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6acdb384f6
Introducing config option `CONFIG_ESP_NETIF_SET_DNS_PER_DEFAULT_NETIF` to overcome LWIP limitation of using global DNS server info. This config option enables LWIP callbacks to collect per netif DNS server info and then restores global DNS servers of whichever network interface is selected as default. LWIP submodule update: git log --oneline aa4f6e78..3a3d1fb3 - dns: Allow storing dnsserver per netif (espressif/esp-lwip@3a3d1fb3)
136 lines
3.8 KiB
C
136 lines
3.8 KiB
C
/*
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* SPDX-FileCopyrightText: 2015-2024 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_netif.h"
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#include "esp_netif_ppp.h"
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#include "lwip/netif.h"
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#include "lwip/esp_netif_net_stack.h"
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#ifdef CONFIG_LWIP_DHCPS
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#include "dhcpserver/dhcpserver.h"
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#endif
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struct esp_netif_api_msg_s;
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typedef int (*esp_netif_api_fn)(struct esp_netif_api_msg_s *msg);
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typedef struct esp_netif_api_msg_s {
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int type; /**< The first field MUST be int */
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int ret;
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esp_netif_api_fn api_fn;
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union {
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esp_netif_t *esp_netif; /* esp_netif as input param */
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esp_netif_t **p_esp_netif; /* esp_netif as output */
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esp_netif_callback_fn user_fn; /* user callback */
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}; /* Commonly used parameters what calling api_fn */
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void *data;
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} esp_netif_api_msg_t;
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typedef struct esp_netif_dns_param_s {
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esp_netif_dns_type_t dns_type;
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esp_netif_dns_info_t *dns_info;
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} esp_netif_dns_param_t;
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typedef struct esp_netif_ip_lost_timer_s {
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bool timer_running;
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} esp_netif_ip_lost_timer_t;
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/**
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* @brief Check the netif if of a specific P2P type
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*/
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#if CONFIG_PPP_SUPPORT
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#define ESP_NETIF_IS_POINT2POINT_TYPE(netif, type) (netif->related_data && netif->related_data->is_point2point && netif->related_data->netif_type == type)
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#else
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#define ESP_NETIF_IS_POINT2POINT_TYPE(netif, type) false
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#endif
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/**
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* @brief Additional netif types when related data are needed
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*/
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enum netif_types {
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COMMON_LWIP_NETIF,
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PPP_LWIP_NETIF,
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};
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/**
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* @brief Related data to esp-netif (additional data for some special types of netif
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* (typically for point-point network types, such as PPP)
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*/
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typedef struct netif_related_data {
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bool is_point2point;
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enum netif_types netif_type;
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} netif_related_data_t;
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/**
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* @brief Main esp-netif container with interface related information
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*/
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struct esp_netif_obj {
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// default interface addresses
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uint8_t mac[NETIF_MAX_HWADDR_LEN];
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esp_netif_ip_info_t* ip_info;
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esp_netif_ip_info_t* ip_info_old;
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// lwip netif related
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struct netif *lwip_netif;
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err_t (*lwip_init_fn)(struct netif*);
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esp_netif_recv_ret_t (*lwip_input_fn)(void *input_netif_handle, void *buffer, size_t len, void *eb);
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void * netif_handle; // netif impl context (either vanilla lwip-netif or ppp_pcb)
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netif_related_data_t *related_data; // holds additional data for specific netifs
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#if ESP_DHCPS
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dhcps_t *dhcps;
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#endif
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// io driver related
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void* driver_handle;
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esp_err_t (*driver_transmit)(void *h, void *buffer, size_t len);
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esp_err_t (*driver_transmit_wrap)(void *h, void *buffer, size_t len, void *pbuf);
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void (*driver_free_rx_buffer)(void *h, void* buffer);
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// dhcp related
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esp_netif_dhcp_status_t dhcpc_status;
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esp_netif_dhcp_status_t dhcps_status;
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bool timer_running;
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// event translation
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ip_event_t get_ip_event;
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ip_event_t lost_ip_event;
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#ifdef CONFIG_ESP_NETIF_REPORT_DATA_TRAFFIC
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bool tx_rx_events_enabled;
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#endif
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// misc flags, types, keys, priority
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esp_netif_flags_t flags;
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char * hostname;
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char * if_key;
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char * if_desc;
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int route_prio;
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#if CONFIG_ESP_NETIF_BRIDGE_EN
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// bridge configuration
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uint16_t max_fdb_dyn_entries;
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uint16_t max_fdb_sta_entries;
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uint8_t max_ports;
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#endif // CONFIG_ESP_NETIF_BRIDGE_EN
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// mldv6 timer
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bool mldv6_report_timer_started;
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#ifdef CONFIG_ESP_NETIF_SET_DNS_PER_DEFAULT_NETIF
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ip_addr_t dns[DNS_MAX_SERVERS];
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#endif
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};
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typedef enum esp_netif_set_default_state {
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ESP_NETIF_UNDEF,
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ESP_NETIF_STARTED,
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ESP_NETIF_GOT_IP,
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ESP_NETIF_STOPPED,
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ESP_NETIF_LOST_IP,
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ESP_NETIF_SET_DEFAULT,
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} esp_netif_route_prio_action_t;
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esp_err_t esp_netif_update_default_netif(esp_netif_t *esp_netif, esp_netif_route_prio_action_t action);
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