localhorst/smart-oil-heating-control-system
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enable ap lock

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Hendrik Schutter
2026-01-09 23:26:46 +01:00
parent cb69bea618
commit 618a6974bf
2 changed files with 54 additions and 0 deletions
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40
main/wifi.c
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@ -19,6 +19,7 @@ static const char *TAG = "smart-oil-heater-control-system-wifi";
static EventGroupHandle_t s_wifi_event_group;
static void event_handler(void *arg, esp_event_base_t event_base,
int32_t event_id, void *event_data);
static bool parse_bssid(const char *bssid_str, uint8_t *bssid);
void initWifi(void)
{
@ -56,6 +57,21 @@ void initWifi(void)
.threshold.authmode = WIFI_AUTH_WPA2_PSK,
},
};
#if CONFIG_ENV_WIFI_BSSID_LOCK
/* Lock to specific AP by BSSID */
if (parse_bssid(CONFIG_ENV_WIFI_BSSID, wifi_config.sta.bssid))
{
wifi_config.sta.bssid_set = true;
ESP_LOGI(TAG, "BSSID lock enabled: %s", CONFIG_ENV_WIFI_BSSID);
}
else
{
ESP_LOGE(TAG, "Invalid BSSID format: %s", CONFIG_ENV_WIFI_BSSID);
wifi_config.sta.bssid_set = false;
}
#endif
ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
ESP_ERROR_CHECK(esp_wifi_set_config(WIFI_IF_STA, &wifi_config));
@ -105,4 +121,28 @@ static void event_handler(void *arg, esp_event_base_t event_base,
ESP_LOGI(TAG, "Got ip:" IPSTR, IP2STR(&event->ip_info.ip));
xEventGroupSetBits(s_wifi_event_group, WIFI_CONNECTED_BIT);
}
}
/**
* @brief Parse BSSID string to byte array
*
* @param bssid_str BSSID string in format "XX:XX:XX:XX:XX:XX"
* @param bssid Output byte array (6 bytes)
* @return true on success, false on parse error
*/
static bool parse_bssid(const char *bssid_str, uint8_t *bssid)
{
unsigned int tmp[6];
int parsed = sscanf(bssid_str, "%x:%x:%x:%x:%x:%x",
&tmp[0], &tmp[1], &tmp[2],
&tmp[3], &tmp[4], &tmp[5]);
if (parsed != 6)
{
return false;
}
for (int i = 0; i < 6; i++)
{
bssid[i] = (uint8_t)tmp[i];
}
return true;
}