mirror of
https://github.com/eclipse/paho.mqtt-sn.embedded-c.git
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5fb4312aad
The purpose of this branch is to share work in process. Change sellect() of UDP to poll() Rewrite UDP6 for DTLS6 Known bug: can't reconnect DTLS Signed-off-by: tomoaki <tomoaki@tomy-tech.com>
122 lines
3.2 KiB
C++
122 lines
3.2 KiB
C++
/**************************************************************************************
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* Copyright (c) 2021, Tomoaki Yamaguchi
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*
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* and Eclipse Distribution License v1.0 which accompany this distribution.
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*
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* The Eclipse Public License is available at
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* http://www.eclipse.org/legal/epl-v10.html
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* and the Eclipse Distribution License is available at
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* http://www.eclipse.org/org/documents/edl-v10.php.
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*
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* Contributors:
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* Tomoaki Yamaguchi - initial API and implementation and/or initial documentation
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**************************************************************************************/
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#ifndef NETWORKDTLS6_H_
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#define NETWORKDTLS6_H_
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#ifdef DTLS6
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#include <sys/time.h>
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#include <iostream>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <netdb.h>
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#include <unistd.h>
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#include <string>
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#include <arpa/inet.h>
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#include <openssl/ssl.h>
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#include <openssl/err.h>
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#include <poll.h>
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#define SOCKET_MAXHOSTNAME 200
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#define SOCKET_MAXCONNECTIONS 5
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#define SOCKET_MAXRECV 500
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#define SOCKET_MAXBUFFER_LENGTH 500 // buffer size
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#define STAT_UNICAST 1
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#define STAT_MULTICAST 2
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#define STAT_SSL 3
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using namespace std;
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namespace linuxAsyncClient {
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/*========================================
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Class LDtls6Port
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=======================================*/
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class LDtls6Port
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{
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friend class LNetwork;
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public:
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LDtls6Port();
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virtual ~LDtls6Port();
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bool open(LUdp6Config* config);
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int unicast(const uint8_t *buf, uint32_t length);
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int multicast( const uint8_t* buf, uint32_t length );
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int recv(uint8_t* buf, uint16_t len, bool nonblock, in6_addr* ipaddress, in_port_t* port );
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int recv(uint8_t* buf, int flags);
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bool checkRecvBuf();
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bool isUnicast();
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SSL* getSSL(void);
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int sslConnect(in6_addr ipAddress, uint16_t port);
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private:
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void close();
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int recvfrom ( uint8_t* buf, uint16_t len, int flags, in6_addr* ipaddress, in_port_t* port );
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SSL_CTX *_ctx;
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SSL *_ssl;
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pollfd _pollfds[2];
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in_port_t _gPortNo;
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in_port_t _uPortNo;
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sockaddr_in6 _gIpAddr;
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char *_gIpAddrStr;
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uint32_t _ifIndex;
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string _interfaceName;
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uint8_t _castStat;
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int _sock;
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bool _disconReq;
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};
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#define NO_ERROR 0
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#define PACKET_EXCEEDS_LENGTH 1
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/*===========================================
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Class Network
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============================================*/
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class LNetwork: public LDtls6Port
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{
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public:
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LNetwork();
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~LNetwork();
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int broadcast(const uint8_t* payload, uint16_t payloadLen);
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int unicast(const uint8_t* payload, uint16_t payloadLen);
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void setGwAddress(void);
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void resetGwAddress(void);
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bool initialize(LUdp6Config* config);
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uint8_t* getMessage(int* len);
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bool isBroadcastable();
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int sslConnect(void);
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private:
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void setSleep();
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int readApiFrame(void);
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in6_addr _gwIpAddress;
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in6_addr _ipAddress;
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in_port_t _gwPortNo;
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in_port_t _portNo;
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int _returnCode;
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bool _sleepflg;
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uint8_t _rxDataBuf[MQTTSN_MAX_PACKET_SIZE + 1]; // defined in MqttsnClientApp.h
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};
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} /* end of namespace */
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#endif /* DTLS6 */
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#endif /* NETWORKDTLS6_H_ */
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