Add IPv6 support for WiFi and Ethernet interfaces

_codeql_detected_source_root

@@ -0,0 +1 @@
+.

src/net_manager.cpp

@@ -51,6 +51,7 @@ NetManagerTask::NetManagerTask(LcdTask &lcd, LedManagerTask &led, TimeManager &t
   _apClients(0),
   _state(NetState::Starting),
   _ipaddress(""),
+  _ipv6address(""),
   _macaddress(""),
   _clientDisconnects(0),
   _clientRetry(false),
@@ -170,6 +171,7 @@ void NetManagerTask::wifiClientConnect()
   WiFi.setSleep(WIFI_PS_NONE);
   WiFi.setScanMethod(WIFI_ALL_CHANNEL_SCAN);
   WiFi.setSortMethod(WIFI_CONNECT_AP_BY_SIGNAL);
+  WiFi.enableIpV6();
   WiFi.begin(esid.c_str(), epass.c_str());
 
   _clientRetryTime = millis() + WIFI_CLIENT_RETRY_TIMEOUT;
@@ -425,6 +427,21 @@ void NetManagerTask::onNetEvent(WiFiEvent_t event, arduino_event_info_t &info)
       wifiOnStationModeGotIP(dst);
     } break;
 
+    case ARDUINO_EVENT_WIFI_STA_GOT_IP6:
+    {
+      _ipv6address = WiFi.localIPv6().toString();
+      DBUGF("WiFi STA IPv6: %s", _ipv6address.c_str());
+
+      StaticJsonDocument<256> doc;
+      doc["wifi_client_connected"] = (int)net.isWifiClientConnected();
+      doc["eth_connected"] = (int)net.isWiredConnected();
+      doc["net_connected"] = (int)net.isWifiClientConnected();
+      doc["ipaddress"] = net.getIp();
+      doc["ipv6address"] = net.getIpv6();
+      doc["macaddress"] = net.getMac();
+      event_send(doc);
+    } break;
+
     case ARDUINO_EVENT_WIFI_AP_STACONNECTED:
     {
       auto& src = info.wifi_ap_staconnected;
@@ -469,6 +486,7 @@ void NetManagerTask::onNetEvent(WiFiEvent_t event, arduino_event_info_t &info)
       break;
     case ARDUINO_EVENT_ETH_CONNECTED:
       DBUGLN("ETH Connected");
+      ETH.enableIpV6();
       break;
     case ARDUINO_EVENT_ETH_GOT_IP:
       DBUG("ETH MAC: ");
@@ -486,6 +504,10 @@ void NetManagerTask::onNetEvent(WiFiEvent_t event, arduino_event_info_t &info)
       _ethConnected = true;
       wifiStop();
       break;
+    case ARDUINO_EVENT_ETH_GOT_IP6:
+      _ipv6address = ETH.localIPv6().toString();
+      DBUGF("ETH IPv6: %s", _ipv6address.c_str());
+      break;
     case ARDUINO_EVENT_ETH_DISCONNECTED:
       DBUGLN("ETH Disconnected");
       _ethConnected = false;

src/net_manager.h

@@ -96,6 +96,7 @@ class NetManagerTask : public MicroTasks::Task
     // Network state
     NetState _state;
     String _ipaddress;
+    String _ipv6address;
     String _macaddress;
 
     DNSServer _dnsServer;                  // Create class DNS server, captive portal re-direct
@@ -215,6 +216,9 @@ class NetManagerTask : public MicroTasks::Task
     String getIp() {
       return _ipaddress;
     }
+    String getIpv6() {
+      return _ipv6address;
+    }
     String getMac() {
       return _macaddress;
     }

src/web_server.cpp

@@ -212,6 +212,7 @@ void buildStatus(DynamicJsonDocument &doc) {
   doc["eth_connected"] = (int)net.isWiredConnected();
   doc["net_connected"] = (int)net.isWifiClientConnected();
   doc["ipaddress"] = net.getIp();
+  doc["ipv6address"] = net.getIpv6();
   doc["macaddress"] = net.getMac();
 
   doc["emoncms_connected"] = (int)emoncms_connected;