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
  43 static const char *time_updates2string(enum time_updates value)
  44 {
  45         switch (value) {
  46         case TIME_UPDATES_UNKNOWN:
  47                 break;
  48         case TIME_UPDATES_MANUAL:
  49                 return "manual";
  50         case TIME_UPDATES_AUTO:
  51                 return "auto";
  52         }
  53
  54         return NULL;
  55 }
  56
  57 static enum time_updates string2time_updates(const char *value)
  58 {
  59         if (g_strcmp0(value, "manual") == 0)
  60                 return TIME_UPDATES_MANUAL;
  61         else if (g_strcmp0(value, "auto") == 0)
  62                 return TIME_UPDATES_AUTO;
  63
  64         return TIME_UPDATES_UNKNOWN;
  65 }
  66
  67 static const char *timezone_updates2string(enum timezone_updates value)
  68 {
  69         switch (value) {
  70         case TIMEZONE_UPDATES_UNKNOWN:
  71                 break;
  72         case TIMEZONE_UPDATES_MANUAL:
  73                 return "manual";
  74         case TIMEZONE_UPDATES_AUTO:
  75                 return "auto";
  76         }
  77
  78         return NULL;
  79 }
  80
  81 static enum timezone_updates string2timezone_updates(const char *value)
  82 {
  83         if (g_strcmp0(value, "manual") == 0)
  84                 return TIMEZONE_UPDATES_MANUAL;
  85         else if (g_strcmp0(value, "auto") == 0)
  86                 return TIMEZONE_UPDATES_AUTO;
  87
  88         return TIMEZONE_UPDATES_UNKNOWN;
  89 }
  90
  91 static void clock_properties_load(void)
  92 {
  93         GKeyFile *keyfile;
  94         char *str;
  95         enum time_updates time_value;
  96         enum timezone_updates timezone_value;
  97
  98         keyfile = __connman_storage_load_global();
  99         if (!keyfile)
 100                 return;
 101
 102         str = g_key_file_get_string(keyfile, "global", "TimeUpdates", NULL);
 103
 104         time_value = string2time_updates(str);
 105         if (time_value != TIME_UPDATES_UNKNOWN)
 106                 time_updates_config = time_value;
 107
 108         g_free(str);
 109
 110         str = g_key_file_get_string(keyfile, "global", "TimezoneUpdates",
 111                         NULL);
 112
 113         timezone_value = string2timezone_updates(str);
 114         if (timezone_value != TIMEZONE_UPDATES_UNKNOWN)
 115                 timezone_updates_config = timezone_value;
 116
 117         g_free(str);
 118
 119         g_key_file_free(keyfile);
 120 }
 121
 122 static void clock_properties_save(void)
 123 {
 124         GKeyFile *keyfile;
 125         const char *str;
 126
 127         keyfile = __connman_storage_load_global();
 128         if (!keyfile)
 129                 keyfile = g_key_file_new();
 130
 131         str = time_updates2string(time_updates_config);
 132         if (str)
 133                 g_key_file_set_string(keyfile, "global", "TimeUpdates", str);
 134         else
 135                 g_key_file_remove_key(keyfile, "global", "TimeUpdates", NULL);
 136
 137         str = timezone_updates2string(timezone_updates_config);
 138         if (str)
 139                 g_key_file_set_string(keyfile, "global", "TimezoneUpdates",
 140                                 str);
 141         else
 142                 g_key_file_remove_key(keyfile, "global", "TimezoneUpdates",
 143                                 NULL);
 144
 145         __connman_storage_save_global(keyfile);
 146
 147         g_key_file_free(keyfile);
 148 }
 149
 150 enum time_updates __connman_clock_timeupdates(void)
 151 {
 152         return time_updates_config;
 153 }
 154
 155 static void append_timeservers(DBusMessageIter *iter, void *user_data)
 156 {
 157         int i;
 158         char **timeservers = __connman_timeserver_system_get();
 159
 160         if (!timeservers)
 161                 return;
 162
 163         for (i = 0; timeservers[i]; i++) {
 164                 dbus_message_iter_append_basic(iter,
 165                                 DBUS_TYPE_STRING, &timeservers[i]);
 166         }
 167
 168         g_strfreev(timeservers);
 169 }
 170
 171 static DBusMessage *get_properties(DBusConnection *conn,
 172                                         DBusMessage *msg, void *data)
 173 {
 174         DBusMessage *reply;
 175         DBusMessageIter array, dict;
 176         struct timeval tv;
 177         const char *str;
 178
 179         DBG("conn %p", conn);
 180
 181         reply = dbus_message_new_method_return(msg);
 182         if (!reply)
 183                 return NULL;
 184
 185         dbus_message_iter_init_append(reply, &array);
 186
 187         connman_dbus_dict_open(&array, &dict);
 188
 189         if (gettimeofday(&tv, NULL) == 0) {
 190                 dbus_uint64_t val = tv.tv_sec;
 191
 192                 connman_dbus_dict_append_basic(&dict, "Time",
 193                                                 DBUS_TYPE_UINT64, &val);
 194         }
 195
 196         str = time_updates2string(time_updates_config);
 197         if (str)
 198                 connman_dbus_dict_append_basic(&dict, "TimeUpdates",
 199                                                 DBUS_TYPE_STRING, &str);
 200
 201         if (timezone_config)
 202                 connman_dbus_dict_append_basic(&dict, "Timezone",
 203                                         DBUS_TYPE_STRING, &timezone_config);
 204
 205         str = timezone_updates2string(timezone_updates_config);
 206         if (str)
 207                 connman_dbus_dict_append_basic(&dict, "TimezoneUpdates",
 208                                                 DBUS_TYPE_STRING, &str);
 209
 210         connman_dbus_dict_append_array(&dict, "Timeservers",
 211                                 DBUS_TYPE_STRING, append_timeservers, NULL);
 212
 213         connman_dbus_dict_close(&array, &dict);
 214
 215         return reply;
 216 }
 217
 218 static DBusMessage *set_property(DBusConnection *conn,
 219                                         DBusMessage *msg, void *data)
 220 {
 221         DBusMessageIter iter, value;
 222         const char *name;
 223         int type;
 224
 225         DBG("conn %p", conn);
 226
 227         if (!dbus_message_iter_init(msg, &iter))
 228                 return __connman_error_invalid_arguments(msg);
 229
 230         if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
 231                 return __connman_error_invalid_arguments(msg);
 232
 233         dbus_message_iter_get_basic(&iter, &name);
 234         dbus_message_iter_next(&iter);
 235
 236         if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
 237                 return __connman_error_invalid_arguments(msg);
 238
 239         dbus_message_iter_recurse(&iter, &value);
 240
 241         type = dbus_message_iter_get_arg_type(&value);
 242
 243         if (g_str_equal(name, "Time")) {
 244 #if defined TIZEN_EXT
 245                 /* Tizen updates time (ntp) by system service */
 246
 247                 return __connman_error_permission_denied(msg);
 248 #else
 249                 struct timeval tv;
 250                 dbus_uint64_t newval;
 251
 252                 if (type != DBUS_TYPE_UINT64)
 253                         return __connman_error_invalid_arguments(msg);
 254
 255                 if (time_updates_config != TIME_UPDATES_MANUAL)
 256                         return __connman_error_permission_denied(msg);
 257
 258                 dbus_message_iter_get_basic(&value, &newval);
 259
 260                 tv.tv_sec = newval;
 261                 tv.tv_usec = 0;
 262
 263                 if (settimeofday(&tv, NULL) < 0)
 264                         return __connman_error_invalid_arguments(msg);
 265
 266                 connman_dbus_property_changed_basic(CONNMAN_MANAGER_PATH,
 267                                 CONNMAN_CLOCK_INTERFACE, "Time",
 268                                 DBUS_TYPE_UINT64, &newval);
 269 #endif
 270         } else if (g_str_equal(name, "TimeUpdates")) {
 271                 const char *strval;
 272                 enum time_updates newval;
 273
 274                 if (type != DBUS_TYPE_STRING)
 275                         return __connman_error_invalid_arguments(msg);
 276
 277                 dbus_message_iter_get_basic(&value, &strval);
 278                 newval = string2time_updates(strval);
 279
 280                 if (newval == TIME_UPDATES_UNKNOWN)
 281                         return __connman_error_invalid_arguments(msg);
 282
 283                 if (newval == time_updates_config)
 284                         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 285
 286                 time_updates_config = newval;
 287
 288                 clock_properties_save();
 289                 connman_dbus_property_changed_basic(CONNMAN_MANAGER_PATH,
 290                                 CONNMAN_CLOCK_INTERFACE, "TimeUpdates",
 291                                 DBUS_TYPE_STRING, &strval);
 292         } else if (g_str_equal(name, "Timezone")) {
 293                 const char *strval;
 294
 295                 if (type != DBUS_TYPE_STRING)
 296                         return __connman_error_invalid_arguments(msg);
 297
 298                 if (timezone_updates_config != TIMEZONE_UPDATES_MANUAL)
 299                         return __connman_error_permission_denied(msg);
 300
 301                 dbus_message_iter_get_basic(&value, &strval);
 302
 303                 if (__connman_timezone_change(strval) < 0)
 304                         return __connman_error_invalid_arguments(msg);
 305         } else if (g_str_equal(name, "TimezoneUpdates")) {
 306                 const char *strval;
 307                 enum timezone_updates newval;
 308
 309                 if (type != DBUS_TYPE_STRING)
 310                         return __connman_error_invalid_arguments(msg);
 311
 312                 dbus_message_iter_get_basic(&value, &strval);
 313                 newval = string2timezone_updates(strval);
 314
 315                 if (newval == TIMEZONE_UPDATES_UNKNOWN)
 316                         return __connman_error_invalid_arguments(msg);
 317
 318                 if (newval == timezone_updates_config)
 319                         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 320
 321                 timezone_updates_config = newval;
 322
 323                 clock_properties_save();
 324                 connman_dbus_property_changed_basic(CONNMAN_MANAGER_PATH,
 325                                 CONNMAN_CLOCK_INTERFACE, "TimezoneUpdates",
 326                                 DBUS_TYPE_STRING, &strval);
 327         } else if (g_str_equal(name, "Timeservers")) {
 328                 DBusMessageIter entry;
 329                 char **str = NULL;
 330                 GSList *list = NULL;
 331                 int count = 0;
 332
 333                 if (type != DBUS_TYPE_ARRAY)
 334                         return __connman_error_invalid_arguments(msg);
 335
 336                 dbus_message_iter_recurse(&value, &entry);
 337
 338                 while (dbus_message_iter_get_arg_type(&entry) == DBUS_TYPE_STRING) {
 339                         const char *val;
 340                         GSList *new_head;
 341
 342                         dbus_message_iter_get_basic(&entry, &val);
 343
 344                         new_head = __connman_timeserver_add_list(list, val);
 345                         if (list != new_head) {
 346                                 count++;
 347                                 list = new_head;
 348                         }
 349
 350                         dbus_message_iter_next(&entry);
 351                 }
 352
 353                 if (list) {
 354                         str = g_new0(char *, count+1);
 355
 356                         while (list) {
 357                                 count--;
 358                                 str[count] = list->data;
 359                                 list = g_slist_delete_link(list, list);
 360                         };
 361                 }
 362
 363                 __connman_timeserver_system_set(str);
 364
 365                 if (str)
 366                         g_strfreev(str);
 367
 368                 connman_dbus_property_changed_array(CONNMAN_MANAGER_PATH,
 369                                 CONNMAN_CLOCK_INTERFACE, "Timeservers",
 370                                 DBUS_TYPE_STRING, append_timeservers, NULL);
 371         } else
 372                 return __connman_error_invalid_property(msg);
 373
 374         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 375 }
 376
 377 static const GDBusMethodTable clock_methods[] = {
 378         { GDBUS_METHOD("GetProperties",
 379                         NULL, GDBUS_ARGS({ "properties", "a{sv}" }),
 380                         get_properties) },
 381         { GDBUS_METHOD("SetProperty",
 382                         GDBUS_ARGS({ "name", "s" }, { "value", "v" }), NULL,
 383                         set_property)   },
 384         { },
 385 };
 386
 387 static const GDBusSignalTable clock_signals[] = {
 388         { GDBUS_SIGNAL("PropertyChanged",
 389                         GDBUS_ARGS({ "name", "s" }, { "value", "v" })) },
 390         { },
 391 };
 392
 393 static DBusConnection *connection = NULL;
 394
 395 void __connman_clock_update_timezone(void)
 396 {
 397         DBG("");
 398
 399         g_free(timezone_config);
 400         timezone_config = __connman_timezone_lookup();
 401
 402         if (!timezone_config)
 403                 return;
 404
 405         connman_dbus_property_changed_basic(CONNMAN_MANAGER_PATH,
 406                                 CONNMAN_CLOCK_INTERFACE, "Timezone",
 407                                 DBUS_TYPE_STRING, &timezone_config);
 408 }
 409
 410 int __connman_clock_init(void)
 411 {
 412         DBG("");
 413
 414         connection = connman_dbus_get_connection();
 415         if (!connection)
 416                 return -1;
 417
 418         __connman_timezone_init();
 419
 420         timezone_config = __connman_timezone_lookup();
 421
 422         g_dbus_register_interface(connection, CONNMAN_MANAGER_PATH,
 423                                                 CONNMAN_CLOCK_INTERFACE,
 424                                                 clock_methods, clock_signals,
 425                                                 NULL, NULL, NULL);
 426
 427         clock_properties_load();
 428         return 0;
 429 }
 430
 431 void __connman_clock_cleanup(void)
 432 {
 433         DBG("");
 434
 435         if (!connection)
 436                 return;
 437
 438         g_dbus_unregister_interface(connection, CONNMAN_MANAGER_PATH,
 439                                                 CONNMAN_CLOCK_INTERFACE);
 440
 441         dbus_connection_unref(connection);
 442
 443         __connman_timezone_cleanup();
 444
 445         g_free(timezone_config);
 446 }