Fix wifi crashing because stack overflow and fix esp_ota cancelling when starting from factory

Provider/main/connect.cpp

@@ -70,6 +70,10 @@ void ethernet_event_handler(void *arg, esp_event_base_t event_base,
   {
     ESP_LOGI(kLogEthernet, "Ethernet Link Down");
     s_eth_link_up = false;
+    if (s_semph_eth_link)
+    {
+      xSemaphoreGive(s_semph_eth_link);
+    }
   }
 }
 
@@ -182,10 +186,18 @@ internal esp_err_t check_ethernet_connection(uint32_t timeoutSeconds)
   {
     if (!xSemaphoreTake(s_semph_eth_link, pdMS_TO_TICKS(5000)))
     {
-      ESP_LOGE(kLogEthernet,
-               "No physical Ethernet link detected. Skipping DHCP wait.");
+      ESP_LOGE(
+          kLogEthernet,
+          "No physical Ethernet link detected (Timeout). Skipping DHCP wait.");
       return ESP_ERR_INVALID_STATE; // Special error to skip retries
     }
+
+    if (!s_eth_link_up)
+    {
+      ESP_LOGE(kLogEthernet, "No physical Ethernet link detected "
+                             "(Disconnected). Skipping DHCP wait.");
+      return ESP_ERR_INVALID_STATE;
+    }
   }
 
   ESP_LOGI(kLogEthernet, "Waiting for IP address for %d seconds.",
@@ -209,15 +221,11 @@ internal esp_netif_t *s_wifi_netif = nullptr;
 internal SemaphoreHandle_t s_semph_get_wifi_ip_addrs = nullptr;
 internal SemaphoreHandle_t s_semph_wifi_link = nullptr;
 internal volatile bool s_wifi_link_up = false;
-internal TimerHandle_t s_wifi_reconnect_timer = nullptr;
 
 #ifndef NDEBUG
 internal bool s_wifi_connected = false;
 #endif
 
-// Forward declaration for timer callback
-internal void wifi_reconnect_timer_cb(TimerHandle_t xTimer);
-
 void wifi_event_handler(void *arg, esp_event_base_t event_base,
                         int32_t event_id, void *event_data)
 {
@@ -232,11 +240,11 @@ void wifi_event_handler(void *arg, esp_event_base_t event_base,
   }
   else if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_DISCONNECTED)
   {
-    ESP_LOGI(kLogWifi, "WiFi disconnected. Scheduling reconnect...");
+    ESP_LOGI(kLogWifi, "WiFi disconnected.");
     s_wifi_link_up = false;
-    if (s_wifi_reconnect_timer != nullptr)
+    if (s_semph_wifi_link)
     {
-      xTimerStart(s_wifi_reconnect_timer, 0);
+      xSemaphoreGive(s_semph_wifi_link);
     }
   }
   else if (event_base == IP_EVENT && event_id == IP_EVENT_STA_GOT_IP)
@@ -254,20 +262,8 @@ void wifi_event_handler(void *arg, esp_event_base_t event_base,
   }
 }
 
-internal void wifi_reconnect_timer_cb(TimerHandle_t xTimer)
-{
-  ESP_LOGI(kLogWifi, "Timer expired. Executing esp_wifi_connect()...");
-  esp_wifi_connect();
-}
-
 void teardown_wifi()
 {
-  if (s_wifi_reconnect_timer != nullptr)
-  {
-    xTimerStop(s_wifi_reconnect_timer, 0);
-    xTimerDelete(s_wifi_reconnect_timer, 0);
-    s_wifi_reconnect_timer = nullptr;
-  }
 
   if (s_semph_wifi_link != nullptr)
   {
@@ -313,11 +309,6 @@ internal esp_err_t connect_wifi(const char *ssid, const char *password,
     return ESP_ERR_NO_MEM;
   }
 
-  // Create a 5-second timer to avoid spamming connect requests
-  s_wifi_reconnect_timer =
-      xTimerCreate("wifi_recon", pdMS_TO_TICKS(5000), pdFALSE, (void *)0,
-                   wifi_reconnect_timer_cb);
-
   // esp_netif_init() is already called by Ethernet, but safe to call multiple
   // times or we can assume it's initialized.
   s_wifi_netif = esp_netif_create_default_wifi_sta();
@@ -372,10 +363,6 @@ internal esp_err_t check_wifi_connection(uint32_t timeoutSeconds)
 {
   // Wait up to 10000ms for the physical link to associate with the AP
   if (!s_wifi_link_up)
-  {
-    // If the timer isn't already running, kickstart a connection attempt now
-    if (s_wifi_reconnect_timer != nullptr &&
-        xTimerIsTimerActive(s_wifi_reconnect_timer) == pdFALSE)
   {
     ESP_LOGI(kLogWifi,
              "Physical link is down. Requesting immediate AP association...");
@@ -384,13 +371,19 @@ internal esp_err_t check_wifi_connection(uint32_t timeoutSeconds)
     {
       ESP_LOGE(kLogWifi, "esp_wifi_connect failed: %s", esp_err_to_name(err));
     }
-    }
 
     if (!xSemaphoreTake(s_semph_wifi_link, pdMS_TO_TICKS(10000)))
     {
-      ESP_LOGE(kLogWifi, "Failed to associate with WiFi AP.");
+      ESP_LOGE(kLogWifi, "Failed to associate with WiFi AP (Timeout).");
       return ESP_ERR_TIMEOUT; // Return timeout so main.cpp triggers a retry
     }
+
+    // After semaphore is taken, check if it was because of a disconnect
+    if (!s_wifi_link_up)
+    {
+      ESP_LOGE(kLogWifi, "Failed to associate with WiFi AP (Disconnected).");
+      return ESP_ERR_TIMEOUT;
+    }
   }
 
   ESP_LOGI(kLogWifi, "Waiting for IP address for %d seconds.", timeoutSeconds);

Provider/main/main.cpp

@@ -168,8 +168,16 @@ extern "C" void app_main()
 
   printf("Connected!\n");
 
-  // Mark the current app as valid to cancel rollback
+  // Mark the current app as valid to cancel rollback, only if it's an OTA app
+  {
+    const esp_partition_t *running = esp_ota_get_running_partition();
+    if (running != NULL &&
+        running->subtype >= ESP_PARTITION_SUBTYPE_APP_OTA_MIN &&
+        running->subtype < ESP_PARTITION_SUBTYPE_APP_OTA_MAX)
+    {
       esp_ota_mark_app_valid_cancel_rollback();
+    }
+  }
 
   // Start the webserver
   web_server = start_webserver();