2024-12-11 23:23:07 +01:00

261 lines
8.6 KiB
C

#include "esp_event.h"
#include "esp_log.h"
#include "esp_system.h"
#include "esp_wifi.h"
#include "freertos/FreeRTOS.h"
#include "freertos/event_groups.h"
#include "freertos/task.h"
#include "lwip/err.h"
#include "lwip/lwip_napt.h"
#include "lwip/sys.h"
#include "nvs_flash.h"
#include <string.h>
#include "connect.h"
#include "main.h"
#if CONFIG_ESP_WPA3_SAE_PWE_HUNT_AND_PECK
#define ESP_WIFI_SAE_MODE WPA3_SAE_PWE_HUNT_AND_PECK
#define EXAMPLE_H2E_IDENTIFIER ""
#elif CONFIG_ESP_WPA3_SAE_PWE_HASH_TO_ELEMENT
#define ESP_WIFI_SAE_MODE WPA3_SAE_PWE_HASH_TO_ELEMENT
#define EXAMPLE_H2E_IDENTIFIER CONFIG_ESP_WIFI_PW_ID
#elif CONFIG_ESP_WPA3_SAE_PWE_BOTH
#define ESP_WIFI_SAE_MODE WPA3_SAE_PWE_BOTH
#define EXAMPLE_H2E_IDENTIFIER CONFIG_ESP_WIFI_PW_ID
#endif
#if CONFIG_ESP_WIFI_AUTH_OPEN
#define ESP_WIFI_SCAN_AUTH_MODE_THRESHOLD WIFI_AUTH_OPEN
#elif CONFIG_ESP_WIFI_AUTH_WEP
#define ESP_WIFI_SCAN_AUTH_MODE_THRESHOLD WIFI_AUTH_WEP
#elif CONFIG_ESP_WIFI_AUTH_WPA_PSK
#define ESP_WIFI_SCAN_AUTH_MODE_THRESHOLD WIFI_AUTH_WPA_PSK
#elif CONFIG_ESP_WIFI_AUTH_WPA2_PSK
#define ESP_WIFI_SCAN_AUTH_MODE_THRESHOLD WIFI_AUTH_WPA2_PSK
#elif CONFIG_ESP_WIFI_AUTH_WPA_WPA2_PSK
#define ESP_WIFI_SCAN_AUTH_MODE_THRESHOLD WIFI_AUTH_WPA_WPA2_PSK
#elif CONFIG_ESP_WIFI_AUTH_WPA3_PSK
#define ESP_WIFI_SCAN_AUTH_MODE_THRESHOLD WIFI_AUTH_WPA3_PSK
#elif CONFIG_ESP_WIFI_AUTH_WPA2_WPA3_PSK
#define ESP_WIFI_SCAN_AUTH_MODE_THRESHOLD WIFI_AUTH_WPA2_WPA3_PSK
#elif CONFIG_ESP_WIFI_AUTH_WAPI_PSK
#define ESP_WIFI_SCAN_AUTH_MODE_THRESHOLD WIFI_AUTH_WAPI_PSK
#endif
/* FreeRTOS event group to signal when we are connected*/
static EventGroupHandle_t s_wifi_event_group;
static const char * TAG = "wifi_station";
static int s_retry_num = 0;
static char * _ip_addr_str;
static void event_handler(void * arg, esp_event_base_t event_base, int32_t event_id, void * event_data)
{
if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_START) {
esp_wifi_connect();
MINER_set_wifi_status(WIFI_CONNECTING, 0, 0);
} else if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_DISCONNECTED) {
//lookup the exact reason code
wifi_event_sta_disconnected_t* event = (wifi_event_sta_disconnected_t*) event_data;
if (event->reason == WIFI_REASON_ROAMING) {
ESP_LOGI(TAG, "We are roaming, nothing to do");
return;
}
ESP_LOGI(TAG, "Could not connect to '%s' [rssi %d]: reason %d", event->ssid, event->rssi, event->reason);
// Wait a little
vTaskDelay(2500 / portTICK_PERIOD_MS);
esp_wifi_connect();
s_retry_num++;
ESP_LOGI(TAG, "Retrying WiFi connection...");
MINER_set_wifi_status(WIFI_RETRYING, s_retry_num, event->reason);
} else if (event_base == IP_EVENT && event_id == IP_EVENT_STA_GOT_IP) {
ip_event_got_ip_t * event = (ip_event_got_ip_t *) event_data;
snprintf(_ip_addr_str, IP4ADDR_STRLEN_MAX, IPSTR, IP2STR(&event->ip_info.ip));
ESP_LOGI(TAG, "Bitaxe ip: %s", _ip_addr_str);
s_retry_num = 0;
xEventGroupSetBits(s_wifi_event_group, WIFI_CONNECTED_BIT);
MINER_set_wifi_status(WIFI_CONNECTED, 0, 0);
}
}
void generate_ssid(char * ssid)
{
uint8_t mac[6];
esp_wifi_get_mac(ESP_IF_WIFI_AP, mac);
// Format the last 4 bytes of the MAC address as a hexadecimal string
snprintf(ssid, 32, "Bitaxe_%02X%02X", mac[4], mac[5]);
}
esp_netif_t * wifi_init_softap(void)
{
esp_netif_t * esp_netif_ap = esp_netif_create_default_wifi_ap();
// Define a buffer for the SSID
char ssid_with_mac[13]; // "Bitaxe" + 4 bytes from MAC address
// Generate the SSID
generate_ssid(ssid_with_mac);
wifi_config_t wifi_ap_config;
memset(&wifi_ap_config, 0, sizeof(wifi_ap_config)); // Clear the structure
strncpy((char *) wifi_ap_config.ap.ssid, ssid_with_mac, sizeof(wifi_ap_config.ap.ssid));
wifi_ap_config.ap.ssid_len = strlen(ssid_with_mac);
wifi_ap_config.ap.channel = 1;
wifi_ap_config.ap.max_connection = 10;
wifi_ap_config.ap.authmode = WIFI_AUTH_OPEN;
wifi_ap_config.ap.pmf_cfg.required = false;
ESP_ERROR_CHECK(esp_wifi_set_config(WIFI_IF_AP, &wifi_ap_config));
return esp_netif_ap;
}
void toggle_wifi_softap(void)
{
wifi_mode_t mode = WIFI_MODE_NULL;
ESP_ERROR_CHECK(esp_wifi_get_mode(&mode));
if (mode == WIFI_MODE_APSTA) {
wifi_softap_off();
} else {
wifi_softap_on();
}
}
void wifi_softap_off(void)
{
ESP_LOGI(TAG, "ESP_WIFI Access Point Off");
ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
MINER_set_ap_status(false);
}
void wifi_softap_on(void)
{
ESP_LOGI(TAG, "ESP_WIFI Access Point On");
ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_APSTA));
MINER_set_ap_status(true);
}
/* Initialize wifi station */
esp_netif_t * wifi_init_sta(const char * wifi_ssid, const char * wifi_pass)
{
esp_netif_t * esp_netif_sta = esp_netif_create_default_wifi_sta();
/* Authmode threshold resets to WPA2 as default if password matches WPA2 standards (pasword len => 8).
* If you want to connect the device to deprecated WEP/WPA networks, Please set the threshold value
* to WIFI_AUTH_WEP/WIFI_AUTH_WPA_PSK and set the password with length and format matching to
* WIFI_AUTH_WEP/WIFI_AUTH_WPA_PSK standards.
*/
wifi_auth_mode_t authmode;
if (strlen(wifi_pass) == 0) {
ESP_LOGI(TAG, "No WiFi password provided, using open network");
authmode = WIFI_AUTH_OPEN;
} else {
ESP_LOGI(TAG, "WiFi Password provided, using WPA2");
authmode = WIFI_AUTH_WPA2_PSK;
}
wifi_config_t wifi_sta_config = {
.sta =
{
.threshold.authmode = authmode,
.btm_enabled = 1,
.rm_enabled = 1,
.scan_method = WIFI_ALL_CHANNEL_SCAN,
.sort_method = WIFI_CONNECT_AP_BY_SIGNAL,
.pmf_cfg =
{
.capable = true,
.required = false
},
},
};
strncpy((char *) wifi_sta_config.sta.ssid, wifi_ssid, sizeof(wifi_sta_config.sta.ssid));
wifi_sta_config.sta.ssid[sizeof(wifi_sta_config.sta.ssid) - 1] = '\0';
if (authmode != WIFI_AUTH_OPEN) {
strncpy((char *) wifi_sta_config.sta.password, wifi_pass, sizeof(wifi_sta_config.sta.password));
wifi_sta_config.sta.password[sizeof(wifi_sta_config.sta.password) - 1] = '\0';
}
// strncpy((char *) wifi_sta_config.sta.password, wifi_pass, 63);
// wifi_sta_config.sta.password[63] = '\0';
ESP_ERROR_CHECK(esp_wifi_set_config(WIFI_IF_STA, &wifi_sta_config));
ESP_LOGI(TAG, "wifi_init_sta finished.");
return esp_netif_sta;
}
void wifi_init(const char * wifi_ssid, const char * wifi_pass, const char * hostname, char * ip_addr_str)
{
_ip_addr_str = ip_addr_str;
s_wifi_event_group = xEventGroupCreate();
ESP_ERROR_CHECK(esp_netif_init());
ESP_ERROR_CHECK(esp_event_loop_create_default());
esp_event_handler_instance_t instance_any_id;
esp_event_handler_instance_t instance_got_ip;
ESP_ERROR_CHECK(esp_event_handler_instance_register(WIFI_EVENT, ESP_EVENT_ANY_ID, &event_handler, NULL, &instance_any_id));
ESP_ERROR_CHECK(esp_event_handler_instance_register(IP_EVENT, IP_EVENT_STA_GOT_IP, &event_handler, NULL, &instance_got_ip));
/*Initialize WiFi */
wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
ESP_ERROR_CHECK(esp_wifi_init(&cfg));
wifi_softap_on();
/* Initialize AP */
ESP_LOGI(TAG, "ESP_WIFI Access Point On");
wifi_init_softap();
/* Initialize STA */
ESP_LOGI(TAG, "ESP_WIFI_MODE_STA");
esp_netif_t * esp_netif_sta = wifi_init_sta(wifi_ssid, wifi_pass);
/* Start WiFi */
ESP_ERROR_CHECK(esp_wifi_start());
/* Disable power savings for best performance */
ESP_ERROR_CHECK(esp_wifi_set_ps(WIFI_PS_NONE));
/* Set Hostname */
esp_err_t err = esp_netif_set_hostname(esp_netif_sta, hostname);
if (err != ERR_OK) {
ESP_LOGW(TAG, "esp_netif_set_hostname failed: %s", esp_err_to_name(err));
} else {
ESP_LOGI(TAG, "ESP_WIFI setting hostname to: %s", hostname);
}
ESP_LOGI(TAG, "wifi_init_sta finished.");
return;
}
EventBits_t wifi_connect(void)
{
/* Waiting until either the connection is established (WIFI_CONNECTED_BIT) or connection failed for the maximum
* number of re-tries (WIFI_FAIL_BIT). The bits are set by event_handler() (see above) */
EventBits_t bits = xEventGroupWaitBits(s_wifi_event_group, WIFI_CONNECTED_BIT | WIFI_FAIL_BIT, pdFALSE, pdFALSE, portMAX_DELAY);
/* xEventGroupWaitBits() returns the bits before the call returned, hence we can test which event actually
* happened. */
return bits;
}