src/wifi-firmware.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 <errno.h>
  21 #include <vconf.h>
  22 #include <vconf-keys.h>
  23
  24 #include "log.h"
  25 #include "util.h"
  26 #include "netdbus.h"
  27 #include "emulator.h"
  28 #include "neterror.h"
  29 #include "netsupplicant.h"
  30 #include "wifi-firmware.h"
  31 #include "network-statistics.h"
  32
  33 #define WLAN_DRIVER_SCRIPT                      "/usr/bin/wlan.sh"
  34 #define WLAN_IFACE_NAME                         "wlan0"
  35
  36 #define WLAN_P2P_IFACE_NAME_TV                  "p2p0"
  37 #define WLAN_P2P_IFACE_NAME_COMMON                      "wlan0"
  38 #define WLAN_P2P_IFACE_NAME ((TIZEN_TV) ? (WLAN_P2P_IFACE_NAME_TV) : (WLAN_P2P_IFACE_NAME_COMMON))
  39
  40 static int __netconfig_sta_firmware_start(void)
  41 {
  42         int rv = 0;
  43         const char *path = WLAN_DRIVER_SCRIPT;
  44         char *const args[] = { "/usr/bin/wlan.sh", "start", NULL };
  45         char *const envs[] = { NULL };
  46
  47         rv = netconfig_execute_file(path, args, envs);
  48         if (rv < 0)
  49                 return -EIO;
  50
  51         rv = netconfig_interface_up(WLAN_IFACE_NAME);
  52         if (rv != TRUE)
  53                 return -EIO;
  54
  55         DBG("Successfully loaded wireless device driver");
  56         return 0;
  57 }
  58
  59 static int __netconfig_sta_firmware_stop(void)
  60 {
  61         int rv = 0;
  62         const char *path = WLAN_DRIVER_SCRIPT;
  63         char *const args[] = { "/usr/bin/wlan.sh", "stop", NULL };
  64         char *const envs[] = { NULL };
  65
  66         /* Update statistics before driver remove */
  67         netconfig_wifi_statistics_update_powered_off();
  68
  69         rv = netconfig_interface_down(WLAN_IFACE_NAME);
  70         if (rv != TRUE)
  71                 return -EIO;
  72
  73         rv = netconfig_execute_file(path, args, envs);
  74         if (rv < 0)
  75                 return -EIO;
  76
  77         DBG("Successfully removed wireless device driver");
  78         return 0;
  79 }
  80
  81 static int __netconfig_p2p_firmware_start(void)
  82 {
  83         if (!netconfig_check_feature_supported(NETCONFIG_SUPPORTED_FEATURE_WIFI_DIRECT))
  84                 return -ENODEV;
  85
  86         int rv = 0;
  87         const char *path = WLAN_DRIVER_SCRIPT;
  88         char *const args[] = { "/usr/bin/wlan.sh", "p2p", NULL };
  89         char *const envs[] = { NULL };
  90
  91         rv = netconfig_execute_file(path, args, envs);
  92         if (rv < 0)
  93                 return -EIO;
  94
  95 #if defined TIZEN_WLAN_USE_P2P_INTERFACE
  96         rv = netconfig_interface_up(WLAN_P2P_IFACE_NAME);
  97         if (rv != TRUE)
  98                 return -EIO;
  99 #endif
 100
 101         DBG("Successfully loaded p2p device driver");
 102         return 0;
 103 }
 104
 105 static int __netconfig_p2p_firmware_stop(void)
 106 {
 107         if (!netconfig_check_feature_supported(NETCONFIG_SUPPORTED_FEATURE_WIFI_DIRECT))
 108                 return -ENODEV;
 109
 110         int rv = 0;
 111         const char *path = WLAN_DRIVER_SCRIPT;
 112         char *const args[] = { "/usr/bin/wlan.sh", "stop", NULL };
 113         char *const envs[] = { NULL };
 114
 115         rv = netconfig_interface_down(WLAN_IFACE_NAME);
 116         if (rv != TRUE)
 117                 return -EIO;
 118
 119         rv = netconfig_execute_file(path, args, envs);
 120         if (rv < 0)
 121                 return -EIO;
 122
 123         DBG("Successfully removed p2p device driver");
 124         return 0;
 125 }
 126
 127 static int __netconfig_softap_firmware_start(void)
 128 {
 129         if (!netconfig_check_feature_supported(NETCONFIG_SUPPORTED_FEATURE_TETHERING))
 130                 return -ENODEV;
 131
 132         int rv = 0;
 133         const char *path = WLAN_DRIVER_SCRIPT;
 134         char *const args[] = { "/usr/bin/wlan.sh", "softap", NULL };
 135         char *const envs[] = { NULL };
 136
 137         rv = netconfig_execute_file(path, args, envs);
 138         if (rv < 0)
 139                 return -EIO;
 140
 141         if (netconfig_interface_up(WLAN_IFACE_NAME) == FALSE)
 142                 return -EIO;
 143
 144         DBG("Successfully loaded softap device driver");
 145         return 0;
 146 }
 147
 148 static int __netconfig_softap_firmware_stop(void)
 149 {
 150         if (!netconfig_check_feature_supported(NETCONFIG_SUPPORTED_FEATURE_TETHERING))
 151                 return -ENODEV;
 152
 153         int rv = 0;
 154         const char *path = WLAN_DRIVER_SCRIPT;
 155         char *const args[] = { "/usr/bin/wlan.sh", "stop", NULL };
 156         char *const envs[] = { NULL };
 157
 158         rv = netconfig_interface_down(WLAN_IFACE_NAME);
 159         if (rv != TRUE)
 160                 return -EIO;
 161
 162         rv = netconfig_execute_file(path, args, envs);
 163         if (rv < 0)
 164                 return -EIO;
 165
 166         DBG("Successfully removed softap device driver");
 167         return 0;
 168 }
 169
 170 static int __netconfig_wifi_firmware_start(enum netconfig_wifi_firmware type)
 171 {
 172         if (emulator_is_emulated() == TRUE)
 173                 return -EIO;
 174
 175         switch (type) {
 176         case NETCONFIG_WIFI_STA:
 177                 return __netconfig_sta_firmware_start();
 178         case NETCONFIG_WIFI_P2P:
 179                 return __netconfig_p2p_firmware_start();
 180         case NETCONFIG_WIFI_SOFTAP:
 181                 return __netconfig_softap_firmware_start();
 182         default:
 183                 break;
 184         }
 185
 186         return -ENXIO;
 187 }
 188
 189 static int __netconfig_wifi_firmware_stop(enum netconfig_wifi_firmware type)
 190 {
 191         if (emulator_is_emulated() == TRUE)
 192                 return -EIO;
 193
 194         switch (type) {
 195         case NETCONFIG_WIFI_STA:
 196                 return __netconfig_sta_firmware_stop();
 197         case NETCONFIG_WIFI_P2P:
 198                 return __netconfig_p2p_firmware_stop();
 199         case NETCONFIG_WIFI_SOFTAP:
 200                 return __netconfig_softap_firmware_stop();
 201         default:
 202                 break;
 203         }
 204
 205         return -ENXIO;
 206 }
 207
 208 int netconfig_wifi_firmware(enum netconfig_wifi_firmware type, gboolean enable)
 209 {
 210         int err;
 211         static enum netconfig_wifi_firmware current_driver = NETCONFIG_WIFI_OFF;
 212         enum netconfig_wifi_firmware alias = type;
 213
 214         DBG("Wi-Fi current firmware %d (type: %d %s)", current_driver, type,
 215                                                         enable == TRUE ? "enable" : "disable");
 216
 217         if (enable == FALSE) {
 218                 if (current_driver == NETCONFIG_WIFI_OFF) {
 219                         return -EALREADY;
 220                 } else if (current_driver == alias) {
 221
 222                         err = __netconfig_wifi_firmware_stop(type);
 223                         if (err < 0 && err != -EALREADY)
 224                                 return err;
 225
 226                         current_driver = NETCONFIG_WIFI_OFF;
 227
 228                         return err;
 229                 }
 230
 231                 return -EIO;
 232         }
 233
 234         if (current_driver > NETCONFIG_WIFI_OFF) {
 235                 if (current_driver == alias)
 236                         return -EALREADY;
 237
 238                 return -EIO;
 239         }
 240
 241         err = __netconfig_wifi_firmware_start(type);
 242         if (err < 0)
 243                 DBG("Failed to execute script file");
 244         else
 245                 current_driver = alias;
 246
 247         return err;
 248 }
 249
 250 gboolean handle_start(WifiFirmware *firmware, GDBusMethodInvocation *context, const gchar *device)
 251 {
 252         int err;
 253
 254         g_return_val_if_fail(firmware != NULL, TRUE);
 255
 256         DBG("Wi-Fi firmware start %s", device != NULL ? device : "null");
 257
 258         if (g_strcmp0("p2p", device) == 0)
 259                 err = netconfig_wifi_firmware(NETCONFIG_WIFI_P2P, TRUE);
 260         else if (g_strcmp0("softap", device) == 0)
 261                 err = netconfig_wifi_firmware(NETCONFIG_WIFI_SOFTAP, TRUE);
 262         else
 263                 err = -EINVAL;
 264
 265         if (err < 0) {
 266                 if (err == -EALREADY)
 267                         netconfig_error_already_exists(context);
 268                 else if (g_strcmp0("softap", device) == 0 && err == -EIO && netconfig_is_wifi_direct_on() == FALSE) {
 269                         if (netconfig_wifi_firmware(NETCONFIG_WIFI_P2P, FALSE) == 0 && netconfig_wifi_firmware(NETCONFIG_WIFI_SOFTAP, TRUE) == 0) {
 270                                 wifi_firmware_complete_start(firmware, context);
 271                                 return TRUE;
 272                         } else
 273                                 netconfig_error_wifi_driver_failed(context);
 274                 } else
 275                         netconfig_error_wifi_driver_failed(context);
 276
 277                 return TRUE;
 278         }
 279
 280         wifi_firmware_complete_start(firmware, context);
 281         return TRUE;
 282 }
 283
 284 gboolean handle_stop(WifiFirmware *firmware, GDBusMethodInvocation *context, const gchar *device)
 285 {
 286         int err;
 287
 288         g_return_val_if_fail(firmware != NULL, TRUE);
 289
 290         DBG("Wi-Fi firmware stop %s", device != NULL ? device : "null");
 291
 292         if (g_strcmp0("p2p", device) == 0)
 293                 err = netconfig_wifi_firmware(NETCONFIG_WIFI_P2P, FALSE);
 294         else if (g_strcmp0("softap", device) == 0)
 295                 err = netconfig_wifi_firmware(NETCONFIG_WIFI_SOFTAP, FALSE);
 296         else
 297                 err = -EINVAL;
 298
 299         if (err < 0) {
 300                 if (err == -EALREADY)
 301                         netconfig_error_already_exists(context);
 302                 else
 303                         netconfig_error_wifi_driver_failed(context);
 304
 305                 return TRUE;
 306         }
 307
 308         wifi_firmware_complete_stop(firmware, context);
 309         return TRUE;
 310 }