/* * SPDX-FileCopyrightText: 2019-2022 Espressif Systems (Shanghai) CO LTD * * SPDX-License-Identifier: Apache-2.0 */ #include #include #include #include "esp_check.h" #include "esp_netif_lwip_internal.h" #include "lwip/esp_netif_net_stack.h" #include "esp_netif.h" #include "esp_netif_private.h" #include "esp_random.h" #include "lwip/tcpip.h" #include "lwip/dhcp.h" #include "lwip/ip_addr.h" #include "lwip/ip6_addr.h" #include "lwip/mld6.h" #include "lwip/nd6.h" #include "lwip/snmp.h" #include "lwip/priv/tcpip_priv.h" #include "lwip/netif.h" #include "lwip/etharp.h" #if CONFIG_ESP_NETIF_BRIDGE_EN #include "netif/bridgeif.h" #endif // CONFIG_ESP_NETIF_BRIDGE_EN #if LWIP_DNS /* don't build if not configured for use in lwipopts.h */ #include "lwip/dns.h" #endif // LWIP_DNS #if CONFIG_LWIP_HOOK_TCP_ISN_DEFAULT #include "lwip_default_hooks.h" #endif // CONFIG_LWIP_HOOK_TCP_ISN_DEFAULT #include "esp_netif_lwip_ppp.h" #include "dhcpserver/dhcpserver.h" #include "dhcpserver/dhcpserver_options.h" #include "netif/dhcp_state.h" #include "esp_event.h" #include "esp_log.h" // // This is the main module implementing lwip interaction with esp-netif // #define ESP_NETIF_HOSTNAME_MAX_SIZE 32 #define DHCP_CB_CHANGE (LWIP_NSC_IPV4_SETTINGS_CHANGED | LWIP_NSC_IPV4_ADDRESS_CHANGED | LWIP_NSC_IPV4_GATEWAY_CHANGED | LWIP_NSC_IPV4_NETMASK_CHANGED) /** * @brief lwip thread safe tcpip function utility macros */ #define _RUN_IN_LWIP_TASK(function, netif, param) { return esp_netif_lwip_ipc_call(function, netif, (void *)(param)); } /** * @brief macros to check netif related data to evaluate interface type */ #if CONFIG_PPP_SUPPORT #define _IS_NETIF_ANY_POINT2POINT_TYPE(netif) (netif->related_data && netif->related_data->is_point2point) #else #define _IS_NETIF_ANY_POINT2POINT_TYPE(netif) false #endif #define _RUN_IN_LWIP_TASK_IF_SUPPORTED(function, netif, param) \ { \ if (_IS_NETIF_ANY_POINT2POINT_TYPE(netif)) { \ return ESP_ERR_NOT_SUPPORTED; \ } \ return esp_netif_lwip_ipc_call(function, netif, (void *)(param)); \ } /** * @brief If netif protocol not enabled in menuconfig, log the error and return appropriate code indicating failure */ #define LOG_NETIF_DISABLED_AND_DO(proto, action) \ do { \ ESP_LOGE(TAG, "%s not supported, please enable it in lwIP component configuration", proto); \ action; \ } while(0) // // Internal types // typedef enum esp_netif_action { ESP_NETIF_UNDEF, ESP_NETIF_STARTED, ESP_NETIF_STOPPED, ESP_NETIF_SET_DEFAULT, } esp_netif_action_t; // // Internal variables for this module // static const char *TAG = "esp_netif_lwip"; #if LWIP_ESP_NETIF_DATA static u8_t lwip_netif_client_id = 0xff; #endif static esp_netif_t *s_last_default_esp_netif = NULL; static bool s_is_last_default_esp_netif_overridden = false; static netif_ext_callback_t netif_callback = { .callback_fn = NULL, .next = NULL }; static void esp_netif_internal_dhcpc_cb(struct netif *netif); #if LWIP_IPV6 static void esp_netif_internal_nd6_cb(struct netif *p_netif, uint8_t ip_index); #endif /* LWIP_IPV6 */ static void netif_callback_fn(struct netif* netif, netif_nsc_reason_t reason, const netif_ext_callback_args_t* args) { if (reason & DHCP_CB_CHANGE) { esp_netif_internal_dhcpc_cb(netif); } #if LWIP_IPV6 if ((reason & LWIP_NSC_IPV6_ADDR_STATE_CHANGED) && (args != NULL)) { s8_t addr_idx = args->ipv6_addr_state_changed.addr_index; if (netif_ip6_addr_state(netif, addr_idx) & IP6_ADDR_VALID) { /* address is valid -> call the callback function */ esp_netif_internal_nd6_cb(netif, addr_idx); } } #endif /* #if LWIP_IPV6 */ } #if LWIP_ESP_NETIF_DATA static esp_err_t alloc_client_data_id(esp_netif_api_msg_t *msg) { uint8_t *client_data_id = msg->data; *client_data_id = netif_alloc_client_data_id(); return ESP_OK; } #endif // LWIP_ESP_NETIF_DATA static esp_err_t set_lwip_netif_callback(struct esp_netif_api_msg_s *msg) { (void)msg; netif_add_ext_callback(&netif_callback, netif_callback_fn); return ESP_OK; } static esp_err_t remove_lwip_netif_callback(struct esp_netif_api_msg_s *msg) { (void)msg; netif_remove_ext_callback(&netif_callback); memset(&netif_callback, 0, sizeof(netif_callback)); return ESP_OK; } static void dns_clear_servers(bool keep_fallback) { u8_t numdns = 0; for (numdns = 0; numdns < DNS_MAX_SERVERS; numdns ++) { if (keep_fallback && numdns == DNS_FALLBACK_SERVER_INDEX) { continue; } dns_setserver(numdns, NULL); } } #ifdef CONFIG_LWIP_GARP_TMR_INTERVAL static void netif_send_garp(void *arg) { struct netif *netif = arg; etharp_gratuitous(netif); sys_timeout(CONFIG_LWIP_GARP_TMR_INTERVAL*1000, netif_send_garp, netif); } static void netif_set_garp_flag(struct netif *netif) { sys_timeout(CONFIG_LWIP_GARP_TMR_INTERVAL*1000, netif_send_garp, netif); } static void netif_unset_garp_flag(struct netif *netif) { sys_untimeout(netif_send_garp, netif); } #endif // CONFIG_LWIP_GARP_TMR_INTERVAL #if !LWIP_TCPIP_CORE_LOCKING static sys_sem_t api_sync_sem = NULL; static sys_sem_t api_lock_sem = NULL; #endif /** * @brief Api callback from tcpip thread used to call esp-netif * function in lwip task context */ static void esp_netif_api_cb(void *api_msg) { esp_netif_api_msg_t *msg = (esp_netif_api_msg_t *)api_msg; if (!msg || !msg->api_fn) { ESP_LOGD(TAG, "null msg/api_fn"); return; } msg->ret = msg->api_fn(msg); ESP_LOGD(TAG, "call api in lwip: ret=0x%x, give sem", msg->ret); #if !LWIP_TCPIP_CORE_LOCKING sys_sem_signal(&api_sync_sem); #endif } /** * @brief Initiates a tcpip remote call if called from another task * or calls the function directly if executed from lwip task */ static inline esp_err_t esp_netif_lwip_ipc_call_msg(esp_netif_api_msg_t *msg) { if (!sys_thread_tcpip(LWIP_CORE_LOCK_QUERY_HOLDER)) { ESP_LOGD(TAG, "check: remote, if=%p fn=%p\n", msg->esp_netif, msg->api_fn); #if LWIP_TCPIP_CORE_LOCKING tcpip_send_msg_wait_sem((tcpip_callback_fn)esp_netif_api_cb, msg, NULL); #else sys_arch_sem_wait(&api_lock_sem, 0); tcpip_send_msg_wait_sem((tcpip_callback_fn)esp_netif_api_cb, msg, &api_sync_sem); sys_sem_signal(&api_lock_sem); #endif /* LWIP_TCPIP_CORE_LOCKING */ return msg->ret; } ESP_LOGD(TAG, "check: local, if=%p fn=%p\n", msg->esp_netif, msg->api_fn); return msg->api_fn(msg); } static inline esp_err_t esp_netif_lwip_ipc_call(esp_netif_api_fn fn, esp_netif_t* netif, void *data) { esp_netif_api_msg_t msg = { .esp_netif = netif, .data = data, .api_fn = fn }; return esp_netif_lwip_ipc_call_msg(&msg); } static inline esp_err_t esp_netif_lwip_ipc_call_fn(esp_netif_api_fn fn, esp_netif_callback_fn user_fn, void *ctx) { esp_netif_api_msg_t msg = { .user_fn = user_fn, .data = ctx, .api_fn = fn }; return esp_netif_lwip_ipc_call_msg(&msg); } static inline esp_err_t esp_netif_lwip_ipc_no_args(esp_netif_api_fn fn) { esp_netif_api_msg_t msg = { .api_fn = fn }; return esp_netif_lwip_ipc_call_msg(&msg); } /** * @brief Check if supplied esp_netif handle is active, i.e. available within registered interfaces * as it might have already been destroyed. Returns the supplied handle if active, nullptr otherwise * * @param esp_netif handle to check if available in the list of registered interfaces * @return esp_netif handle if available, or NULL if it wasn't found */ static esp_netif_t* esp_netif_is_active(esp_netif_t *arg) { // looking for the netif in the list of registered interfaces // as it might have already been destroyed if (esp_netif_is_netif_listed(arg)) { return arg; } return NULL; } /** * @brief This function sets default netif no matter which implementation used * * @param esp_netif handle to network interface * * @note: This function must be called from lwip thread */ static void esp_netif_set_default_netif_internal(esp_netif_t *esp_netif) { if (ESP_NETIF_IS_POINT2POINT_TYPE(esp_netif, PPP_LWIP_NETIF)) { #if CONFIG_PPP_SUPPORT esp_netif_ppp_set_default_netif(esp_netif->netif_handle); #endif } else { netif_set_default(esp_netif->lwip_netif); } } /** * @brief tcpip thread version of esp_netif_update_default_netif * * @note This function and all functions called from this must be called from lwip task context */ static esp_err_t esp_netif_update_default_netif_lwip(esp_netif_api_msg_t *msg) { esp_netif_t *esp_netif = msg->esp_netif; esp_netif_action_t action = (esp_netif_action_t)msg->data; ESP_LOGD(TAG, "%s %p", __func__, esp_netif); if (s_is_last_default_esp_netif_overridden && action != ESP_NETIF_SET_DEFAULT) { // check if manually configured default interface hasn't been destroyed s_last_default_esp_netif = esp_netif_is_active(s_last_default_esp_netif); if (s_last_default_esp_netif != NULL) { return ESP_OK; // still valid -> don't update default netif } // invalid -> reset the manual override and perform auto update s_is_last_default_esp_netif_overridden = false; } switch (action) { case ESP_NETIF_SET_DEFAULT: s_last_default_esp_netif = esp_netif; s_is_last_default_esp_netif_overridden = true; esp_netif_set_default_netif_internal(s_last_default_esp_netif); break; case ESP_NETIF_STARTED: { // check if previously default interface hasn't been destroyed in the meantime s_last_default_esp_netif = esp_netif_is_active(s_last_default_esp_netif); if (s_last_default_esp_netif && esp_netif_is_netif_up(s_last_default_esp_netif) && (s_last_default_esp_netif->route_prio > esp_netif->route_prio)) { esp_netif_set_default_netif_internal(s_last_default_esp_netif); } else if (esp_netif_is_netif_up(esp_netif)) { s_last_default_esp_netif = esp_netif; esp_netif_set_default_netif_internal(s_last_default_esp_netif); } } break; default: case ESP_NETIF_STOPPED: { s_last_default_esp_netif = NULL; esp_netif_list_lock(); esp_netif_t *netif = esp_netif_next_unsafe(NULL); while (netif) { if (esp_netif_is_netif_up(netif)) { if (s_last_default_esp_netif && esp_netif_is_netif_up(s_last_default_esp_netif)) { if (netif->route_prio > s_last_default_esp_netif->route_prio) { s_last_default_esp_netif = netif; } // else not needed, as the s_last_default_esp_netif is correct } else { // s_last_default is either not set or down, current netif is up s_last_default_esp_netif = netif; } } netif = esp_netif_next_unsafe(netif); } esp_netif_list_unlock(); if (s_last_default_esp_netif && esp_netif_is_netif_up(s_last_default_esp_netif)) { esp_netif_set_default_netif_internal(s_last_default_esp_netif); } } break; } return ESP_OK; } /** * @brief This function sets default routing netif based on priorities of all interfaces which are up * * @param esp_netif current interface which just updated state * @param action updating action (on-off) */ static esp_err_t esp_netif_update_default_netif(esp_netif_t *esp_netif, esp_netif_action_t action) { return esp_netif_lwip_ipc_call(esp_netif_update_default_netif_lwip, esp_netif, (void*)action); } esp_err_t esp_netif_set_default_netif(esp_netif_t *esp_netif) { return esp_netif_update_default_netif(esp_netif, ESP_NETIF_SET_DEFAULT); } esp_netif_t *esp_netif_get_default_netif(void) { return s_last_default_esp_netif; } static inline esp_netif_t* lwip_get_esp_netif(struct netif *netif) { #if LWIP_ESP_NETIF_DATA return (esp_netif_t*)netif_get_client_data(netif, lwip_netif_client_id); #else return (esp_netif_t*)netif->state; #endif } static inline void lwip_set_esp_netif(struct netif *netif, esp_netif_t* esp_netif) { #if LWIP_ESP_NETIF_DATA netif_set_client_data(netif, lwip_netif_client_id, esp_netif); #else netif->state = esp_netif; #endif } #if CONFIG_ESP_NETIF_BRIDGE_EN esp_err_t esp_netif_bridge_add_port(esp_netif_t *esp_netif_br, esp_netif_t *esp_netif_port) { if (ERR_OK != bridgeif_add_port(esp_netif_br->lwip_netif, esp_netif_port->lwip_netif)) { return ESP_FAIL; } return ESP_OK; } esp_err_t esp_netif_bridge_fdb_add(esp_netif_t *esp_netif_br, uint8_t *addr, uint64_t ports_mask) { bridgeif_portmask_t ports = (bridgeif_portmask_t)ports_mask; if (ports_mask & ESP_NETIF_BR_FDW_CPU) { ports |= 1 << BRIDGEIF_MAX_PORTS; } if (ERR_OK != bridgeif_fdb_add(esp_netif_br->lwip_netif, (const struct eth_addr *)addr, ports)) { return ESP_FAIL; } return ESP_OK; } esp_err_t esp_netif_bridge_fdb_remove(esp_netif_t *esp_netif_br, uint8_t *addr) { if (ERR_OK != bridgeif_fdb_remove(esp_netif_br->lwip_netif, (const struct eth_addr *)addr)) { return ESP_FAIL; } return ESP_OK; } #endif // CONFIG_ESP_NETIF_BRIDGE_EN void esp_netif_set_ip4_addr(esp_ip4_addr_t *addr, uint8_t a, uint8_t b, uint8_t c, uint8_t d) { ip4_addr_t *address = (ip4_addr_t*)addr; IP4_ADDR(address, a, b, c, d); } char * esp_ip4addr_ntoa(const esp_ip4_addr_t *addr, char *buf, int buflen) { return ip4addr_ntoa_r((ip4_addr_t *)addr, buf, buflen); } uint32_t esp_ip4addr_aton(const char *addr) { return ipaddr_addr(addr); } esp_err_t esp_netif_str_to_ip4(const char *src, esp_ip4_addr_t *dst) { if (src == NULL || dst == NULL) { return ESP_ERR_INVALID_ARG; } int err = inet_pton(AF_INET, src, dst); return err == 1 ? ESP_OK : ESP_FAIL; } esp_err_t esp_netif_str_to_ip6(const char *src, esp_ip6_addr_t *dst) { if (src == NULL || dst == NULL) { return ESP_ERR_INVALID_ARG; } int err = inet_pton(AF_INET6, src, dst); return err == 1 ? ESP_OK : ESP_FAIL; } esp_netif_iodriver_handle esp_netif_get_io_driver(esp_netif_t *esp_netif) { return esp_netif->driver_handle; } esp_netif_t* esp_netif_get_handle_from_netif_impl(void *dev) { // ppp_pcb ptr would never get to app code, so this function only works with vanilla lwip impl struct netif *lwip_netif = dev; return lwip_get_esp_netif(lwip_netif); } void* esp_netif_get_netif_impl(esp_netif_t *esp_netif) { // get impl ptr only for vanilla lwip impl (ppp_pcb not supported) if (esp_netif && !ESP_NETIF_IS_POINT2POINT_TYPE(esp_netif, PPP_LWIP_NETIF)) { return esp_netif->lwip_netif; } return NULL; } static void tcpip_init_done(void *arg) { sys_sem_t *init_sem = arg; sys_sem_signal(init_sem); } esp_err_t esp_netif_init(void) { if (!sys_thread_tcpip(LWIP_CORE_IS_TCPIP_INITIALIZED)) { #if CONFIG_LWIP_HOOK_TCP_ISN_DEFAULT uint8_t rand_buf[16]; /* * This is early startup code where WiFi/BT is yet to be enabled and hence * relevant entropy source is not available. However, bootloader enables * SAR ADC based entropy source at its initialization, and our requirement * of random bytes is pretty small (16), so we can assume that following * API will provide sufficiently random data. */ esp_fill_random(rand_buf, sizeof(rand_buf)); lwip_init_tcp_isn(esp_log_timestamp(), rand_buf); #endif sys_sem_t init_sem; if (sys_sem_new(&init_sem, 0) != ERR_OK) { ESP_LOGE(TAG, "esp netif cannot create tcpip_init semaphore"); return ESP_FAIL; } #if LWIP_TCPIP_CORE_LOCKING /* TCPIP thread is not initialized yet, * pretend that the calling thread is holder * to correctly set up the TCPIP task */ sys_thread_tcpip(LWIP_CORE_LOCK_MARK_HOLDER); #endif tcpip_init(tcpip_init_done, &init_sem); sys_sem_wait(&init_sem); sys_sem_free(&init_sem); ESP_LOGD(TAG, "LwIP stack has been initialized"); } #if !LWIP_TCPIP_CORE_LOCKING if (!api_sync_sem) { if (ERR_OK != sys_sem_new(&api_sync_sem, 0)) { ESP_LOGE(TAG, "esp netif api sync sem init fail"); return ESP_FAIL; } } if (!api_lock_sem) { if (ERR_OK != sys_sem_new(&api_lock_sem, 1)) { ESP_LOGE(TAG, "esp netif api lock sem init fail"); return ESP_FAIL; } } #endif #if LWIP_ESP_NETIF_DATA if (lwip_netif_client_id == 0xFF) { esp_netif_lwip_ipc_call(alloc_client_data_id, NULL, &lwip_netif_client_id); } #endif ESP_LOGD(TAG, "esp-netif has been successfully initialized"); return ESP_OK; } esp_err_t esp_netif_deinit(void) { if (sys_thread_tcpip(LWIP_CORE_IS_TCPIP_INITIALIZED)) { /* deinit of LwIP not supported: * do not deinit semaphores and states, * so init could be called multiple times * sys_sem_free(&api_sync_sem); sys_sem_free(&api_lock_sem); */ return ESP_ERR_NOT_SUPPORTED; } return ESP_ERR_INVALID_STATE; } static esp_err_t esp_netif_init_configuration(esp_netif_t *esp_netif, const esp_netif_config_t *cfg) { // Basic esp_netif and lwip is a mandatory configuration and cannot be updated after esp_netif_new() if (cfg == NULL || cfg->base == NULL || cfg->stack == NULL) { return ESP_ERR_ESP_NETIF_INVALID_PARAMS; } // Configure general esp-netif properties memcpy(esp_netif->mac, cfg->base->mac, NETIF_MAX_HWADDR_LEN); if (cfg->base->ip_info == NULL) { ip4_addr_set_zero(&esp_netif->ip_info->ip); ip4_addr_set_zero(&esp_netif->ip_info->gw); ip4_addr_set_zero(&esp_netif->ip_info->netmask); } else { memcpy(esp_netif->ip_info, cfg->base->ip_info, sizeof(esp_netif_ip_info_t)); } memcpy(esp_netif->ip_info_old, esp_netif->ip_info, sizeof(esp_netif_ip_info_t)); // Setup main config parameters esp_netif->lost_ip_event = cfg->base->lost_ip_event; esp_netif->get_ip_event = cfg->base->get_ip_event; esp_netif->flags = cfg->base->flags; if (cfg->base->if_key) { esp_netif->if_key = strdup(cfg->base->if_key); } if (cfg->base->if_desc) { esp_netif->if_desc = strdup(cfg->base->if_desc); } if (cfg->base->route_prio) { esp_netif->route_prio = cfg->base->route_prio; } #if CONFIG_ESP_NETIF_BRIDGE_EN // Setup bridge configuration if the interface is to be bridge if (cfg->base->flags & ESP_NETIF_FLAG_IS_BRIDGE) { if (cfg->base->bridge_info != NULL) { esp_netif->max_fdb_dyn_entries = cfg->base->bridge_info->max_fdb_dyn_entries; esp_netif->max_fdb_sta_entries = cfg->base->bridge_info->max_fdb_sta_entries; esp_netif->max_ports = cfg->base->bridge_info->max_ports; } else { return ESP_ERR_ESP_NETIF_INVALID_PARAMS; } } #endif // CONFIG_ESP_NETIF_BRIDGE_EN // Install network stack functions -- connects netif and L3 stack const esp_netif_netstack_config_t *esp_netif_stack_config = cfg->stack; if (cfg->base->flags & ESP_NETIF_FLAG_IS_PPP) { #if CONFIG_PPP_SUPPORT esp_netif->related_data = esp_netif_new_ppp(esp_netif, esp_netif_stack_config); if (esp_netif->related_data == NULL) { return ESP_ERR_ESP_NETIF_INIT_FAILED; } esp_netif->lwip_input_fn = esp_netif_stack_config->lwip_ppp.input_fn; // Make the netif handle (used for tcpip input function) the ppp_netif esp_netif->netif_handle = esp_netif->related_data; #else LOG_NETIF_DISABLED_AND_DO("PPP", return ESP_ERR_NOT_SUPPORTED); #endif } else { if (esp_netif_stack_config-> lwip.init_fn) { esp_netif->lwip_init_fn = esp_netif_stack_config->lwip.init_fn; } if (esp_netif_stack_config->lwip.input_fn) { esp_netif->lwip_input_fn = esp_netif_stack_config->lwip.input_fn; } // Make the netif handle (used for tcpip input function) the lwip_netif itself esp_netif->netif_handle = esp_netif->lwip_netif; } // Install IO functions only if provided -- connects driver and netif // this configuration could be updated after esp_netif_new(), typically in post_attach callback if (cfg->driver) { const esp_netif_driver_ifconfig_t *esp_netif_driver_config = cfg->driver; if (esp_netif_driver_config->handle) { esp_netif->driver_handle = esp_netif_driver_config->handle; } if (esp_netif_driver_config->transmit) { esp_netif->driver_transmit = esp_netif_driver_config->transmit; } if (esp_netif_driver_config->transmit_wrap) { esp_netif->driver_transmit_wrap = esp_netif_driver_config->transmit_wrap; } if (esp_netif_driver_config->driver_free_rx_buffer) { esp_netif->driver_free_rx_buffer = esp_netif_driver_config->driver_free_rx_buffer; } } return ESP_OK; } static esp_err_t tcpip_exec_api(esp_netif_api_msg_t *msg) { return msg->user_fn(msg->data); } esp_err_t esp_netif_tcpip_exec(esp_netif_callback_fn fn, void*ctx) { return esp_netif_lwip_ipc_call_fn(tcpip_exec_api, fn, ctx); } esp_netif_t *esp_netif_new(const esp_netif_config_t *esp_netif_config) { // mandatory configuration must be provided when creating esp_netif object if (esp_netif_config == NULL || esp_netif_config->base->if_key == NULL || NULL != esp_netif_get_handle_from_ifkey(esp_netif_config->base->if_key)) { ESP_LOGE(TAG, "%s: Failed to configure netif with config=%p (config or if_key is NULL or duplicate key)", __func__, esp_netif_config); return NULL; } #if ESP_DHCPS // DHCP server and client cannot be configured together if((esp_netif_config->base->flags & ESP_NETIF_DHCP_SERVER) && (esp_netif_config->base->flags & ESP_NETIF_DHCP_CLIENT)) { ESP_LOGE(TAG, "%s: Failed to configure netif with config=%p (DHCP server and client cannot be configured together)", __func__, esp_netif_config); return NULL; } #endif // Create parent esp-netif object esp_netif_t *esp_netif = calloc(1, sizeof(struct esp_netif_obj)); if (!esp_netif) { ESP_LOGE(TAG, "Failed to allocate %d bytes (free heap size %d)", sizeof(struct esp_netif_obj), esp_get_free_heap_size()); return NULL; } // Create ip info esp_netif_ip_info_t *ip_info = calloc(1, sizeof(esp_netif_ip_info_t)); if (!ip_info) { ESP_LOGE(TAG, "Failed to allocate %d bytes (free heap size %d)", sizeof(esp_netif_ip_info_t), esp_get_free_heap_size()); free(esp_netif); return NULL; } esp_netif->ip_info = ip_info; // creating another ip info (to store old ip) ip_info = calloc(1, sizeof(esp_netif_ip_info_t)); if (!ip_info) { ESP_LOGE(TAG, "Failed to allocate %d bytes (free heap size %d)", sizeof(esp_netif_ip_info_t), esp_get_free_heap_size()); free(esp_netif->ip_info); free(esp_netif); return NULL; } esp_netif->ip_info_old = ip_info; // Create underlying lwip netif #if LWIP_ESP_NETIF_DATA // Optionally allocate netif client data for esp-netif ptr // to allow for running esp_netif_new() before esp_netif_init() if (lwip_netif_client_id == 0xFF) { esp_netif_lwip_ipc_call(alloc_client_data_id, NULL, &lwip_netif_client_id); } #endif struct netif * lwip_netif = calloc(1, sizeof(struct netif)); if (!lwip_netif) { ESP_LOGE(TAG, "Failed to allocate %d bytes (free heap size %d)", sizeof(struct netif), esp_get_free_heap_size()); free(esp_netif->ip_info_old); free(esp_netif->ip_info); free(esp_netif); return NULL; } esp_netif->lwip_netif = lwip_netif; esp_netif_add_to_list(esp_netif); #if ESP_DHCPS // Create DHCP server structure if (esp_netif_config->base->flags & ESP_NETIF_DHCP_SERVER) { esp_netif->dhcps = dhcps_new(); if (esp_netif->dhcps == NULL) { ESP_LOGE(TAG, "Failed to create dhcp server handle"); esp_netif_destroy(esp_netif); return NULL; } } #endif // Configure the created object with provided configuration esp_err_t ret = esp_netif_init_configuration(esp_netif, esp_netif_config); if (ret != ESP_OK) { ESP_LOGE(TAG, "Initial configuration of esp_netif failed with %d", ret); esp_netif_destroy(esp_netif); return NULL; } lwip_set_esp_netif(lwip_netif, esp_netif); if (netif_callback.callback_fn == NULL ) { esp_netif_lwip_ipc_no_args(set_lwip_netif_callback); } return esp_netif; } static void esp_netif_lwip_remove(esp_netif_t *esp_netif) { if (esp_netif->lwip_netif) { if (netif_is_up(esp_netif->lwip_netif)) { netif_set_down(esp_netif->lwip_netif); } netif_remove(esp_netif->lwip_netif); #if ESP_GRATUITOUS_ARP if (esp_netif->flags & ESP_NETIF_FLAG_GARP) { netif_unset_garp_flag(esp_netif->lwip_netif); } #endif if (esp_netif->flags & ESP_NETIF_DHCP_CLIENT) { dhcp_cleanup(esp_netif->lwip_netif); } } } static esp_err_t esp_netif_lwip_add(esp_netif_t *esp_netif) { if (esp_netif->lwip_netif == NULL) { esp_netif->lwip_netif = calloc(1, sizeof(struct netif)); if (esp_netif->lwip_netif == NULL) { return ESP_ERR_NO_MEM; } } if (esp_netif->flags & ESP_NETIF_FLAG_IS_PPP) { #if CONFIG_PPP_SUPPORT err_t err = esp_netif->lwip_init_fn(NULL); if (err != ERR_OK) { ESP_LOGE(TAG, "Init netif failed with %d", err); return ESP_ERR_ESP_NETIF_INIT_FAILED; } #else LOG_NETIF_DISABLED_AND_DO("PPP", return ESP_ERR_NOT_SUPPORTED); #endif } #if CONFIG_ESP_NETIF_BRIDGE_EN if (esp_netif->flags & ESP_NETIF_FLAG_IS_BRIDGE) { bridgeif_initdata_t bridge_initdata = { .max_fdb_dynamic_entries = esp_netif->max_fdb_dyn_entries, .max_fdb_static_entries = esp_netif->max_fdb_sta_entries, .max_ports = esp_netif->max_ports }; memcpy(&bridge_initdata.ethaddr, esp_netif->mac, ETH_HWADDR_LEN); if (NULL == netif_add(esp_netif->lwip_netif, (struct ip4_addr*)&esp_netif->ip_info->ip, (struct ip4_addr*)&esp_netif->ip_info->netmask, (struct ip4_addr*)&esp_netif->ip_info->gw, &bridge_initdata, esp_netif->lwip_init_fn, tcpip_input)) { esp_netif_lwip_remove(esp_netif); return ESP_ERR_ESP_NETIF_IF_NOT_READY; } } else { #endif // CONFIG_ESP_NETIF_BRIDGE_EN if (NULL == netif_add(esp_netif->lwip_netif, (struct ip4_addr*)&esp_netif->ip_info->ip, (struct ip4_addr*)&esp_netif->ip_info->netmask, (struct ip4_addr*)&esp_netif->ip_info->gw, esp_netif, esp_netif->lwip_init_fn, tcpip_input)) { esp_netif_lwip_remove(esp_netif); return ESP_ERR_ESP_NETIF_IF_NOT_READY; } #if CONFIG_ESP_NETIF_BRIDGE_EN } #endif // CONFIG_ESP_NETIF_BRIDGE_EN lwip_set_esp_netif(esp_netif->lwip_netif, esp_netif); return ESP_OK; } static void esp_netif_destroy_related(esp_netif_t *esp_netif) { if (ESP_NETIF_IS_POINT2POINT_TYPE(esp_netif, PPP_LWIP_NETIF)) { #if CONFIG_PPP_SUPPORT esp_netif_destroy_ppp(esp_netif->related_data); #endif } } static esp_err_t esp_netif_lwip_remove_api(esp_netif_api_msg_t *msg) { esp_netif_lwip_remove(msg->esp_netif); return ESP_OK; } void esp_netif_destroy(esp_netif_t *esp_netif) { if (esp_netif) { esp_netif_remove_from_list(esp_netif); if (esp_netif_get_nr_of_ifs() == 0) { esp_netif_lwip_ipc_no_args(remove_lwip_netif_callback); } free(esp_netif->ip_info); free(esp_netif->ip_info_old); free(esp_netif->if_key); free(esp_netif->if_desc); esp_netif_lwip_ipc_call(esp_netif_lwip_remove_api, esp_netif, NULL); esp_netif_destroy_related(esp_netif); free(esp_netif->lwip_netif); free(esp_netif->hostname); esp_netif_update_default_netif(esp_netif, ESP_NETIF_STOPPED); #if ESP_DHCPS dhcps_delete(esp_netif->dhcps); #endif free(esp_netif); } } esp_err_t esp_netif_attach(esp_netif_t *esp_netif, esp_netif_iodriver_handle driver_handle) { esp_netif_driver_base_t *base_driver = driver_handle; esp_netif->driver_handle = driver_handle; if (base_driver->post_attach) { esp_err_t ret = base_driver->post_attach(esp_netif, driver_handle); if (ret != ESP_OK) { ESP_LOGE(TAG, "Post-attach callback of driver(%p) failed with %d", driver_handle, ret); return ESP_ERR_ESP_NETIF_DRIVER_ATTACH_FAILED; } } return ESP_OK; } esp_err_t esp_netif_set_driver_config(esp_netif_t *esp_netif, const esp_netif_driver_ifconfig_t *driver_config) { if (esp_netif == NULL || driver_config == NULL) { return ESP_ERR_ESP_NETIF_INVALID_PARAMS; } esp_netif->driver_handle = driver_config->handle; esp_netif->driver_transmit = driver_config->transmit; esp_netif->driver_transmit_wrap = driver_config->transmit_wrap; esp_netif->driver_free_rx_buffer = driver_config->driver_free_rx_buffer; return ESP_OK; } static esp_err_t esp_netif_reset_ip_info(esp_netif_t *esp_netif) { ip4_addr_set_zero(&(esp_netif->ip_info->ip)); ip4_addr_set_zero(&(esp_netif->ip_info->gw)); ip4_addr_set_zero(&(esp_netif->ip_info->netmask)); return ESP_OK; } esp_err_t esp_netif_set_mac_api(esp_netif_api_msg_t *msg) { uint8_t *mac = msg->data; esp_netif_t* esp_netif = msg->esp_netif; memcpy(esp_netif->mac, mac, NETIF_MAX_HWADDR_LEN); memcpy(esp_netif->lwip_netif->hwaddr, mac, NETIF_MAX_HWADDR_LEN); return ESP_OK; } esp_err_t esp_netif_set_mac(esp_netif_t *esp_netif, uint8_t mac[]) { if (esp_netif == NULL || esp_netif->lwip_netif == NULL) { return ESP_ERR_ESP_NETIF_IF_NOT_READY; } if (_IS_NETIF_ANY_POINT2POINT_TYPE(esp_netif)) { return ESP_ERR_NOT_SUPPORTED; } return esp_netif_lwip_ipc_call(esp_netif_set_mac_api, esp_netif, mac); } esp_err_t esp_netif_get_mac(esp_netif_t *esp_netif, uint8_t mac[]) { if (esp_netif == NULL || esp_netif->lwip_netif == NULL) { return ESP_ERR_ESP_NETIF_IF_NOT_READY; } if (_IS_NETIF_ANY_POINT2POINT_TYPE(esp_netif)) { return ESP_ERR_NOT_SUPPORTED; } if (esp_netif_is_netif_up(esp_netif)) { memcpy(mac, esp_netif->lwip_netif->hwaddr, NETIF_MAX_HWADDR_LEN); return ESP_OK; } memcpy(mac, esp_netif->mac, NETIF_MAX_HWADDR_LEN); return ESP_OK; } #if ESP_DHCPS static void esp_netif_dhcps_cb(void* arg, uint8_t ip[4], uint8_t mac[6]) { esp_netif_t *esp_netif = arg; ESP_LOGD(TAG, "%s esp_netif:%p", __func__, esp_netif); ip_event_ap_staipassigned_t evt = { .esp_netif = esp_netif }; memcpy((char *)&evt.ip.addr, (char *)ip, sizeof(evt.ip.addr)); memcpy((char *)&evt.mac, mac, sizeof(evt.mac)); ESP_LOGI(TAG, "DHCP server assigned IP to a client, IP is: " IPSTR, IP2STR(&evt.ip)); ESP_LOGD(TAG, "Client's MAC: %x:%x:%x:%x:%x:%x", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); int ret = esp_event_post(IP_EVENT, IP_EVENT_AP_STAIPASSIGNED, &evt, sizeof(evt), 0); if (ESP_OK != ret) { ESP_LOGE(TAG, "dhcps cb: failed to post IP_EVENT_AP_STAIPASSIGNED (%x)", ret); } } #endif static esp_err_t esp_netif_config_sanity_check(const esp_netif_t * esp_netif) { if (esp_netif == NULL) { ESP_LOGE(TAG, "Cannot start esp_netif: esp_netif must not be null"); return ESP_ERR_INVALID_STATE; } if ((!(esp_netif->flags & ESP_NETIF_FLAG_IS_BRIDGE) && (esp_netif->driver_transmit == NULL || esp_netif->driver_handle == NULL || esp_netif->lwip_input_fn == NULL)) || esp_netif->lwip_init_fn == NULL) { ESP_LOGE(TAG, "Cannot start esp_netif: Missing mandatory configuration:\n" "esp_netif->driver_transmit: %p, esp_netif->driver_handle:%p, " "esp_netif->lwip_input_fn: %p, esp_netif->lwip_init_fn:%p", esp_netif->driver_transmit, esp_netif->driver_handle, esp_netif->lwip_input_fn, esp_netif->lwip_init_fn); return ESP_ERR_INVALID_STATE; } return ESP_OK; } static esp_err_t esp_netif_start_api(esp_netif_api_msg_t *msg) { esp_netif_t * esp_netif = msg->esp_netif; ESP_LOGD(TAG, "%s %p", __func__, esp_netif); ESP_ERROR_CHECK(esp_netif_config_sanity_check(esp_netif)); ESP_ERROR_CHECK(esp_netif_lwip_add(esp_netif)); #if ESP_IPV6_AUTOCONFIG esp_netif->lwip_netif->ip6_autoconfig_enabled = 1; #endif if (esp_netif->flags&ESP_NETIF_FLAG_GARP) { #if ESP_GRATUITOUS_ARP netif_set_garp_flag(esp_netif->lwip_netif); #else ESP_LOGW(TAG,"CONFIG_LWIP_ESP_GRATUITOUS_ARP not enabled, but esp-netif configured with ESP_NETIF_FLAG_GARP"); #endif } struct netif *p_netif = esp_netif->lwip_netif; if (esp_netif->flags&ESP_NETIF_FLAG_AUTOUP) { ESP_LOGD(TAG, "%s Setting the lwip netif%p UP", __func__, p_netif); netif_set_up(p_netif); netif_set_link_up(p_netif); } if (esp_netif->flags & ESP_NETIF_DHCP_SERVER) { #if ESP_DHCPS if (esp_netif->dhcps_status == ESP_NETIF_DHCP_INIT) { if (p_netif != NULL && netif_is_up(p_netif)) { esp_netif_ip_info_t *default_ip = esp_netif->ip_info; ip4_addr_t lwip_ip; ip4_addr_t lwip_netmask; memcpy(&lwip_ip, &default_ip->ip, sizeof(struct ip4_addr)); memcpy(&lwip_netmask, &default_ip->netmask, sizeof(struct ip4_addr)); dhcps_set_new_lease_cb(esp_netif->dhcps, esp_netif_dhcps_cb, esp_netif); dhcps_set_option_info(esp_netif->dhcps, SUBNET_MASK, (void*)&lwip_netmask, sizeof(lwip_netmask)); if (dhcps_start(esp_netif->dhcps, p_netif, lwip_ip) != ERR_OK) { ESP_LOGE(TAG, "DHCP server cannot be started"); esp_netif->dhcps_status = ESP_NETIF_DHCP_INIT; return ESP_ERR_ESP_NETIF_DHCPS_START_FAILED; } esp_netif->dhcps_status = ESP_NETIF_DHCP_STARTED; ESP_LOGI(TAG, "DHCP server started on interface %s with IP: " IPSTR, esp_netif->if_key, IP2STR(&lwip_ip)); esp_netif_update_default_netif(esp_netif, ESP_NETIF_STARTED); return ESP_OK; } else { ESP_LOGD(TAG, "DHCP server re init"); esp_netif->dhcps_status = ESP_NETIF_DHCP_INIT; return ESP_OK; } } else if (esp_netif->dhcps_status == ESP_NETIF_DHCP_STARTED) { ESP_LOGD(TAG, "DHCP server already started"); return ESP_ERR_ESP_NETIF_DHCP_ALREADY_STARTED; } return ESP_OK; #else LOG_NETIF_DISABLED_AND_DO("DHCP Server", return ESP_ERR_NOT_SUPPORTED); #endif } else if (esp_netif->flags & ESP_NETIF_DHCP_CLIENT) { if (esp_netif->dhcpc_status != ESP_NETIF_DHCP_STARTED) { if (p_netif != NULL) { struct dhcp *dhcp_data = NULL; dhcp_data = netif_dhcp_data(p_netif); if (dhcp_data == NULL) { dhcp_data = (struct dhcp *)malloc(sizeof(struct dhcp)); if (dhcp_data == NULL) { return ESP_ERR_NO_MEM; } dhcp_set_struct(p_netif, dhcp_data); } } } } esp_netif_update_default_netif(esp_netif, ESP_NETIF_STARTED); return ESP_OK; } esp_err_t esp_netif_start(esp_netif_t *esp_netif) { if (ESP_NETIF_IS_POINT2POINT_TYPE(esp_netif, PPP_LWIP_NETIF)) { #if CONFIG_PPP_SUPPORT // No need to start PPP interface in lwip thread esp_err_t ret = esp_netif_start_ppp(esp_netif); if (ret == ESP_OK) { esp_netif_update_default_netif(esp_netif, ESP_NETIF_STARTED); } return ret; #endif } return esp_netif_lwip_ipc_call(esp_netif_start_api, esp_netif, NULL); } static esp_err_t esp_netif_stop_api(esp_netif_api_msg_t *msg) { esp_netif_t *esp_netif = msg->esp_netif; struct netif *lwip_netif = esp_netif->lwip_netif; if (lwip_netif == NULL) { return ESP_ERR_ESP_NETIF_IF_NOT_READY; } if (!netif_is_up(lwip_netif)) { esp_netif_lwip_remove(esp_netif); return ESP_ERR_ESP_NETIF_IF_NOT_READY; } if (esp_netif->flags & ESP_NETIF_DHCP_SERVER) { #if ESP_DHCPS if (dhcps_stop(esp_netif->dhcps, lwip_netif) != ERR_OK || esp_netif->dhcps_status != ESP_NETIF_DHCP_STOPPED) { esp_netif->dhcps_status = ESP_NETIF_DHCP_INIT; } #else LOG_NETIF_DISABLED_AND_DO("DHCP Server", return ESP_ERR_NOT_SUPPORTED); #endif } else if (esp_netif->flags & ESP_NETIF_DHCP_CLIENT) { dhcp_release(lwip_netif); dhcp_stop(lwip_netif); dhcp_cleanup(lwip_netif); esp_netif->dhcpc_status = ESP_NETIF_DHCP_INIT; esp_netif_reset_ip_info(esp_netif); } netif_set_down(lwip_netif); esp_netif_lwip_remove(esp_netif); esp_netif_update_default_netif(esp_netif, ESP_NETIF_STOPPED); return ESP_OK; } esp_err_t esp_netif_stop(esp_netif_t *esp_netif) { if (ESP_NETIF_IS_POINT2POINT_TYPE(esp_netif, PPP_LWIP_NETIF)) { #if CONFIG_PPP_SUPPORT // No need to stop PPP interface in lwip thread esp_err_t ret = esp_netif_stop_ppp(esp_netif->related_data); if (ret == ESP_OK) { esp_netif_update_default_netif(esp_netif, ESP_NETIF_STOPPED); } return ret; #endif } return esp_netif_lwip_ipc_call(esp_netif_stop_api, esp_netif, NULL); } void esp_netif_netstack_buf_ref(void *pbuf) { pbuf_ref(pbuf); } void esp_netif_netstack_buf_free(void *pbuf) { pbuf_free(pbuf); } // // IO translate functions // void esp_netif_free_rx_buffer(void *h, void* buffer) { esp_netif_t *esp_netif = h; esp_netif->driver_free_rx_buffer(esp_netif->driver_handle, buffer); } esp_err_t esp_netif_transmit(esp_netif_t *esp_netif, void* data, size_t len) { return (esp_netif->driver_transmit)(esp_netif->driver_handle, data, len); } esp_err_t esp_netif_transmit_wrap(esp_netif_t *esp_netif, void *data, size_t len, void *pbuf) { return (esp_netif->driver_transmit_wrap)(esp_netif->driver_handle, data, len, pbuf); } esp_err_t esp_netif_receive(esp_netif_t *esp_netif, void *buffer, size_t len, void *eb) { esp_netif->lwip_input_fn(esp_netif->netif_handle, buffer, len, eb); return ESP_OK; } static esp_err_t esp_netif_start_ip_lost_timer(esp_netif_t *esp_netif); // // DHCP: // static void esp_netif_internal_dhcpc_cb(struct netif *netif) { esp_netif_t *esp_netif; ESP_LOGD(TAG, "%s lwip-netif:%p", __func__, netif); if (netif == NULL || (esp_netif = lwip_get_esp_netif(netif)) == NULL) { // internal pointer hasn't been configured yet (probably in the interface init_fn()) return; } esp_netif_ip_info_t *ip_info = esp_netif->ip_info; esp_netif_ip_info_t *ip_info_old = esp_netif->ip_info_old; if ( !ip4_addr_cmp(ip_2_ip4(&netif->ip_addr), IP4_ADDR_ANY4) ) { //check whether IP is changed (or if we're an PPP interface) if ( (!ip4_addr_cmp(ip_2_ip4(&netif->ip_addr), (&ip_info->ip)) || !ip4_addr_cmp(ip_2_ip4(&netif->netmask), (&ip_info->netmask)) || !ip4_addr_cmp(ip_2_ip4(&netif->gw), (&ip_info->gw))) // post IP event for PPP interfaces even if IP hasn't changed || (_IS_NETIF_ANY_POINT2POINT_TYPE(esp_netif))) { ip_event_got_ip_t evt = { .esp_netif = esp_netif, .ip_changed = false, }; ip_event_t evt_id = esp_netif_get_event_id(esp_netif, ESP_NETIF_IP_EVENT_GOT_IP); int ret; ip4_addr_set(&ip_info->ip, ip_2_ip4(&netif->ip_addr)); ip4_addr_set(&ip_info->netmask, ip_2_ip4(&netif->netmask)); ip4_addr_set(&ip_info->gw, ip_2_ip4(&netif->gw)); //notify event if (memcmp(ip_info, ip_info_old, sizeof(esp_netif_ip_info_t))) { evt.ip_changed = true; } memcpy(&evt.ip_info, ip_info, sizeof(esp_netif_ip_info_t)); memcpy(ip_info_old, ip_info, sizeof(esp_netif_ip_info_t)); ESP_LOGD(TAG, "if%p ip changed=%d", esp_netif, evt.ip_changed); ret = esp_event_post(IP_EVENT, evt_id, &evt, sizeof(evt), 0); if (ESP_OK != ret) { ESP_LOGE(TAG, "dhcpc cb: failed to post got ip event (%x)", ret); } #ifdef CONFIG_LWIP_DHCP_RESTORE_LAST_IP dhcp_ip_addr_store(netif); #endif /* CONFIG_LWIP_DHCP_RESTORE_LAST_IP */ } else { ESP_LOGD(TAG, "if%p ip unchanged", esp_netif); } } else { if (!ip4_addr_cmp(&ip_info->ip, IP4_ADDR_ANY4)) { esp_netif_start_ip_lost_timer(esp_netif); } } } static void esp_netif_ip_lost_timer(void *arg) { esp_netif_t *esp_netif = esp_netif_is_active(arg); if (esp_netif == NULL) { ESP_LOGD(TAG, "%s esp_netif=%p not active any more", __func__, arg); return; } ESP_LOGD(TAG, "%s esp_netif:%p", __func__, esp_netif); esp_netif->timer_running = false; struct netif *netif = esp_netif->lwip_netif; if ( (!netif) || (netif && ip4_addr_cmp(ip_2_ip4(&netif->ip_addr), IP4_ADDR_ANY4))) { ip_event_got_ip_t evt = { .esp_netif = esp_netif, }; int ret; ESP_LOGD(TAG, "if%p ip lost tmr: raise ip lost event", esp_netif); memset(esp_netif->ip_info_old, 0, sizeof(esp_netif_ip_info_t)); if (esp_netif->lost_ip_event) { ret = esp_event_post(IP_EVENT, esp_netif->lost_ip_event, &evt, sizeof(evt), 0); if (ESP_OK != ret) { ESP_LOGE(TAG, "ip lost timer: failed to post lost ip event (%x)", ret); } } } else { ESP_LOGD(TAG, "if%p ip lost tmr: no need raise ip lost event", esp_netif); } } static esp_err_t esp_netif_start_ip_lost_timer(esp_netif_t *esp_netif) { esp_netif_ip_info_t *ip_info_old = esp_netif->ip_info; struct netif *netif = esp_netif->lwip_netif; ESP_LOGD(TAG, "%s esp_netif:%p", __func__, esp_netif); if (esp_netif->timer_running) { ESP_LOGD(TAG, "if%p start ip lost tmr: already started", esp_netif); return ESP_OK; } if ( netif && (CONFIG_ESP_NETIF_IP_LOST_TIMER_INTERVAL > 0) && !ip4_addr_isany_val(ip_info_old->ip)) { esp_netif->timer_running = true; sys_timeout(CONFIG_ESP_NETIF_IP_LOST_TIMER_INTERVAL * 1000, esp_netif_ip_lost_timer, (void *)esp_netif); ESP_LOGD(TAG, "if%p start ip lost tmr: interval=%d", esp_netif, CONFIG_ESP_NETIF_IP_LOST_TIMER_INTERVAL); return ESP_OK; } ESP_LOGD(TAG, "if%p start ip lost tmr: no need start because netif=%p interval=%d ip=%x", esp_netif, netif, CONFIG_ESP_NETIF_IP_LOST_TIMER_INTERVAL, ip_info_old->ip.addr); return ESP_OK; } static esp_err_t esp_netif_dhcpc_stop_api(esp_netif_api_msg_t *msg) { esp_netif_t *esp_netif = msg->esp_netif; ESP_LOGD(TAG, "%s esp_netif:%p", __func__, esp_netif); if (esp_netif == NULL) { ESP_LOGE(TAG, "dhcp client stop called with NULL api"); return ESP_ERR_ESP_NETIF_INVALID_PARAMS; } if (esp_netif->dhcpc_status == ESP_NETIF_DHCP_STARTED) { struct netif *p_netif = esp_netif->lwip_netif; if (p_netif != NULL) { dhcp_stop(p_netif); esp_netif_reset_ip_info(esp_netif); esp_netif_start_ip_lost_timer(esp_netif); } else { ESP_LOGD(TAG, "dhcp client if not ready"); return ESP_ERR_ESP_NETIF_IF_NOT_READY; } } else if (esp_netif->dhcpc_status == ESP_NETIF_DHCP_STOPPED) { ESP_LOGD(TAG, "dhcp client already stoped"); return ESP_ERR_ESP_NETIF_DHCP_ALREADY_STOPPED; } ESP_LOGD(TAG, "dhcp client stop successfully"); esp_netif->dhcpc_status = ESP_NETIF_DHCP_STOPPED; #ifdef CONFIG_LWIP_DHCP_RESTORE_LAST_IP dhcp_ip_addr_erase(esp_netif->lwip_netif); #endif /* CONFIG_LWIP_DHCP_RESTORE_LAST_IP */ return ESP_OK; } esp_err_t esp_netif_dhcpc_stop(esp_netif_t *esp_netif) _RUN_IN_LWIP_TASK_IF_SUPPORTED(esp_netif_dhcpc_stop_api, esp_netif, NULL) static esp_err_t esp_netif_dhcpc_start_api(esp_netif_api_msg_t *msg) { esp_netif_t *esp_netif = msg->esp_netif; ESP_LOGD(TAG, "%s esp_netif:%p", __func__, esp_netif); if (!esp_netif) { return ESP_ERR_INVALID_ARG; } if (esp_netif->dhcpc_status == ESP_NETIF_DHCP_STARTED) { ESP_LOGD(TAG, "dhcp client already started"); return ESP_ERR_ESP_NETIF_DHCP_ALREADY_STARTED; } struct netif *p_netif = esp_netif->lwip_netif; esp_netif_reset_ip_info(esp_netif); #if LWIP_DNS dns_clear_servers(true); #endif if (p_netif != NULL) { if (netif_is_up(p_netif)) { ip_addr_set_zero(&p_netif->ip_addr); ip_addr_set_zero(&p_netif->netmask); ip_addr_set_zero(&p_netif->gw); esp_netif_start_ip_lost_timer(esp_netif); } else { ESP_LOGD(TAG, "dhcp client re init"); esp_netif->dhcpc_status = ESP_NETIF_DHCP_INIT; return ESP_OK; } ESP_LOGD(TAG, "starting dhcp client"); if (dhcp_start(p_netif) != ERR_OK) { ESP_LOGE(TAG, "dhcp client start failed"); return ESP_ERR_ESP_NETIF_DHCPC_START_FAILED; } esp_netif->dhcpc_status = ESP_NETIF_DHCP_STARTED; return ESP_OK; } else { ESP_LOGD(TAG, "dhcp client re init"); esp_netif->dhcpc_status = ESP_NETIF_DHCP_INIT; return ESP_OK; } } esp_err_t esp_netif_dhcpc_start(esp_netif_t *esp_netif) _RUN_IN_LWIP_TASK_IF_SUPPORTED(esp_netif_dhcpc_start_api, esp_netif, NULL) #if ESP_DHCPS esp_err_t esp_netif_dhcps_get_status(esp_netif_t *esp_netif, esp_netif_dhcp_status_t *status) { if (!esp_netif || (esp_netif->flags & ESP_NETIF_DHCP_CLIENT) || _IS_NETIF_ANY_POINT2POINT_TYPE(esp_netif)) { return ESP_ERR_INVALID_ARG; } *status = esp_netif->dhcps_status; return ESP_OK; } #endif esp_err_t esp_netif_dhcpc_get_status(esp_netif_t *esp_netif, esp_netif_dhcp_status_t *status) { if (!esp_netif || (esp_netif->flags & ESP_NETIF_DHCP_SERVER) || _IS_NETIF_ANY_POINT2POINT_TYPE(esp_netif)) { return ESP_ERR_INVALID_ARG; } *status = esp_netif->dhcpc_status; return ESP_OK; } #if ESP_DHCPS static esp_err_t esp_netif_dhcps_start_api(esp_netif_api_msg_t *msg) { esp_netif_t *esp_netif = msg->esp_netif; ESP_LOGD(TAG, "%s esp_netif:%p", __func__, esp_netif); if (!esp_netif) { return ESP_ERR_INVALID_ARG; } if (esp_netif->dhcps_status == ESP_NETIF_DHCP_STARTED) { ESP_LOGD(TAG, "dhcp server already started"); return ESP_ERR_ESP_NETIF_DHCP_ALREADY_STARTED; } struct netif *p_netif = esp_netif->lwip_netif; if (p_netif != NULL && netif_is_up(p_netif)) { esp_netif_ip_info_t *default_ip = esp_netif->ip_info; ip4_addr_t lwip_ip; ip4_addr_t lwip_netmask; memcpy(&lwip_ip, &default_ip->ip, sizeof(struct ip4_addr)); memcpy(&lwip_netmask, &default_ip->netmask, sizeof(struct ip4_addr)); dhcps_set_new_lease_cb(esp_netif->dhcps, esp_netif_dhcps_cb, esp_netif); dhcps_set_option_info(esp_netif->dhcps, SUBNET_MASK, (void*)&lwip_netmask, sizeof(lwip_netmask)); if (dhcps_start(esp_netif->dhcps, p_netif, lwip_ip) != ERR_OK) { ESP_LOGE(TAG, "DHCP server cannot be started"); esp_netif->dhcps_status = ESP_NETIF_DHCP_INIT; return ESP_ERR_ESP_NETIF_DHCPS_START_FAILED; } esp_netif->dhcps_status = ESP_NETIF_DHCP_STARTED; ESP_LOGD(TAG, "DHCP server started successfully"); return ESP_OK; } else { ESP_LOGD(TAG, "dhcp server re init"); esp_netif->dhcps_status = ESP_NETIF_DHCP_INIT; return ESP_OK; } } esp_err_t esp_netif_dhcps_start(esp_netif_t *esp_netif) _RUN_IN_LWIP_TASK_IF_SUPPORTED(esp_netif_dhcps_start_api, esp_netif, NULL) static esp_err_t esp_netif_dhcps_stop_api(esp_netif_api_msg_t *msg) { esp_netif_t *esp_netif = msg->esp_netif; ESP_LOGD(TAG, "%s esp_netif:%p", __func__, esp_netif); if (!esp_netif) { return ESP_ERR_INVALID_ARG; } struct netif *p_netif = esp_netif->lwip_netif; if (esp_netif->dhcps_status == ESP_NETIF_DHCP_STARTED) { if (dhcps_stop(esp_netif->dhcps, p_netif) != ERR_OK) { ESP_LOGD(TAG, "dhcp server if not ready"); return ESP_ERR_ESP_NETIF_IF_NOT_READY; } } else if (esp_netif->dhcps_status == ESP_NETIF_DHCP_STOPPED) { ESP_LOGD(TAG, "dhcp server already stoped"); return ESP_ERR_ESP_NETIF_DHCP_ALREADY_STOPPED; } ESP_LOGD(TAG, "dhcp server stop successfully"); esp_netif->dhcps_status = ESP_NETIF_DHCP_STOPPED; return ESP_OK; } esp_err_t esp_netif_dhcps_stop(esp_netif_t *esp_netif) _RUN_IN_LWIP_TASK_IF_SUPPORTED(esp_netif_dhcps_stop_api, esp_netif, NULL) #endif static esp_err_t esp_netif_set_hostname_api(esp_netif_api_msg_t *msg) { esp_netif_t *esp_netif = msg->esp_netif; const char *hostname = msg->data; ESP_LOGD(TAG, "%s esp_netif:%p hostname %s", __func__, esp_netif, hostname); if (!esp_netif) { return ESP_ERR_INVALID_ARG; } #if LWIP_NETIF_HOSTNAME struct netif *p_netif = esp_netif->lwip_netif; if (strlen(hostname) > ESP_NETIF_HOSTNAME_MAX_SIZE) { return ESP_ERR_ESP_NETIF_INVALID_PARAMS; } if (p_netif != NULL) { if (esp_netif->hostname) { free(esp_netif->hostname); } esp_netif->hostname = strdup(hostname); if (esp_netif->hostname == NULL) { p_netif->hostname = CONFIG_LWIP_LOCAL_HOSTNAME; return ESP_ERR_NO_MEM; } p_netif->hostname = esp_netif->hostname; return ESP_OK; } else { return ESP_ERR_ESP_NETIF_IF_NOT_READY; } #else return ESP_ERR_ESP_NETIF_IF_NOT_READY; #endif } esp_err_t esp_netif_set_hostname(esp_netif_t *esp_netif, const char *hostname) _RUN_IN_LWIP_TASK_IF_SUPPORTED(esp_netif_set_hostname_api, esp_netif, hostname) esp_err_t esp_netif_get_hostname(esp_netif_t *esp_netif, const char **hostname) { ESP_LOGD(TAG, "%s esp_netif:%p", __func__, esp_netif); if (!esp_netif || _IS_NETIF_ANY_POINT2POINT_TYPE(esp_netif)) { return ESP_ERR_INVALID_ARG; } #if LWIP_NETIF_HOSTNAME struct netif *p_netif = esp_netif->lwip_netif; if (p_netif != NULL && p_netif->hostname != NULL) { *hostname = p_netif->hostname; return ESP_OK; } else { return ESP_ERR_ESP_NETIF_IF_NOT_READY; } #else return ESP_ERR_ESP_NETIF_IF_NOT_READY; #endif } static esp_err_t esp_netif_up_api(esp_netif_api_msg_t *msg) { esp_netif_t *esp_netif = msg->esp_netif; ESP_LOGD(TAG, "%s esp_netif:%p", __func__, esp_netif); if (!esp_netif) { return ESP_ERR_INVALID_STATE; } struct netif *lwip_netif = esp_netif->lwip_netif; /* use last obtained ip, or static ip */ netif_set_addr(lwip_netif, (ip4_addr_t*)&esp_netif->ip_info->ip, (ip4_addr_t*)&esp_netif->ip_info->netmask, (ip4_addr_t*)&esp_netif->ip_info->gw); netif_set_up(lwip_netif); netif_set_link_up(lwip_netif); esp_netif_update_default_netif(esp_netif, ESP_NETIF_STARTED); return ESP_OK; } esp_err_t esp_netif_up(esp_netif_t *esp_netif) _RUN_IN_LWIP_TASK(esp_netif_up_api, esp_netif, NULL) static esp_err_t esp_netif_down_api(esp_netif_api_msg_t *msg) { esp_netif_t *esp_netif = msg->esp_netif; ESP_LOGD(TAG, "%s esp_netif:%p", __func__, esp_netif); if (!esp_netif) { return ESP_ERR_INVALID_STATE; } struct netif *lwip_netif = esp_netif->lwip_netif; if (esp_netif->flags & ESP_NETIF_DHCP_CLIENT && esp_netif->dhcpc_status == ESP_NETIF_DHCP_STARTED) { dhcp_stop(esp_netif->lwip_netif); esp_netif->dhcpc_status = ESP_NETIF_DHCP_INIT; esp_netif_reset_ip_info(esp_netif); } #if CONFIG_LWIP_IPV6 for(int8_t i = 0 ;i < LWIP_IPV6_NUM_ADDRESSES ;i++) { netif_ip6_addr_set(lwip_netif, i, IP6_ADDR_ANY6); netif_ip6_addr_set_valid_life(lwip_netif, i, 0); netif_ip6_addr_set_pref_life(lwip_netif, i, 0); netif_ip6_addr_set_state(lwip_netif, i, IP6_ADDR_INVALID); } #endif netif_set_addr(lwip_netif, IP4_ADDR_ANY4, IP4_ADDR_ANY4, IP4_ADDR_ANY4); netif_set_down(lwip_netif); netif_set_link_down(lwip_netif); if (esp_netif->flags & ESP_NETIF_DHCP_CLIENT) { esp_netif_start_ip_lost_timer(esp_netif); } esp_netif_update_default_netif(esp_netif, ESP_NETIF_STOPPED); return ESP_OK; } esp_err_t esp_netif_down(esp_netif_t *esp_netif) _RUN_IN_LWIP_TASK(esp_netif_down_api, esp_netif, NULL) bool esp_netif_is_netif_up(esp_netif_t *esp_netif) { ESP_LOGV(TAG, "%s esp_netif:%p", __func__, esp_netif); if (esp_netif != NULL && esp_netif->lwip_netif != NULL) { if (_IS_NETIF_ANY_POINT2POINT_TYPE(esp_netif)) { // ppp implementation uses netif_set_link_up/down to update link state return netif_is_link_up(esp_netif->lwip_netif); } // esp-netif handlers and drivers take care to set_netif_up/down on link state update return netif_is_up(esp_netif->lwip_netif); } else { return false; } } esp_err_t esp_netif_get_old_ip_info(esp_netif_t *esp_netif, esp_netif_ip_info_t *ip_info) { ESP_LOGD(TAG, "%s esp_netif:%p", __func__, esp_netif); if (esp_netif == NULL || ip_info == NULL) { return ESP_ERR_INVALID_ARG; } memcpy(ip_info, esp_netif->ip_info_old, sizeof(esp_netif_ip_info_t)); return ESP_OK; } esp_err_t esp_netif_get_ip_info(esp_netif_t *esp_netif, esp_netif_ip_info_t *ip_info) { ESP_LOGD(TAG, "%s esp_netif:%p", __func__, esp_netif); if (esp_netif == NULL || ip_info == NULL) { return ESP_ERR_INVALID_ARG; } struct netif *p_netif = esp_netif->lwip_netif; if (p_netif != NULL && netif_is_up(p_netif)) { ip4_addr_set(&ip_info->ip, ip_2_ip4(&p_netif->ip_addr)); ip4_addr_set(&ip_info->netmask, ip_2_ip4(&p_netif->netmask)); ip4_addr_set(&ip_info->gw, ip_2_ip4(&p_netif->gw)); return ESP_OK; } memcpy(ip_info, esp_netif->ip_info, sizeof(esp_netif_ip_info_t)); return ESP_OK; } bool esp_netif_is_valid_static_ip(esp_netif_ip_info_t *ip_info) { if (!(ip4_addr_isany_val(ip_info->ip) || ip4_addr_isany_val(ip_info->netmask))) { // let's assume valid ip_info is when none of ip and netmask is 'any' address (zeros) return true; } return false; } static esp_err_t esp_netif_set_ip_old_info_api(esp_netif_api_msg_t *msg) { esp_netif_t *esp_netif = msg->esp_netif; const esp_netif_ip_info_t *ip_info = msg->data; ESP_LOGD(TAG, "%s esp_netif:%p", __func__, esp_netif); if (esp_netif == NULL || ip_info == NULL) { return ESP_ERR_INVALID_STATE; } memcpy(msg->esp_netif->ip_info_old, msg->data, sizeof(esp_netif_ip_info_t)); return ESP_OK; } esp_err_t esp_netif_set_old_ip_info(esp_netif_t *esp_netif, const esp_netif_ip_info_t *ip_info) _RUN_IN_LWIP_TASK_IF_SUPPORTED(esp_netif_set_ip_old_info_api, esp_netif, ip_info) static esp_err_t esp_netif_set_ip_info_api(esp_netif_api_msg_t *msg) { esp_netif_t *esp_netif = msg->esp_netif; const esp_netif_ip_info_t *ip_info = msg->data; ESP_LOGD(TAG, "%s esp_netif:%p", __func__, esp_netif); if (esp_netif == NULL || ip_info == NULL) { return ESP_ERR_INVALID_STATE; } if (esp_netif->flags & ESP_NETIF_DHCP_SERVER) { if (esp_netif->dhcps_status != ESP_NETIF_DHCP_STOPPED) { return ESP_ERR_ESP_NETIF_DHCP_NOT_STOPPED; } } else if (esp_netif->flags & ESP_NETIF_DHCP_CLIENT) { if (esp_netif->dhcpc_status != ESP_NETIF_DHCP_STOPPED) { return ESP_ERR_ESP_NETIF_DHCP_NOT_STOPPED; } #if LWIP_DNS /* don't build if not configured for use in lwipopts.h */ dns_clear_servers(true); #endif } ip4_addr_copy(esp_netif->ip_info->ip, ip_info->ip); ip4_addr_copy(esp_netif->ip_info->gw, ip_info->gw); ip4_addr_copy(esp_netif->ip_info->netmask, ip_info->netmask); struct netif *p_netif = esp_netif->lwip_netif; if (p_netif != NULL && netif_is_up(p_netif)) { netif_set_addr(p_netif, (ip4_addr_t*)&ip_info->ip, (ip4_addr_t*)&ip_info->netmask, (ip4_addr_t*)&ip_info->gw); if (ESP_NETIF_FLAG_EVENT_IP_MODIFIED & esp_netif->flags) { if (!(ip4_addr_isany_val(ip_info->ip) || ip4_addr_isany_val(ip_info->netmask) || ip4_addr_isany_val(ip_info->gw))) { ip_event_t evt_id = esp_netif->get_ip_event; ip_event_got_ip_t evt = { .esp_netif = esp_netif, .ip_changed = false}; int ret; if (memcmp(ip_info, esp_netif->ip_info_old, sizeof(esp_netif_ip_info_t))) { evt.ip_changed = true; } memcpy(&evt.ip_info, ip_info, sizeof(esp_netif_ip_info_t)); memcpy(esp_netif->ip_info_old, ip_info, sizeof(esp_netif_ip_info_t)); ret = esp_event_post(IP_EVENT, evt_id, &evt, sizeof(evt), 0); if (ESP_OK != ret) { ESP_LOGE(TAG, "set ip info: failed to post got ip event (%x)", ret); } ESP_LOGD(TAG, "if%p netif set static ip: ip changed=%d", esp_netif, evt.ip_changed); } } } return ESP_OK; } esp_err_t esp_netif_set_ip_info(esp_netif_t *esp_netif, const esp_netif_ip_info_t *ip_info) _RUN_IN_LWIP_TASK_IF_SUPPORTED(esp_netif_set_ip_info_api, esp_netif, ip_info) struct array_mac_ip_t { int num; esp_netif_pair_mac_ip_t *mac_ip_pair; }; #if CONFIG_LWIP_DHCPS static esp_err_t esp_netif_dhcps_get_clients_by_mac_api(esp_netif_api_msg_t *msg) { esp_netif_t *netif = msg->esp_netif; struct array_mac_ip_t *mac_ip_list = msg->data; for (int i = 0; i < mac_ip_list->num; i++) { dhcp_search_ip_on_mac(netif->dhcps, mac_ip_list->mac_ip_pair[i].mac, (ip4_addr_t*)&mac_ip_list->mac_ip_pair[i].ip); } return ESP_OK; } #endif // CONFIG_LWIP_DHCPS esp_err_t esp_netif_dhcps_get_clients_by_mac(esp_netif_t *esp_netif, int num, esp_netif_pair_mac_ip_t *mac_ip_pair) { #if CONFIG_LWIP_DHCPS if (esp_netif == NULL || esp_netif->dhcps == NULL || num < 0 || mac_ip_pair == NULL) { return ESP_ERR_ESP_NETIF_INVALID_PARAMS; } struct array_mac_ip_t array_mac_ip = { num, mac_ip_pair }; return esp_netif_lwip_ipc_call(esp_netif_dhcps_get_clients_by_mac_api, esp_netif, (void *)&array_mac_ip); #else return ESP_ERR_NOT_SUPPORTED; #endif // CONFIG_LWIP_DHCPS } static esp_err_t esp_netif_set_dns_info_api(esp_netif_api_msg_t *msg) { esp_netif_t *esp_netif = msg->esp_netif; esp_netif_dns_param_t *dns_param = msg->data; esp_netif_dns_type_t type = dns_param->dns_type; esp_netif_dns_info_t *dns = dns_param->dns_info; ESP_LOGD(TAG, "esp_netif_set_dns_info: if=%p type=%d dns=%x", esp_netif, type, dns->ip.u_addr.ip4.addr); ip_addr_t *lwip_ip = (ip_addr_t*)&dns->ip; #if CONFIG_LWIP_IPV6 && LWIP_IPV4 if (!IP_IS_V4(lwip_ip) && !IP_IS_V6(lwip_ip)) { lwip_ip->type = IPADDR_TYPE_V4; } #endif if (esp_netif->flags & ESP_NETIF_DHCP_SERVER) { #if ESP_DHCPS // if DHCP server configured to set DNS in dhcps API if (type != ESP_NETIF_DNS_MAIN) { ESP_LOGD(TAG, "set dns invalid type"); return ESP_ERR_ESP_NETIF_INVALID_PARAMS; } else { dhcps_dns_setserver(esp_netif->dhcps, lwip_ip); } #else LOG_NETIF_DISABLED_AND_DO("DHCP Server", return ESP_ERR_NOT_SUPPORTED); #endif } else { dns_setserver(type, lwip_ip); } return ESP_OK; } esp_err_t esp_netif_set_dns_info(esp_netif_t *esp_netif, esp_netif_dns_type_t type, esp_netif_dns_info_t *dns) { if (esp_netif == NULL) { return ESP_ERR_ESP_NETIF_INVALID_PARAMS; } if (dns == NULL) { ESP_LOGD(TAG, "set dns null dns"); return ESP_ERR_ESP_NETIF_INVALID_PARAMS; } if (ip4_addr_isany_val(dns->ip.u_addr.ip4)) { ESP_LOGD(TAG, "set dns invalid dns"); return ESP_ERR_ESP_NETIF_INVALID_PARAMS; } esp_netif_dns_param_t dns_param = { .dns_type = type, .dns_info = dns }; return esp_netif_lwip_ipc_call(esp_netif_set_dns_info_api, esp_netif, (void *)&dns_param); } static esp_err_t esp_netif_get_dns_info_api(esp_netif_api_msg_t *msg) { esp_netif_t *esp_netif = msg->esp_netif; esp_netif_dns_param_t *dns_param = msg->data; esp_netif_dns_type_t type = dns_param->dns_type; esp_netif_dns_info_t *dns = dns_param->dns_info; ESP_LOGD(TAG, "esp_netif_get_dns_info: esp_netif=%p type=%d", esp_netif, type); if (esp_netif->flags & ESP_NETIF_DHCP_SERVER) { #if ESP_DHCPS ip4_addr_t dns_ip; dhcps_dns_getserver(esp_netif->dhcps, &dns_ip); memcpy(&dns->ip.u_addr.ip4, &dns_ip, sizeof(ip4_addr_t)); dns->ip.type = ESP_IPADDR_TYPE_V4; #else LOG_NETIF_DISABLED_AND_DO("DHCP Server", return ESP_ERR_NOT_SUPPORTED); #endif } else { const ip_addr_t* dns_ip = NULL; dns_ip = dns_getserver(type); if(dns_ip != NULL) { memcpy(&dns->ip, dns_ip, sizeof(ip_addr_t)); } } return ESP_OK; } esp_err_t esp_netif_get_dns_info(esp_netif_t *esp_netif, esp_netif_dns_type_t type, esp_netif_dns_info_t *dns) { if (esp_netif == NULL) { return ESP_ERR_ESP_NETIF_INVALID_PARAMS; } if (dns == NULL) { ESP_LOGE(TAG, "%s: dns_info cannot be NULL", __func__); return ESP_ERR_ESP_NETIF_INVALID_PARAMS; } esp_netif_dns_param_t dns_param = { .dns_type = type, .dns_info = dns }; return esp_netif_lwip_ipc_call(esp_netif_get_dns_info_api, esp_netif, (void *)&dns_param); } #if CONFIG_LWIP_IPV6 esp_ip6_addr_type_t esp_netif_ip6_get_addr_type(esp_ip6_addr_t* ip6_addr) { ip6_addr_t* lwip_ip6_info = (ip6_addr_t*)ip6_addr; if (ip6_addr_isglobal(lwip_ip6_info)) { return ESP_IP6_ADDR_IS_GLOBAL; } else if (ip6_addr_islinklocal(lwip_ip6_info)) { return ESP_IP6_ADDR_IS_LINK_LOCAL; } else if (ip6_addr_issitelocal(lwip_ip6_info)) { return ESP_IP6_ADDR_IS_SITE_LOCAL; } else if (ip6_addr_isuniquelocal(lwip_ip6_info)) { return ESP_IP6_ADDR_IS_UNIQUE_LOCAL; } else if (ip6_addr_isipv4mappedipv6(lwip_ip6_info)) { return ESP_IP6_ADDR_IS_IPV4_MAPPED_IPV6; } return ESP_IP6_ADDR_IS_UNKNOWN; } static void esp_netif_internal_nd6_cb(struct netif *netif, uint8_t ip_index) { esp_netif_t *esp_netif; ESP_LOGD(TAG, "%s lwip-netif:%p", __func__, netif); if (netif == NULL || (esp_netif = lwip_get_esp_netif(netif)) == NULL) { // internal pointer hasn't been configured yet (probably in the interface init_fn()) return; } esp_netif_ip6_info_t ip6_info; ip6_addr_t lwip_ip6_info; ip_event_got_ip6_t evt = { .esp_netif = esp_netif, .ip_index = ip_index }; ip6_addr_set(&lwip_ip6_info, ip_2_ip6(&netif->ip6_addr[ip_index])); #if LWIP_IPV6_SCOPES memcpy(&ip6_info.ip, &lwip_ip6_info, sizeof(esp_ip6_addr_t)); #else memcpy(&ip6_info.ip, &lwip_ip6_info, sizeof(ip6_addr_t)); ip6_info.ip.zone = 0; // zero out zone, as not used in lwip #endif /* LWIP_IPV6_SCOPES */ memcpy(&evt.ip6_info, &ip6_info, sizeof(esp_netif_ip6_info_t)); int ret = esp_event_post(IP_EVENT, IP_EVENT_GOT_IP6, &evt, sizeof(evt), 0); if (ESP_OK != ret) { ESP_LOGE(TAG, "nd6 cb: failed to post IP_EVENT_GOT_IP6 (%x)", ret); } } static esp_err_t esp_netif_create_ip6_linklocal_api(esp_netif_api_msg_t *msg) { esp_netif_t *esp_netif = msg->esp_netif; ESP_LOGV(TAG, "%s esp-netif:%p", __func__, esp_netif); struct netif *p_netif = esp_netif->lwip_netif; if (p_netif != NULL && netif_is_up(p_netif)) { netif_create_ip6_linklocal_address(p_netif, 1); return ESP_OK; } else { return ESP_FAIL; } } esp_err_t esp_netif_create_ip6_linklocal(esp_netif_t *esp_netif) _RUN_IN_LWIP_TASK_IF_SUPPORTED(esp_netif_create_ip6_linklocal_api, esp_netif, NULL) esp_err_t esp_netif_get_ip6_linklocal(esp_netif_t *esp_netif, esp_ip6_addr_t *if_ip6) { ESP_LOGV(TAG, "%s esp-netif:%p", __func__, esp_netif); if (esp_netif == NULL || if_ip6 == NULL || _IS_NETIF_ANY_POINT2POINT_TYPE(esp_netif)) { return ESP_ERR_ESP_NETIF_INVALID_PARAMS; } struct netif *p_netif = esp_netif->lwip_netif; if (p_netif != NULL && netif_is_up(p_netif) && ip6_addr_ispreferred(netif_ip6_addr_state(p_netif, 0))) { memcpy(if_ip6, &p_netif->ip6_addr[0], sizeof(ip6_addr_t)); } else { return ESP_FAIL; } return ESP_OK; } esp_err_t esp_netif_get_ip6_global(esp_netif_t *esp_netif, esp_ip6_addr_t *if_ip6) { ESP_LOGV(TAG, "%s esp-netif:%p", __func__, esp_netif); if (esp_netif == NULL || if_ip6 == NULL) { return ESP_ERR_ESP_NETIF_INVALID_PARAMS; } int i; struct netif *p_netif = esp_netif->lwip_netif; if (p_netif != NULL && netif_is_up(p_netif)) { for (i = 1; i < LWIP_IPV6_NUM_ADDRESSES; i++) { if (ip6_addr_ispreferred(netif_ip6_addr_state(p_netif, i)) && ip6_addr_isglobal(netif_ip6_addr(p_netif, i))) { memcpy(if_ip6, &p_netif->ip6_addr[i], sizeof(ip6_addr_t)); return ESP_OK; } } } return ESP_FAIL; } int esp_netif_get_all_ip6(esp_netif_t *esp_netif, esp_ip6_addr_t if_ip6[]) { ESP_LOGV(TAG, "%s esp-netif:%p", __func__, esp_netif); if (esp_netif == NULL || if_ip6 == NULL) { return 0; } int addr_count = 0; struct netif *p_netif = esp_netif->lwip_netif; if (p_netif != NULL && netif_is_up(p_netif)) { for (int i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) { if (!ip_addr_cmp(&p_netif->ip6_addr[i], IP6_ADDR_ANY)) { memcpy(&if_ip6[addr_count++], &p_netif->ip6_addr[i], sizeof(ip6_addr_t)); } } } return addr_count; } #endif esp_netif_flags_t esp_netif_get_flags(esp_netif_t *esp_netif) { return esp_netif->flags; } const char *esp_netif_get_ifkey(esp_netif_t *esp_netif) { return esp_netif->if_key; } const char *esp_netif_get_desc(esp_netif_t *esp_netif) { return esp_netif->if_desc; } int esp_netif_get_route_prio(esp_netif_t *esp_netif) { if (esp_netif == NULL) { return -1; } return esp_netif->route_prio; } int32_t esp_netif_get_event_id(esp_netif_t *esp_netif, esp_netif_ip_event_type_t event_type) { switch(event_type) { case ESP_NETIF_IP_EVENT_GOT_IP: return esp_netif->get_ip_event; case ESP_NETIF_IP_EVENT_LOST_IP: return esp_netif->lost_ip_event; default: return -1; } } struct dhcp_params { esp_netif_dhcp_option_mode_t op; esp_netif_dhcp_option_id_t id; void *val; uint32_t len; }; #if ESP_DHCPS esp_err_t esp_netif_dhcps_option_api(esp_netif_api_msg_t *msg) { esp_netif_t *esp_netif = msg->esp_netif; struct dhcp_params *opt = msg->data; void *opt_info = dhcps_option_info(esp_netif->dhcps, opt->id, opt->len); esp_netif_dhcp_status_t dhcps_status = esp_netif->dhcps_status; if (opt_info == NULL || opt->val == NULL) { return ESP_ERR_ESP_NETIF_INVALID_PARAMS; } if (opt->op == ESP_NETIF_OP_GET) { if (dhcps_status == ESP_NETIF_DHCP_STOPPED) { return ESP_ERR_ESP_NETIF_DHCP_ALREADY_STOPPED; } switch (opt->id) { case IP_ADDRESS_LEASE_TIME: { *(uint32_t *)opt->val = *(uint32_t *)opt_info; break; } case ESP_NETIF_SUBNET_MASK: case REQUESTED_IP_ADDRESS: { memcpy(opt->val, opt_info, opt->len); break; } case ROUTER_SOLICITATION_ADDRESS: { if ((*(uint8_t *)opt_info) & OFFER_ROUTER) { *(uint8_t *)opt->val = 1; } else { *(uint8_t *)opt->val = 0; } break; } case DOMAIN_NAME_SERVER: { if ((*(uint8_t *)opt_info) & OFFER_DNS) { *(uint8_t *)opt->val = 1; } else { *(uint8_t *)opt->val = 0; } break; } default: break; } } else if (opt->op == ESP_NETIF_OP_SET) { if (dhcps_status == ESP_NETIF_DHCP_STARTED) { return ESP_ERR_ESP_NETIF_DHCP_ALREADY_STARTED; } switch (opt->id) { case IP_ADDRESS_LEASE_TIME: { if (*(uint32_t *)opt->val != 0) { *(uint32_t *)opt_info = *(uint32_t *)opt->val; } else { *(uint32_t *)opt_info = DHCPS_LEASE_TIME_DEF; } break; } case ESP_NETIF_SUBNET_MASK: { memcpy(opt_info, opt->val, opt->len); break; } case REQUESTED_IP_ADDRESS: { esp_netif_ip_info_t info; uint32_t softap_ip = 0; uint32_t start_ip = 0; uint32_t end_ip = 0; dhcps_lease_t *poll = opt->val; if (poll->enable) { memset(&info, 0x00, sizeof(esp_netif_ip_info_t)); esp_netif_get_ip_info(esp_netif, &info); softap_ip = htonl(info.ip.addr); start_ip = htonl(poll->start_ip.addr); end_ip = htonl(poll->end_ip.addr); /*config ip information can't contain local ip*/ if ((start_ip <= softap_ip) && (softap_ip <= end_ip)) { return ESP_ERR_ESP_NETIF_INVALID_PARAMS; } /*config ip information must be in the same segment as the local ip*/ softap_ip >>= 8; if ((start_ip >> 8 != softap_ip) || (end_ip >> 8 != softap_ip)) { return ESP_ERR_ESP_NETIF_INVALID_PARAMS; } if (end_ip - start_ip > DHCPS_MAX_LEASE) { return ESP_ERR_ESP_NETIF_INVALID_PARAMS; } } memcpy(opt_info, opt->val, opt->len); break; } case ROUTER_SOLICITATION_ADDRESS: { if (*(uint8_t *)opt->val) { *(uint8_t *)opt_info |= OFFER_ROUTER; } else { *(uint8_t *)opt_info &= ((~OFFER_ROUTER) & 0xFF); } break; } case DOMAIN_NAME_SERVER: { if (*(uint8_t *)opt->val) { *(uint8_t *)opt_info |= OFFER_DNS; } else { *(uint8_t *)opt_info &= ((~OFFER_DNS) & 0xFF); } break; } default: break; } dhcps_set_option_info(esp_netif->dhcps, opt->id, opt_info, opt->len); } else { return ESP_ERR_ESP_NETIF_INVALID_PARAMS; } return ESP_OK; } esp_err_t esp_netif_dhcps_option(esp_netif_t *esp_netif, esp_netif_dhcp_option_mode_t opt_op, esp_netif_dhcp_option_id_t opt_id, void *opt_val, uint32_t opt_len) { if (esp_netif == NULL || esp_netif->dhcps == NULL) { return ESP_ERR_ESP_NETIF_IF_NOT_READY; } struct dhcp_params opts = { .op = opt_op, .id = opt_id, .len = opt_len, .val = opt_val }; return esp_netif_lwip_ipc_call(esp_netif_dhcps_option_api, esp_netif, &opts); } #endif esp_err_t esp_netif_dhcpc_option_api(esp_netif_api_msg_t *msg) { esp_netif_t *esp_netif = msg->esp_netif; struct dhcp_params *opt = msg->data; struct dhcp *dhcp = netif_dhcp_data(esp_netif->lwip_netif); if (dhcp == NULL || opt->val == NULL) { return ESP_ERR_ESP_NETIF_INVALID_PARAMS; } if (opt->op == ESP_NETIF_OP_GET) { if (esp_netif->dhcpc_status == ESP_NETIF_DHCP_STOPPED) { return ESP_ERR_ESP_NETIF_DHCP_ALREADY_STOPPED; } switch (opt->id) { case ESP_NETIF_IP_REQUEST_RETRY_TIME: if (opt->len == sizeof(dhcp->tries)) { *(uint8_t *)opt->val = dhcp->tries; } break; #if ESP_DHCP && !ESP_DHCP_DISABLE_VENDOR_CLASS_IDENTIFIER case ESP_NETIF_VENDOR_SPECIFIC_INFO: return dhcp_get_vendor_specific_information(opt->len, opt->val); #endif default: return ESP_ERR_ESP_NETIF_INVALID_PARAMS; } } else if (opt->op == ESP_NETIF_OP_SET) { if (esp_netif->dhcpc_status == ESP_NETIF_DHCP_STARTED) { return ESP_ERR_ESP_NETIF_DHCP_ALREADY_STARTED; } switch (opt->id) { case ESP_NETIF_IP_REQUEST_RETRY_TIME: if (opt->len == sizeof(dhcp->tries)) { dhcp->tries = *(uint8_t *)opt->val; } break; #if ESP_DHCP && !ESP_DHCP_DISABLE_VENDOR_CLASS_IDENTIFIER case ESP_NETIF_VENDOR_CLASS_IDENTIFIER: return dhcp_set_vendor_class_identifier(opt->len, opt->val); #endif default: return ESP_ERR_ESP_NETIF_INVALID_PARAMS; } } else { return ESP_ERR_ESP_NETIF_INVALID_PARAMS; } return ESP_OK; } esp_err_t esp_netif_dhcpc_option(esp_netif_t *esp_netif, esp_netif_dhcp_option_mode_t opt_op, esp_netif_dhcp_option_id_t opt_id, void *opt_val, uint32_t opt_len) { if (esp_netif == NULL || esp_netif->lwip_netif == NULL) { return ESP_ERR_ESP_NETIF_IF_NOT_READY; } struct dhcp_params opts = { .op = opt_op, .id = opt_id, .len = opt_len, .val = opt_val }; return esp_netif_lwip_ipc_call(esp_netif_dhcpc_option_api, esp_netif, &opts); } int esp_netif_get_netif_impl_index(esp_netif_t *esp_netif) { if (esp_netif == NULL || esp_netif->lwip_netif == NULL) { return -1; } return netif_get_index(esp_netif->lwip_netif); } esp_err_t esp_netif_get_netif_impl_name_api(esp_netif_api_msg_t *msg) { struct netif* netif = msg->esp_netif->lwip_netif; netif_index_to_name(netif_get_index(netif), msg->data); return ESP_OK; } esp_err_t esp_netif_get_netif_impl_name(esp_netif_t *esp_netif, char* name) { ESP_LOGD(TAG, "%s esp_netif:%p", __func__, esp_netif); if (esp_netif == NULL || esp_netif->lwip_netif == NULL) { return ESP_ERR_ESP_NETIF_INVALID_PARAMS; } return esp_netif_lwip_ipc_call(esp_netif_get_netif_impl_name_api, esp_netif, name); } #if MIB2_STATS static esp_err_t esp_netif_set_link_speed_api(esp_netif_api_msg_t *msg) { uint32_t speed = *((uint32_t*)msg->data); esp_err_t error = ESP_OK; ESP_LOGD(TAG, "%s esp_netif:%p", __func__, msg->esp_netif); NETIF_INIT_SNMP(msg->esp_netif->lwip_netif, snmp_ifType_ethernet_csmacd, speed); LWIP_UNUSED_ARG(speed); // Maybe unused if SNMP disabled return error; } esp_err_t esp_netif_set_link_speed(esp_netif_t *esp_netif, uint32_t speed) _RUN_IN_LWIP_TASK(esp_netif_set_link_speed_api, esp_netif, &speed) #else esp_err_t esp_netif_set_link_speed(esp_netif_t *esp_netif, uint32_t speed) { // link speed is used only to collect interface related statistics (if MIB2_STATS enabled) return ESP_OK; } #endif /* MIB2_STATS */ #if CONFIG_LWIP_IPV6 static esp_err_t esp_netif_join_ip6_multicast_group_api(esp_netif_api_msg_t *msg) { esp_ip6_addr_t *addr = (esp_ip6_addr_t *)msg->data; esp_err_t error = ESP_OK; ip6_addr_t ip6addr; ESP_LOGD(TAG, "%s esp_netif:%p", __func__, msg->esp_netif); memcpy(ip6addr.addr, addr->addr, sizeof(ip6addr.addr)); #if LWIP_IPV6_SCOPES ip6addr.zone = 0; #endif if (mld6_joingroup_netif(msg->esp_netif->lwip_netif, &ip6addr) != ERR_OK) { error = ESP_ERR_ESP_NETIF_MLD6_FAILED; ESP_LOGE(TAG, "failed to join ip6 multicast group"); } return error; } esp_err_t esp_netif_join_ip6_multicast_group(esp_netif_t *esp_netif, const esp_ip6_addr_t *addr) _RUN_IN_LWIP_TASK(esp_netif_join_ip6_multicast_group_api, esp_netif, addr) static esp_err_t esp_netif_leave_ip6_multicast_group_api(esp_netif_api_msg_t *msg) { esp_ip6_addr_t *addr = (esp_ip6_addr_t *)msg->data; ip6_addr_t ip6addr; ESP_LOGD(TAG, "%s esp_netif:%p", __func__, msg->esp_netif); memcpy(ip6addr.addr, addr->addr, sizeof(ip6addr.addr)); #if LWIP_IPV6_SCOPES ip6addr.zone = 0; #endif ESP_RETURN_ON_FALSE(mld6_leavegroup_netif(msg->esp_netif->lwip_netif, &ip6addr) == ERR_OK, ESP_ERR_ESP_NETIF_MLD6_FAILED, TAG, "Failed to leave ip6 multicast group"); return ESP_OK; } esp_err_t esp_netif_leave_ip6_multicast_group(esp_netif_t *esp_netif, const esp_ip6_addr_t *addr) _RUN_IN_LWIP_TASK(esp_netif_leave_ip6_multicast_group_api, esp_netif, addr) static esp_err_t esp_netif_add_ip6_address_api(esp_netif_api_msg_t *msg) { ip_event_add_ip6_t *addr = (ip_event_add_ip6_t *)msg->data; ip6_addr_t ip6addr; esp_err_t error = ESP_OK; int8_t index = -1; ESP_LOGD(TAG, "%s esp_netif:%p", __func__, msg->esp_netif); memcpy(ip6addr.addr, addr->addr.addr, sizeof(ip6addr.addr)); #if LWIP_IPV6_SCOPES ip6addr.zone = 0; #endif err_t err = netif_add_ip6_address(msg->esp_netif->lwip_netif, &ip6addr, &index); ESP_RETURN_ON_FALSE(err == ERR_OK && index >= 0, ESP_ERR_ESP_NETIF_IP6_ADDR_FAILED, TAG, "Failed to add ip6 address"); netif_ip6_addr_set_state(msg->esp_netif->lwip_netif, index, addr->preferred ? IP6_ADDR_PREFERRED : IP6_ADDR_DEPRECATED); ip_event_got_ip6_t evt = {.esp_netif = msg->esp_netif, .ip_index = index}; evt.ip6_info.ip = addr->addr; ESP_RETURN_ON_ERROR(esp_event_post(IP_EVENT, IP_EVENT_GOT_IP6, &evt, sizeof(evt), 0), TAG, "Failed to post IP_EVENT_GOT_IP6"); return error; } esp_err_t esp_netif_add_ip6_address(esp_netif_t *esp_netif, const ip_event_add_ip6_t *addr) _RUN_IN_LWIP_TASK(esp_netif_add_ip6_address_api, esp_netif, addr) static esp_err_t esp_netif_remove_ip6_address_api(esp_netif_api_msg_t *msg) { esp_ip6_addr_t *addr = (esp_ip6_addr_t *)msg->data; ip6_addr_t ip6addr; ESP_LOGD(TAG, "%s esp_netif:%p", __func__, msg->esp_netif); memcpy(ip6addr.addr, addr->addr, sizeof(ip6addr.addr)); #if LWIP_IPV6_SCOPES ip6addr.zone = 0; #endif int8_t index = netif_get_ip6_addr_match(msg->esp_netif->lwip_netif, &ip6addr); if (index != -1) { netif_ip6_addr_set_state(msg->esp_netif->lwip_netif, index, IP6_ADDR_INVALID); } return ESP_OK; } esp_err_t esp_netif_remove_ip6_address(esp_netif_t *esp_netif, const esp_ip6_addr_t *addr) _RUN_IN_LWIP_TASK(esp_netif_remove_ip6_address_api, esp_netif, addr) #endif // CONFIG_LWIP_IPV6