Reporting relevant attribute change when various faults are detected

src/app/clusters/general_diagnostics_server/general_diagnostics_server.cpp

@@ -213,6 +213,69 @@ class GeneralDiagnosticDelegate : public DeviceLayer::ConnectivityManagerDelegat
             }
         }
     }
+
+    // Get called when the Node detects a hardware fault has been raised.
+    void OnHardwareFaultsDetected() override
+    {
+        ChipLogProgress(Zcl, "GeneralDiagnosticDelegate: OnHardwareFaultsDetected");
+
+        for (uint16_t index = 0; index < emberAfEndpointCount(); index++)
+        {
+            if (emberAfEndpointIndexIsEnabled(index))
+            {
+                EndpointId endpointId = emberAfEndpointFromIndex(index);
+
+                if (emberAfContainsServer(endpointId, GeneralDiagnostics::Id))
+                {
+                    // If General Diagnostics cluster is implemented on this endpoint
+                    MatterReportingAttributeChangeCallback(endpointId, GeneralDiagnostics::Id,
+                                                           GeneralDiagnostics::Attributes::ActiveHardwareFaults::Id);
+                }
+            }
+        }
+    }
+
+    // Get called when the Node detects a radio fault has been raised.
+    void OnRadioFaultsDetected() override
+    {
+        ChipLogProgress(Zcl, "GeneralDiagnosticDelegate: OnHardwareFaultsDetected");
+
+        for (uint16_t index = 0; index < emberAfEndpointCount(); index++)
+        {
+            if (emberAfEndpointIndexIsEnabled(index))
+            {
+                EndpointId endpointId = emberAfEndpointFromIndex(index);
+
+                if (emberAfContainsServer(endpointId, GeneralDiagnostics::Id))
+                {
+                    // If General Diagnostics cluster is implemented on this endpoint
+                    MatterReportingAttributeChangeCallback(endpointId, GeneralDiagnostics::Id,
+                                                           GeneralDiagnostics::Attributes::ActiveRadioFaults::Id);
+                }
+            }
+        }
+    }
+
+    // Get called when the Node detects a network fault has been raised.
+    void OnNetworkFaultsDetected() override
+    {
+        ChipLogProgress(Zcl, "GeneralDiagnosticDelegate: OnHardwareFaultsDetected");
+
+        for (uint16_t index = 0; index < emberAfEndpointCount(); index++)
+        {
+            if (emberAfEndpointIndexIsEnabled(index))
+            {
+                EndpointId endpointId = emberAfEndpointFromIndex(index);
+
+                if (emberAfContainsServer(endpointId, GeneralDiagnostics::Id))
+                {
+                    // If General Diagnostics cluster is implemented on this endpoint
+                    MatterReportingAttributeChangeCallback(endpointId, GeneralDiagnostics::Id,
+                                                           GeneralDiagnostics::Attributes::ActiveNetworkFaults::Id);
+                }
+            }
+        }
+    }
 };
 
 GeneralDiagnosticDelegate gDiagnosticDelegate;

src/include/platform/DiagnosticDataProvider.h

@@ -49,9 +49,27 @@ class DiagnosticsDelegate
 
     /**
      * @brief
-     *   Called after the current device is rebooted
+     *   Called after the current device is rebooted.
      */
     virtual void OnDeviceRebooted() {}
+
+    /**
+     * @brief
+     *   Called when the Node detects a hardware fault has been raised.
+     */
+    virtual void OnHardwareFaultsDetected() {}
+
+    /**
+     * @brief
+     *   Called when the Node detects a radio fault has been raised.
+     */
+    virtual void OnRadioFaultsDetected() {}
+
+    /**
+     * @brief
+     *   Called when the Node detects a network fault has been raised.
+     */
+    virtual void OnNetworkFaultsDetected() {}
 };
 
 /**