146                                 NULL);
 147
 148         __connman_storage_save_global(keyfile);
 149
 150         g_key_file_free(keyfile);
 151 }
 152
 153 enum time_updates __connman_clock_timeupdates(void)
 154 {
 155         return time_updates_config;
 156 }
 157
 158 static void append_timeservers(DBusMessageIter *iter, void *user_data)
 159 {
 160         int i;
 161         char **timeservers = __connman_timeserver_system_get();
 162
 163         if (!timeservers)
 164                 return;
 165
 166         for (i = 0; timeservers[i]; i++) {
 167                 dbus_message_iter_append_basic(iter,
 168                                 DBUS_TYPE_STRING, &timeservers[i]);
 169         }
 170
 171         g_strfreev(timeservers);
 172 }
 173
 174 static DBusMessage *get_properties(DBusConnection *conn,
 175                                         DBusMessage *msg, void *data)
 176 {
 177         DBusMessage *reply;
 178         DBusMessageIter array, dict;
 179         struct timeval tv;
 180         const char *str;
 181 #if defined TIZEN_EXT
 182         dbus_bool_t val = time_updated;
 183 #endif
 184
 185         DBG("conn %p", conn);
 186
 187         reply = dbus_message_new_method_return(msg);
 188         if (!reply)
 189                 return NULL;
 190
 191         dbus_message_iter_init_append(reply, &array);
 192
 193         connman_dbus_dict_open(&array, &dict);
 194
 195 #if defined TIZEN_EXT
 196         connman_dbus_dict_append_basic(&dict, "TimeUpdated",
 197                                                 DBUS_TYPE_BOOLEAN,
 198                                                 &val);
 199 #endif
 200
 201         if (gettimeofday(&tv, NULL) == 0) {
 202                 dbus_uint64_t val = tv.tv_sec;
 203
 204                 connman_dbus_dict_append_basic(&dict, "Time",
 205                                                 DBUS_TYPE_UINT64, &val);
 206         }
 207
 208         str = time_updates2string(time_updates_config);
 209         if (str)
 210                 connman_dbus_dict_append_basic(&dict, "TimeUpdates",
 211                                                 DBUS_TYPE_STRING, &str);
 212
 213         if (timezone_config)
 214                 connman_dbus_dict_append_basic(&dict, "Timezone",
 215                                         DBUS_TYPE_STRING, &timezone_config);
 216
 217         str = timezone_updates2string(timezone_updates_config);
 218         if (str)
 219                 connman_dbus_dict_append_basic(&dict, "TimezoneUpdates",
 220                                                 DBUS_TYPE_STRING, &str);
 221
 222         connman_dbus_dict_append_array(&dict, "Timeservers",
 223                                 DBUS_TYPE_STRING, append_timeservers, NULL);
 224
 225         connman_dbus_dict_close(&array, &dict);
 226
 227         return reply;
 228 }
 229
 230 static DBusMessage *set_property(DBusConnection *conn,
 231                                         DBusMessage *msg, void *data)
 232 {
 233         DBusMessageIter iter, value;
 234         const char *name;
 235         int type;
 236
 237         DBG("conn %p", conn);
 238
 239         if (!dbus_message_iter_init(msg, &iter))
 240                 return __connman_error_invalid_arguments(msg);
 241
 242         if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
 243                 return __connman_error_invalid_arguments(msg);
 244
 245         dbus_message_iter_get_basic(&iter, &name);
 246         dbus_message_iter_next(&iter);
 247
 248         if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
 249                 return __connman_error_invalid_arguments(msg);
 250
 251         dbus_message_iter_recurse(&iter, &value);
 252
 253         type = dbus_message_iter_get_arg_type(&value);
 254
 255         if (g_str_equal(name, "Time")) {
 256 #if defined TIZEN_EXT
 257                 /* Tizen updates time (ntp) by system service */
 258
 259                 return __connman_error_permission_denied(msg);
 260 #else
 261                 struct timeval tv;
 262                 dbus_uint64_t newval;
 263
 264                 if (type != DBUS_TYPE_UINT64)
 265                         return __connman_error_invalid_arguments(msg);
 266
 267                 if (time_updates_config != TIME_UPDATES_MANUAL)
 268                         return __connman_error_permission_denied(msg);
 269
 270                 dbus_message_iter_get_basic(&value, &newval);
 271
 272                 tv.tv_sec = newval;
 273                 tv.tv_usec = 0;
 274
 275                 if (settimeofday(&tv, NULL) < 0)
 276                         return __connman_error_invalid_arguments(msg);
 277
 278                 connman_dbus_property_changed_basic(CONNMAN_MANAGER_PATH,
 279                                 CONNMAN_CLOCK_INTERFACE, "Time",
 280                                 DBUS_TYPE_UINT64, &newval);
 281 #endif
 282         } else if (g_str_equal(name, "TimeUpdates")) {
 283                 const char *strval;
 284                 enum time_updates newval;
 285
 286                 if (type != DBUS_TYPE_STRING)
 287                         return __connman_error_invalid_arguments(msg);
 288
 289                 dbus_message_iter_get_basic(&value, &strval);
 290                 newval = string2time_updates(strval);
 291
 292                 if (newval == TIME_UPDATES_UNKNOWN)
 293                         return __connman_error_invalid_arguments(msg);
 294
 295                 if (newval == time_updates_config)
 296                         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 297
 298                 time_updates_config = newval;
 299
 300                 clock_properties_save();
 301                 connman_dbus_property_changed_basic(CONNMAN_MANAGER_PATH,
 302                                 CONNMAN_CLOCK_INTERFACE, "TimeUpdates",
 303                                 DBUS_TYPE_STRING, &strval);
 304         } else if (g_str_equal(name, "Timezone")) {
 305                 const char *strval;
 306
 307                 if (type != DBUS_TYPE_STRING)
 308                         return __connman_error_invalid_arguments(msg);
 309
 310                 if (timezone_updates_config != TIMEZONE_UPDATES_MANUAL)
 311                         return __connman_error_permission_denied(msg);
 312
 313                 dbus_message_iter_get_basic(&value, &strval);
 314
 315                 if (__connman_timezone_change(strval) < 0)
 316                         return __connman_error_invalid_arguments(msg);
 317         } else if (g_str_equal(name, "TimezoneUpdates")) {
 318                 const char *strval;
 319                 enum timezone_updates newval;
 320
 321                 if (type != DBUS_TYPE_STRING)
 322                         return __connman_error_invalid_arguments(msg);
 323
 324                 dbus_message_iter_get_basic(&value, &strval);
 325                 newval = string2timezone_updates(strval);
 326
 327                 if (newval == TIMEZONE_UPDATES_UNKNOWN)
 328                         return __connman_error_invalid_arguments(msg);
 329
 330                 if (newval == timezone_updates_config)
 331                         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 332
 333                 timezone_updates_config = newval;
 334
 335                 clock_properties_save();
 336                 connman_dbus_property_changed_basic(CONNMAN_MANAGER_PATH,
 337                                 CONNMAN_CLOCK_INTERFACE, "TimezoneUpdates",
 338                                 DBUS_TYPE_STRING, &strval);
 339         } else if (g_str_equal(name, "Timeservers")) {
 340                 DBusMessageIter entry;
 341                 char **str = NULL;
 342                 GSList *list = NULL;
 343                 int count = 0;
 344
 345                 if (type != DBUS_TYPE_ARRAY)
 346                         return __connman_error_invalid_arguments(msg);
 347
 348                 dbus_message_iter_recurse(&value, &entry);
 349
 350                 while (dbus_message_iter_get_arg_type(&entry) == DBUS_TYPE_STRING) {
 351                         const char *val;
 352                         GSList *new_head;
 353
 354                         dbus_message_iter_get_basic(&entry, &val);
 355
 356                         new_head = __connman_timeserver_add_list(list, val);
 357                         if (list != new_head) {
 358                                 count++;
 359                                 list = new_head;
 360                         }
 361
 362                         dbus_message_iter_next(&entry);
 363                 }
 364
 365                 if (list) {
 366                         str = g_new0(char *, count+1);
 367
 368                         while (list) {
 369                                 count--;
 370                                 str[count] = list->data;
 371                                 list = g_slist_delete_link(list, list);
 372                         };
 373                 }
 374
 375                 __connman_timeserver_system_set(str);
 376
 377                 if (str)
 378                         g_strfreev(str);
 379
 380                 connman_dbus_property_changed_array(CONNMAN_MANAGER_PATH,
 381                                 CONNMAN_CLOCK_INTERFACE, "Timeservers",
 382                                 DBUS_TYPE_STRING, append_timeservers, NULL);
 383         } else
 384                 return __connman_error_invalid_property(msg);
 385
 386         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 387 }
 388
 389 static const GDBusMethodTable clock_methods[] = {
 390         { GDBUS_METHOD("GetProperties",
 391                         NULL, GDBUS_ARGS({ "properties", "a{sv}" }),
 392                         get_properties) },
 393         { GDBUS_METHOD("SetProperty",
 394                         GDBUS_ARGS({ "name", "s" }, { "value", "v" }), NULL,
 395                         set_property)   },
 396         { },
 397 };
 398
 399 static const GDBusSignalTable clock_signals[] = {
 400         { GDBUS_SIGNAL("PropertyChanged",
 401                         GDBUS_ARGS({ "name", "s" }, { "value", "v" })) },
 402         { },
 403 };
 404
 405 static DBusConnection *connection = NULL;
 406
 407 #if defined TIZEN_EXT
 408 void __connman_clock_set_time_updated(bool updated)
 409 {
 410         time_updated = updated;
 411 }
 412 #endif
 413
 414 void __connman_clock_update_timezone(void)
 415 {
 416         DBG("");
 417
 418         g_free(timezone_config);
 419         timezone_config = __connman_timezone_lookup();
 420
 421         if (!timezone_config)
 422                 return;
 423
 424         connman_dbus_property_changed_basic(CONNMAN_MANAGER_PATH,
 425                                 CONNMAN_CLOCK_INTERFACE, "Timezone",
 426                                 DBUS_TYPE_STRING, &timezone_config);
 427 }
 428
 429 int __connman_clock_init(void)
 430 {
 431         DBG("");
 432
 433         connection = connman_dbus_get_connection();
 434         if (!connection)
 435                 return -1;
 436
 437         __connman_timezone_init();
 438
 439         timezone_config = __connman_timezone_lookup();
 440
 441         g_dbus_register_interface(connection, CONNMAN_MANAGER_PATH,
 442                                                 CONNMAN_CLOCK_INTERFACE,
 443                                                 clock_methods, clock_signals,
 444                                                 NULL, NULL, NULL);
 445
 446         clock_properties_load();
 447         return 0;
 448 }
 449
 450 void __connman_clock_cleanup(void)
 451 {
 452         DBG("");
 453
 454         if (!connection)
 455                 return;
 456
 457         g_dbus_unregister_interface(connection, CONNMAN_MANAGER_PATH,
 458                                                 CONNMAN_CLOCK_INTERFACE);
 459
 460         dbus_connection_unref(connection);
 461
 462         __connman_timezone_cleanup();
 463
 464         g_free(timezone_config);
 465 }