| /* |
| * |
| * Copyright (c) 2020-2021 Project CHIP Authors |
| * Copyright (c) 2018 Nest Labs, Inc. |
| * All rights reserved. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| /* this file behaves like a config.h, comes first */ |
| #include <platform/internal/CHIPDeviceLayerInternal.h> |
| |
| #include <platform/CommissionableDataProvider.h> |
| #include <platform/ConnectivityManager.h> |
| |
| #include <lib/support/CodeUtils.h> |
| #include <lib/support/logging/CHIPLogging.h> |
| #include <platform/DeviceInstanceInfoProvider.h> |
| #include <platform/DiagnosticDataProvider.h> |
| #include <platform/ESP32/ESP32Utils.h> |
| #include <platform/ESP32/NetworkCommissioningDriver.h> |
| #include <platform/ESP32/route_hook/ESP32RouteHook.h> |
| #include <platform/internal/BLEManager.h> |
| |
| #include "esp_event.h" |
| #include "esp_netif.h" |
| #include "esp_wifi.h" |
| |
| #include <lwip/dns.h> |
| #include <lwip/ip_addr.h> |
| #include <lwip/nd6.h> |
| #include <lwip/netif.h> |
| |
| #if CHIP_DEVICE_CONFIG_ENABLE_WIFI |
| |
| using namespace ::chip; |
| using namespace ::chip::Inet; |
| using namespace ::chip::System; |
| using namespace ::chip::TLV; |
| using chip::DeviceLayer::Internal::ESP32Utils; |
| |
| namespace chip { |
| namespace DeviceLayer { |
| |
| ConnectivityManager::WiFiStationMode ConnectivityManagerImpl::_GetWiFiStationMode(void) |
| { |
| if (mWiFiStationMode != kWiFiStationMode_ApplicationControlled) |
| { |
| wifi_mode_t curWiFiMode; |
| mWiFiStationMode = |
| (esp_wifi_get_mode(&curWiFiMode) == ESP_OK && (curWiFiMode == WIFI_MODE_APSTA || curWiFiMode == WIFI_MODE_STA)) |
| ? kWiFiStationMode_Enabled |
| : kWiFiStationMode_Disabled; |
| } |
| return mWiFiStationMode; |
| } |
| |
| bool ConnectivityManagerImpl::_IsWiFiStationEnabled(void) |
| { |
| return GetWiFiStationMode() == kWiFiStationMode_Enabled; |
| } |
| |
| CHIP_ERROR ConnectivityManagerImpl::_SetWiFiStationMode(WiFiStationMode val) |
| { |
| CHIP_ERROR err = CHIP_NO_ERROR; |
| |
| VerifyOrExit(val != kWiFiStationMode_NotSupported, err = CHIP_ERROR_INVALID_ARGUMENT); |
| |
| if (val != kWiFiStationMode_ApplicationControlled) |
| { |
| bool autoConnect = (val == kWiFiStationMode_Enabled); |
| err = Internal::ESP32Utils::SetAPMode(autoConnect); |
| SuccessOrExit(err); |
| |
| DeviceLayer::SystemLayer().ScheduleWork(DriveStationState, NULL); |
| } |
| |
| if (mWiFiStationMode != val) |
| { |
| ChipLogProgress(DeviceLayer, "WiFi station mode change: %s -> %s", WiFiStationModeToStr(mWiFiStationMode), |
| WiFiStationModeToStr(val)); |
| } |
| |
| mWiFiStationMode = val; |
| |
| exit: |
| return err; |
| } |
| |
| bool ConnectivityManagerImpl::_IsWiFiStationProvisioned(void) |
| { |
| return Internal::ESP32Utils::IsStationProvisioned(); |
| } |
| |
| void ConnectivityManagerImpl::_ClearWiFiStationProvision(void) |
| { |
| if (mWiFiStationMode != kWiFiStationMode_ApplicationControlled) |
| { |
| CHIP_ERROR error = chip::DeviceLayer::Internal::ESP32Utils::ClearWiFiStationProvision(); |
| if (error != CHIP_NO_ERROR) |
| { |
| ChipLogError(DeviceLayer, "ClearWiFiStationProvision failed: %s", chip::ErrorStr(error)); |
| return; |
| } |
| DeviceLayer::SystemLayer().ScheduleWork(DriveStationState, NULL); |
| #if CHIP_DEVICE_CONFIG_ENABLE_WIFI_AP |
| DeviceLayer::SystemLayer().ScheduleWork(DriveAPState, NULL); |
| #endif // CHIP_DEVICE_CONFIG_ENABLE_WIFI_AP |
| } |
| } |
| |
| #if CHIP_DEVICE_CONFIG_ENABLE_WIFI_AP |
| CHIP_ERROR ConnectivityManagerImpl::_SetWiFiAPMode(WiFiAPMode val) |
| { |
| CHIP_ERROR err = CHIP_NO_ERROR; |
| |
| VerifyOrExit(val != kWiFiAPMode_NotSupported, err = CHIP_ERROR_INVALID_ARGUMENT); |
| |
| if (mWiFiAPMode != val) |
| { |
| ChipLogProgress(DeviceLayer, "WiFi AP mode change: %s -> %s", WiFiAPModeToStr(mWiFiAPMode), WiFiAPModeToStr(val)); |
| } |
| |
| mWiFiAPMode = val; |
| |
| DeviceLayer::SystemLayer().ScheduleWork(DriveAPState, NULL); |
| |
| exit: |
| return err; |
| } |
| |
| void ConnectivityManagerImpl::_DemandStartWiFiAP(void) |
| { |
| if (mWiFiAPMode == kWiFiAPMode_OnDemand || mWiFiAPMode == kWiFiAPMode_OnDemand_NoStationProvision) |
| { |
| mLastAPDemandTime = System::SystemClock().GetMonotonicTimestamp(); |
| DeviceLayer::SystemLayer().ScheduleWork(DriveAPState, NULL); |
| } |
| } |
| |
| void ConnectivityManagerImpl::_StopOnDemandWiFiAP(void) |
| { |
| if (mWiFiAPMode == kWiFiAPMode_OnDemand || mWiFiAPMode == kWiFiAPMode_OnDemand_NoStationProvision) |
| { |
| mLastAPDemandTime = System::Clock::kZero; |
| DeviceLayer::SystemLayer().ScheduleWork(DriveAPState, NULL); |
| } |
| } |
| |
| void ConnectivityManagerImpl::_MaintainOnDemandWiFiAP(void) |
| { |
| if (mWiFiAPMode == kWiFiAPMode_OnDemand || mWiFiAPMode == kWiFiAPMode_OnDemand_NoStationProvision) |
| { |
| if (mWiFiAPState == kWiFiAPState_Activating || mWiFiAPState == kWiFiAPState_Active) |
| { |
| mLastAPDemandTime = System::SystemClock().GetMonotonicTimestamp(); |
| } |
| } |
| } |
| |
| void ConnectivityManagerImpl::_SetWiFiAPIdleTimeout(System::Clock::Timeout val) |
| { |
| mWiFiAPIdleTimeout = val; |
| DeviceLayer::SystemLayer().ScheduleWork(DriveAPState, NULL); |
| } |
| #endif // CHIP_DEVICE_CONFIG_ENABLE_WIFI_AP |
| |
| #define WIFI_BAND_2_4GHZ 2400 |
| #define WIFI_BAND_5_0GHZ 5000 |
| |
| static uint16_t Map2400MHz(const uint8_t inChannel) |
| { |
| uint16_t frequency = 0; |
| |
| if (inChannel >= 1 && inChannel <= 13) |
| { |
| // Cast is OK because we definitely fit in 16 bits. |
| frequency = static_cast<uint16_t>(2412 + ((inChannel - 1) * 5)); |
| } |
| else if (inChannel == 14) |
| { |
| frequency = 2484; |
| } |
| |
| return frequency; |
| } |
| |
| static uint16_t Map5000MHz(const uint8_t inChannel) |
| { |
| uint16_t frequency = 0; |
| |
| switch (inChannel) |
| { |
| |
| case 183: |
| frequency = 4915; |
| break; |
| case 184: |
| frequency = 4920; |
| break; |
| case 185: |
| frequency = 4925; |
| break; |
| case 187: |
| frequency = 4935; |
| break; |
| case 188: |
| frequency = 4940; |
| break; |
| case 189: |
| frequency = 4945; |
| break; |
| case 192: |
| frequency = 4960; |
| break; |
| case 196: |
| frequency = 4980; |
| break; |
| case 7: |
| frequency = 5035; |
| break; |
| case 8: |
| frequency = 5040; |
| break; |
| case 9: |
| frequency = 5045; |
| break; |
| case 11: |
| frequency = 5055; |
| break; |
| case 12: |
| frequency = 5060; |
| break; |
| case 16: |
| frequency = 5080; |
| break; |
| case 34: |
| frequency = 5170; |
| break; |
| case 36: |
| frequency = 5180; |
| break; |
| case 38: |
| frequency = 5190; |
| break; |
| case 40: |
| frequency = 5200; |
| break; |
| case 42: |
| frequency = 5210; |
| break; |
| case 44: |
| frequency = 5220; |
| break; |
| case 46: |
| frequency = 5230; |
| break; |
| case 48: |
| frequency = 5240; |
| break; |
| case 52: |
| frequency = 5260; |
| break; |
| case 56: |
| frequency = 5280; |
| break; |
| case 60: |
| frequency = 5300; |
| break; |
| case 64: |
| frequency = 5320; |
| break; |
| case 100: |
| frequency = 5500; |
| break; |
| case 104: |
| frequency = 5520; |
| break; |
| case 108: |
| frequency = 5540; |
| break; |
| case 112: |
| frequency = 5560; |
| break; |
| case 116: |
| frequency = 5580; |
| break; |
| case 120: |
| frequency = 5600; |
| break; |
| case 124: |
| frequency = 5620; |
| break; |
| case 128: |
| frequency = 5640; |
| break; |
| case 132: |
| frequency = 5660; |
| break; |
| case 136: |
| frequency = 5680; |
| break; |
| case 140: |
| frequency = 5700; |
| break; |
| case 149: |
| frequency = 5745; |
| break; |
| case 153: |
| frequency = 5765; |
| break; |
| case 157: |
| frequency = 5785; |
| break; |
| case 161: |
| frequency = 5805; |
| break; |
| case 165: |
| frequency = 5825; |
| break; |
| } |
| |
| return frequency; |
| } |
| |
| static uint16_t MapFrequency(const uint16_t inBand, const uint8_t inChannel) |
| { |
| uint16_t frequency = 0; |
| |
| if (inBand == WIFI_BAND_2_4GHZ) |
| { |
| frequency = Map2400MHz(inChannel); |
| } |
| else if (inBand == WIFI_BAND_5_0GHZ) |
| { |
| frequency = Map5000MHz(inChannel); |
| } |
| |
| return frequency; |
| } |
| |
| CHIP_ERROR ConnectivityManagerImpl::_GetAndLogWiFiStatsCounters(void) |
| { |
| esp_err_t err; |
| wifi_config_t wifiConfig; |
| uint8_t primaryChannel; |
| wifi_second_chan_t secondChannel; |
| uint16_t freq; |
| uint16_t bssid; |
| |
| IgnoreUnusedVariable(freq); |
| IgnoreUnusedVariable(bssid); |
| err = esp_wifi_get_config(WIFI_IF_STA, &wifiConfig); |
| if (err != ESP_OK) |
| { |
| ChipLogError(DeviceLayer, "esp_wifi_get_config() failed: %s", esp_err_to_name(err)); |
| return ESP32Utils::MapError(err); |
| } |
| |
| err = esp_wifi_get_channel(&primaryChannel, &secondChannel); |
| if (err != ESP_OK) |
| { |
| ChipLogError(DeviceLayer, "esp_wifi_get_channel() failed: %s", esp_err_to_name(err)); |
| return ESP32Utils::MapError(err); |
| } |
| |
| freq = MapFrequency(WIFI_BAND_2_4GHZ, primaryChannel); |
| static_assert(std::is_same<std::remove_reference<decltype(wifiConfig.sta.bssid[5])>::type, uint8_t>::value, |
| "Our bits are going to start overlapping"); |
| bssid = static_cast<uint16_t>((wifiConfig.sta.bssid[4] << 8) | wifiConfig.sta.bssid[5]); |
| ChipLogProgress(DeviceLayer, |
| "WiFi-Telemetry\n" |
| "BSSID: %x\n" |
| "freq: %d\n", |
| bssid, freq); |
| return CHIP_NO_ERROR; |
| } |
| |
| CHIP_ERROR ConnectivityManagerImpl::InitWiFi() |
| { |
| mLastStationConnectFailTime = System::Clock::kZero; |
| mWiFiStationMode = kWiFiStationMode_Disabled; |
| mWiFiStationState = kWiFiStationState_NotConnected; |
| mWiFiStationReconnectInterval = System::Clock::Milliseconds32(CHIP_DEVICE_CONFIG_WIFI_STATION_RECONNECT_INTERVAL); |
| |
| #if CHIP_DEVICE_CONFIG_ENABLE_WIFI_AP |
| mLastAPDemandTime = System::Clock::kZero; |
| mWiFiAPMode = kWiFiAPMode_Disabled; |
| mWiFiAPState = kWiFiAPState_NotActive; |
| mWiFiAPIdleTimeout = System::Clock::Milliseconds32(CHIP_DEVICE_CONFIG_WIFI_AP_IDLE_TIMEOUT); |
| #endif // CHIP_DEVICE_CONFIG_ENABLE_WIFI_AP |
| |
| mFlags.SetRaw(0); |
| |
| // TODO Initialize the Chip Addressing and Routing Module. |
| |
| // Ensure that ESP station mode is enabled. |
| ReturnErrorOnFailure(Internal::ESP32Utils::EnableStationMode()); |
| |
| // If there is no persistent station provision... |
| if (!IsWiFiStationProvisioned()) |
| { |
| // If the code has been compiled with a default WiFi station provision, configure that now. |
| if (CONFIG_DEFAULT_WIFI_SSID[0] != 0) |
| { |
| ChipLogProgress(DeviceLayer, "Setting default WiFi station configuration (SSID: %s)", CONFIG_DEFAULT_WIFI_SSID); |
| |
| // Set a default station configuration. |
| wifi_config_t wifiConfig; |
| memset(&wifiConfig, 0, sizeof(wifiConfig)); |
| memcpy(wifiConfig.sta.ssid, CONFIG_DEFAULT_WIFI_SSID, |
| std::min(sizeof(wifiConfig.sta.ssid), strlen(CONFIG_DEFAULT_WIFI_SSID))); |
| memcpy(wifiConfig.sta.password, CONFIG_DEFAULT_WIFI_PASSWORD, |
| std::min(sizeof(wifiConfig.sta.password), strlen(CONFIG_DEFAULT_WIFI_PASSWORD))); |
| wifiConfig.sta.scan_method = WIFI_ALL_CHANNEL_SCAN; |
| wifiConfig.sta.sort_method = WIFI_CONNECT_AP_BY_SIGNAL; |
| esp_err_t err = esp_wifi_set_config(WIFI_IF_STA, &wifiConfig); |
| if (err != ESP_OK) |
| { |
| ChipLogError(DeviceLayer, "esp_wifi_set_config() failed: %s", esp_err_to_name(err)); |
| } |
| |
| // Enable WiFi station mode. |
| ReturnErrorOnFailure(SetWiFiStationMode(kWiFiStationMode_Enabled)); |
| } |
| |
| // Otherwise, ensure WiFi station mode is disabled. |
| else |
| { |
| ReturnErrorOnFailure(SetWiFiStationMode(kWiFiStationMode_Disabled)); |
| } |
| } |
| |
| // Force AP mode off for now. |
| ReturnErrorOnFailure(Internal::ESP32Utils::SetAPMode(false)); |
| |
| // Queue work items to bootstrap the AP and station state machines once the Chip event loop is running. |
| ReturnErrorOnFailure(DeviceLayer::SystemLayer().ScheduleWork(DriveStationState, NULL)); |
| |
| #if CHIP_DEVICE_CONFIG_ENABLE_WIFI_AP |
| ReturnErrorOnFailure(DeviceLayer::SystemLayer().ScheduleWork(DriveAPState, NULL)); |
| #endif // CHIP_DEVICE_CONFIG_ENABLE_WIFI_AP |
| |
| return CHIP_NO_ERROR; |
| } |
| |
| void ConnectivityManagerImpl::OnWiFiPlatformEvent(const ChipDeviceEvent * event) |
| { |
| // Handle ESP system events... |
| if (event->Type == DeviceEventType::kESPSystemEvent) |
| { |
| if (event->Platform.ESPSystemEvent.Base == WIFI_EVENT) |
| { |
| switch (event->Platform.ESPSystemEvent.Id) |
| { |
| case WIFI_EVENT_SCAN_DONE: |
| ChipLogProgress(DeviceLayer, "WIFI_EVENT_SCAN_DONE"); |
| NetworkCommissioning::ESPWiFiDriver::GetInstance().OnScanWiFiNetworkDone(); |
| break; |
| case WIFI_EVENT_STA_START: |
| ChipLogProgress(DeviceLayer, "WIFI_EVENT_STA_START"); |
| DriveStationState(); |
| break; |
| case WIFI_EVENT_STA_CONNECTED: |
| ChipLogProgress(DeviceLayer, "WIFI_EVENT_STA_CONNECTED"); |
| if (mWiFiStationState == kWiFiStationState_Connecting) |
| { |
| ChangeWiFiStationState(kWiFiStationState_Connecting_Succeeded); |
| } |
| DriveStationState(); |
| break; |
| case WIFI_EVENT_STA_DISCONNECTED: |
| ChipLogProgress(DeviceLayer, "WIFI_EVENT_STA_DISCONNECTED"); |
| NetworkCommissioning::ESPWiFiDriver::GetInstance().SetLastDisconnectReason(event); |
| if (mWiFiStationState == kWiFiStationState_Connecting) |
| { |
| ChangeWiFiStationState(kWiFiStationState_Connecting_Failed); |
| } |
| DriveStationState(); |
| break; |
| case WIFI_EVENT_STA_STOP: |
| ChipLogProgress(DeviceLayer, "WIFI_EVENT_STA_STOP"); |
| DriveStationState(); |
| break; |
| #if CHIP_DEVICE_CONFIG_ENABLE_WIFI_AP |
| case WIFI_EVENT_AP_START: |
| ChipLogProgress(DeviceLayer, "WIFI_EVENT_AP_START"); |
| ChangeWiFiAPState(kWiFiAPState_Active); |
| DriveAPState(); |
| break; |
| case WIFI_EVENT_AP_STOP: |
| ChipLogProgress(DeviceLayer, "WIFI_EVENT_AP_STOP"); |
| ChangeWiFiAPState(kWiFiAPState_NotActive); |
| DriveAPState(); |
| break; |
| case WIFI_EVENT_AP_STACONNECTED: |
| ChipLogProgress(DeviceLayer, "WIFI_EVENT_AP_STACONNECTED"); |
| MaintainOnDemandWiFiAP(); |
| break; |
| #endif // CHIP_DEVICE_CONFIG_ENABLE_WIFI_AP |
| default: |
| break; |
| } |
| } |
| |
| if (event->Platform.ESPSystemEvent.Base == IP_EVENT) |
| { |
| switch (event->Platform.ESPSystemEvent.Id) |
| { |
| case IP_EVENT_STA_GOT_IP: |
| ChipLogProgress(DeviceLayer, "IP_EVENT_STA_GOT_IP"); |
| OnStationIPv4AddressAvailable(event->Platform.ESPSystemEvent.Data.IpGotIp); |
| break; |
| case IP_EVENT_STA_LOST_IP: |
| ChipLogProgress(DeviceLayer, "IP_EVENT_STA_LOST_IP"); |
| OnStationIPv4AddressLost(); |
| break; |
| case IP_EVENT_GOT_IP6: |
| ChipLogProgress(DeviceLayer, "IP_EVENT_GOT_IP6"); |
| if (strcmp(esp_netif_get_ifkey(event->Platform.ESPSystemEvent.Data.IpGotIp6.esp_netif), "WIFI_STA_DEF") == 0) |
| { |
| OnStationIPv6AddressAvailable(event->Platform.ESPSystemEvent.Data.IpGotIp6); |
| } |
| break; |
| default: |
| break; |
| } |
| } |
| } |
| } |
| |
| void ConnectivityManagerImpl::_OnWiFiScanDone() |
| { |
| // Schedule a call to DriveStationState method in case a station connect attempt was |
| // deferred because the scan was in progress. |
| DeviceLayer::SystemLayer().ScheduleWork(DriveStationState, NULL); |
| } |
| |
| void ConnectivityManagerImpl::_OnWiFiStationProvisionChange() |
| { |
| // Schedule a call to the DriveStationState method to adjust the station state as needed. |
| DeviceLayer::SystemLayer().ScheduleWork(DriveStationState, NULL); |
| } |
| |
| void ConnectivityManagerImpl::DriveStationState() |
| { |
| bool stationConnected; |
| |
| // Refresh the current station mode. Specifically, this reads the ESP auto_connect flag, |
| // which determine whether the WiFi station mode is kWiFiStationMode_Enabled or |
| // kWiFiStationMode_Disabled. |
| GetWiFiStationMode(); |
| |
| // If the station interface is NOT under application control... |
| if (mWiFiStationMode != kWiFiStationMode_ApplicationControlled) |
| { |
| // Ensure that the ESP WiFi layer is started. |
| ReturnOnFailure(Internal::ESP32Utils::StartWiFiLayer()); |
| |
| // Ensure that station mode is enabled in the ESP WiFi layer. |
| ReturnOnFailure(Internal::ESP32Utils::EnableStationMode()); |
| } |
| |
| // Determine if the ESP WiFi layer thinks the station interface is currently connected. |
| ReturnOnFailure(Internal::ESP32Utils::IsStationConnected(stationConnected)); |
| |
| // If the station interface is currently connected ... |
| if (stationConnected) |
| { |
| // Advance the station state to Connected if it was previously NotConnected or |
| // a previously initiated connect attempt succeeded. |
| if (mWiFiStationState == kWiFiStationState_NotConnected || mWiFiStationState == kWiFiStationState_Connecting_Succeeded) |
| { |
| ChangeWiFiStationState(kWiFiStationState_Connected); |
| ChipLogProgress(DeviceLayer, "WiFi station interface connected"); |
| mLastStationConnectFailTime = System::Clock::kZero; |
| OnStationConnected(); |
| } |
| |
| // If the WiFi station interface is no longer enabled, or no longer provisioned, |
| // disconnect the station from the AP, unless the WiFi station mode is currently |
| // under application control. |
| if (mWiFiStationMode != kWiFiStationMode_ApplicationControlled && |
| (mWiFiStationMode != kWiFiStationMode_Enabled || !IsWiFiStationProvisioned())) |
| { |
| ChipLogProgress(DeviceLayer, "Disconnecting WiFi station interface"); |
| esp_err_t err = esp_wifi_disconnect(); |
| if (err != ESP_OK) |
| { |
| ChipLogError(DeviceLayer, "esp_wifi_disconnect() failed: %s", esp_err_to_name(err)); |
| return; |
| } |
| |
| ChangeWiFiStationState(kWiFiStationState_Disconnecting); |
| } |
| } |
| |
| // Otherwise the station interface is NOT connected to an AP, so... |
| else |
| { |
| System::Clock::Timestamp now = System::SystemClock().GetMonotonicTimestamp(); |
| |
| // Advance the station state to NotConnected if it was previously Connected or Disconnecting, |
| // or if a previous initiated connect attempt failed. |
| if (mWiFiStationState == kWiFiStationState_Connected || mWiFiStationState == kWiFiStationState_Disconnecting || |
| mWiFiStationState == kWiFiStationState_Connecting_Failed) |
| { |
| WiFiStationState prevState = mWiFiStationState; |
| ChangeWiFiStationState(kWiFiStationState_NotConnected); |
| if (prevState != kWiFiStationState_Connecting_Failed) |
| { |
| ChipLogProgress(DeviceLayer, "WiFi station interface disconnected"); |
| mLastStationConnectFailTime = System::Clock::kZero; |
| OnStationDisconnected(); |
| } |
| else |
| { |
| mLastStationConnectFailTime = now; |
| } |
| } |
| |
| // If the WiFi station interface is now enabled and provisioned (and by implication, |
| // not presently under application control), AND the system is not in the process of |
| // scanning, then... |
| if (mWiFiStationMode == kWiFiStationMode_Enabled && IsWiFiStationProvisioned()) |
| { |
| // Initiate a connection to the AP if we haven't done so before, or if enough |
| // time has passed since the last attempt. |
| if (mLastStationConnectFailTime == System::Clock::kZero || |
| now >= mLastStationConnectFailTime + mWiFiStationReconnectInterval) |
| { |
| ChipLogProgress(DeviceLayer, "Attempting to connect WiFi station interface"); |
| esp_err_t err = esp_wifi_connect(); |
| if (err != ESP_OK) |
| { |
| ChipLogError(DeviceLayer, "esp_wifi_connect() failed: %s", esp_err_to_name(err)); |
| return; |
| } |
| |
| ChangeWiFiStationState(kWiFiStationState_Connecting); |
| } |
| |
| // Otherwise arrange another connection attempt at a suitable point in the future. |
| else |
| { |
| System::Clock::Timeout timeToNextConnect = (mLastStationConnectFailTime + mWiFiStationReconnectInterval) - now; |
| |
| ChipLogProgress(DeviceLayer, "Next WiFi station reconnect in %" PRIu32 " ms", |
| System::Clock::Milliseconds32(timeToNextConnect).count()); |
| |
| ReturnOnFailure(DeviceLayer::SystemLayer().StartTimer(timeToNextConnect, DriveStationState, NULL)); |
| } |
| } |
| } |
| |
| ChipLogProgress(DeviceLayer, "Done driving station state, nothing else to do..."); |
| // Kick-off any pending network scan that might have been deferred due to the activity |
| // of the WiFi station. |
| } |
| |
| void ConnectivityManagerImpl::OnStationConnected() |
| { |
| // Assign an IPv6 link local address to the station interface. |
| esp_err_t err = esp_netif_create_ip6_linklocal(esp_netif_get_handle_from_ifkey("WIFI_STA_DEF")); |
| if (err != ESP_OK) |
| { |
| ChipLogError(DeviceLayer, "esp_netif_create_ip6_linklocal() failed for WIFI_STA_DEF interface: %s", esp_err_to_name(err)); |
| } |
| NetworkCommissioning::ESPWiFiDriver::GetInstance().OnConnectWiFiNetwork(); |
| // TODO Invoke WARM to perform actions that occur when the WiFi station interface comes up. |
| |
| // Alert other components of the new state. |
| ChipDeviceEvent event; |
| event.Type = DeviceEventType::kWiFiConnectivityChange; |
| event.WiFiConnectivityChange.Result = kConnectivity_Established; |
| PlatformMgr().PostEventOrDie(&event); |
| WiFiDiagnosticsDelegate * delegate = GetDiagnosticDataProvider().GetWiFiDiagnosticsDelegate(); |
| |
| if (delegate) |
| { |
| delegate->OnConnectionStatusChanged( |
| chip::to_underlying(chip::app::Clusters::WiFiNetworkDiagnostics::ConnectionStatusEnum::kConnected)); |
| } |
| |
| UpdateInternetConnectivityState(); |
| } |
| |
| void ConnectivityManagerImpl::OnStationDisconnected() |
| { |
| // TODO Invoke WARM to perform actions that occur when the WiFi station interface goes down. |
| |
| // Alert other components of the new state. |
| ChipDeviceEvent event; |
| event.Type = DeviceEventType::kWiFiConnectivityChange; |
| event.WiFiConnectivityChange.Result = kConnectivity_Lost; |
| PlatformMgr().PostEventOrDie(&event); |
| WiFiDiagnosticsDelegate * delegate = GetDiagnosticDataProvider().GetWiFiDiagnosticsDelegate(); |
| uint16_t reason = NetworkCommissioning::ESPWiFiDriver::GetInstance().GetLastDisconnectReason(); |
| uint8_t associationFailureCause = |
| chip::to_underlying(chip::app::Clusters::WiFiNetworkDiagnostics::AssociationFailureCauseEnum::kUnknown); |
| |
| switch (reason) |
| { |
| case WIFI_REASON_ASSOC_TOOMANY: |
| case WIFI_REASON_NOT_ASSOCED: |
| case WIFI_REASON_ASSOC_NOT_AUTHED: |
| case WIFI_REASON_4WAY_HANDSHAKE_TIMEOUT: |
| case WIFI_REASON_GROUP_CIPHER_INVALID: |
| case WIFI_REASON_UNSUPP_RSN_IE_VERSION: |
| case WIFI_REASON_AKMP_INVALID: |
| case WIFI_REASON_CIPHER_SUITE_REJECTED: |
| case WIFI_REASON_PAIRWISE_CIPHER_INVALID: |
| associationFailureCause = |
| chip::to_underlying(chip::app::Clusters::WiFiNetworkDiagnostics::AssociationFailureCauseEnum::kAssociationFailed); |
| if (delegate) |
| { |
| delegate->OnAssociationFailureDetected(associationFailureCause, reason); |
| } |
| break; |
| case WIFI_REASON_NOT_AUTHED: |
| case WIFI_REASON_MIC_FAILURE: |
| case WIFI_REASON_IE_IN_4WAY_DIFFERS: |
| case WIFI_REASON_INVALID_RSN_IE_CAP: |
| case WIFI_REASON_INVALID_PMKID: |
| case WIFI_REASON_802_1X_AUTH_FAILED: |
| associationFailureCause = |
| chip::to_underlying(chip::app::Clusters::WiFiNetworkDiagnostics::AssociationFailureCauseEnum::kAuthenticationFailed); |
| if (delegate) |
| { |
| delegate->OnAssociationFailureDetected(associationFailureCause, reason); |
| } |
| break; |
| case WIFI_REASON_NO_AP_FOUND: |
| associationFailureCause = |
| chip::to_underlying(chip::app::Clusters::WiFiNetworkDiagnostics::AssociationFailureCauseEnum::kSsidNotFound); |
| if (delegate) |
| { |
| delegate->OnAssociationFailureDetected(associationFailureCause, reason); |
| } |
| case WIFI_REASON_BEACON_TIMEOUT: |
| case WIFI_REASON_AUTH_EXPIRE: |
| case WIFI_REASON_AUTH_LEAVE: |
| case WIFI_REASON_ASSOC_LEAVE: |
| case WIFI_REASON_ASSOC_EXPIRE: |
| break; |
| |
| default: |
| if (delegate) |
| { |
| delegate->OnAssociationFailureDetected(associationFailureCause, reason); |
| } |
| break; |
| } |
| |
| if (delegate) |
| { |
| delegate->OnDisconnectionDetected(reason); |
| delegate->OnConnectionStatusChanged( |
| chip::to_underlying(chip::app::Clusters::WiFiNetworkDiagnostics::ConnectionStatusEnum::kNotConnected)); |
| } |
| |
| UpdateInternetConnectivityState(); |
| } |
| |
| void ConnectivityManagerImpl::ChangeWiFiStationState(WiFiStationState newState) |
| { |
| if (mWiFiStationState != newState) |
| { |
| ChipLogProgress(DeviceLayer, "WiFi station state change: %s -> %s", WiFiStationStateToStr(mWiFiStationState), |
| WiFiStationStateToStr(newState)); |
| mWiFiStationState = newState; |
| SystemLayer().ScheduleLambda([]() { NetworkCommissioning::ESPWiFiDriver::GetInstance().OnNetworkStatusChange(); }); |
| } |
| } |
| |
| void ConnectivityManagerImpl::DriveStationState(::chip::System::Layer * aLayer, void * aAppState) |
| { |
| sInstance.DriveStationState(); |
| } |
| |
| #if CHIP_DEVICE_CONFIG_ENABLE_WIFI_AP |
| void ConnectivityManagerImpl::DriveAPState() |
| { |
| CHIP_ERROR err = CHIP_NO_ERROR; |
| WiFiAPState targetState; |
| bool espAPModeEnabled; |
| |
| // Determine if AP mode is currently enabled in the ESP WiFi layer. |
| err = Internal::ESP32Utils::IsAPEnabled(espAPModeEnabled); |
| SuccessOrExit(err); |
| |
| // Adjust the Connectivity Manager's AP state to match the state in the WiFi layer. |
| if (espAPModeEnabled && (mWiFiAPState == kWiFiAPState_NotActive || mWiFiAPState == kWiFiAPState_Deactivating)) |
| { |
| ChangeWiFiAPState(kWiFiAPState_Activating); |
| } |
| if (!espAPModeEnabled && (mWiFiAPState == kWiFiAPState_Active || mWiFiAPState == kWiFiAPState_Activating)) |
| { |
| ChangeWiFiAPState(kWiFiAPState_Deactivating); |
| } |
| |
| // If the AP interface is not under application control... |
| if (mWiFiAPMode != kWiFiAPMode_ApplicationControlled) |
| { |
| // Ensure the ESP WiFi layer is started. |
| err = Internal::ESP32Utils::StartWiFiLayer(); |
| SuccessOrExit(err); |
| |
| // Determine the target (desired) state for AP interface... |
| |
| // The target state is 'NotActive' if the application has expressly disabled the AP interface. |
| if (mWiFiAPMode == kWiFiAPMode_Disabled) |
| { |
| targetState = kWiFiAPState_NotActive; |
| } |
| |
| // The target state is 'Active' if the application has expressly enabled the AP interface. |
| else if (mWiFiAPMode == kWiFiAPMode_Enabled) |
| { |
| targetState = kWiFiAPState_Active; |
| } |
| |
| // The target state is 'Active' if the AP mode is 'On demand, when no station is available' |
| // and the station interface is not provisioned or the application has disabled the station |
| // interface. |
| else if (mWiFiAPMode == kWiFiAPMode_OnDemand_NoStationProvision && |
| (!IsWiFiStationProvisioned() || GetWiFiStationMode() == kWiFiStationMode_Disabled)) |
| { |
| targetState = kWiFiAPState_Active; |
| } |
| |
| // The target state is 'Active' if the AP mode is one of the 'On demand' modes and there |
| // has been demand for the AP within the idle timeout period. |
| else if (mWiFiAPMode == kWiFiAPMode_OnDemand || mWiFiAPMode == kWiFiAPMode_OnDemand_NoStationProvision) |
| { |
| System::Clock::Timestamp now = System::SystemClock().GetMonotonicTimestamp(); |
| |
| if (mLastAPDemandTime != System::Clock::kZero && now < (mLastAPDemandTime + mWiFiAPIdleTimeout)) |
| { |
| targetState = kWiFiAPState_Active; |
| |
| // Compute the amount of idle time before the AP should be deactivated and |
| // arm a timer to fire at that time. |
| System::Clock::Timeout apTimeout = (mLastAPDemandTime + mWiFiAPIdleTimeout) - now; |
| err = DeviceLayer::SystemLayer().StartTimer(apTimeout, DriveAPState, NULL); |
| SuccessOrExit(err); |
| ChipLogProgress(DeviceLayer, "Next WiFi AP timeout in %" PRIu32 " ms", |
| System::Clock::Milliseconds32(apTimeout).count()); |
| } |
| else |
| { |
| targetState = kWiFiAPState_NotActive; |
| } |
| } |
| |
| // Otherwise the target state is 'NotActive'. |
| else |
| { |
| targetState = kWiFiAPState_NotActive; |
| } |
| |
| // If the current AP state does not match the target state... |
| if (mWiFiAPState != targetState) |
| { |
| // If the target state is 'Active' and the current state is NOT 'Activating', enable |
| // and configure the AP interface, and then enter the 'Activating' state. Eventually |
| // a SYSTEM_EVENT_AP_START event will be received from the ESP WiFi layer which will |
| // cause the state to transition to 'Active'. |
| if (targetState == kWiFiAPState_Active) |
| { |
| if (mWiFiAPState != kWiFiAPState_Activating) |
| { |
| err = Internal::ESP32Utils::SetAPMode(true); |
| SuccessOrExit(err); |
| |
| err = ConfigureWiFiAP(); |
| SuccessOrExit(err); |
| |
| ChangeWiFiAPState(kWiFiAPState_Activating); |
| } |
| } |
| |
| // Otherwise, if the target state is 'NotActive' and the current state is not 'Deactivating', |
| // disable the AP interface and enter the 'Deactivating' state. Later a SYSTEM_EVENT_AP_STOP |
| // event will move the AP state to 'NotActive'. |
| else |
| { |
| if (mWiFiAPState != kWiFiAPState_Deactivating) |
| { |
| err = Internal::ESP32Utils::SetAPMode(false); |
| SuccessOrExit(err); |
| |
| ChangeWiFiAPState(kWiFiAPState_Deactivating); |
| } |
| } |
| } |
| } |
| |
| // If AP is active, but the interface doesn't have an IPv6 link-local |
| // address, assign one now. |
| if (mWiFiAPState == kWiFiAPState_Active && Internal::ESP32Utils::IsInterfaceUp("WIFI_AP_DEF") && |
| !Internal::ESP32Utils::HasIPv6LinkLocalAddress("WIFI_AP_DEF")) |
| { |
| esp_err_t error = esp_netif_create_ip6_linklocal(esp_netif_get_handle_from_ifkey("WIFI_AP_DEF")); |
| if (error != ESP_OK) |
| { |
| ChipLogError(DeviceLayer, "esp_netif_create_ip6_linklocal() failed for WIFI_AP_DEF interface: %s", |
| esp_err_to_name(error)); |
| goto exit; |
| } |
| } |
| |
| exit: |
| if (err != CHIP_NO_ERROR && mWiFiAPMode != kWiFiAPMode_ApplicationControlled) |
| { |
| SetWiFiAPMode(kWiFiAPMode_Disabled); |
| Internal::ESP32Utils::SetAPMode(false); |
| } |
| } |
| |
| CHIP_ERROR ConnectivityManagerImpl::ConfigureWiFiAP() |
| { |
| wifi_config_t wifiConfig; |
| |
| memset(&wifiConfig, 0, sizeof(wifiConfig)); |
| |
| uint16_t discriminator; |
| ReturnErrorOnFailure(GetCommissionableDataProvider()->GetSetupDiscriminator(discriminator)); |
| |
| uint16_t vendorId; |
| uint16_t productId; |
| ReturnErrorOnFailure(GetDeviceInstanceInfoProvider()->GetVendorId(vendorId)); |
| ReturnErrorOnFailure(GetDeviceInstanceInfoProvider()->GetProductId(productId)); |
| |
| snprintf((char *) wifiConfig.ap.ssid, sizeof(wifiConfig.ap.ssid), "%s%03X-%04X-%04X", CHIP_DEVICE_CONFIG_WIFI_AP_SSID_PREFIX, |
| discriminator, vendorId, productId); |
| wifiConfig.ap.channel = CHIP_DEVICE_CONFIG_WIFI_AP_CHANNEL; |
| wifiConfig.ap.authmode = WIFI_AUTH_OPEN; |
| wifiConfig.ap.max_connection = CHIP_DEVICE_CONFIG_WIFI_AP_MAX_STATIONS; |
| wifiConfig.ap.beacon_interval = CHIP_DEVICE_CONFIG_WIFI_AP_BEACON_INTERVAL; |
| ChipLogProgress(DeviceLayer, "Configuring WiFi AP: SSID %s, channel %u", wifiConfig.ap.ssid, wifiConfig.ap.channel); |
| esp_err_t err = esp_wifi_set_config(WIFI_IF_AP, &wifiConfig); |
| if (err != ESP_OK) |
| { |
| ChipLogError(DeviceLayer, "esp_wifi_set_config(WIFI_IF_AP) failed: %s", esp_err_to_name(err)); |
| return ESP32Utils::MapError(err); |
| } |
| |
| return CHIP_NO_ERROR; |
| } |
| |
| void ConnectivityManagerImpl::ChangeWiFiAPState(WiFiAPState newState) |
| { |
| if (mWiFiAPState != newState) |
| { |
| ChipLogProgress(DeviceLayer, "WiFi AP state change: %s -> %s", WiFiAPStateToStr(mWiFiAPState), WiFiAPStateToStr(newState)); |
| mWiFiAPState = newState; |
| } |
| } |
| |
| void ConnectivityManagerImpl::DriveAPState(::chip::System::Layer * aLayer, void * aAppState) |
| { |
| sInstance.DriveAPState(); |
| } |
| #endif // CHIP_DEVICE_CONFIG_ENABLE_WIFI_AP |
| |
| void ConnectivityManagerImpl::UpdateInternetConnectivityState(void) |
| { |
| bool haveIPv4Conn = false; |
| bool haveIPv6Conn = false; |
| const bool hadIPv4Conn = mFlags.Has(ConnectivityFlags::kHaveIPv4InternetConnectivity); |
| const bool hadIPv6Conn = mFlags.Has(ConnectivityFlags::kHaveIPv6InternetConnectivity); |
| IPAddress addr; |
| |
| // If the WiFi station is currently in the connected state... |
| if (mWiFiStationState == kWiFiStationState_Connected) |
| { |
| // Get the LwIP netif for the WiFi station interface. |
| struct netif * netif = Internal::ESP32Utils::GetStationNetif(); |
| |
| // If the WiFi station interface is up... |
| if (netif != NULL && netif_is_up(netif) && netif_is_link_up(netif)) |
| { |
| // Check if a DNS server is currently configured. If so... |
| ip_addr_t dnsServerAddr = *dns_getserver(0); |
| if (!ip_addr_isany_val(dnsServerAddr)) |
| { |
| // If the station interface has been assigned an IPv4 address, and has |
| // an IPv4 gateway, then presume that the device has IPv4 Internet |
| // connectivity. |
| if (!ip4_addr_isany_val(*netif_ip4_addr(netif)) && !ip4_addr_isany_val(*netif_ip4_gw(netif))) |
| { |
| haveIPv4Conn = true; |
| |
| esp_netif_ip_info_t ipInfo; |
| if (esp_netif_get_ip_info(esp_netif_get_handle_from_ifkey("WIFI_STA_DEF"), &ipInfo) == ESP_OK) |
| { |
| char addrStr[INET_ADDRSTRLEN]; |
| // ToDo: change the code to using IPv6 address |
| esp_ip4addr_ntoa(&ipInfo.ip, addrStr, sizeof(addrStr)); |
| IPAddress::FromString(addrStr, addr); |
| } |
| } |
| |
| // Search among the IPv6 addresses assigned to the interface for a Global Unicast |
| // address (2000::/3) that is in the valid state. If such an address is found... |
| for (uint8_t i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) |
| { |
| if (ip6_addr_isglobal(netif_ip6_addr(netif, i)) && ip6_addr_isvalid(netif_ip6_addr_state(netif, i))) |
| { |
| // Determine if there is a default IPv6 router that is currently reachable |
| // via the station interface. If so, presume for now that the device has |
| // IPv6 connectivity. |
| struct netif * found_if = nd6_find_route(IP6_ADDR_ANY6); |
| if (found_if && netif->num == found_if->num) |
| { |
| haveIPv6Conn = true; |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| // If the internet connectivity state has changed... |
| if (haveIPv4Conn != hadIPv4Conn || haveIPv6Conn != hadIPv6Conn) |
| { |
| // Update the current state. |
| mFlags.Set(ConnectivityFlags::kHaveIPv4InternetConnectivity, haveIPv4Conn) |
| .Set(ConnectivityFlags::kHaveIPv6InternetConnectivity, haveIPv6Conn); |
| |
| // Alert other components of the state change. |
| ChipDeviceEvent event; |
| event.Type = DeviceEventType::kInternetConnectivityChange; |
| event.InternetConnectivityChange.IPv4 = GetConnectivityChange(hadIPv4Conn, haveIPv4Conn); |
| event.InternetConnectivityChange.IPv6 = GetConnectivityChange(hadIPv6Conn, haveIPv6Conn); |
| event.InternetConnectivityChange.ipAddress = addr; |
| |
| PlatformMgr().PostEventOrDie(&event); |
| |
| if (haveIPv4Conn != hadIPv4Conn) |
| { |
| ChipLogProgress(DeviceLayer, "%s Internet connectivity %s", "IPv4", (haveIPv4Conn) ? "ESTABLISHED" : "LOST"); |
| } |
| |
| if (haveIPv6Conn != hadIPv6Conn) |
| { |
| ChipLogProgress(DeviceLayer, "%s Internet connectivity %s", "IPv6", (haveIPv6Conn) ? "ESTABLISHED" : "LOST"); |
| } |
| } |
| } |
| |
| void ConnectivityManagerImpl::OnStationIPv4AddressAvailable(const ip_event_got_ip_t & got_ip) |
| { |
| #if CHIP_PROGRESS_LOGGING |
| { |
| ChipLogProgress(DeviceLayer, "IPv4 address %s on WiFi station interface: " IPSTR "/" IPSTR " gateway " IPSTR, |
| (got_ip.ip_changed) ? "changed" : "ready", IP2STR(&got_ip.ip_info.ip), IP2STR(&got_ip.ip_info.netmask), |
| IP2STR(&got_ip.ip_info.gw)); |
| } |
| #endif // CHIP_PROGRESS_LOGGING |
| |
| UpdateInternetConnectivityState(); |
| |
| ChipDeviceEvent event; |
| event.Type = DeviceEventType::kInterfaceIpAddressChanged; |
| event.InterfaceIpAddressChanged.Type = InterfaceIpChangeType::kIpV4_Assigned; |
| PlatformMgr().PostEventOrDie(&event); |
| } |
| |
| void ConnectivityManagerImpl::OnStationIPv4AddressLost(void) |
| { |
| ChipLogProgress(DeviceLayer, "IPv4 address lost on WiFi station interface"); |
| |
| UpdateInternetConnectivityState(); |
| |
| ChipDeviceEvent event; |
| event.Type = DeviceEventType::kInterfaceIpAddressChanged; |
| event.InterfaceIpAddressChanged.Type = InterfaceIpChangeType::kIpV4_Lost; |
| PlatformMgr().PostEventOrDie(&event); |
| } |
| |
| void ConnectivityManagerImpl::OnStationIPv6AddressAvailable(const ip_event_got_ip6_t & got_ip) |
| { |
| #if CHIP_PROGRESS_LOGGING |
| { |
| ChipLogProgress(DeviceLayer, "IPv6 addr available. Ready on %s interface: " IPV6STR, esp_netif_get_ifkey(got_ip.esp_netif), |
| IPV62STR(got_ip.ip6_info.ip)); |
| } |
| #endif // CHIP_PROGRESS_LOGGING |
| |
| UpdateInternetConnectivityState(); |
| |
| ChipDeviceEvent event; |
| event.Type = DeviceEventType::kInterfaceIpAddressChanged; |
| event.InterfaceIpAddressChanged.Type = InterfaceIpChangeType::kIpV6_Assigned; |
| PlatformMgr().PostEventOrDie(&event); |
| #if CONFIG_ENABLE_ROUTE_HOOK |
| esp_route_hook_init(esp_netif_get_handle_from_ifkey("WIFI_STA_DEF")); |
| #endif |
| } |
| |
| } // namespace DeviceLayer |
| } // namespace chip |
| |
| #endif // CHIP_DEVICE_CONFIG_ENABLE_WIFI |
