mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
socket-example: Add tcp client example for multiple interfaces
This commit is contained in:
Liu Han
David Cermak
parent
be3b6b7cb8
commit
547210f7a5
@ -0,0 +1,10 @@
|
||||
# The following lines of boilerplate have to be in your project's
|
||||
# CMakeLists in this exact order for cmake to work correctly
|
||||
cmake_minimum_required(VERSION 3.5)
|
||||
|
||||
# (Not part of the boilerplate)
|
||||
# This example uses an extra component for common functions such as Wi-Fi and Ethernet connection.
|
||||
set(EXTRA_COMPONENT_DIRS $ENV{IDF_PATH}/examples/common_components/protocol_examples_common)
|
||||
|
||||
include($ENV{IDF_PATH}/tools/cmake/project.cmake)
|
||||
project(tcp_client_multiple)
|
||||
11
examples/protocols/sockets/tcp_client_multi_net/Makefile
Normal file
11
examples/protocols/sockets/tcp_client_multi_net/Makefile
Normal file
@ -0,0 +1,11 @@
|
||||
#
|
||||
# This is a project Makefile. It is assumed the directory this Makefile resides in is a
|
||||
# project subdirectory.
|
||||
#
|
||||
|
||||
PROJECT_NAME := tcp_client_multiple
|
||||
|
||||
EXTRA_COMPONENT_DIRS = $(IDF_PATH)/examples/common_components/protocol_examples_common
|
||||
|
||||
include $(IDF_PATH)/make/project.mk
|
||||
|
||||
133
examples/protocols/sockets/tcp_client_multi_net/README.md
Normal file
133
examples/protocols/sockets/tcp_client_multi_net/README.md
Normal file
@ -0,0 +1,133 @@
|
||||
# Multiple Ethernet Example
|
||||
(See the README.md file in the upper level 'examples' directory for more information about examples.)
|
||||
|
||||
## Overview
|
||||
|
||||
This example demonstrates basic usage of Ethernet interface and WiFi station together. The workflow of the example could be as follow:
|
||||
|
||||
1. Connects to both WiFi and Ethernet using common-connect component
|
||||
2. Starts two tasks, one for each interface to resolve configured host name and connect to it periodically
|
||||
3. Connection to host endpoint is handled by:
|
||||
- creating a socket as TCP client
|
||||
- binding it to the related interface (Ethernet of WiFi)
|
||||
- send and receive a trivial HTTP request and response
|
||||
|
||||
If you have a new multiple interface application to go (for example, connect to IoT cloud via Ethernet and WiFi), try this as a basic template, then add your own code.
|
||||
|
||||
## How to use example
|
||||
|
||||
### Hardware Required
|
||||
|
||||
To run this example, you need to have one ESP32 development board integrated with an Ethernet interface, for example, ESP32-Ethernet-Kit, or just connect your ESP32-DevkitC board to a breakout board which features RMII Ethernet PHY.
|
||||
|
||||
### Configure the project
|
||||
|
||||
Enter project configuration by `idf.py menuconfig` (or `make menuconfig` if using legacy GNU Make build system) and navigate into:
|
||||
|
||||
* `Example Connection Configuration` menu to choose the connection details:
|
||||
|
||||
- Enter SSID and password for WiFi connection
|
||||
- Set Ethernet type and configuration for Ethernet connection
|
||||
- Note that the project is preconfigured to have both WiFi and Ethernet interface enabled by default
|
||||
- See the [README.md](../../README.md) for more details about common example connection component
|
||||
|
||||
* `Example Configuration` menu:
|
||||
|
||||
- Set host name and port for the tcp_client to connect to
|
||||
|
||||
### Build and Flash
|
||||
|
||||
Run `idf.py -p PORT flash monitor` to build and flash the project..
|
||||
|
||||
(To exit the serial monitor, type ``Ctrl-]``.)
|
||||
|
||||
See the [Getting Started Guide](https://docs.espressif.com/projects/esp-idf/en/latest/get-started/index.html) for full steps to configure and use ESP-IDF to build projects.
|
||||
|
||||
## Example Output
|
||||
|
||||
```bash
|
||||
I (695) example_connect: Connecting to DavidsAP...
|
||||
I (795) phy: phy_version: 4180, cb3948e, Sep 12 2019, 16:39:13, 0, 0
|
||||
I (795) wifi:mode : sta (30:ae:a4:c6:b4:f8)
|
||||
W (795) event: handler already registered, overwriting
|
||||
I (815) esp_eth.netif.glue: 30:ae:a4:c6:b4:fb
|
||||
I (815) esp_eth.netif.glue: ethernet attached to netif
|
||||
I (825) example_connect: Waiting for IP(s)
|
||||
I (1525) wifi:new:<6,0>, old:<1,0>, ap:<255,255>, sta:<6,0>, prof:1
|
||||
I (2295) wifi:state: init -> auth (b0)
|
||||
I (2295) wifi:state: auth -> assoc (0)
|
||||
I (2305) wifi:state: assoc -> run (10)
|
||||
I (2315) wifi:connected with DavidsAP, aid = 2, channel 6, BW20, bssid = 16:f7:28:37:58:36
|
||||
I (2315) wifi:security type: 3, phy: bgn, rssi: -35
|
||||
I (2315) wifi:pm start, type: 1
|
||||
|
||||
I (2325) wifi:AP's beacon interval = 102400 us, DTIM period = 3
|
||||
I (3125) esp_netif_handlers: example_connect: sta ip: 192.168.2.15, mask: 255.255.255.0, gw: 192.168.2.1
|
||||
I (3125) example_connect: Interface desciption example_connect: sta
|
||||
I (3135) example_connect: Interface "example_connect: sta" got IPv4 address: 192.168.2.15
|
||||
I (3625) example_connect: Interface "example_connect: sta" got IPv6 address: fe80:0000:0000:0000:32ae:a4ff:fec6:b4f8, type: ESP_IP6_ADDR_IS_LINK_LOCAL
|
||||
I (4825) example_connect: Ethernet Link Up
|
||||
I (5625) esp_netif_handlers: example_connect: eth ip: 192.168.32.148, mask: 255.255.252.0, gw: 192.168.32.3
|
||||
I (5625) example_connect: Interface desciption example_connect: eth
|
||||
I (5635) example_connect: Interface "example_connect: eth" got IPv4 address: 192.168.32.148
|
||||
I (6625) example_connect: Interface "example_connect: eth" got IPv6 address: fe80:0000:0000:0000:32ae:a4ff:fec6:b4fb, type: ESP_IP6_ADDR_IS_LINK_LOCAL
|
||||
I (6625) example_connect: Connected to example_connect: eth
|
||||
I (6635) example_connect: - IPv4 address: 192.168.32.148
|
||||
I (6635) example_connect: - IPv6 address: fe80:0000:0000:0000:32ae:a4ff:fec6:b4fbtype: ESP_IP6_ADDR_IS_LINK_LOCAL
|
||||
I (6645) example_connect: Connected to example_connect: sta
|
||||
I (6655) example_connect: - IPv4 address: 192.168.2.15
|
||||
I (6655) example_connect: - IPv6 address: fe80:0000:0000:0000:32ae:a4ff:fec6:b4f8type: ESP_IP6_ADDR_IS_LINK_LOCAL
|
||||
I (6675) example_connect: Connected to Ethernet
|
||||
I (6675) tcp_client_multiple: netif described as "sta" corresponds to esp-netif ptr:0x3ffba3ac
|
||||
I (6675) tcp_client_multiple: netif described as "eth" corresponds to esp-netif ptr:0x3ffc608c
|
||||
I (6895) tcp_client_multiple: "example_connect: eth" Socket created
|
||||
I (6895) tcp_client_multiple: "example_connect: sta" Socket created
|
||||
I (6895) tcp_client_multiple: "example_connect: eth" Successfully connected
|
||||
I (6905) tcp_client_multiple: "example_connect: sta" Successfully connected
|
||||
I (6965) tcp_client_multiple: "example_connect: eth" Received Data 127 bytes
|
||||
I (6965) tcp_client_multiple: HTTP/1.1 200 OK
|
||||
Date: Thu, 23 Apr 2020 07:02:58 GMT
|
||||
Expires: -1
|
||||
Cache-Control: private, max-age=0
|
||||
Content-Type: text/html;
|
||||
I (6965) tcp_client_multiple: "example_connect: sta" Received Data 127 bytes
|
||||
I (6985) tcp_client_multiple: HTTP/1.1 200 OK
|
||||
Date: Thu, 23 Apr 2020 07:02:58 GMT
|
||||
Expires: -1
|
||||
Cache-Control: private, max-age=0
|
||||
Content-Type: text/html;
|
||||
I (7675) tcp_client_multiple: "example_connect: eth" Socket created
|
||||
I (7675) tcp_client_multiple: "example_connect: eth" Successfully connected
|
||||
I (7695) tcp_client_multiple: "example_connect: sta" Socket created
|
||||
I (7705) tcp_client_multiple: "example_connect: sta" Successfully connected
|
||||
I (7735) tcp_client_multiple: "example_connect: eth" Received Data 127 bytes
|
||||
I (7735) tcp_client_multiple: HTTP/1.1 200 OK
|
||||
Date: Thu, 23 Apr 2020 07:02:59 GMT
|
||||
Expires: -1
|
||||
Cache-Control: private, max-age=0
|
||||
Content-Type: text/html;
|
||||
I (7955) tcp_client_multiple: "example_connect: sta" Received Data 127 bytes
|
||||
I (7955) tcp_client_multiple: HTTP/1.1 200 OK
|
||||
Date: Thu, 23 Apr 2020 07:02:59 GMT
|
||||
Expires: -1
|
||||
Cache-Control: private, max-age=0
|
||||
Content-Type: text/html;
|
||||
I (8445) tcp_client_multiple: "example_connect: eth" Socket created
|
||||
I (8445) tcp_client_multiple: "example_connect: eth" Successfully connected
|
||||
I (8505) tcp_client_multiple: "example_connect: eth" Received Data 127 bytes
|
||||
I (8505) tcp_client_multiple: HTTP/1.1 200 OK
|
||||
Date: Thu, 23 Apr 2020 07:03:00 GMT
|
||||
Expires: -1
|
||||
Cache-Control: private, max-age=0
|
||||
Content-Type: text/html;
|
||||
I (8675) tcp_client_multiple: "example_connect: sta" Socket created
|
||||
```
|
||||
|
||||
## Troubleshooting
|
||||
|
||||
* When connecting using Ethernet, please consult troubleshooting described in [Ethernet common readme](../../../ethernet/README.md)
|
||||
or [Ethernet documentation](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/network/esp_eth.html).
|
||||
If using Ethernet for the first time, it is recommended to start with the [Ethernet example readme](../../../ethernet/basic/README.md), which contains instructions for connecting and configuring the PHY.
|
||||
Once Ethernet example obtains IP address successfully, proceed to this example.
|
||||
|
||||
* When connecting using Wi-Fi, please refer to the WiFi examples in [examples/wifi/getting_started/](../wifi/getting_started).
|
||||
@ -0,0 +1,2 @@
|
||||
idf_component_register(SRCS "tcp_client_multiple.c"
|
||||
INCLUDE_DIRS ".")
|
||||
@ -0,0 +1,16 @@
|
||||
menu "Example Configuration"
|
||||
|
||||
config EXAMPLE_HOST_NAME
|
||||
string "Host Name"
|
||||
default "baidu.com"
|
||||
help
|
||||
host name
|
||||
|
||||
config EXAMPLE_HOST_PORT
|
||||
int "Host Port"
|
||||
default 80
|
||||
range 0 65535
|
||||
help
|
||||
host port
|
||||
|
||||
endmenu
|
||||
@ -0,0 +1,4 @@
|
||||
#
|
||||
# "main" pseudo-component makefile.
|
||||
#
|
||||
# (Uses default behaviour of compiling all source files in directory, adding 'include' to include path.)
|
||||
@ -0,0 +1,144 @@
|
||||
/* multiple network interface Example
|
||||
|
||||
This example code is in the Public Domain (or CC0 licensed, at your option.)
|
||||
|
||||
Unless required by applicable law or agreed to in writing, this
|
||||
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
||||
CONDITIONS OF ANY KIND, either express or implied.
|
||||
*/
|
||||
|
||||
#include <string.h>
|
||||
#include "freertos/FreeRTOS.h"
|
||||
#include "freertos/task.h"
|
||||
#include "esp_netif.h"
|
||||
#include "esp_eth.h"
|
||||
#include "esp_event.h"
|
||||
#include "esp_log.h"
|
||||
#include "sdkconfig.h"
|
||||
#include "nvs_flash.h"
|
||||
#include "esp_netif.h"
|
||||
#include <sys/socket.h>
|
||||
#include <netdb.h>
|
||||
#include "protocol_examples_common.h"
|
||||
|
||||
static const char *TAG = "tcp_client_multiple";
|
||||
|
||||
#define HOST_NAME CONFIG_EXAMPLE_HOST_NAME
|
||||
#define HOST_IP_PORT CONFIG_EXAMPLE_HOST_PORT
|
||||
|
||||
static const char *payload = "GET / HTTP/1.1\r\n\r\n";
|
||||
|
||||
static void app_multiple_handle(esp_ip4_addr_t *ip4_addr, esp_netif_t *esp_netif)
|
||||
{
|
||||
esp_netif_ip_info_t ip;
|
||||
char rx_buffer[128] = {0};
|
||||
const char *netif_name = esp_netif_get_desc(esp_netif);
|
||||
|
||||
/* Create a socket */
|
||||
int sock = socket(AF_INET, SOCK_STREAM, IPPROTO_IP);
|
||||
if (sock < 0) {
|
||||
ESP_LOGE(TAG, "\"%s\" Unable to create socket: errno %d", netif_name, errno);
|
||||
goto app_multiple_handle_fail;
|
||||
}
|
||||
ESP_LOGI(TAG, "\"%s\" Socket created", netif_name);
|
||||
|
||||
/* Bind local IP of the network interface */
|
||||
memset(&ip, 0, sizeof(esp_netif_ip_info_t));
|
||||
ESP_ERROR_CHECK(esp_netif_get_ip_info(esp_netif, &ip));
|
||||
|
||||
struct sockaddr_in addr;
|
||||
memset(&addr, 0, sizeof(addr));
|
||||
addr.sin_family = AF_INET;
|
||||
addr.sin_port = htons(0);
|
||||
addr.sin_addr.s_addr = ip.ip.addr;
|
||||
|
||||
int ret = bind(sock, (struct sockaddr *)&addr, sizeof(addr));
|
||||
if (ret < 0) {
|
||||
ESP_LOGE(TAG, "\"%s\" Unable to bind socket: errno %d", netif_name, errno);
|
||||
goto app_multiple_handle_fail;
|
||||
}
|
||||
|
||||
/* Connect to the host by the network interface */
|
||||
struct sockaddr_in destAddr;
|
||||
destAddr.sin_addr.s_addr = ip4_addr->addr;
|
||||
destAddr.sin_family = AF_INET;
|
||||
destAddr.sin_port = htons(HOST_IP_PORT);
|
||||
ret = connect(sock, (struct sockaddr *)&destAddr, sizeof(destAddr));
|
||||
if (ret != 0) {
|
||||
ESP_LOGE(TAG, "\"%s\" Socket unable to connect: errno %d", netif_name, errno);
|
||||
goto app_multiple_handle_fail;
|
||||
}
|
||||
ESP_LOGI(TAG, "\"%s\" Successfully connected", netif_name);
|
||||
|
||||
ret = send(sock, payload, strlen(payload), 0);
|
||||
if (ret < 0) {
|
||||
ESP_LOGE(TAG, "\"%s\" Error occured during sending: errno %d", netif_name, errno);
|
||||
goto app_multiple_handle_fail;
|
||||
}
|
||||
|
||||
ret = recv(sock, rx_buffer, sizeof(rx_buffer) - 1, 0);
|
||||
if (ret < 0) {
|
||||
ESP_LOGE(TAG, "\"%s\" Error occured during receiving: errno %d", netif_name, errno);
|
||||
} else if (ret > 0){
|
||||
rx_buffer[ret] = 0; // Null-terminate whatever we received and treat like a string
|
||||
ESP_LOGI(TAG, "\"%s\" Received Data %d bytes", netif_name, ret);
|
||||
ESP_LOGI(TAG, "%s", rx_buffer);
|
||||
} else {
|
||||
ESP_LOGE(TAG, "\"%s\" Closed connection during receiving", netif_name);
|
||||
}
|
||||
|
||||
app_multiple_handle_fail:
|
||||
close(sock);
|
||||
}
|
||||
|
||||
static void app_connection_task(void *pvParameters)
|
||||
{
|
||||
esp_ip4_addr_t ip4_addr;
|
||||
const char *netif_desc = pvParameters;
|
||||
|
||||
esp_netif_t *netif = get_example_netif_from_desc(netif_desc);
|
||||
ESP_LOGD(TAG, "netif described as \"%s\" corresponds to esp-netif ptr:%p", netif_desc, netif);
|
||||
while(netif) {
|
||||
/* Wait for the host name to get */
|
||||
const struct addrinfo hints = {
|
||||
.ai_family = AF_INET,
|
||||
.ai_socktype = SOCK_STREAM,
|
||||
};
|
||||
struct addrinfo *res;
|
||||
|
||||
int err = getaddrinfo(HOST_NAME, NULL, &hints, &res);
|
||||
if(err != 0 || res == NULL) {
|
||||
ESP_LOGE(TAG, "DNS lookup failed err=%d res=%p", err, res);
|
||||
break;
|
||||
}
|
||||
memcpy(&ip4_addr, &((struct sockaddr_in *)(res->ai_addr))->sin_addr, sizeof(ip4_addr));
|
||||
freeaddrinfo(res);
|
||||
|
||||
/* Connect the host using the corresponding network interface */
|
||||
app_multiple_handle(&ip4_addr, netif);
|
||||
|
||||
vTaskDelay(500 / portTICK_PERIOD_MS);
|
||||
}
|
||||
ESP_LOGE(TAG, "%s with netif desc:%s Failed! exiting", __func__, netif_desc);
|
||||
vTaskDelete(NULL);
|
||||
}
|
||||
|
||||
void app_main(void)
|
||||
{
|
||||
//Initialize NVS
|
||||
esp_err_t ret = nvs_flash_init();
|
||||
if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
|
||||
ESP_ERROR_CHECK(nvs_flash_erase());
|
||||
ret = nvs_flash_init();
|
||||
}
|
||||
ESP_ERROR_CHECK(ret);
|
||||
|
||||
esp_netif_init();
|
||||
|
||||
ESP_ERROR_CHECK(esp_event_loop_create_default());
|
||||
|
||||
ESP_ERROR_CHECK(example_connect());
|
||||
|
||||
xTaskCreate(&app_connection_task, "app_ethernet_task", 4096, "eth", 5, NULL);
|
||||
xTaskCreate(&app_connection_task, "app_wifi_task", 4096, "sta", 5, NULL);
|
||||
}
|
||||
@ -0,0 +1,2 @@
|
||||
CONFIG_EXAMPLE_CONNECT_WIFI=y
|
||||
CONFIG_EXAMPLE_CONNECT_ETHERNET=y
|
||||
Loading…
Reference in New Issue
Block a user