GCS_MAVLink: check target before erasing log

libraries/GCS_MAVLink/GCS.h

@@ -319,6 +319,8 @@ private:
 
     void handle_log_request_list(mavlink_message_t *msg, DataFlash_Class &dataflash);
     void handle_log_request_data(mavlink_message_t *msg, DataFlash_Class &dataflash);
+    void handle_log_request_erase(mavlink_message_t *msg, DataFlash_Class &dataflash);
+    void handle_log_request_end(mavlink_message_t *msg, DataFlash_Class &dataflash);
     void handle_log_message(mavlink_message_t *msg, DataFlash_Class &dataflash);
     void handle_log_send(DataFlash_Class &dataflash);
     void handle_log_send_listing(DataFlash_Class &dataflash);

libraries/GCS_MAVLink/GCS_Logs.cpp

@@ -38,13 +38,12 @@ void GCS_MAVLINK::handle_log_message(mavlink_message_t *msg, DataFlash_Class &da
         handle_log_request_data(msg, dataflash);
         break;
     case MAVLINK_MSG_ID_LOG_ERASE:
-        dataflash.EraseAll();
+        handle_log_request_erase(msg, dataflash);
         break;
     case MAVLINK_MSG_ID_LOG_REQUEST_END:
-        _log_sending = false;
+        handle_log_request_end(msg, dataflash);
         break;
     }
-        
 }
 
 
@@ -126,6 +125,31 @@ void GCS_MAVLINK::handle_log_request_data(mavlink_message_t *msg, DataFlash_Clas
     handle_log_send(dataflash);
 }
 
+/**
+   handle request to erase log data
+ */
+void GCS_MAVLINK::handle_log_request_erase(mavlink_message_t *msg, DataFlash_Class &dataflash)
+{
+    mavlink_log_request_data_t packet;
+    mavlink_msg_log_request_data_decode(msg, &packet);
+    if (mavlink_check_target(packet.target_system, packet.target_component))
+        return;
+
+    dataflash.EraseAll();
+}
+
+/**
+   handle request to stop transfer and resume normal logging
+ */
+void GCS_MAVLINK::handle_log_request_end(mavlink_message_t *msg, DataFlash_Class &dataflash)
+{
+    mavlink_log_request_data_t packet;
+    mavlink_msg_log_request_data_decode(msg, &packet);
+    if (mavlink_check_target(packet.target_system, packet.target_component))
+        return;
+    _log_sending = false;
+}
+
 /**
    trigger sending of log messages if there are some pending
  */