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