From eb4b133de10ee312955db4440244b72e5b062e71 Mon Sep 17 00:00:00 2001
From: Florian Hoss <flhoit00@hs-esslingen.de>
Date: Tue, 26 Jul 2022 09:18:19 +0200
Subject: [PATCH] Wifi callbacks and ip address

---
 ESP32Firewall/src/main.cpp | 48 ++++++++++++++++++++++++++++----------
 1 file changed, 36 insertions(+), 12 deletions(-)

diff --git a/ESP32Firewall/src/main.cpp b/ESP32Firewall/src/main.cpp
index 3ca2793..6e2583e 100644
--- a/ESP32Firewall/src/main.cpp
+++ b/ESP32Firewall/src/main.cpp
@@ -16,23 +16,47 @@ int lwip_hook_ip4_input(struct pbuf *pbuf, struct netif *input_netif)
     return 0;
 }
 
+void handle_wifi_events(WiFiEvent_t event, WiFiEventInfo_t info)
+{
+    Serial.print("[WiFi] ");
+    switch (event)
+    {
+    case ARDUINO_EVENT_WIFI_STA_START:
+        Serial.println("connecting...");
+        break;
+    case ARDUINO_EVENT_WIFI_STA_CONNECTED:
+        Serial.println("connected");
+        break;
+    case ARDUINO_EVENT_WIFI_STA_DISCONNECTED:
+        Serial.println("disconnected");
+        break;
+    case ARDUINO_EVENT_WIFI_STA_GOT_IP:
+        Serial.print("IP: ");
+        Serial.println(WiFi.localIP().toString().c_str());
+        break;
+    default:
+        Serial.print("other event: ");
+        Serial.println(event);
+    }
+}
+
+void setup_wifi()
+{
+    WiFi.mode(WIFI_STA);
+    WiFi.onEvent(handle_wifi_events, ARDUINO_EVENT_MAX);
+    WiFi.begin(ssid, psk);
+
+    // fix for https://github.com/espressif/arduino-esp32/issues/4732
+    WiFi.config(((u32_t)0x0UL), ((u32_t)0x0UL), ((u32_t)0x0UL));
+}
+
 void setup()
 {
     Serial.begin(115200);
-    Serial.println();
-    WiFi.begin(ssid, psk);
-    while (!WiFi.isConnected())
-    {
-        Serial.print(".");
-        delay(200);
-    }
-    Serial.println();
-    Serial.print("[WiFi] IP: ");
-    Serial.println(WiFi.localIP());
+    setup_wifi();
 }
 
 void loop()
 {
-    Serial.println("test");
-    sleep(1000);
+    sleep(60);
 }
\ No newline at end of file