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funkwetter-display/Software/libraries/ESP8266WiFi/src/ESP8266WiFiAP.cpp
Joachim Hummel e76db08b77 Added Software
2022-06-19 11:10:04 +00:00

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/*
ESP8266WiFiSTA.cpp - WiFi library for esp8266
Copyright (c) 2014 Ivan Grokhotkov. All rights reserved.
This file is part of the esp8266 core for Arduino environment.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Reworked on 28 Dec 2015 by Markus Sattler
*/
#include "ESP8266WiFi.h"
#include "ESP8266WiFiGeneric.h"
#include "ESP8266WiFiAP.h"
extern "C" {
#include "c_types.h"
#include "ets_sys.h"
#include "os_type.h"
#include "osapi.h"
#include "mem.h"
#include "user_interface.h"
}
#include "debug.h"
// -----------------------------------------------------------------------------------------------------------------------
// ---------------------------------------------------- Private functions ------------------------------------------------
// -----------------------------------------------------------------------------------------------------------------------
static bool softap_config_equal(const softap_config& lhs, const softap_config& rhs);
/**
* compare two AP configurations
* @param lhs softap_config
* @param rhs softap_config
* @return equal
*/
static bool softap_config_equal(const softap_config& lhs, const softap_config& rhs) {
if(strcmp(reinterpret_cast<const char*>(lhs.ssid), reinterpret_cast<const char*>(rhs.ssid)) != 0) {
return false;
}
if(strcmp(reinterpret_cast<const char*>(lhs.password), reinterpret_cast<const char*>(rhs.password)) != 0) {
return false;
}
if(lhs.channel != rhs.channel) {
return false;
}
if(lhs.ssid_hidden != rhs.ssid_hidden) {
return false;
}
if(lhs.max_connection != rhs.max_connection) {
return false;
}
return true;
}
// -----------------------------------------------------------------------------------------------------------------------
// ----------------------------------------------------- AP function -----------------------------------------------------
// -----------------------------------------------------------------------------------------------------------------------
/**
* 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_current;
wifi_softap_get_config(&conf_current);
if(!softap_config_equal(conf, conf_current)) {
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;
}
/**
* Configure access point
* @param local_ip access point IP
* @param gateway gateway IP
* @param subnet subnet mask
*/
bool ESP8266WiFiAPClass::softAPConfig(IPAddress local_ip, IPAddress gateway, IPAddress subnet) {
DEBUG_WIFI("[APConfig] local_ip: %s gateway: %s subnet: %s\n", local_ip.toString().c_str(), gateway.toString().c_str(), subnet.toString().c_str());
if(!WiFi.enableAP(true)) {
// enable AP failed
DEBUG_WIFI("[APConfig] enableAP failed!\n");
return false;
}
bool ret = true;
struct ip_info info;
info.ip.addr = static_cast<uint32_t>(local_ip);
info.gw.addr = static_cast<uint32_t>(gateway);
info.netmask.addr = static_cast<uint32_t>(subnet);
if(!wifi_softap_dhcps_stop()) {
DEBUG_WIFI("[APConfig] wifi_softap_dhcps_stop failed!\n");
}
if(!wifi_set_ip_info(SOFTAP_IF, &info)) {
DEBUG_WIFI("[APConfig] wifi_set_ip_info failed!\n");
ret = false;
}
struct dhcps_lease dhcp_lease;
IPAddress ip = local_ip;
ip[3] += 99;
dhcp_lease.start_ip.addr = static_cast<uint32_t>(ip);
DEBUG_WIFI("[APConfig] DHCP IP start: %s\n", ip.toString().c_str());
ip[3] += 100;
dhcp_lease.end_ip.addr = static_cast<uint32_t>(ip);
DEBUG_WIFI("[APConfig] DHCP IP end: %s\n", ip.toString().c_str());
if(!wifi_softap_set_dhcps_lease(&dhcp_lease)) {
DEBUG_WIFI("[APConfig] wifi_set_ip_info failed!\n");
ret = false;
}
// set lease time to 720min --> 12h
if(!wifi_softap_set_dhcps_lease_time(720)) {
DEBUG_WIFI("[APConfig] wifi_softap_set_dhcps_lease_time failed!\n");
ret = false;
}
uint8 mode = 1;
if(!wifi_softap_set_dhcps_offer_option(OFFER_ROUTER, &mode)) {
DEBUG_WIFI("[APConfig] wifi_softap_set_dhcps_offer_option failed!\n");
ret = false;
}
if(!wifi_softap_dhcps_start()) {
DEBUG_WIFI("[APConfig] wifi_softap_dhcps_start failed!\n");
ret = false;
}
// check config
if(wifi_get_ip_info(SOFTAP_IF, &info)) {
if(info.ip.addr == 0x00000000) {
DEBUG_WIFI("[APConfig] IP config Invalid?!\n");
ret = false;
} else if(local_ip != info.ip.addr) {
ip = info.ip.addr;
DEBUG_WIFI("[APConfig] IP config not set correct?! new IP: %s\n", ip.toString().c_str());
ret = false;
}
} else {
DEBUG_WIFI("[APConfig] wifi_get_ip_info failed!\n");
ret = false;
}
return ret;
}
/**
* Disconnect from the network (close AP)
* @param wifioff disable mode?
* @return one value of wl_status_t enum
*/
bool ESP8266WiFiAPClass::softAPdisconnect(bool wifioff) {
bool ret;
struct softap_config conf;
*conf.ssid = 0;
*conf.password = 0;
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("[APdisconnect] set_config failed!\n");
}
if(wifioff) {
ret = WiFi.enableAP(false);
}
return ret;
}
/**
* Get the count of the Station / client that are connected to the softAP interface
* @return Stations count
*/
uint8_t ESP8266WiFiAPClass::softAPgetStationNum() {
return wifi_softap_get_station_num();
}
/**
* Get the softAP interface IP address.
* @return IPAddress softAP IP
*/
IPAddress ESP8266WiFiAPClass::softAPIP() {
struct ip_info ip;
wifi_get_ip_info(SOFTAP_IF, &ip);
return IPAddress(ip.ip.addr);
}
/**
* Get the softAP interface MAC address.
* @param mac pointer to uint8_t array with length WL_MAC_ADDR_LENGTH
* @return pointer to uint8_t*
*/
uint8_t* ESP8266WiFiAPClass::softAPmacAddress(uint8_t* mac) {
wifi_get_macaddr(SOFTAP_IF, mac);
return mac;
}
/**
* Get the softAP interface MAC address.
* @return String mac
*/
String ESP8266WiFiAPClass::softAPmacAddress(void) {
uint8_t mac[6];
char macStr[18] = { 0 };
wifi_get_macaddr(SOFTAP_IF, mac);
sprintf(macStr, "%02X:%02X:%02X:%02X:%02X:%02X", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
return String(macStr);
}
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