esp-idf/components/esp_netif/include/esp_netif_slip.h

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2.4 KiB
C

// Copyright 2019 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#ifndef _ESP_NETIF_SLIP_H_
#define _ESP_NETIF_SLIP_H_
#include "esp_netif.h"
#ifdef __cplusplus
extern "C" {
#endif
/** @brief Configuration structure for SLIP network interface
*
*/
typedef struct esp_netif_slip_config {
esp_ip6_addr_t ip6_addr; /* Local IP6 address */
} esp_netif_slip_config_t;
/** @brief Sets common parameters for the supplied esp-netif.
*
* @param[in] esp_netif handle to slip esp-netif instance
* @param[in] config Pointer to SLIP netif configuration structure
*
* @return ESP_OK on success, ESP_ERR_ESP_NETIF_INVALID_PARAMS if netif null or not SLIP
*/
esp_err_t esp_netif_slip_set_params(esp_netif_t *netif, const esp_netif_slip_config_t *config);
#if CONFIG_LWIP_IPV6
/** @brief Sets IPV6 address for the supplied esp-netif.
*
* @param[in] netif handle to slip esp-netif instance
* @param[in] ipv6 IPv6 address of the SLIP interface
*
* @return ESP_OK on success, ESP_ERR_ESP_NETIF_INVALID_PARAMS if netif null or not SLIP
*/
esp_err_t esp_netif_slip_set_ipv6(esp_netif_t *netif, const esp_ip6_addr_t *ipv6);
#endif
/**
* @brief Data path API to write raw packet ous the SLIP interface
*
* This API is typically used when implementing user defined methods
*
* @param[in] esp_netif handle to slip esp-netif instance
* @param[in] buffer pointer to the outgoing data
* @param[in] len length of the data
*
* @return
* - ESP_OK on success
*/
void esp_netif_lwip_slip_raw_output(esp_netif_t *netif, void *buffer, size_t len);
/**
* @brief Fetch IP6 address attached to the SLIP interface
*
* @param[in] esp_netif handle to slip esp-netif instance
* @param[in] address index (unused)
*
* @return
* - pointer to the internal ip6 address object
*/
const esp_ip6_addr_t *esp_slip_get_ip6(esp_netif_t *slip_netif);
#endif