kopia lustrzana https://github.com/espressif/esp-idf
70 wiersze
1.9 KiB
C
70 wiersze
1.9 KiB
C
/*
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* SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#pragma once
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#include "esp_err.h"
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#define L2TAP_VFS_DEFAULT_PATH "/dev/net/tap"
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#define L2TAP_VFS_CONFIG_DEFAULT() \
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{ \
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.base_path = L2TAP_VFS_DEFAULT_PATH, \
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}
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef void *l2tap_iodriver_handle;
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typedef struct {
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const char* base_path;
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} l2tap_vfs_config_t;
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typedef enum {
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L2TAP_S_RCV_FILTER,
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L2TAP_G_RCV_FILTER,
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L2TAP_S_INTF_DEVICE,
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L2TAP_G_INTF_DEVICE,
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L2TAP_S_DEVICE_DRV_HNDL,
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L2TAP_G_DEVICE_DRV_HNDL
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} l2tap_ioctl_opt_t;
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/**
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* @brief Add L2 TAP virtual filesystem driver
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*
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* This function must be called prior usage of ESP-NETIF L2 TAP Interface
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*
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* @param config L2 TAP virtual filesystem driver configuration. Default base path /dev/net/tap is used when this paramenter is NULL.
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* @return esp_err_t
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* - ESP_OK on success
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*/
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esp_err_t esp_vfs_l2tap_intf_register(l2tap_vfs_config_t *config);
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/**
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* @brief Removes L2 TAP virtual filesystem driver
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*
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* @param base_path Base path to the L2 TAP virtual filesystem driver. Default path /dev/net/tap is used when this paramenter is NULL.
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* @return esp_err_t
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* - ESP_OK on success
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*/
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esp_err_t esp_vfs_l2tap_intf_unregister(const char *base_path);
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/**
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* @brief Filters received Ethernet L2 frames into L2 TAP infrastructure.
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*
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* @param eth_hdl handle of Ethernet driver at which the frame was received
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* @param buff received L2 frame
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* @param size input length of the L2 frame which is set to 0 when frame is filtered into L2 TAP
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* @return esp_err_t
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* - ESP_OK is always returned
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*/
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esp_err_t esp_vfs_l2tap_eth_filter(l2tap_iodriver_handle driver_handle, void *buff, size_t *size);
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#ifdef __cplusplus
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}
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#endif
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