OVMS3-idf/components/esp_netif/lwip/esp_netif_lwip_internal.h

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// Copyright 2015-2018 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.
#pragma once
#include "esp_netif.h"
#include "esp_netif_ppp.h"
#include "lwip/netif.h"
struct esp_netif_netstack_lwip_vanilla_config {
err_t (*init_fn)(struct netif*);
void (*input_fn)(void *netif, void *buffer, size_t len, void *eb);
};
struct esp_netif_netstack_lwip_ppp_config {
void (*input_fn)(void *netif, void *buffer, size_t len, void *eb);
esp_netif_ppp_config_t ppp_events;
};
// LWIP netif specific network stack configuration
struct esp_netif_netstack_config {
union {
struct esp_netif_netstack_lwip_vanilla_config lwip;
struct esp_netif_netstack_lwip_ppp_config lwip_ppp;
};
};
struct esp_netif_api_msg_s;
typedef int (*esp_netif_api_fn)(struct esp_netif_api_msg_s *msg);
typedef struct esp_netif_api_msg_s {
int type; /**< The first field MUST be int */
int ret;
esp_netif_api_fn api_fn;
esp_netif_t *esp_netif;
void *data;
} esp_netif_api_msg_t;
typedef struct esp_netif_dns_param_s {
esp_netif_dns_type_t dns_type;
esp_netif_dns_info_t *dns_info;
} esp_netif_dns_param_t;
typedef struct esp_netif_ip_lost_timer_s {
bool timer_running;
} esp_netif_ip_lost_timer_t;
// Forward declare the ppp context
typedef struct lwip_ppp_ctx lwip_ppp_ctx_t;
/**
* @brief Main esp-netif container with interface related information
*/
struct esp_netif_obj {
// default interface addresses
uint8_t mac[NETIF_MAX_HWADDR_LEN];
esp_netif_ip_info_t* ip_info;
esp_netif_ip_info_t* ip_info_old;
// lwip netif related
struct netif *lwip_netif;
lwip_ppp_ctx_t *lwip_ppp_ctx;
err_t (*lwip_init_fn)(struct netif*);
void (*lwip_input_fn)(void *input_netif_handle, void *buffer, size_t len, void *eb);
void * netif_handle; // netif impl context (either vanilla lwip-netif or ppp_pcb)
bool is_ppp_netif;
// io driver related
void* driver_handle;
esp_err_t (*driver_transmit)(void *h, void *buffer, size_t len);
void (*driver_free_rx_buffer)(void *h, void* buffer);
// dhcp related
esp_netif_dhcp_status_t dhcpc_status;
esp_netif_dhcp_status_t dhcps_status;
bool timer_running;
// event translation
ip_event_t get_ip_event;
ip_event_t lost_ip_event;
// misc flags, types, keys, priority
esp_netif_flags_t flags;
char * hostname;
char * if_key;
char * if_desc;
int route_prio;
};