src/dbus/netdbus.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 <stdio.h>
  21 #include <string.h>
  22 #include <stdlib.h>
  23
  24 #include "log.h"
  25 #include "netdbus.h"
  26
  27 #define DBUS_PARAM_TYPE_STRING          "string"
  28 #define DBUS_PARAM_TYPE_INT16           "int16"
  29 #define DBUS_PARAM_TYPE_UINT16          "uint16"
  30 #define DBUS_PARAM_TYPE_INT32           "int32"
  31 #define DBUS_PARAM_TYPE_UINT32          "uint32"
  32 #define DBUS_PARAM_TYPE_INT64           "int64"
  33 #define DBUS_PARAM_TYPE_UINT64          "uint64"
  34 #define DBUS_PARAM_TYPE_DOUBLE          "double"
  35 #define DBUS_PARAM_TYPE_BYTE            "byte"
  36 #define DBUS_PARAM_TYPE_BOOLEAN         "boolean"
  37 #define DBUS_PARAM_TYPE_OBJECT_PATH     "objpath"
  38 #define DBUS_PARAM_TYPE_VARIANT         "variant"
  39 #define DBUS_PARAM_TYPE_ARRAY           "array"
  40
  41 static GDBusObjectManagerServer *manager_server_wifi = NULL;
  42 static GDBusObjectManagerServer *manager_server_state = NULL;
  43 static GDBusObjectManagerServer *manager_server_statistics = NULL;
  44 static GDBusObjectManagerServer *manager_server_vpn = NULL;
  45 static GDBusObjectManagerServer *manager_server_mptcp = NULL;
  46 static guint owner_id = 0;
  47 static got_name_cb g_callback = NULL;
  48
  49 struct gdbus_conn_data {
  50         GDBusConnection *connection;
  51         int conn_ref_count;
  52         GCancellable *cancellable;
  53 };
  54
  55 static struct gdbus_conn_data gconn_data = {NULL, 0, NULL};
  56
  57 GDBusObjectManagerServer *netdbus_get_wifi_manager(void)
  58 {
  59         return manager_server_wifi;
  60 }
  61
  62 GDBusObjectManagerServer *netdbus_get_state_manager(void)
  63 {
  64         return manager_server_state;
  65 }
  66
  67 GDBusObjectManagerServer *netdbus_get_statistics_manager(void)
  68 {
  69         return manager_server_statistics;
  70 }
  71
  72 GDBusObjectManagerServer *netdbus_get_vpn_manager(void)
  73 {
  74         return manager_server_vpn;
  75 }
  76
  77 GDBusObjectManagerServer *netdbus_get_mptcp_manager(void)
  78 {
  79         return manager_server_mptcp;
  80 }
  81
  82 GDBusConnection *netdbus_get_connection(void)
  83 {
  84         return gconn_data.connection;
  85 }
  86
  87 GCancellable *netdbus_get_cancellable(void)
  88 {
  89         return gconn_data.cancellable;
  90 }
  91
  92 void netconfig_gdbus_pending_call_ref(void)
  93 {
  94         g_object_ref(gconn_data.connection);
  95
  96         __sync_fetch_and_add(&gconn_data.conn_ref_count, 1);
  97 }
  98
  99 void netconfig_gdbus_pending_call_unref(void)
 100 {
 101         if (gconn_data.conn_ref_count < 1)
 102                 return;
 103
 104         g_object_unref(gconn_data.connection);
 105
 106         if (__sync_sub_and_fetch(&gconn_data.conn_ref_count, 1) < 1) {
 107                 /* TODO: Check this
 108                  * gconn_data.connection = NULL;
 109                  */
 110         }
 111 }
 112
 113 int _create_gdbus_call(GDBusConnection *conn)
 114 {
 115         if (gconn_data.connection != NULL) {
 116                 ERR("Connection already set");
 117                 return -1;
 118         }
 119
 120         gconn_data.connection = conn;
 121         if (gconn_data.connection == NULL) {
 122                 ERR("Failed to connect to the D-BUS daemon");
 123                 return -1;
 124         }
 125
 126         gconn_data.cancellable = g_cancellable_new();
 127
 128         return 0;
 129 }
 130
 131 gboolean netconfig_is_cellular_internet_profile(const char *profile)
 132 {
 133         const char internet_suffix[] = "_1";
 134         char *suffix = NULL;
 135
 136         if (profile == NULL)
 137                 return FALSE;
 138
 139         if (g_str_has_prefix(profile, CONNMAN_CELLULAR_SERVICE_PROFILE_PREFIX)
 140                         == TRUE) {
 141                 suffix = strrchr(profile, '_');
 142                 if (g_strcmp0(suffix, internet_suffix) == 0)
 143                         return TRUE;
 144         }
 145
 146         return FALSE;
 147 }
 148
 149 gboolean netconfig_is_cellular_profile(const char *profile)
 150 {
 151         if (profile == NULL)
 152                 return FALSE;
 153
 154         return g_str_has_prefix(profile, CONNMAN_CELLULAR_SERVICE_PROFILE_PREFIX);
 155 }
 156
 157 gboolean netconfig_is_wifi_profile(const char *profile)
 158 {
 159         if (profile == NULL)
 160                 return FALSE;
 161
 162         return g_str_has_prefix(profile, CONNMAN_WIFI_SERVICE_PROFILE_PREFIX);
 163 }
 164
 165 gboolean netconfig_is_ethernet_profile(const char *profile)
 166 {
 167         if (profile == NULL)
 168                 return FALSE;
 169
 170         return g_str_has_prefix(profile, CONNMAN_ETHERNET_SERVICE_PROFILE_PREFIX);
 171 }
 172
 173 gboolean netconfig_is_bluetooth_profile(const char *profile)
 174 {
 175         if (profile == NULL)
 176                 return FALSE;
 177
 178         return g_str_has_prefix(profile, CONNMAN_BLUETOOTH_SERVICE_PROFILE_PREFIX);
 179 }
 180
 181 gboolean netconfig_invoke_dbus_method_nonblock(const char *dest, const char *path,
 182                 const char *interface_name, const char *method, GVariant *params,
 183                 GAsyncReadyCallback notify_func)
 184 {
 185         GDBusConnection *connection = NULL;
 186
 187         DBG("[GDBUS Async] %s %s %s", interface_name, method, path);
 188
 189         connection = netdbus_get_connection();
 190         if (connection == NULL) {
 191                 ERR("Failed to get gdbus connection");
 192                 return FALSE;
 193         }
 194
 195         g_dbus_connection_call(connection,
 196                         dest,
 197                         path,
 198                         interface_name,
 199                         method,
 200                         params,
 201                         NULL,
 202                         G_DBUS_CALL_FLAGS_NONE,
 203                         NETCONFIG_DBUS_REPLY_TIMEOUT,
 204                         netdbus_get_cancellable(),
 205                         (GAsyncReadyCallback) notify_func,
 206                         NULL);
 207         if (notify_func)
 208                 netconfig_gdbus_pending_call_ref();
 209
 210         return TRUE;
 211 }
 212
 213 GVariant *netconfig_invoke_dbus_method(const char *dest, const char *path,
 214                 const char *interface_name, const char *method, GVariant *params)
 215 {
 216
 217         GError *error = NULL;
 218         GVariant *reply = NULL;
 219         GDBusConnection *connection;
 220
 221         connection = netdbus_get_connection();
 222         if (connection == NULL) {
 223                 ERR("Failed to get GDBusconnection");
 224                 return reply;
 225         }
 226
 227         reply = g_dbus_connection_call_sync(
 228                         connection,
 229                         dest,
 230                         path,
 231                         interface_name,
 232                         method,
 233                         params,
 234                         NULL,
 235                         G_DBUS_CALL_FLAGS_NONE,
 236                         NETCONFIG_DBUS_REPLY_TIMEOUT,
 237                         netdbus_get_cancellable(),
 238                         &error);
 239
 240         if (reply == NULL) {
 241                 if (error != NULL) {
 242                         ERR("g_dbus_connection_call_sync() failed"
 243                                                 "error [%d: %s]", error->code, error->message);
 244                         g_error_free(error);
 245                 } else {
 246                         ERR("g_dbus_connection_call_sync() failed");
 247                 }
 248
 249                 return NULL;
 250         }
 251
 252         return reply;
 253 }
 254
 255 gboolean netconfig_dbus_emit_signal(const gchar *destination_bus_name,
 256                                                                         const gchar *object_path,
 257                                                                         const gchar *interface_name,
 258                                                                         const gchar *signal_name,
 259                                                                         GVariant *params)
 260 {
 261         gboolean rv = FALSE;
 262         GError *Error = NULL;
 263         GDBusConnection *connection;
 264
 265         connection = netdbus_get_connection();
 266         if (connection == NULL) {
 267                 ERR("[NET_DBUS] GDBusconnection is NULL");
 268                 return 0;
 269         }
 270
 271         rv = g_dbus_connection_emit_signal(connection, destination_bus_name,
 272                 object_path, interface_name, signal_name, params, &Error);
 273         if (rv != TRUE) {
 274                 ERR("[NET_DBUS] Failed to emit signal, Error: %s", Error->message);
 275                 g_clear_error(&Error);
 276                 return rv;
 277         }
 278
 279         INFO("Sent signal (%s), Interface (%s)", signal_name, interface_name);
 280
 281         return rv;
 282 }
 283
 284 static void _got_bus_cb(GDBusConnection *conn, const gchar *name,
 285                 gpointer user_data)
 286 {
 287         _create_gdbus_call(conn);
 288 }
 289
 290 static void _got_name_cb(GDBusConnection *conn, const gchar *name,
 291                 gpointer user_data)
 292 {
 293         INFO("Got gdbus name: [%s] and gdbus connection: [%p]", name, conn);
 294
 295         if (g_callback != NULL)
 296                 g_callback();
 297 }
 298
 299 static void _lost_name_cb(GDBusConnection *conn, const gchar *name,
 300                 gpointer user_data)
 301 {
 302         /* May service name is already in use */
 303         ERR("_lost_name_cb [%s]", name);
 304
 305         /* The result of DBus name request is only permitted,
 306          *  such as DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER.
 307          */
 308         exit(2);
 309 }
 310
 311 int setup_gdbus(got_name_cb cb)
 312 {
 313         g_callback = cb;
 314
 315         manager_server_wifi = g_dbus_object_manager_server_new(NETCONFIG_WIFI_PATH);
 316         if (manager_server_wifi == NULL) {
 317                 ERR("Manager server for WIFI_PATH not created.");
 318                 exit(1);
 319         }
 320
 321         manager_server_state = g_dbus_object_manager_server_new(NETCONFIG_NETWORK_STATE_PATH);
 322         if (manager_server_state == NULL) {
 323                 ERR("Manager server for STATE_PATH not created.");
 324                 exit(1);
 325         }
 326
 327         manager_server_statistics = g_dbus_object_manager_server_new(NETCONFIG_NETWORK_STATISTICS_PATH);
 328         if (manager_server_statistics == NULL) {
 329                 ERR("Manager server for STATISTICS_PATH not created.");
 330                 exit(1);
 331         }
 332
 333         manager_server_vpn = g_dbus_object_manager_server_new(NETCONFIG_VPNSVC_PATH);
 334         if (manager_server_vpn == NULL) {
 335                 ERR("Manager server for VPNSVC_PATH not created.");
 336                 exit(1);
 337         }
 338
 339         manager_server_mptcp = g_dbus_object_manager_server_new(NETCONFIG_MPTCP_PATH);
 340         if (manager_server_mptcp == NULL) {
 341                 ERR("Manager server for MPTCP_PATH not created.");
 342                 exit(1);
 343         }
 344
 345         owner_id = g_bus_own_name(G_BUS_TYPE_SYSTEM, NETCONFIG_SERVICE,
 346                                                           G_BUS_NAME_OWNER_FLAGS_NONE,
 347                                                           _got_bus_cb, _got_name_cb, _lost_name_cb,
 348                                                           NULL, NULL);
 349         if (!owner_id) {
 350                 ERR("Could not get system bus!");
 351                 return -EIO;
 352         }
 353
 354         INFO("Got system bus!");
 355         return 0;
 356 }
 357
 358 void cleanup_gdbus(void)
 359 {
 360         g_bus_unown_name(owner_id);
 361         g_object_unref(manager_server_wifi);
 362         g_object_unref(manager_server_state);
 363         g_object_unref(manager_server_statistics);
 364 }