src/clock.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2010  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 time_updates {
  33         TIME_UPDATES_UNKNOWN = 0,
  34         TIME_UPDATES_MANUAL  = 1,
  35         TIME_UPDATES_AUTO    = 2,
  36 };
  37
  38 enum timezone_updates {
  39         TIMEZONE_UPDATES_UNKNOWN = 0,
  40         TIMEZONE_UPDATES_MANUAL  = 1,
  41         TIMEZONE_UPDATES_AUTO    = 2,
  42 };
  43
  44 static enum time_updates time_updates_config = TIME_UPDATES_AUTO;
  45 static enum timezone_updates timezone_updates_config = TIMEZONE_UPDATES_AUTO;
  46
  47 static char *timezone_config = NULL;
  48
  49 static const char *time_updates2string(enum time_updates value)
  50 {
  51         switch (value) {
  52         case TIME_UPDATES_UNKNOWN:
  53                 break;
  54         case TIME_UPDATES_MANUAL:
  55                 return "manual";
  56         case TIME_UPDATES_AUTO:
  57                 return "auto";
  58         }
  59
  60         return NULL;
  61 }
  62
  63 static enum time_updates string2time_updates(const char *value)
  64 {
  65         if (g_strcmp0(value, "manual") == 0)
  66                 return TIME_UPDATES_MANUAL;
  67         else if (g_strcmp0(value, "auto") == 0)
  68                 return TIME_UPDATES_AUTO;
  69
  70         return TIME_UPDATES_UNKNOWN;
  71 }
  72
  73 static const char *timezone_updates2string(enum timezone_updates value)
  74 {
  75         switch (value) {
  76         case TIMEZONE_UPDATES_UNKNOWN:
  77                 break;
  78         case TIMEZONE_UPDATES_MANUAL:
  79                 return "manual";
  80         case TIMEZONE_UPDATES_AUTO:
  81                 return "auto";
  82         }
  83
  84         return NULL;
  85 }
  86
  87 static enum timezone_updates string2timezone_updates(const char *value)
  88 {
  89         if (g_strcmp0(value, "manual") == 0)
  90                 return TIMEZONE_UPDATES_MANUAL;
  91         else if (g_strcmp0(value, "auto") == 0)
  92                 return TIMEZONE_UPDATES_AUTO;
  93
  94         return TIMEZONE_UPDATES_UNKNOWN;
  95 }
  96
  97 static void append_timeservers(DBusMessageIter *iter, void *user_data)
  98 {
  99         int i;
 100         char **timeservers = __connman_timeserver_system_get();
 101
 102         if (timeservers == NULL)
 103                 return;
 104
 105         for (i = 0; timeservers[i] != NULL; i++) {
 106                 dbus_message_iter_append_basic(iter,
 107                                 DBUS_TYPE_STRING, &timeservers[i]);
 108         }
 109
 110         g_strfreev(timeservers);
 111 }
 112
 113 static DBusMessage *get_properties(DBusConnection *conn,
 114                                         DBusMessage *msg, void *data)
 115 {
 116         DBusMessage *reply;
 117         DBusMessageIter array, dict;
 118         struct timeval tv;
 119         const char *str;
 120
 121         DBG("conn %p", conn);
 122
 123         reply = dbus_message_new_method_return(msg);
 124         if (reply == NULL)
 125                 return NULL;
 126
 127         dbus_message_iter_init_append(reply, &array);
 128
 129         connman_dbus_dict_open(&array, &dict);
 130
 131         if (gettimeofday(&tv, NULL) == 0) {
 132                 dbus_uint64_t val = tv.tv_sec;
 133
 134                 connman_dbus_dict_append_basic(&dict, "Time",
 135                                                 DBUS_TYPE_UINT64, &val);
 136         }
 137
 138         str = time_updates2string(time_updates_config);
 139         if (str != NULL)
 140                 connman_dbus_dict_append_basic(&dict, "TimeUpdates",
 141                                                 DBUS_TYPE_STRING, &str);
 142
 143         if (timezone_config != NULL)
 144                 connman_dbus_dict_append_basic(&dict, "Timezone",
 145                                         DBUS_TYPE_STRING, &timezone_config);
 146
 147         str = timezone_updates2string(timezone_updates_config);
 148         if (str != NULL)
 149                 connman_dbus_dict_append_basic(&dict, "TimezoneUpdates",
 150                                                 DBUS_TYPE_STRING, &str);
 151
 152         connman_dbus_dict_append_array(&dict, "Timeservers",
 153                                 DBUS_TYPE_STRING, append_timeservers, NULL);
 154
 155         connman_dbus_dict_close(&array, &dict);
 156
 157         return reply;
 158 }
 159
 160 static DBusMessage *set_property(DBusConnection *conn,
 161                                         DBusMessage *msg, void *data)
 162 {
 163         DBusMessageIter iter, value;
 164         const char *name;
 165         int type;
 166
 167         DBG("conn %p", conn);
 168
 169         if (dbus_message_iter_init(msg, &iter) == FALSE)
 170                 return __connman_error_invalid_arguments(msg);
 171
 172         dbus_message_iter_get_basic(&iter, &name);
 173         dbus_message_iter_next(&iter);
 174         dbus_message_iter_recurse(&iter, &value);
 175
 176         type = dbus_message_iter_get_arg_type(&value);
 177
 178         if (g_str_equal(name, "Time") == TRUE) {
 179                 struct timeval tv;
 180                 dbus_uint64_t newval;
 181
 182                 if (type == DBUS_TYPE_VARIANT) {
 183                         DBusMessageIter variant = value;
 184                         dbus_message_iter_recurse(&variant, &value);
 185                         type = dbus_message_iter_get_arg_type(&value);
 186                 }
 187                 if (type != DBUS_TYPE_UINT64)
 188                         return __connman_error_invalid_arguments(msg);
 189
 190                 if (time_updates_config != TIME_UPDATES_MANUAL)
 191                         return __connman_error_permission_denied(msg);
 192
 193                 dbus_message_iter_get_basic(&value, &newval);
 194
 195                 tv.tv_sec = newval;
 196                 tv.tv_usec = 0;
 197
 198                 if (settimeofday(&tv, NULL) < 0)
 199                         return __connman_error_invalid_arguments(msg);
 200
 201                 connman_dbus_property_changed_basic(CONNMAN_MANAGER_PATH,
 202                                 CONNMAN_CLOCK_INTERFACE, "Time",
 203                                 DBUS_TYPE_UINT64, &newval);
 204         } else if (g_str_equal(name, "TimeUpdates") == TRUE) {
 205                 const char *strval;
 206                 enum time_updates newval;
 207
 208                 if (type == DBUS_TYPE_VARIANT) {
 209                         DBusMessageIter variant = value;
 210                         dbus_message_iter_recurse(&variant, &value);
 211                         type = dbus_message_iter_get_arg_type(&value);
 212                 }
 213                 if (type != DBUS_TYPE_STRING)
 214                         return __connman_error_invalid_arguments(msg);
 215
 216                 dbus_message_iter_get_basic(&value, &strval);
 217                 newval = string2time_updates(strval);
 218
 219                 if (newval == TIME_UPDATES_UNKNOWN)
 220                         return __connman_error_invalid_arguments(msg);
 221
 222                 if (newval == time_updates_config)
 223                         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 224
 225                 time_updates_config = newval;
 226
 227                 connman_dbus_property_changed_basic(CONNMAN_MANAGER_PATH,
 228                                 CONNMAN_CLOCK_INTERFACE, "TimeUpdates",
 229                                 DBUS_TYPE_STRING, &strval);
 230         } else if (g_str_equal(name, "Timezone") == TRUE) {
 231                 const char *strval;
 232
 233                 if (type == DBUS_TYPE_VARIANT) {
 234                         DBusMessageIter variant = value;
 235                         dbus_message_iter_recurse(&variant, &value);
 236                         type = dbus_message_iter_get_arg_type(&value);
 237                 }
 238                 if (type != DBUS_TYPE_STRING)
 239                         return __connman_error_invalid_arguments(msg);
 240
 241                 if (timezone_updates_config != TIMEZONE_UPDATES_MANUAL)
 242                         return __connman_error_permission_denied(msg);
 243
 244                 dbus_message_iter_get_basic(&value, &strval);
 245
 246                 if (__connman_timezone_change(strval) < 0)
 247                         return __connman_error_invalid_arguments(msg);
 248         } else if (g_str_equal(name, "TimezoneUpdates") == TRUE) {
 249                 const char *strval;
 250                 enum timezone_updates newval;
 251
 252                 if (type == DBUS_TYPE_VARIANT) {
 253                         DBusMessageIter variant = value;
 254                         dbus_message_iter_recurse(&variant, &value);
 255                         type = dbus_message_iter_get_arg_type(&value);
 256                 }
 257                 if (type != DBUS_TYPE_STRING)
 258                         return __connman_error_invalid_arguments(msg);
 259
 260                 dbus_message_iter_get_basic(&value, &strval);
 261                 newval = string2timezone_updates(strval);
 262
 263                 if (newval == TIMEZONE_UPDATES_UNKNOWN)
 264                         return __connman_error_invalid_arguments(msg);
 265
 266                 if (newval == timezone_updates_config)
 267                         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 268
 269                 timezone_updates_config = newval;
 270
 271                 connman_dbus_property_changed_basic(CONNMAN_MANAGER_PATH,
 272                                 CONNMAN_CLOCK_INTERFACE, "TimezoneUpdates",
 273                                 DBUS_TYPE_STRING, &strval);
 274         } else if (g_str_equal(name, "Timeservers") == TRUE) {
 275                 DBusMessageIter entry;
 276
 277                 if (type == DBUS_TYPE_VARIANT) {
 278                         DBusMessageIter variant = value;
 279                         dbus_message_iter_recurse(&variant, &value);
 280                         type = dbus_message_iter_get_arg_type(&value);
 281                 }
 282                 if (type != DBUS_TYPE_ARRAY)
 283                         return __connman_error_invalid_arguments(msg);
 284
 285                 dbus_message_iter_recurse(&value, &entry);
 286
 287                 if (dbus_message_iter_get_arg_type(&entry) == DBUS_TYPE_INVALID)
 288                         __connman_timeserver_system_append(NULL);
 289
 290                 while (dbus_message_iter_get_arg_type(&entry) == DBUS_TYPE_STRING) {
 291                         const char *val;
 292
 293                         dbus_message_iter_get_basic(&entry, &val);
 294                         __connman_timeserver_system_append(val);
 295                         dbus_message_iter_next(&entry);
 296                 }
 297
 298                 connman_dbus_property_changed_array(CONNMAN_MANAGER_PATH,
 299                                 CONNMAN_CLOCK_INTERFACE, "Timeservers",
 300                                 DBUS_TYPE_STRING, append_timeservers, NULL);
 301         } else
 302                 return __connman_error_invalid_property(msg);
 303
 304         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 305 }
 306
 307 static GDBusMethodTable clock_methods[] = {
 308         { "GetProperties", "",   "a{sv}", get_properties },
 309         { "SetProperty",   "sv", "",      set_property   },
 310         { },
 311 };
 312
 313 static GDBusSignalTable clock_signals[] = {
 314         { "PropertyChanged", "sv" },
 315         { },
 316 };
 317
 318 static DBusConnection *connection = NULL;
 319
 320 void __connman_clock_update_timezone(void)
 321 {
 322         DBG("");
 323
 324         g_free(timezone_config);
 325         timezone_config = __connman_timezone_lookup();
 326
 327         if (timezone_config == NULL)
 328                 return;
 329
 330         connman_dbus_property_changed_basic(CONNMAN_MANAGER_PATH,
 331                                 CONNMAN_CLOCK_INTERFACE, "Timezone",
 332                                 DBUS_TYPE_STRING, &timezone_config);
 333 }
 334
 335 int __connman_clock_init(void)
 336 {
 337         DBG("");
 338
 339         connection = connman_dbus_get_connection();
 340         if (connection == NULL)
 341                 return -1;
 342
 343         __connman_timezone_init();
 344
 345         timezone_config = __connman_timezone_lookup();
 346
 347         g_dbus_register_interface(connection, CONNMAN_MANAGER_PATH,
 348                                                 CONNMAN_CLOCK_INTERFACE,
 349                                                 clock_methods, clock_signals,
 350                                                 NULL, NULL, NULL);
 351
 352         return 0;
 353 }
 354
 355 void __connman_clock_cleanup(void)
 356 {
 357         DBG("");
 358
 359         if (connection == NULL)
 360                 return;
 361
 362         g_dbus_unregister_interface(connection, CONNMAN_MANAGER_PATH,
 363                                                 CONNMAN_CLOCK_INTERFACE);
 364
 365         dbus_connection_unref(connection);
 366
 367         __connman_timezone_cleanup();
 368
 369         g_free(timezone_config);
 370 }