MDNS-Fuzzer: AFL fuzzer tests for mdsn packet parser

* Original commit: espressif/esp-idf@e983230be9

components/mdns/test_afl_fuzz_host/esp32_mock.h

@@ -0,0 +1,45 @@
+#ifndef ESP32_MOCK_H_
+#define ESP32_MOCK_H_
+
+typedef void (*esp_timer_cb_t)(void* arg);
+
+typedef enum 
+{
+    ESP_TIMER_TASK,     //!< Callback is called from timer task
+} esp_timer_dispatch_t;
+
+typedef struct 
+{
+    esp_timer_cb_t callback;        //!< Function to call when timer expires
+    void* arg;                      //!< Argument to pass to the callback
+    esp_timer_dispatch_t dispatch_method;   //!< Call the callback from task or from ISR
+    const char* name;               //!< Timer name, used in esp_timer_dump function
+} esp_timer_create_args_t;
+
+esp_err_t esp_timer_delete(esp_timer_handle_t timer);
+
+esp_err_t esp_timer_stop(esp_timer_handle_t timer);
+
+esp_err_t esp_timer_start_periodic(esp_timer_handle_t timer, uint64_t period);
+
+esp_err_t esp_timer_create(const esp_timer_create_args_t* create_args,
+                           esp_timer_handle_t* out_handle);
+
+
+// Queue mock
+ QueueHandle_t xQueueCreate( uint32_t uxQueueLength,
+                             uint32_t uxItemSize );
+
+void vQueueDelete( QueueHandle_t xQueue );
+
+uint32_t xQueueSend(QueueHandle_t xQueue, const void * pvItemToQueue, TickType_t xTicksToWait);
+
+uint32_t xQueueReceive(QueueHandle_t xQueue, void *pvBuffer, TickType_t xTicksToWait);
+
+void GetLastItem(void *pvBuffer);
+
+void ForceTaskDelete();
+
+#define _mdns_udp_pcb_write(tcpip_if, ip_protocol, ip, port, data, len) len
+
+#endif /* ESP32_MOCK_H_ */