src/wifi-tdls.c

   1 /*
   2  * Network Configuration Module
   3  *
   4  * Copyright (c) 2012-2013 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 <time.h>
  22 #include <stdlib.h>
  23 #include <sys/time.h>
  24 #include <unistd.h>
  25 #include <string.h>
  26 #include "neterror.h"
  27 #include "netdbus.h"
  28 #include "netsupplicant.h"
  29 #include "network-state.h"
  30 #include <vconf.h>
  31 #include <vconf-keys.h>
  32 #include <arpa/inet.h>
  33 #include <log.h>
  34 #include "util.h"
  35 #include "neterror.h"
  36 #include "wifi-tdls.h"
  37 #include <glib.h>
  38
  39 char *peer_mac = NULL;
  40 int is_connected = 0;
  41 static gint tdls_timer_id = 0;
  42 int is_discover_broadcast = 0;
  43
  44 #define TDLS_DISCOVER_TIMOUT 4 /*TDLS Unicast Discovery Timeout*/
  45 #define TDLS_DISCOVER_BROADCAST_TIMOUT 8 /*TDLS Broadcast Discovery Timeout*/
  46 static void stop_tdls_timer()
  47 {
  48         if (tdls_timer_id > 0) {
  49                 g_source_remove(tdls_timer_id);
  50                 tdls_timer_id = 0;
  51         }
  52 }
  53
  54 void __netconfig_wifi_notify_tdls_event(const char *sig_name, const char *peer_mac)
  55 {
  56         GVariantBuilder *builder;
  57         GVariant *params;
  58         builder = g_variant_builder_new(G_VARIANT_TYPE("a{sv}"));
  59         g_variant_builder_add(builder, "{sv}", "peermac", g_variant_new_string(peer_mac));
  60
  61         params = g_variant_new("(@a{sv})", g_variant_builder_end(builder));
  62         g_variant_builder_unref(builder);
  63
  64         netconfig_dbus_emit_signal(NULL,
  65                                 NETCONFIG_WIFI_PATH,
  66                                 NETCONFIG_WIFI_INTERFACE,
  67                                 sig_name,
  68                                 params);
  69
  70         INFO("Sent signal (%s) Peer Mac (%s)", sig_name, peer_mac);
  71 }
  72
  73 void __netconfig_wifi_notify_tdls_discover_event(const char *peer_mac, int discover_type)
  74 {
  75         GVariantBuilder *builder;
  76         GVariant *params;
  77         builder = g_variant_builder_new(G_VARIANT_TYPE("a{sv}"));
  78
  79         g_variant_builder_add(builder, "{sv}", "peermac", g_variant_new_string(peer_mac));
  80         g_variant_builder_add(builder, "{sv}", "discover_type", g_variant_new_int32(discover_type));
  81
  82         params = g_variant_new("(@a{sv})", g_variant_builder_end(builder));
  83         g_variant_builder_unref(builder);
  84
  85         netconfig_dbus_emit_signal(NULL,
  86                                 NETCONFIG_WIFI_PATH,
  87                                 NETCONFIG_WIFI_INTERFACE,
  88                                 "TDLSPeerFound",
  89                                 params);
  90
  91         INFO("Sent signal (%s) Peer Mac (%s)", "TDLSPeerFound", peer_mac);
  92 }
  93
  94 static gboolean _tdls_timer_discover_event(gpointer user_data)
  95 {
  96
  97         if (tdls_timer_id == 0)
  98                 return FALSE;
  99
 100         INFO("[TDLS Discover Timer Expired");
 101         __netconfig_wifi_notify_tdls_discover_event("00:00:00:00:00:00", is_discover_broadcast);
 102         is_discover_broadcast = 0;
 103         stop_tdls_timer();
 104         return FALSE;
 105 }
 106
 107 static GVariant * __netconfig_wifi_tdls_send_dbus_str(const char* method, const char *str)
 108 {
 109         GVariant *message = NULL;
 110         const char *if_path = NULL;
 111         GVariant *params = NULL;
 112
 113         if_path = netconfig_wifi_get_supplicant_interface();
 114         if (if_path == NULL) {
 115                 ERR("Fail to get wpa_supplicant DBus path");
 116                 return NULL;
 117         }
 118
 119         params = g_variant_new("(s)", str);
 120         INFO("[TizenMW-->WPAS]Sent Dbus Method :[%s],value[%s]", method, str);
 121         message = netconfig_invoke_dbus_method(SUPPLICANT_SERVICE,
 122                         if_path, SUPPLICANT_INTERFACE ".Interface", method, params);
 123
 124         INFO("TDLS Returned from Blocking method for Send DBUS Command");
 125         return message;
 126 }
 127
 128 gboolean handle_tdls_connect(Wifi *wifi, GDBusMethodInvocation *context,
 129                         gchar *peer_mac_Addr)
 130 {
 131         DBG("[TizenMW-->WPAS]: TDLS Setup Request: [%s]", peer_mac_Addr);
 132
 133         if (is_connected) {
 134                 ERR(" Already TDLS Connection !!!");
 135         } else {
 136                 GVariant *message = NULL;
 137                 message = __netconfig_wifi_tdls_send_dbus_str("TDLSSetup", (const char*)peer_mac_Addr);
 138
 139                 if (message == NULL) {
 140                         ERR(" TDLS : failed to connect !!!");
 141                         netconfig_error_dbus_method_return(context, NETCONFIG_ERROR_INTERNAL, "FailTdlsConnect");
 142                         return FALSE;
 143                 }
 144
 145                 DBG("[TizenMW<--WPAS] TDLS DBUS Command sent successfully");
 146                 g_variant_unref(message);
 147                 is_connected = 1;
 148         }
 149
 150         wifi_complete_tdls_connect(wifi, context, 1);
 151         return TRUE;
 152 }
 153
 154 gboolean handle_tdls_discover(Wifi *wifi, GDBusMethodInvocation *context,
 155                         gchar *peer_mac_Addr)
 156 {
 157         DBG("TDLS Discover Request: [%s]", peer_mac_Addr);
 158         int discover_timeout = 0;
 159
 160         GVariant *message = NULL;
 161         message = __netconfig_wifi_tdls_send_dbus_str("TDLSDiscover", (const char*)peer_mac_Addr);
 162
 163         if (message == NULL) {
 164                 ERR(" TDLS : failed to discover !!!");
 165                 netconfig_error_dbus_method_return(context, NETCONFIG_ERROR_INTERNAL, "FailTdlsDiscover");
 166                 wifi_complete_tdls_discover(wifi, context, NETCONFIG_ERROR_TDLS_FAIL_DISCOVER);
 167                 return FALSE;
 168         }
 169
 170         DBG(" TDLS DBUS Command sent successfully");
 171         g_variant_unref(message);
 172
 173         if (NULL != strstr(peer_mac_Addr, "ff:ff:ff:ff:ff:ff")) {
 174                 DBG("TDLS: Broadcast Discovery");
 175                 is_discover_broadcast = 1;
 176                 discover_timeout = TDLS_DISCOVER_BROADCAST_TIMOUT;
 177         } else {
 178                 is_discover_broadcast = 0;
 179                 discover_timeout = TDLS_DISCOVER_TIMOUT;
 180         }
 181
 182         tdls_timer_id = g_timeout_add_seconds(discover_timeout,
 183                                         _tdls_timer_discover_event, NULL);
 184
 185         wifi_complete_tdls_discover(wifi, context, NETCONFIG_ERROR_TDLS_NO_ERROR);
 186         return TRUE;
 187 }
 188
 189 gboolean handle_tdls_disconnect(Wifi *wifi, GDBusMethodInvocation *context,
 190                         gchar *peer_mac_Addr)
 191 {
 192         DBG("[TizenMW-->WPAS]: TDLS Teardown Request: [%s]", peer_mac_Addr);
 193
 194         if (!is_connected) {
 195                 ERR(" Already TDLS disconnection !!!");
 196                 wifi_complete_tdls_disconnect(wifi, context, NETCONFIG_ERROR_TDLS_ALREADY_DONE);
 197         } else {
 198                 GVariant *message = NULL;
 199                 message = __netconfig_wifi_tdls_send_dbus_str("TDLSTeardown", (const char*)peer_mac_Addr);
 200
 201                 if (message == NULL) {
 202                         ERR(" TDLS : failed to disconnect !!!");
 203                         netconfig_error_dbus_method_return(context, NETCONFIG_ERROR_INTERNAL, "FailTdlsDisconnect");
 204                         return FALSE;
 205                 }
 206
 207                 DBG("[TizenMW<--WPAS] TDLS DBUS Command sent successfully");
 208                 g_variant_unref(message);
 209                 is_connected = 0;
 210         }
 211
 212         wifi_complete_tdls_disconnect(wifi, context, NETCONFIG_ERROR_TDLS_NO_ERROR);
 213         return TRUE;
 214 }
 215
 216 gboolean handle_tdls_connected_peer(Wifi *wifi, GDBusMethodInvocation *context)
 217 {
 218         DBG("[TizenMW-->WPAS]: TDLS Connected Peer Request: ");
 219
 220         GVariant *message = NULL;
 221         const gchar* reply_str = NULL;
 222
 223         if (peer_mac == NULL) {
 224                 INFO("TDLS: No Active Connection");
 225                 wifi_complete_tdls_connected_peer(wifi, context, "00.00.00.00.00.00");
 226                 return TRUE;
 227         }
 228         message = __netconfig_wifi_tdls_send_dbus_str("TDLSStatus", (const char*)peer_mac);
 229         if (message == NULL) {
 230                 ERR(" TDLS : No active TDLS Link Setup !!!");
 231                 wifi_complete_tdls_connected_peer(wifi, context, "00.00.00.00.00.00");
 232                 return TRUE;
 233         }
 234
 235         g_variant_get(message, "(&s)", &reply_str);
 236         INFO("TDLS reply: [%s]", reply_str);
 237         INFO("TDLS :peer_mac [%s]", peer_mac);
 238
 239         if (g_strcmp0("connected", reply_str) != 0) {
 240                 ERR("[TizenMW<--WPAS] TDLS Connection not available");
 241                 wifi_complete_tdls_connected_peer(wifi, context, "00.00.00.00.00.00");
 242                 g_variant_unref(message);
 243                 return TRUE;
 244         }
 245
 246         INFO("TDLS Connection available, Peer Mac address %s", peer_mac);
 247         wifi_complete_tdls_connected_peer(wifi, context, peer_mac);
 248
 249         g_variant_unref(message);
 250         return TRUE;
 251 }
 252
 253 void netconfig_wifi_tdls_connected_event(GVariant *message)
 254 {
 255
 256         DBG("WiFi TDLS Connected EVENT");
 257         if (is_connected == 1) {
 258                 INFO("TDLS Peer already connected");
 259                 g_free(peer_mac);
 260         }
 261
 262         g_variant_get(message, "(s)", &peer_mac);
 263         INFO("Peer Mac Address: [%s]", peer_mac);
 264
 265         is_connected = 1;
 266         __netconfig_wifi_notify_tdls_event("TDLSConnect", peer_mac);
 267 }
 268
 269 void netconfig_wifi_tdls_disconnected_event(GVariant *message)
 270 {
 271         DBG("WiFi TDLS Disconnected EVENT");
 272         const gchar *peer_mac_addr = NULL;
 273
 274         g_variant_get(message, "(&s)", &peer_mac_addr);
 275         if (g_strcmp0(peer_mac, peer_mac_addr) == 0) {
 276                 INFO("TDLS Peer Disconnected Mac Address: [%s]", peer_mac);
 277                 is_connected = 0;
 278                 __netconfig_wifi_notify_tdls_event("TDLSDisconnect", peer_mac);
 279         } else
 280                 INFO("TDLS Peer Disconnected peer_mac(%s) != peer_mac_address(%s)", peer_mac, peer_mac_addr);
 281 }
 282
 283
 284 void netconfig_wifi_tdls_peer_found_event(GVariant *message)
 285 {
 286         DBG("WiFi TDLS Discovery EVENT");
 287         const gchar *peer_mac_addr = NULL;
 288
 289         g_variant_get(message, "(s)", &peer_mac_addr);
 290         INFO("Discover Peer Mac Address: [%s]", peer_mac_addr);
 291
 292
 293         if (is_discover_broadcast == 0)
 294                 stop_tdls_timer();
 295
 296         __netconfig_wifi_notify_tdls_discover_event(peer_mac_addr, is_discover_broadcast);
 297 }
 298