/**
* Initializes DHCP server
*/
LOCAL void ICACHE_FLASH_ATTR esp_wifi_setup_dhcp_server( void )
{
struct dhcps_lease admin_dhcp_config;
uint8_t dhcp_server = 0x01;
uint8_t dhcp_start_ip[ 4 ] = { WIFI_DHCP_SERVER_START_IP };
uint8_t dhcp_end_ip[ 4 ] = { WIFI_DHCP_SERVER_END_IP };
// check if parameters don't exist
/* if( esp_flash_read_parameter( ESP_WIFI_APMODE_DHCP_ENABLE_ID, &dhcp_server ) == 0x00 )
{
// save defaults in flash
esp_flash_save_parameter( ESP_WIFI_APMODE_DHCP_ENABLE_ID, &dhcp_server, 0x01 );
esp_flash_save_parameter( ESP_WIFI_APMODE_DHCP_START_IP_ID, dhcp_start_ip, 0x04 );
esp_flash_save_parameter( ESP_WIFI_APMODE_DHCP_END_IP_ID, dhcp_end_ip, 0x04 );
} else {*/
// stop the DHCP
if( wifi_softap_dhcps_status() == DHCP_STARTED )
wifi_softap_dhcps_stop();
// check if DHCP is enabled
// if( dhcp_server == 0x01 )
// {
// read configuration details
//esp_flash_read_parameter( ESP_WIFI_APMODE_DHCP_START_IP_ID, dhcp_start_ip );
// esp_flash_read_parameter( ESP_WIFI_APMODE_DHCP_END_IP_ID, dhcp_end_ip );
// configure and turn on DHCP
IP4_ADDR( &admin_dhcp_config.start_ip, dhcp_start_ip[ 0 ], dhcp_start_ip[ 1 ], dhcp_start_ip[ 2 ], dhcp_start_ip[ 3 ] );
IP4_ADDR( &admin_dhcp_config.end_ip, dhcp_end_ip[ 0 ], dhcp_end_ip[ 1 ], dhcp_end_ip[ 2 ], dhcp_end_ip[ 3 ] );
wifi_softap_set_dhcps_lease( &admin_dhcp_config );
wifi_softap_dhcps_start();
// }
// }
}
bool ICACHE_FLASH_ATTR wifi_softap_set_dhcps_offer_option(uint8 level, void* optarg)
{
bool offer_flag = true;
if (optarg == NULL && wifi_softap_dhcps_status() == false)
return false;
if (level <= OFFER_START || level >= OFFER_END)
return false;
switch (level){
case OFFER_ROUTER:
offer = (*(uint8 *)optarg) & 0x01;
offer_flag = true;
break;
default :
offer_flag = false;
break;
}
return offer_flag;
}
/**
* Set up an access point
* @param ssid Pointer to the SSID (max 63 char).
* @param passphrase (for WPA2 min 8 char, for open use NULL)
* @param channel WiFi channel number, 1 - 13.
* @param ssid_hidden Network cloaking (0 = broadcast SSID, 1 = hide SSID)
* @param max_connection Max simultaneous connected clients, 1 - 4.
*/
bool ESP8266WiFiAPClass::softAP(const char* ssid, const char* passphrase, int channel, int ssid_hidden, int max_connection) {
if(!WiFi.enableAP(true)) {
// enable AP failed
DEBUG_WIFI("[AP] enableAP failed!\n");
return false;
}
if(!ssid || strlen(ssid) == 0 || strlen(ssid) > 31) {
// fail SSID too long or missing!
DEBUG_WIFI("[AP] SSID too long or missing!\n");
return false;
}
if(passphrase && strlen(passphrase) > 0 && (strlen(passphrase) > 63 || strlen(passphrase) < 8)) {
// fail passphrase to long or short!
DEBUG_WIFI("[AP] fail passphrase to long or short!\n");
return false;
}
bool ret = true;
struct softap_config conf;
strcpy(reinterpret_cast<char*>(conf.ssid), ssid);
conf.channel = channel;
conf.ssid_len = strlen(ssid);
conf.ssid_hidden = ssid_hidden;
conf.max_connection = max_connection;
conf.beacon_interval = 100;
if(!passphrase || strlen(passphrase) == 0) {
conf.authmode = AUTH_OPEN;
*conf.password = 0;
} else {
conf.authmode = AUTH_WPA2_PSK;
strcpy(reinterpret_cast<char*>(conf.password), passphrase);
}
struct softap_config conf_compare;
if(WiFi._persistent){
wifi_softap_get_config_default(&conf_compare);
}
else {
wifi_softap_get_config(&conf_compare);
}
if(!softap_config_equal(conf, conf_compare)) {
ETS_UART_INTR_DISABLE();
if(WiFi._persistent) {
ret = wifi_softap_set_config(&conf);
} else {
ret = wifi_softap_set_config_current(&conf);
}
ETS_UART_INTR_ENABLE();
if(!ret) {
DEBUG_WIFI("[AP] set_config failed!\n");
return false;
}
} else {
DEBUG_WIFI("[AP] softap config unchanged\n");
}
if(wifi_softap_dhcps_status() != DHCP_STARTED) {
DEBUG_WIFI("[AP] DHCP not started, starting...\n");
if(!wifi_softap_dhcps_start()) {
DEBUG_WIFI("[AP] wifi_softap_dhcps_start failed!\n");
ret = false;
}
}
// check IP config
struct ip_info ip;
if(wifi_get_ip_info(SOFTAP_IF, &ip)) {
if(ip.ip.addr == 0x00000000) {
// Invalid config
DEBUG_WIFI("[AP] IP config Invalid resetting...\n");
//192.168.244.1 , 192.168.244.1 , 255.255.255.0
ret = softAPConfig(0x01F4A8C0, 0x01F4A8C0, 0x00FFFFFF);
if(!ret) {
DEBUG_WIFI("[AP] softAPConfig failed!\n");
ret = false;
}
}
} else {
DEBUG_WIFI("[AP] wifi_get_ip_info failed!\n");
ret = false;
}
return ret;
}
