src/utils/util.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 <unistd.h>
  21 #include <string.h>
  22 #include <sys/wait.h>
  23 #include <sys/stat.h>
  24 #include <sys/socket.h>
  25 #include <sys/ioctl.h>
  26 #include <net/if.h>
  27 #include <vconf.h>
  28 #include <vconf-keys.h>
  29 #include <wifi-direct.h>
  30 #include <syspopup_caller.h>
  31 #include <aul.h>
  32
  33 #include "log.h"
  34 #include "util.h"
  35 #include "neterror.h"
  36 #include "wifi-state.h"
  37
  38 #define WIFI_MAC_INFO_FILE      "/opt/etc/.mac.info"
  39 #define WIFI_MAC_INFO_LENGTH    17
  40 #define WIFI_DEV_NAME           "wlan0"
  41
  42 GKeyFile *netconfig_keyfile_load(const char *pathname)
  43 {
  44         GKeyFile *keyfile = NULL;
  45         GError *error = NULL;
  46
  47         keyfile = g_key_file_new();
  48         if (g_key_file_load_from_file(keyfile, pathname, 0, &error) != TRUE) {
  49                 DBG("Unable to open %s, error %s", pathname, error->message);
  50                 g_error_free(error);
  51
  52                 g_key_file_free(keyfile);
  53                 keyfile = NULL;
  54         }
  55
  56         return keyfile;
  57 }
  58
  59 void netconfig_keyfile_save(GKeyFile *keyfile, const char *pathname)
  60 {
  61         gsize size = 0;
  62         GError *error = NULL;
  63         gchar *keydata = NULL;
  64         gchar *needle = NULL, *directory = NULL;
  65
  66         directory = g_strdup(pathname);
  67         needle = g_strrstr(directory, "/");
  68
  69         if (needle != NULL)
  70                 *needle = '\0';
  71
  72         if (directory == NULL || (*directory) == '\0') {
  73                 g_free(directory);
  74                 return;
  75         }
  76
  77         if (g_file_test(directory, G_FILE_TEST_IS_DIR) != TRUE) {
  78                 if (g_mkdir_with_parents(directory,
  79                                 S_IRUSR | S_IWUSR | S_IXUSR) != 0) {
  80                         g_free(directory);
  81                         return;
  82                 }
  83         }
  84         g_free(directory);
  85
  86         keydata = g_key_file_to_data(keyfile, &size, &error);
  87         if (g_file_set_contents(pathname, keydata, size, &error) != TRUE) {
  88                 DBG("Unable to save %s, error %s", pathname, error->message);
  89                 g_error_free(error);
  90         }
  91
  92         if (chmod(pathname, S_IRUSR | S_IWUSR) != 0)
  93                 DBG("Unable to change permission of %s", pathname);
  94
  95         g_free(keydata);
  96
  97         g_key_file_free(keyfile);
  98 }
  99
 100 void netconfig_start_timer_seconds(guint secs,
 101                 gboolean(*callback) (gpointer), void *user_data, guint *timer_id)
 102 {
 103         guint t_id = 0;
 104
 105         if (callback == NULL) {
 106                 ERR("callback function is NULL");
 107                 return;
 108         }
 109
 110         if ((timer_id != NULL && *timer_id != 0)) {
 111                 ERR("timer already is registered");
 112                 return;
 113         }
 114
 115         t_id = g_timeout_add_seconds(secs, callback, user_data);
 116
 117         if (t_id == 0) {
 118                 ERR("Can't add timer");
 119                 return;
 120         }
 121
 122         if (timer_id != NULL)
 123                 *timer_id = t_id;
 124 }
 125
 126 void netconfig_start_timer(guint msecs,
 127                 gboolean(*callback) (gpointer), void *user_data, guint *timer_id)
 128 {
 129         guint t_id = 0;
 130
 131         INFO("Register timer with callback pointer (%p)", callback);
 132
 133         if (callback == NULL) {
 134                 ERR("callback function is NULL");
 135                 return;
 136         }
 137
 138         if ((timer_id != NULL && *timer_id != 0)) {
 139                 ERR("timer already is registered");
 140                 return;
 141         }
 142
 143         t_id = g_timeout_add(msecs, callback, user_data);
 144
 145         if (t_id == 0) {
 146                 ERR("Can't add timer");
 147                 return;
 148         }
 149
 150         if (timer_id != NULL)
 151                 *timer_id = t_id;
 152 }
 153
 154 void netconfig_stop_timer(guint *timer_id)
 155 {
 156         if (timer_id == NULL) {
 157                 ERR("timer is NULL");
 158                 return;
 159         }
 160
 161         if (*timer_id != 0) {
 162                 g_source_remove(*timer_id);
 163                 *timer_id = 0;
 164         }
 165 }
 166
 167 static gboolean __netconfig_test_device_picker()
 168 {
 169         char *favorite_wifi_service = NULL;
 170
 171         favorite_wifi_service = netconfig_wifi_get_favorite_service();
 172         if (favorite_wifi_service != NULL) {
 173                 g_free(favorite_wifi_service);
 174                 return FALSE;
 175         }
 176
 177         return TRUE;
 178 }
 179
 180 static void __netconfig_pop_device_picker(void)
 181 {
 182         int rv = 0;
 183         bundle *b = NULL;
 184         int wifi_ug_state = 0;
 185
 186         vconf_get_int(VCONFKEY_WIFI_UG_RUN_STATE, &wifi_ug_state);
 187         if (wifi_ug_state == VCONFKEY_WIFI_UG_RUN_STATE_ON_FOREGROUND)
 188                 return;
 189
 190         b = bundle_create();
 191
 192         DBG("Launch Wi-Fi device picker");
 193         rv = syspopup_launch("wifi-qs", b);
 194
 195         bundle_free(b);
 196 }
 197
 198 static gboolean __netconfig_wifi_try_device_picker(gpointer data)
 199 {
 200         if (__netconfig_test_device_picker() == TRUE)
 201                 __netconfig_pop_device_picker();
 202
 203         return FALSE;
 204 }
 205
 206 static guint __netconfig_wifi_device_picker_timer_id(gboolean is_set_method,
 207                 guint timer_id)
 208 {
 209         static guint netconfig_wifi_device_picker_service_timer = 0;
 210
 211         if (is_set_method != TRUE)
 212                 return netconfig_wifi_device_picker_service_timer;
 213
 214         if (netconfig_wifi_device_picker_service_timer != timer_id)
 215                 netconfig_wifi_device_picker_service_timer = timer_id;
 216
 217         return netconfig_wifi_device_picker_service_timer;
 218 }
 219
 220 static void __netconfig_wifi_device_picker_set_timer_id(guint timer_id)
 221 {
 222         __netconfig_wifi_device_picker_timer_id(TRUE, timer_id);
 223 }
 224
 225 static guint __netconfig_wifi_device_picker_get_timer_id(void)
 226 {
 227         return __netconfig_wifi_device_picker_timer_id(FALSE, -1);
 228 }
 229
 230 void netconfig_wifi_device_picker_service_start(void)
 231 {
 232         int wifi_ug_state;
 233         const int NETCONFIG_WIFI_DEVICE_PICKER_INTERVAL = 700;
 234         int hotspot_wifi_state = VCONFKEY_MOBILE_HOTSPOT_WIFI_OFF;
 235         guint timer_id = 0;
 236
 237         vconf_get_int(VCONFKEY_WIFI_UG_RUN_STATE, &wifi_ug_state);
 238         if (wifi_ug_state == VCONFKEY_WIFI_UG_RUN_STATE_ON_FOREGROUND)
 239                 return;
 240
 241         /* If Wi-Fi tethering is pending on, don't show device picker UI*/
 242         vconf_get_int(VCONFKEY_MOBILE_HOTSPOT_WIFI_STATE, &hotspot_wifi_state);
 243         if (hotspot_wifi_state == VCONFKEY_MOBILE_HOTSPOT_WIFI_PENDING_ON) {
 244                 DBG("hotspot_wifi_state %d", hotspot_wifi_state);
 245                 return;
 246         }
 247
 248         DBG("Register device picker timer with %d milliseconds",
 249                         NETCONFIG_WIFI_DEVICE_PICKER_INTERVAL);
 250
 251         netconfig_start_timer(NETCONFIG_WIFI_DEVICE_PICKER_INTERVAL,
 252                         __netconfig_wifi_try_device_picker, NULL, &timer_id);
 253
 254         __netconfig_wifi_device_picker_set_timer_id(timer_id);
 255 }
 256
 257 void netconfig_wifi_device_picker_service_stop(void)
 258 {
 259         guint timer_id = 0;
 260
 261         timer_id = __netconfig_wifi_device_picker_get_timer_id();
 262         if (timer_id == 0)
 263                 return;
 264
 265         DBG("Clear device picker timer with timer_id %d", timer_id);
 266
 267         netconfig_stop_timer(&timer_id);
 268
 269         __netconfig_wifi_device_picker_set_timer_id(timer_id);
 270 }
 271
 272 gboolean netconfig_is_wifi_direct_on(void)
 273 {
 274         int wifi_direct_state = 0;
 275
 276         vconf_get_int(VCONFKEY_WIFI_DIRECT_STATE, &wifi_direct_state);
 277
 278         DBG("Wi-Fi direct mode %d", wifi_direct_state);
 279         return (wifi_direct_state != 0) ? TRUE : FALSE;
 280 }
 281
 282 gboolean netconfig_is_wifi_tethering_on(void)
 283 {
 284         int wifi_tethering_state = 0;
 285
 286         vconf_get_int(VCONFKEY_MOBILE_HOTSPOT_MODE, &wifi_tethering_state);
 287
 288         DBG("Wi-Ti tethering mode %d", wifi_tethering_state);
 289         if (wifi_tethering_state & VCONFKEY_MOBILE_HOTSPOT_MODE_WIFI)
 290                 return TRUE;
 291
 292         return FALSE;
 293 }
 294
 295 /* args[] and env[] should be terminated with NULL pointer */
 296 gboolean netconfig_execute_file(const char *file_path,
 297                 char *const args[], char *const env[])
 298 {
 299         pid_t pid = 0;
 300         int rv = 0;
 301         errno = 0;
 302
 303         if (!(pid = fork())) {
 304                 register unsigned int index = 0;
 305                 INFO("pid(%d), ppid (%d)", getpid(), getppid());
 306                 INFO("Inside child, exec (%s) command", file_path);
 307
 308                 index = 0;
 309                 while (args[index] != NULL) {
 310                         INFO(" %s", args[index]);
 311                         index++;
 312                 }
 313
 314                 errno = 0;
 315                 if (execve(file_path, args, env) == -1) {
 316                         DBG("Fail to execute command...(%s)",
 317                                         strerror(errno));
 318                         return FALSE;
 319                 }
 320         } else if (pid > 0) {
 321                 if (waitpid(pid, &rv, 0) == -1) {
 322                         DBG("wait pid (%u) rv (%d)", pid, rv);
 323
 324                         if (WIFEXITED(rv)) {
 325                                 DBG("exited, rv=%d", WEXITSTATUS(rv));
 326                         } else if (WIFSIGNALED(rv)) {
 327                                 DBG("killed by signal %d", WTERMSIG(rv));
 328                         } else if (WIFSTOPPED(rv)) {
 329                                 DBG("stopped by signal %d", WSTOPSIG(rv));
 330                         } else if (WIFCONTINUED(rv)) {
 331                                 DBG("continued");
 332                         }
 333                 }
 334                 return TRUE;
 335         }
 336
 337         DBG("failed to fork()...(%s)", strerror(errno));
 338         return FALSE;
 339 }
 340
 341 gboolean netconfig_iface_wifi_launch_direct(NetconfigWifi *wifi, GError **error)
 342 {
 343         gboolean ret = TRUE;
 344
 345         DBG("Launch Wi-Fi direct daemon");
 346
 347         const char *path = "/usr/bin/wifi-direct-server.sh";
 348         char *const args[] = { "wifi-direct-server.sh", "start", NULL};
 349         char *const env[] = { NULL };
 350
 351         ret = netconfig_execute_file(path, args, env);
 352
 353         if (ret != TRUE) {
 354                 INFO("Failed to launch Wi-Fi direct daemon");
 355
 356                 netconfig_error_wifi_direct_failed(error);
 357         }
 358
 359         return ret;
 360 }
 361
 362 void netconfig_add_wifi_found_notification(void)
 363 {
 364         int ret;
 365         bundle *b = bundle_create();
 366
 367         bundle_add(b, "_SYSPOPUP_TYPE_", "add_found_ap_noti");
 368
 369         ret = aul_launch_app("org.tizen.net-popup", b);
 370
 371         bundle_free(b);
 372
 373         if (ret >= 0)
 374                 DBG("Successfully added notification");
 375         else
 376                 ERR("Unable to launch noti-popup. Err = %d", ret);
 377 }
 378
 379 void netconfig_del_wifi_found_notification(void)
 380 {
 381         int ret;
 382         bundle *b = bundle_create();
 383
 384         bundle_add(b, "_SYSPOPUP_TYPE_", "del_found_ap_noti");
 385
 386         ret = aul_launch_app("org.tizen.net-popup", b);
 387
 388         bundle_free(b);
 389
 390         if (ret >= 0)
 391                 DBG("Successfully deleted notification");
 392         else
 393                 ERR("Unable to launch noti-popup. Err = %d", ret);
 394 }
 395
 396
 397 void netconfig_set_wifi_mac_address(void)
 398 {
 399         FILE *fp = NULL;
 400         struct ifreq ifr;
 401         int ctl_sk = -1;
 402         char buf[WIFI_MAC_INFO_LENGTH + 1];
 403         char *mac_info;
 404
 405         mac_info = vconf_get_str(VCONFKEY_WIFI_BSSID_ADDRESS);
 406         if (mac_info == NULL) {
 407                 ERR("Failed to open vconf key %s", VCONFKEY_WIFI_BSSID_ADDRESS);
 408         }
 409
 410         INFO("%s : %s", VCONFKEY_WIFI_BSSID_ADDRESS, mac_info);
 411
 412         fp = fopen(WIFI_MAC_INFO_FILE, "r");
 413         if (fp != NULL) {
 414                 if (fgets(buf, sizeof(buf), fp) == NULL) {
 415                         ERR("Failed to get MAC info from %s", WIFI_MAC_INFO_FILE);
 416                         goto done;
 417                 }
 418
 419                 INFO("%s : %s", WIFI_MAC_INFO_FILE, buf);
 420
 421                 if (strlen(buf) < WIFI_MAC_INFO_LENGTH) {
 422                         ERR("Failed to get MAC info from %s", WIFI_MAC_INFO_FILE);
 423                         goto done;
 424                 }
 425
 426                 buf[WIFI_MAC_INFO_LENGTH] = '\0';
 427         } else {
 428                 // not MAC into file use ioctl to get MAC
 429                 ctl_sk = socket(PF_INET,SOCK_DGRAM,0);
 430                 if (ctl_sk < 0 ) {
 431                         ERR("Failed to open socket");
 432                         goto done;
 433                 }
 434
 435                 memset(&ifr, 0, sizeof(struct ifreq));
 436                 strncpy(ifr.ifr_name, WIFI_DEV_NAME, sizeof(ifr.ifr_name) - 1);
 437                 ifr.ifr_name[sizeof(ifr.ifr_name) - 1] = 0;
 438
 439                 if (ioctl(ctl_sk, SIOCGIFHWADDR, &ifr) != 0) {
 440                         ERR("Failed to SIOCGIFHWADDR ioctl");
 441                         goto done;
 442                 }
 443
 444                 snprintf(buf, WIFI_MAC_INFO_LENGTH + 1,
 445                          "%02x:%02x:%02x:%02x:%02x:%02x",
 446                          (unsigned char)ifr.ifr_hwaddr.sa_data[0],
 447                          (unsigned char)ifr.ifr_hwaddr.sa_data[1],
 448                          (unsigned char)ifr.ifr_hwaddr.sa_data[2],
 449                          (unsigned char)ifr.ifr_hwaddr.sa_data[3],
 450                          (unsigned char)ifr.ifr_hwaddr.sa_data[4],
 451                          (unsigned char)ifr.ifr_hwaddr.sa_data[5]);
 452
 453                 INFO("%s MAC address: %s", WIFI_DEV_NAME, buf);
 454         }
 455
 456         if (mac_info && (g_str_equal(mac_info, buf) == TRUE))
 457                 goto done;
 458
 459         if (vconf_set_str(VCONFKEY_WIFI_BSSID_ADDRESS, buf) != 0)
 460                 ERR("Failed to set MAC info to %s", VCONFKEY_WIFI_BSSID_ADDRESS);
 461
 462 done:
 463         g_free(mac_info);
 464
 465         if (fp != NULL) {
 466                 fclose(fp);
 467         }
 468
 469         if (ctl_sk >= 0) {
 470                 close(ctl_sk);
 471         }
 472 }