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113 lines
3.8 KiB
C++
113 lines
3.8 KiB
C++
/*
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ESP8266 Multicast DNS (port of CC3000 Multicast DNS library)
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Version 1.1
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Copyright (c) 2013 Tony DiCola (tony@tonydicola.com)
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ESP8266 port (c) 2015 Ivan Grokhotkov (ivan@esp8266.com)
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This is a simple implementation of multicast DNS query support for an Arduino
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running on ESP8266 chip. Only support for resolving address queries is currently
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implemented.
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Requirements:
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- ESP8266WiFi library
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Usage:
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- Include the ESP8266 Multicast DNS library in the sketch.
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- Call the begin method in the sketch's setup and provide a domain name (without
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the '.local' suffix, i.e. just provide 'foo' to resolve 'foo.local'), and the
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Adafruit CC3000 class instance. Optionally provide a time to live (in seconds)
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for the DNS record--the default is 1 hour.
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- Call the update method in each iteration of the sketch's loop function.
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License (MIT license):
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#ifndef ESP8266MDNS_H
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#define ESP8266MDNS_H
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#include "ESP8266WiFi.h"
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#include "WiFiUdp.h"
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//this should be defined at build time
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#ifndef ARDUINO_BOARD
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#define ARDUINO_BOARD "generic"
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#endif
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class UdpContext;
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struct MDNSService;
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struct MDNSTxt;
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class MDNSResponder {
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public:
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MDNSResponder();
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~MDNSResponder();
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bool begin(const char* hostName);
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//for compatibility
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bool begin(const char* hostName, IPAddress ip, uint32_t ttl=120){
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return begin(hostName);
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}
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void update();
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void addService(char *service, char *proto, uint16_t port);
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void addService(const char *service, const char *proto, uint16_t port){
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addService((char *)service, (char *)proto, port);
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}
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void addService(String service, String proto, uint16_t port){
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addService(service.c_str(), proto.c_str(), port);
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}
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bool addServiceTxt(char *name, char *proto, char * key, char * value);
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void addServiceTxt(const char *name, const char *proto, const char *key,const char * value){
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addServiceTxt((char *)name, (char *)proto, (char *)key, (char *)value);
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}
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void addServiceTxt(String name, String proto, String key, String value){
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addServiceTxt(name.c_str(), proto.c_str(), key.c_str(), value.c_str());
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}
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void enableArduino(uint16_t port, bool auth=false);
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void setInstanceName(String name);
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void setInstanceName(const char * name){
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setInstanceName(String(name));
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}
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void setInstanceName(char * name){
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setInstanceName(String(name));
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}
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private:
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struct MDNSService * _services;
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UdpContext* _conn;
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String _hostName;
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String _instanceName;
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uint32_t _getOurIp();
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uint16_t _getServicePort(char *service, char *proto);
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MDNSTxt * _getServiceTxt(char *name, char *proto);
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uint16_t _getServiceTxtLen(char *name, char *proto);
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void _parsePacket();
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void _reply(uint8_t replyMask, char * service, char *proto, uint16_t port);
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size_t advertiseServices(); // advertise all hosted services
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};
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extern MDNSResponder MDNS;
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#endif //ESP8266MDNS_H
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