120 lines
3.1 KiB
C
120 lines
3.1 KiB
C
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/*******************************************************************************
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* Copyright (c) 2014, 2015 IBM Corp.
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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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* Allan Stockdill-Mander - initial API and implementation and/or initial documentation
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*******************************************************************************/
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#if !defined(MQTTFreeRTOS_H)
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#define MQTTFreeRTOS_H
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#include "freertos/FreeRTOS.h"
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#include "freertos/semphr.h"
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#include "freertos/task.h"
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#include "freertos/timers.h"
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#include "openssl/ssl.h"
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typedef struct Timer {
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portTickType xTicksToWait;
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xTimeOutType xTimeOut;
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} Timer;
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typedef struct Network Network;
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struct Network {
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int my_socket;
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int (*mqttread)(Network*, unsigned char*, unsigned int, unsigned int);
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int (*mqttwrite)(Network*, unsigned char*, unsigned int, unsigned int);
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void (*disconnect)(Network*);
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int read_count;
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SSL_CTX* ctx;
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SSL* ssl;
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};
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void TimerInit(Timer*);
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char TimerIsExpired(Timer*);
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void TimerCountdownMS(Timer*, unsigned int);
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void TimerCountdown(Timer*, unsigned int);
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int TimerLeftMS(Timer*);
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typedef struct Mutex {
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xSemaphoreHandle sem;
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} Mutex;
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void MutexInit(Mutex*);
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int MutexLock(Mutex*);
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int MutexUnlock(Mutex*);
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typedef struct Thread {
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xTaskHandle task;
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} Thread;
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int ThreadStart(Thread*, void (*fn)(void*), void* arg);
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/**
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* @brief Initialize the network structure
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*
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* @param m - network structure
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*
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* @return void
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*/
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void NetworkInit(Network*);
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/**
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* @brief connect with mqtt broker
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*
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* @param n - mqtt network struct
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* @param addr - mqtt broker address
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* @param port - mqtt broker port
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*
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* @return connect status
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*/
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int NetworkConnect(Network* n, char* addr, int port);
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typedef struct ssl_ca_crt_key {
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unsigned char* cacrt;
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unsigned int cacrt_len;
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unsigned char* cert;
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unsigned int cert_len;
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unsigned char* key;
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unsigned int key_len;
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} ssl_ca_crt_key_t;
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/**
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* @brief Initialize the network structure for SSL connection
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*
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* @param m - network structure
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*
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* @return void
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*/
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void NetworkInitSSL(Network* n);
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/**
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* @brief Use SSL to connect with mqtt broker
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*
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* @param n - mqtt network struct
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* @param addr - mqtt broker address
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* @param port - mqtt broker port
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* @param ssl_cck - client CA, certificate and private key
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* @param method - SSL context client method
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* @param verify_mode - SSL verifying mode
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* @param frag_len - SSL read buffer length
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*
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* @return connect status
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*/
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int NetworkConnectSSL(Network* n, char* addr, int port, ssl_ca_crt_key_t* ssl_cck, const SSL_METHOD* method, int verify_mode, unsigned int frag_len);
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/*int NetworkConnectTLS(Network*, char*, int, SlSockSecureFiles_t*, unsigned char, unsigned int, char);*/
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#endif
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