esp-idf/examples/network/simple_sniffer/main/cmd_sniffer.h

/* cmd_sniffer example — declarations of command registration functions.

   This example code is in the Public Domain (or CC0 licensed, at your option.)

   Unless required by applicable law or agreed to in writing, this
   software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
   CONDITIONS OF ANY KIND, either express or implied.
*/
#pragma once

#ifdef __cplusplus
extern "C" {
#endif

/**
 * @brief Supported Sniffer Interface
 *
 */
typedef enum {
    SNIFFER_INTF_UNKNOWN = 0,
    SNIFFER_INTF_WLAN, /*!< WLAN interface */
    SNIFFER_INTF_ETH, /*!< Ethernet interface */
} sniffer_intf_t;

/**
 * @brief WLAN Sniffer Filter
 *
 */
typedef enum {
    SNIFFER_WLAN_FILTER_MGMT = 0, /*!< MGMT */
    SNIFFER_WLAN_FILTER_CTRL,     /*!< CTRL */
    SNIFFER_WLAN_FILTER_DATA,     /*!< DATA */
    SNIFFER_WLAN_FILTER_MISC,     /*!< MISC */
    SNIFFER_WLAN_FILTER_MPDU,     /*!< MPDU */
    SNIFFER_WLAN_FILTER_AMPDU,    /*!< AMPDU */
    SNIFFER_WLAN_FILTER_FCSFAIL,  /*!< When this bit is set, the hardware will receive packets for which frame check sequence failed */
    SNIFFER_WLAN_FILTER_MAX
} sniffer_wlan_filter_t;

void register_sniffer(void);
esp_err_t sniffer_reg_eth_intf(esp_eth_handle_t eth_handle);

#ifdef __cplusplus
}
#endif