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lwip/linux: Add lwip support for networking component under linux

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linux/lwip: Wrap some IO posix functions
* to workaourd the FreeRTOS EINTR issue (when building without lwip)
* to correctly choose the sub-system based on fd (when building with
lwip) -- passing control to either linux/system or to lwip
This commit also addapts tapio-if to provide DHCP client by default and
configurable settings for static IP
This commit is contained in:
David Cermak
2023-04-03 20:31:51 +02:00
committed by David Čermák
parent 0bfffa0160
commit b2af4d9689
31 changed files with 277 additions and 88 deletions
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37
examples/common_components/protocol_examples_tapif_io/linux_connect.c
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@@ -7,6 +7,26 @@
#include "esp_netif.h" // esp-netif
#include "tapio.h" // esp-netif's driver side
#include "lwip/tapif.h" // esp-netif's network stack side
#include "esp_log.h"
#if CONFIG_EXAMPLE_CONNECT_WAIT_FOR_IP
#include "esp_event.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/event_groups.h"
static const char *TAG = "linux_connect";
static EventGroupHandle_t s_events;
static void event_handler(void* arg, esp_event_base_t event_base, int32_t event_id, void* event_data)
{
xEventGroupSetBits(s_events, 1);
}
#endif // CONFIG_EXAMPLE_CONNECT_WAIT_FOR_IP
#define TAP0_GOT_IP (0x1234)
esp_err_t example_connect(void)
{
@@ -25,14 +45,20 @@ esp_err_t example_connect(void)
};
// configure inherent esp-netif parameters
esp_netif_ip_info_t ip_info = {};
esp_netif_flags_t netif_flags = (ESP_NETIF_FLAG_EVENT_IP_MODIFIED | ESP_NETIF_FLAG_AUTOUP);
#if !CONFIG_EXAMPLE_CONNECT_WAIT_FOR_IP
ip_info.ip.addr = ipaddr_addr(CONFIG_EXAMPLE_CONNECT_TAPIF_IP_ADDR);
ip_info.netmask.addr = ipaddr_addr(CONFIG_EXAMPLE_CONNECT_TAPIF_NETMASK);
ip_info.gw.addr = ipaddr_addr(CONFIG_EXAMPLE_CONNECT_TAPIF_GW);
#else
netif_flags |= ESP_NETIF_DHCP_CLIENT;
#endif
esp_netif_inherent_config_t base_cfg = {
.if_key = "TAP",
.flags = ESP_NETIF_FLAG_AUTOUP,
.ip_info = &ip_info,
.flags = netif_flags,
.get_ip_event = TAP0_GOT_IP,
.route_prio = 100
};
@@ -46,6 +72,15 @@ esp_err_t example_connect(void)
// create the interface and attach it to the tapio-handle
esp_netif_t *tap_netif = esp_netif_new(&cfg);
esp_netif_attach(tap_netif, driver_cfg.handle);
#if CONFIG_EXAMPLE_CONNECT_WAIT_FOR_IP
ESP_LOGI(TAG, "Waiting for IP addresses...");
esp_netif_action_connected(tap_netif, 0, 0, 0);
ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, TAP0_GOT_IP, event_handler, NULL));
s_events = xEventGroupCreate();
xEventGroupWaitBits(s_events, 1, pdFALSE, pdFALSE, portMAX_DELAY);
esp_netif_get_ip_info(tap_netif, &ip_info);
ESP_LOGI(TAG, "Assigned IP address:"IPSTR ",", IP2STR(&ip_info.ip));
#endif // CONFIG_EXAMPLE_CONNECT_WAIT_FOR_IP
#endif // EXAMPLE_CONNECT_LWIP_TAPIF
return ESP_OK;
}