[mdns]: support allocating mDNS task with caps

common_components/linux_compat/freertos/freertos_linux.c

@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2021-2024 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2021-2025 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -212,6 +212,20 @@ void *pthread_task(void *params)
     return NULL;
 }
 
+TaskHandle_t xTaskCreateStaticPinnedToCore( TaskFunction_t pxTaskCode,
+        const char *const pcName,
+        const uint32_t ulStackDepth,
+        void *const pvParameters,
+        UBaseType_t uxPriority,
+        StackType_t *const puxStackBuffer,
+        StaticTask_t *const pxTaskBuffer,
+        const BaseType_t xCoreID )
+{
+    static TaskHandle_t pvCreatedTask;
+    xTaskCreate(pxTaskCode, pcName, ulStackDepth, pvParameters, uxPriority, &pvCreatedTask);
+    return pvCreatedTask;
+}
+
 BaseType_t xTaskCreatePinnedToCore( TaskFunction_t pvTaskCode,
                                     const char *const pcName,
                                     const uint32_t usStackDepth,

common_components/linux_compat/freertos/include/freertos/task.h

@@ -1,11 +1,12 @@
 /*
- * SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2021-2025 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
 #pragma once
 
 #include "freertos/FreeRTOS.h"
+#include "esp_heap_caps.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -15,6 +16,9 @@ extern "C" {
 #define TaskHandle_t TaskHandle_t
 #define vSemaphoreDelete( xSemaphore ) vQueueDelete( ( QueueHandle_t ) ( xSemaphore ) )
 
+typedef void *StackType_t;
+typedef void *StaticTask_t;
+
 void vTaskDelay( const TickType_t xTicksToDelay );
 
 void xTaskNotifyGive(TaskHandle_t task);
@@ -25,6 +29,15 @@ TaskHandle_t xTaskGetCurrentTaskHandle(void);
 
 BaseType_t xTaskNotifyWait(uint32_t bits_entry_clear, uint32_t bits_exit_clear, uint32_t *value, TickType_t wait_time );
 
+TaskHandle_t xTaskCreateStaticPinnedToCore( TaskFunction_t pxTaskCode,
+        const char *const pcName,
+        const uint32_t ulStackDepth,
+        void *const pvParameters,
+        UBaseType_t uxPriority,
+        StackType_t *const puxStackBuffer,
+        StaticTask_t *const pxTaskBuffer,
+        const BaseType_t xCoreID );
+
 BaseType_t xTaskCreatePinnedToCore( TaskFunction_t pvTaskCode,
                                     const char *const pcName,
                                     const uint32_t usStackDepth,
@@ -81,6 +94,9 @@ EventBits_t xEventGroupSetBits( EventGroupHandle_t xEventGroup,
 
 uint32_t xQueueSendToBack(QueueHandle_t xQueue, const void *pvItemToQueue, TickType_t xTicksToWait );
 
+void *heap_caps_malloc( size_t size, uint32_t caps);
+void heap_caps_free( void *ptr);
+
 #ifdef __cplusplus
 }
 #endif //__cplusplus

components/mdns/.cz.yaml

@@ -3,6 +3,6 @@ commitizen:
   bump_message: 'bump(mdns): $current_version -> $new_version'
   pre_bump_hooks: python ../../ci/changelog.py mdns
   tag_format: mdns-v$version
-  version: 1.5.3
+  version: 1.6.0
   version_files:
   - idf_component.yml

components/mdns/CHANGELOG.md

@@ -1,5 +1,19 @@
 # Changelog
 
+## [1.6.0](https://github.com/espressif/esp-protocols/commits/mdns-v1.6.0)
+
+### Features
+
+- support allocating mDNS task from SPIRAM ([8fcad10c](https://github.com/espressif/esp-protocols/commit/8fcad10c))
+
+### Bug Fixes
+
+- Use correct task delete function ([eb4ab524](https://github.com/espressif/esp-protocols/commit/eb4ab524))
+
+### Updated
+
+- ci(mdns): Fix mdns host test layers with static task creation ([0690eba3](https://github.com/espressif/esp-protocols/commit/0690eba3))
+
 ## [1.5.3](https://github.com/espressif/esp-protocols/commits/mdns-v1.5.3)
 
 ### Bug Fixes

components/mdns/Kconfig

@@ -61,6 +61,16 @@ menu "mDNS"
         default 0x0 if MDNS_TASK_AFFINITY_CPU0
         default 0x1 if MDNS_TASK_AFFINITY_CPU1
 
+    choice MDNS_TASK_MEMORY_ALLOC_FROM
+        prompt "Select mDNS task create on which type of memory"
+        default MDNS_TASK_CREATE_FROM_INTERNAL
+        config MDNS_TASK_CREATE_FROM_SPIRAM
+            bool "mDNS task creates on the SPIRAM"
+            depends on (SPIRAM_USE_CAPS_ALLOC || SPIRAM_USE_MALLOC)
+        config MDNS_TASK_CREATE_FROM_INTERNAL
+            bool "mDNS task creates on the internal RAM"
+    endchoice
+
     config MDNS_SERVICE_ADD_TIMEOUT_MS
         int "mDNS adding service timeout (ms)"
         range 10 30000

components/mdns/idf_component.yml

@@ -1,4 +1,4 @@
-version: "1.5.3"
+version: "1.6.0"
 description: "Multicast UDP service used to provide local network service and host discovery."
 url: "https://github.com/espressif/esp-protocols/tree/master/components/mdns"
 issues: "https://github.com/espressif/esp-protocols/issues"

components/mdns/mdns.c

@@ -62,6 +62,7 @@ static const char *TAG = "mdns";
 
 static volatile TaskHandle_t _mdns_service_task_handle = NULL;
 static SemaphoreHandle_t _mdns_service_semaphore = NULL;
+static StackType_t *_mdns_stack_buffer;
 
 static void _mdns_search_finish_done(void);
 static mdns_search_once_t *_mdns_search_find_from(mdns_search_once_t *search, mdns_name_t *name, uint16_t type, mdns_if_t tcpip_if, mdns_ip_protocol_t ip_protocol);
@@ -5462,6 +5463,26 @@ static esp_err_t _mdns_stop_timer(void)
     return err;
 }
 
+static esp_err_t _mdns_task_create_with_caps(void)
+{
+    ESP_LOGI(TAG, "mDNS task will be created from %s", MDNS_TASK_MEMORY_LOG);
+    esp_err_t ret = ESP_OK;
+    static StaticTask_t mdns_task_buffer;
+
+    // Allocate memory for the mDNS task's stack using the MDNS_TASK_MEMORY_CAPS
+    _mdns_stack_buffer = heap_caps_malloc(MDNS_SERVICE_STACK_DEPTH, MDNS_TASK_MEMORY_CAPS);
+    ESP_GOTO_ON_FALSE(_mdns_stack_buffer != NULL, ESP_FAIL, err, TAG, "failed to allocate memory for the mDNS task's stack");
+
+    _mdns_service_task_handle = xTaskCreateStaticPinnedToCore( _mdns_service_task, "mdns", MDNS_SERVICE_STACK_DEPTH, NULL, MDNS_TASK_PRIORITY, _mdns_stack_buffer, &mdns_task_buffer, MDNS_TASK_AFFINITY );
+    ESP_GOTO_ON_FALSE(_mdns_service_task_handle != NULL, ESP_FAIL, err, TAG, "failed to create task for the mDNS");
+
+    return ret;
+
+err:
+    heap_caps_free(_mdns_stack_buffer);
+    return ret;
+}
+
 /**
  * @brief  Start the service thread if not running
  *
@@ -5471,30 +5492,35 @@ static esp_err_t _mdns_stop_timer(void)
  */
 static esp_err_t _mdns_service_task_start(void)
 {
+    esp_err_t ret = ESP_OK;
     if (!_mdns_service_semaphore) {
         _mdns_service_semaphore = xSemaphoreCreateMutex();
-        if (!_mdns_service_semaphore) {
-            return ESP_FAIL;
-        }
+        ESP_RETURN_ON_FALSE(_mdns_service_semaphore != NULL, ESP_FAIL, TAG, "Failed to create the mDNS service lock");
     }
     MDNS_SERVICE_LOCK();
-    if (_mdns_start_timer()) {
-        MDNS_SERVICE_UNLOCK();
-        return ESP_FAIL;
-    }
+    ESP_GOTO_ON_ERROR(_mdns_start_timer(), err, TAG, "Failed to start the mDNS service timer");
+
     if (!_mdns_service_task_handle) {
-        xTaskCreatePinnedToCore(_mdns_service_task, "mdns", MDNS_SERVICE_STACK_DEPTH, NULL, MDNS_TASK_PRIORITY,
-                                (TaskHandle_t *const)(&_mdns_service_task_handle), MDNS_TASK_AFFINITY);
-        if (!_mdns_service_task_handle) {
-            _mdns_stop_timer();
-            MDNS_SERVICE_UNLOCK();
-            vSemaphoreDelete(_mdns_service_semaphore);
-            _mdns_service_semaphore = NULL;
-            return ESP_FAIL;
-        }
+        ESP_GOTO_ON_ERROR(_mdns_task_create_with_caps(), err_stop_timer, TAG, "Failed to start the mDNS service task");
+#ifdef MDNS_ENABLE_DEBUG
+#if !CONFIG_IDF_TARGET_LINUX
+        StackType_t *mdns_debug_stack_buffer;
+        StaticTask_t *mdns_debug_task_buffer;
+        xTaskGetStaticBuffers(_mdns_service_task_handle, &mdns_debug_stack_buffer, &mdns_debug_task_buffer);
+        _mdns_dbg_printf("mdns_debug_stack_buffer:%p mdns_debug_task_buffer:%p\n", mdns_debug_stack_buffer, mdns_debug_task_buffer);
+#endif // CONFIG_IDF_TARGET_LINUX
+#endif // MDNS_ENABLE_DEBUG
     }
     MDNS_SERVICE_UNLOCK();
-    return ESP_OK;
+    return ret;
+
+err_stop_timer:
+    _mdns_stop_timer();
+err:
+    MDNS_SERVICE_UNLOCK();
+    vSemaphoreDelete(_mdns_service_semaphore);
+    _mdns_service_semaphore = NULL;
+    return ret;
 }
 
 /**
@@ -5741,6 +5767,8 @@ void mdns_free(void)
     mdns_service_remove_all();
     free_delegated_hostnames();
     _mdns_service_task_stop();
+    // at this point, the service task is deleted, so we can destroy the stack size
+    heap_caps_free(_mdns_stack_buffer);
     for (i = 0; i < MDNS_MAX_INTERFACES; i++) {
         for (j = 0; j < MDNS_IP_PROTOCOL_MAX; j++) {
             mdns_pcb_deinit_local(i, j);

components/mdns/private_include/mdns_private.h

@@ -21,6 +21,21 @@
 #define _mdns_dbg_printf(...) printf(__VA_ARGS__)
 #endif
 
+#if CONFIG_MDNS_TASK_CREATE_FROM_SPIRAM
+#define MDNS_TASK_MEMORY_CAPS (MALLOC_CAP_SPIRAM | MALLOC_CAP_8BIT)
+#define MDNS_TASK_MEMORY_LOG "SPIRAM"
+#endif
+#if CONFIG_MDNS_TASK_CREATE_FROM_INTERNAL
+#define MDNS_TASK_MEMORY_CAPS (MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT)
+#define MDNS_TASK_MEMORY_LOG "internal RAM"
+#endif
+
+// Allocate memory from internal heap as default.
+#ifndef MDNS_TASK_MEMORY_CAPS
+#define MDNS_TASK_MEMORY_CAPS (MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT)
+#define MDNS_TASK_MEMORY_LOG "internal RAM"
+#endif
+
 /** Number of predefined interfaces */
 #ifndef CONFIG_MDNS_PREDEF_NETIF_STA
 #define CONFIG_MDNS_PREDEF_NETIF_STA 0

components/mdns/tests/test_afl_fuzz_host/esp32_mock.c

@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2022-2024 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2022-2025 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Unlicense OR CC0-1.0
  */
@@ -125,3 +125,13 @@ uint32_t esp_log_timestamp(void)
 {
     return 0;
 }
+
+void *heap_caps_malloc(size_t size, uint32_t caps)
+{
+    return malloc(size);
+}
+
+void heap_caps_free( void *ptr)
+{
+    free(ptr);
+}

components/mdns/tests/test_afl_fuzz_host/esp32_mock.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2015-2024 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2015-2025 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -38,6 +38,10 @@
 #define ESP_ERR_INVALID_RESPONSE    0x108
 #define ESP_ERR_INVALID_CRC         0x109
 
+#define MDNS_TASK_MEMORY_LOG        "internal RAM"
+#define MALLOC_CAP_8BIT             (1<<2)
+#define MALLOC_CAP_INTERNAL         (1<<11)
+
 #define pdTRUE                      true
 #define pdFALSE                     false
 #define pdPASS          ( pdTRUE )
@@ -62,6 +66,7 @@
 #define vSemaphoreDelete(s)         free(s)
 #define queueQUEUE_TYPE_MUTEX       ( ( uint8_t ) 1U
 #define xTaskCreatePinnedToCore(a,b,c,d,e,f,g)     *(f) = malloc(1)
+#define xTaskCreateStaticPinnedToCore(a,b,c,d,e,f,g,h)     true
 #define vTaskDelay(m)               usleep((m)*0)
 #define esp_random()                (rand()%UINT32_MAX)
 
@@ -79,7 +84,8 @@ typedef void *QueueHandle_t;
 typedef void *TaskHandle_t;
 typedef int    BaseType_t;
 typedef uint32_t TickType_t;
-
+typedef void *StackType_t;
+typedef void *StaticTask_t;
 
 struct udp_pcb {
     uint8_t dummy;
@@ -132,5 +138,7 @@ esp_err_t esp_event_handler_unregister(const char *event_base, int32_t event_id,
 TaskHandle_t xTaskGetCurrentTaskHandle(void);
 void xTaskNotifyGive(TaskHandle_t task);
 BaseType_t xTaskNotifyWait(uint32_t bits_entry_clear, uint32_t bits_exit_clear, uint32_t *value, TickType_t wait_time );
+void *heap_caps_malloc(size_t size, uint32_t caps);
+void heap_caps_free(void *ptr);
 
 #endif //_ESP32_COMPAT_H_