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Started adding in mqtt module from tuan

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pull/47/head
Benjamin Runnels 9 years ago
parent 059692dfad
commit f90bf5bb30
16 changed files with 1939 additions and 2 deletions
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  1. 2
      Makefile
  2. 15
      esp-link.vcxproj
  3. 38
      include/user_config.h
  4. 140
      mqtt/include/mqtt.h
  5. 129
      mqtt/include/mqtt_msg.h
  6. 31
      mqtt/include/proto.h
  7. 45
      mqtt/include/queue.h
  8. 18
      mqtt/include/ringbuf.h
  9. 17
      mqtt/include/typedef.h
  10. 9
      mqtt/include/utils.h
  11. 637
      mqtt/mqtt.c
  12. 471
      mqtt/mqtt_msg.c
  13. 128
      mqtt/proto.c
  14. 50
      mqtt/queue.c
  15. 67
      mqtt/ringbuf.c
  16. 144
      mqtt/utils.c

2
Makefile
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@ -142,7 +142,7 @@ TARGET = httpd
APPGEN_TOOL ?= gen_appbin.py
# which modules (subdirectories) of the project to include in compiling
MODULES = espfs httpd user serial cmd
MODULES = espfs httpd user serial cmd mqtt
EXTRA_INCDIR = include .
# libraries used in this project, mainly provided by the SDK

15
esp-link.vcxproj
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@ -28,7 +28,7 @@
<PropertyGroup>
<NMakeOutput />
<NMakePreprocessorDefinitions>__ets__;_STDINT_H;ICACHE_FLASH;__MINGW32__;__WIN32__</NMakePreprocessorDefinitions>
<NMakeIncludeSearchPath>.\cmd;.\serial;.\user;.\espfs;.\httpd;.\include;..\esp_iot_sdk_v1.3.0\include;..\xtensa-lx106-elf\xtensa-lx106-elf\include;c:\tools\mingw64\x86_64-w64-mingw32\include;c:\tools\mingw64\lib\gcc\x86_64-w64-mingw32\4.8.3\include</NMakeIncludeSearchPath>
<NMakeIncludeSearchPath>.\mqtt\include;.\cmd;.\serial;.\user;.\espfs;.\httpd;.\include;..\esp_iot_sdk_v1.3.0\include;..\xtensa-lx106-elf\xtensa-lx106-elf\include;c:\tools\mingw64\x86_64-w64-mingw32\include;c:\tools\mingw64\lib\gcc\x86_64-w64-mingw32\4.8.3\include</NMakeIncludeSearchPath>
<ExecutablePath />
<ReferencePath />
<LibraryPath />
@ -75,6 +75,12 @@
<ClCompile Include="httpd\base64.c" />
<ClCompile Include="httpd\httpd.c" />
<ClCompile Include="httpd\httpdespfs.c" />
<ClCompile Include="mqtt\mqtt.c" />
<ClCompile Include="mqtt\mqtt_msg.c" />
<ClCompile Include="mqtt\proto.c" />
<ClCompile Include="mqtt\queue.c" />
<ClCompile Include="mqtt\ringbuf.c" />
<ClCompile Include="mqtt\utils.c" />
<ClCompile Include="serial\console.c" />
<ClCompile Include="serial\crc16.c" />
<ClCompile Include="serial\serbridge.c" />
@ -106,6 +112,13 @@
<ClInclude Include="include\espmissingincludes.h" />
<ClInclude Include="include\uart_hw.h" />
<ClInclude Include="include\user_config.h" />
<ClInclude Include="mqtt\include\mqtt.h" />
<ClInclude Include="mqtt\include\mqtt_msg.h" />
<ClInclude Include="mqtt\include\proto.h" />
<ClInclude Include="mqtt\include\queue.h" />
<ClInclude Include="mqtt\include\ringbuf.h" />
<ClInclude Include="mqtt\include\typedef.h" />
<ClInclude Include="mqtt\include\utils.h" />
<ClInclude Include="serial\console.h" />
<ClInclude Include="serial\crc16.h" />
<ClInclude Include="serial\serbridge.h" />

38
include/user_config.h
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@ -1 +1,39 @@
#ifndef _USER_CONFIG_H_
#define _USER_CONFIG_H_
/*DEFAULT CONFIGURATIONS*/
#define MQTT_HOST "mqtt.yourdomain.com" //or "mqtt.yourdomain.com"
#define MQTT_PORT 1883
#define MQTT_BUF_SIZE 1024
#define MQTT_KEEPALIVE 120 /*second*/
#define MQTT_CLIENT_ID "H_%08X" //Cuidar para não colocar valores execendentes da ESTRUTURA SYSCFG
#define MQTT_USER "DVES_USER"
#define MQTT_PASS "DVES_PASS"
#define STA_SSID "TESTE"
#define STA_PASS "54545"
#define STA_TYPE AUTH_WPA2_PSK
#define MQTT_RECONNECT_TIMEOUT 5 /*second*/
#define DEFAULT_SECURITY 0
#define QUEUE_BUFFER_SIZE 2048
//#undef MCU_RESET_PIN
//#undef MCU_ISP_PIN
//#undef LED_CONN_PIN
//#undef LED_SERIAL_PIN
//
//#define MCU_RESET_PIN 2
//#define MCU_ISP_PIN -1
//#define LED_CONN_PIN -1
//#define LED_SERIAL_PIN -1
//#define BAUD_RATE 9600
//#define HOSTNAME "nodemcu\0 "
#define PROTOCOL_NAMEv31 /*MQTT version 3.1 compatible with Mosquitto v0.15*/
//PROTOCOL_NAMEv311 /*MQTT version 3.11 compatible with https://eclipse.org/paho/clients/testing/*/
#endif

140
mqtt/include/mqtt.h
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@ -0,0 +1,140 @@
/* mqtt.h
*
* Copyright (c) 2014-2015, Tuan PM <tuanpm at live dot com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Redis nor the names of its contributors may be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef USER_AT_MQTT_H_
#define USER_AT_MQTT_H_
#include <esp8266.h>
#include "mqtt_msg.h"
#include "queue.h"
#include "utils.h"
typedef struct mqtt_event_data_t
{
uint8_t type;
const char* topic;
const char* data;
uint16_t topic_length;
uint16_t data_length;
uint16_t data_offset;
} mqtt_event_data_t;
typedef struct mqtt_state_t
{
uint16_t port;
int auto_reconnect;
mqtt_connect_info_t* connect_info;
uint8_t* in_buffer;
uint8_t* out_buffer;
int in_buffer_length;
int out_buffer_length;
uint16_t message_length;
uint16_t message_length_read;
mqtt_message_t* outbound_message;
mqtt_connection_t mqtt_connection;
uint16_t pending_msg_id;
int pending_msg_type;
int pending_publish_qos;
} mqtt_state_t;
typedef enum {
WIFI_INIT,
WIFI_CONNECTING,
WIFI_CONNECTING_ERROR,
WIFI_CONNECTED,
DNS_RESOLVE,
TCP_DISCONNECTED,
TCP_RECONNECT_REQ,
TCP_RECONNECT,
TCP_CONNECTING,
TCP_CONNECTING_ERROR,
TCP_CONNECTED,
MQTT_CONNECT_SEND,
MQTT_CONNECT_SENDING,
MQTT_SUBSCIBE_SEND,
MQTT_SUBSCIBE_SENDING,
MQTT_DATA,
MQTT_PUBLISH_RECV,
MQTT_PUBLISHING
} tConnState;
typedef void (*MqttCallback)(uint32_t *args);
typedef void (*MqttDataCallback)(uint32_t *args, const char* topic, uint32_t topic_len, const char *data, uint32_t lengh);
typedef struct {
struct espconn *pCon;
uint8_t security;
uint8_t* host;
uint32_t port;
ip_addr_t ip;
mqtt_state_t mqtt_state;
mqtt_connect_info_t connect_info;
MqttCallback connectedCb;
MqttCallback disconnectedCb;
MqttCallback publishedCb;
MqttDataCallback dataCb;
ETSTimer mqttTimer;
uint32_t keepAliveTick;
uint32_t reconnectTick;
uint32_t sendTimeout;
tConnState connState;
QUEUE msgQueue;
void* user_data;
} MQTT_Client;
#define SEC_NONSSL 0
#define SEC_SSL 1
#define MQTT_FLAG_CONNECTED 1
#define MQTT_FLAG_READY 2
#define MQTT_FLAG_EXIT 4
#define MQTT_EVENT_TYPE_NONE 0
#define MQTT_EVENT_TYPE_CONNECTED 1
#define MQTT_EVENT_TYPE_DISCONNECTED 2
#define MQTT_EVENT_TYPE_SUBSCRIBED 3
#define MQTT_EVENT_TYPE_UNSUBSCRIBED 4
#define MQTT_EVENT_TYPE_PUBLISH 5
#define MQTT_EVENT_TYPE_PUBLISHED 6
#define MQTT_EVENT_TYPE_EXITED 7
#define MQTT_EVENT_TYPE_PUBLISH_CONTINUATION 8
void ICACHE_FLASH_ATTR MQTT_InitConnection(MQTT_Client *mqttClient, uint8_t* host, uint32 port, uint8_t security);
void ICACHE_FLASH_ATTR MQTT_InitClient(MQTT_Client *mqttClient, uint8_t* client_id, uint8_t* client_user, uint8_t* client_pass, uint32_t keepAliveTime, uint8_t cleanSession);
void ICACHE_FLASH_ATTR MQTT_InitLWT(MQTT_Client *mqttClient, uint8_t* will_topic, uint8_t* will_msg, uint8_t will_qos, uint8_t will_retain);
void ICACHE_FLASH_ATTR MQTT_OnConnected(MQTT_Client *mqttClient, MqttCallback connectedCb);
void ICACHE_FLASH_ATTR MQTT_OnDisconnected(MQTT_Client *mqttClient, MqttCallback disconnectedCb);
void ICACHE_FLASH_ATTR MQTT_OnPublished(MQTT_Client *mqttClient, MqttCallback publishedCb);
void ICACHE_FLASH_ATTR MQTT_OnData(MQTT_Client *mqttClient, MqttDataCallback dataCb);
bool ICACHE_FLASH_ATTR MQTT_Subscribe(MQTT_Client *client, char* topic, uint8_t qos);
void ICACHE_FLASH_ATTR MQTT_Connect(MQTT_Client *mqttClient);
void ICACHE_FLASH_ATTR MQTT_Disconnect(MQTT_Client *mqttClient);
bool ICACHE_FLASH_ATTR MQTT_Publish(MQTT_Client *client, const char* topic, const char* data, int qos, int retain);
#endif /* USER_AT_MQTT_H_ */

129
mqtt/include/mqtt_msg.h
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/*
* File: mqtt_msg.h
* Author: Minh Tuan
*
* Created on July 12, 2014, 1:05 PM
*/
#ifndef MQTT_MSG_H
#define MQTT_MSG_H
#include <esp8266.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Copyright (c) 2014, Stephen Robinson
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*/
/* 7 6 5 4 3 2 1 0*/
/* | --- Message Type ---- | DUP Flag | QoS Level | Retain | Remaining Length | */
enum mqtt_message_type
{
MQTT_MSG_TYPE_CONNECT = 1,
MQTT_MSG_TYPE_CONNACK = 2,
MQTT_MSG_TYPE_PUBLISH = 3,
MQTT_MSG_TYPE_PUBACK = 4,
MQTT_MSG_TYPE_PUBREC = 5,
MQTT_MSG_TYPE_PUBREL = 6,
MQTT_MSG_TYPE_PUBCOMP = 7,
MQTT_MSG_TYPE_SUBSCRIBE = 8,
MQTT_MSG_TYPE_SUBACK = 9,
MQTT_MSG_TYPE_UNSUBSCRIBE = 10,
MQTT_MSG_TYPE_UNSUBACK = 11,
MQTT_MSG_TYPE_PINGREQ = 12,
MQTT_MSG_TYPE_PINGRESP = 13,
MQTT_MSG_TYPE_DISCONNECT = 14
};
typedef struct mqtt_message
{
uint8_t* data;
uint16_t length;
} mqtt_message_t;
typedef struct mqtt_connection
{
mqtt_message_t message;
uint16_t message_id;
uint8_t* buffer;
uint16_t buffer_length;
} mqtt_connection_t;
typedef struct mqtt_connect_info
{
char* client_id;
char* username;
char* password;
char* will_topic;
char* will_message;
int keepalive;
int will_qos;
int will_retain;
int clean_session;
} mqtt_connect_info_t;
static inline int ICACHE_FLASH_ATTR mqtt_get_type(uint8_t* buffer) { return (buffer[0] & 0xf0) >> 4; }
static inline int ICACHE_FLASH_ATTR mqtt_get_dup(uint8_t* buffer) { return (buffer[0] & 0x08) >> 3; }
static inline int ICACHE_FLASH_ATTR mqtt_get_qos(uint8_t* buffer) { return (buffer[0] & 0x06) >> 1; }
static inline int ICACHE_FLASH_ATTR mqtt_get_retain(uint8_t* buffer) { return (buffer[0] & 0x01); }
void ICACHE_FLASH_ATTR mqtt_msg_init(mqtt_connection_t* connection, uint8_t* buffer, uint16_t buffer_length);
int ICACHE_FLASH_ATTR mqtt_get_total_length(uint8_t* buffer, uint16_t length);
const char* ICACHE_FLASH_ATTR mqtt_get_publish_topic(uint8_t* buffer, uint16_t* length);
const char* ICACHE_FLASH_ATTR mqtt_get_publish_data(uint8_t* buffer, uint16_t* length);
uint16_t ICACHE_FLASH_ATTR mqtt_get_id(uint8_t* buffer, uint16_t length);
mqtt_message_t* ICACHE_FLASH_ATTR mqtt_msg_connect(mqtt_connection_t* connection, mqtt_connect_info_t* info);
mqtt_message_t* ICACHE_FLASH_ATTR mqtt_msg_publish(mqtt_connection_t* connection, const char* topic, const char* data, int data_length, int qos, int retain, uint16_t* message_id);
mqtt_message_t* ICACHE_FLASH_ATTR mqtt_msg_puback(mqtt_connection_t* connection, uint16_t message_id);
mqtt_message_t* ICACHE_FLASH_ATTR mqtt_msg_pubrec(mqtt_connection_t* connection, uint16_t message_id);
mqtt_message_t* ICACHE_FLASH_ATTR mqtt_msg_pubrel(mqtt_connection_t* connection, uint16_t message_id);
mqtt_message_t* ICACHE_FLASH_ATTR mqtt_msg_pubcomp(mqtt_connection_t* connection, uint16_t message_id);
mqtt_message_t* ICACHE_FLASH_ATTR mqtt_msg_subscribe(mqtt_connection_t* connection, const char* topic, int qos, uint16_t* message_id);
mqtt_message_t* ICACHE_FLASH_ATTR mqtt_msg_unsubscribe(mqtt_connection_t* connection, const char* topic, uint16_t* message_id);
mqtt_message_t* ICACHE_FLASH_ATTR mqtt_msg_pingreq(mqtt_connection_t* connection);
mqtt_message_t* ICACHE_FLASH_ATTR mqtt_msg_pingresp(mqtt_connection_t* connection);
mqtt_message_t* ICACHE_FLASH_ATTR mqtt_msg_disconnect(mqtt_connection_t* connection);
#ifdef __cplusplus
}
#endif
#endif /* MQTT_MSG_H */

31
mqtt/include/proto.h
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/*
* File: proto.h
* Author: ThuHien
*
* Created on November 23, 2012, 8:57 AM
*/
#ifndef _PROTO_H_
#define _PROTO_H_
#include <esp8266.h>
#include "ringbuf.h"
typedef void(PROTO_PARSE_CALLBACK)();
typedef struct{
uint8_t *buf;
uint16_t bufSize;
uint16_t dataLen;
uint8_t isEsc;
uint8_t isBegin;
PROTO_PARSE_CALLBACK* callback;
}PROTO_PARSER;
int8_t ICACHE_FLASH_ATTR PROTO_Init(PROTO_PARSER *parser, PROTO_PARSE_CALLBACK *completeCallback, uint8_t *buf, uint16_t bufSize);
int8_t ICACHE_FLASH_ATTR PROTO_Parse(PROTO_PARSER *parser, uint8_t *buf, uint16_t len);
int16_t ICACHE_FLASH_ATTR PROTO_Add(uint8_t *buf, const uint8_t *packet, int16_t bufSize);
int16_t ICACHE_FLASH_ATTR PROTO_AddRb(RINGBUF *rb, const uint8_t *packet, int16_t len);
int8_t ICACHE_FLASH_ATTR PROTO_ParseByte(PROTO_PARSER *parser, uint8_t value);
int16_t ICACHE_FLASH_ATTR PROTO_ParseRb(RINGBUF *rb, uint8_t *bufOut, uint16_t* len, uint16_t maxBufLen);
#endif

45
mqtt/include/queue.h
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/* str_queue.h --
*
* Copyright (c) 2014-2015, Tuan PM <tuanpm at live dot com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Redis nor the names of its contributors may be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef USER_QUEUE_H_
#define USER_QUEUE_H_
#include <esp8266.h>
#include "proto.h"
#include "ringbuf.h"
typedef struct {
uint8_t *buf;
RINGBUF rb;
} QUEUE;
void ICACHE_FLASH_ATTR QUEUE_Init(QUEUE *queue, int bufferSize);
int32_t ICACHE_FLASH_ATTR QUEUE_Puts(QUEUE *queue, uint8_t* buffer, uint16_t len);
int32_t ICACHE_FLASH_ATTR QUEUE_Gets(QUEUE *queue, uint8_t* buffer, uint16_t* len, uint16_t maxLen);
bool ICACHE_FLASH_ATTR QUEUE_IsEmpty(QUEUE *queue);
#endif /* USER_QUEUE_H_ */

18
mqtt/include/ringbuf.h
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#ifndef _RING_BUF_H_
#define _RING_BUF_H_
#include <esp8266.h>
#include "typedef.h"
typedef struct{
U8* p_o; /**< Original pointer */
U8* volatile p_r; /**< Read pointer */
U8* volatile p_w; /**< Write pointer */
volatile I32 fill_cnt; /**< Number of filled slots */
I32 size; /**< Buffer size */
}RINGBUF;
I16 ICACHE_FLASH_ATTR RINGBUF_Init(RINGBUF *r, U8* buf, I32 size);
I16 ICACHE_FLASH_ATTR RINGBUF_Put(RINGBUF *r, U8 c);
I16 ICACHE_FLASH_ATTR RINGBUF_Get(RINGBUF *r, U8* c);
#endif

17
mqtt/include/typedef.h
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/**
* \file
* Standard Types definition
*/
#ifndef _TYPE_DEF_H_
#define _TYPE_DEF_H_
typedef char I8;
typedef unsigned char U8;
typedef short I16;
typedef unsigned short U16;
typedef long I32;
typedef unsigned long U32;
typedef unsigned long long U64;
#endif

9
mqtt/include/utils.h
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#ifndef _UTILS_H_
#define _UTILS_H_
#include <esp8266.h>
uint32_t ICACHE_FLASH_ATTR UTILS_Atoh(const int8_t *s);
uint8_t ICACHE_FLASH_ATTR UTILS_StrToIP(const int8_t* str, void *ip);
uint8_t ICACHE_FLASH_ATTR UTILS_IsIPV4 (int8_t *str);
#endif

637
mqtt/mqtt.c
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/* mqtt.c
* Protocol: http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html
*
* Copyright (c) 2014-2015, Tuan PM <tuanpm at live dot com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Redis nor the names of its contributors may be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "mqtt.h"
#define MQTT_TASK_PRIO 0
#define MQTT_TASK_QUEUE_SIZE 1
#define MQTT_SEND_TIMOUT 5
#ifndef QUEUE_BUFFER_SIZE
#define QUEUE_BUFFER_SIZE 2048
#endif
unsigned char *default_certificate;
unsigned int default_certificate_len = 0;
unsigned char *default_private_key;
unsigned int default_private_key_len = 0;
os_event_t mqtt_procTaskQueue[MQTT_TASK_QUEUE_SIZE];
LOCAL void ICACHE_FLASH_ATTR
mqtt_dns_found(const char *name, ip_addr_t *ipaddr, void *arg)
{
struct espconn *pConn = (struct espconn *)arg;
MQTT_Client* client = (MQTT_Client *)pConn->reverse;
if (ipaddr == NULL)
{
os_printf("DNS: Found, but got no ip, try to reconnect\n");
client->connState = TCP_RECONNECT_REQ;
return;
}
os_printf("DNS: found ip %d.%d.%d.%d\n",
*((uint8 *)&ipaddr->addr),
*((uint8 *)&ipaddr->addr + 1),
*((uint8 *)&ipaddr->addr + 2),
*((uint8 *)&ipaddr->addr + 3));
if (client->ip.addr == 0 && ipaddr->addr != 0)
{
os_memcpy(client->pCon->proto.tcp->remote_ip, &ipaddr->addr, 4);
#ifdef CLIENT_SSL_ENABLE
if (client->security){
espconn_secure_connect(client->pCon);
}
else
#endif
espconn_connect(client->pCon);
client->connState = TCP_CONNECTING;
os_printf("MQTT-TCP: connecting...\n");
}
system_os_post(MQTT_TASK_PRIO, 0, (os_param_t)client);
}
LOCAL void ICACHE_FLASH_ATTR
deliver_publish(MQTT_Client* client, uint8_t* message, int length)
{
mqtt_event_data_t event_data;
event_data.topic_length = length;
event_data.topic = mqtt_get_publish_topic(message, &event_data.topic_length);
event_data.data_length = length;
event_data.data = mqtt_get_publish_data(message, &event_data.data_length);
if (client->dataCb)
client->dataCb((uint32_t*)client, event_data.topic, event_data.topic_length, event_data.data, event_data.data_length);
}
/**
* @brief Client received callback function.
* @param arg: contain the ip link information
* @param pdata: received data
* @param len: the lenght of received data
* @retval None
*/
void ICACHE_FLASH_ATTR
mqtt_tcpclient_recv(void *arg, char *pdata, unsigned short len)
{
uint8_t msg_type;
uint8_t msg_qos;
uint16_t msg_id;
struct espconn *pCon = (struct espconn*)arg;
MQTT_Client *client = (MQTT_Client *)pCon->reverse;
READPACKET:
os_printf("MQTT-TCP: Data received %d bytes\n", len);
if (len < MQTT_BUF_SIZE && len > 0){
os_memcpy(client->mqtt_state.in_buffer, pdata, len);
msg_type = mqtt_get_type(client->mqtt_state.in_buffer);
msg_qos = mqtt_get_qos(client->mqtt_state.in_buffer);
msg_id = mqtt_get_id(client->mqtt_state.in_buffer, client->mqtt_state.in_buffer_length);
if (client->connState == MQTT_CONNECT_SENDING) {
if (msg_type == MQTT_MSG_TYPE_CONNACK){
if (client->mqtt_state.pending_msg_type != MQTT_MSG_TYPE_CONNECT){
os_printf("MQTT: Invalid packet\n");
#ifdef CLIENT_SSL_ENABLE
if (client->security){
espconn_secure_disconnect(client->pCon);
}
else
#endif
espconn_disconnect(client->pCon);
}
else {
os_printf("MQTT: Connected to %s:%ld\n", client->host, client->port);
client->connState = MQTT_DATA;
if (client->connectedCb)
client->connectedCb((uint32_t*)client);
}
}
}
else if (client->connState == MQTT_DATA) {
client->mqtt_state.message_length_read = len;
client->mqtt_state.message_length = mqtt_get_total_length(client->mqtt_state.in_buffer, client->mqtt_state.message_length_read);
if (msg_type == MQTT_MSG_TYPE_SUBACK) {
if (client->mqtt_state.pending_msg_type == MQTT_MSG_TYPE_SUBSCRIBE && client->mqtt_state.pending_msg_id == msg_id)
os_printf("MQTT: Subscribe successful\n");
}
else if (msg_type == MQTT_MSG_TYPE_UNSUBACK){
if (client->mqtt_state.pending_msg_type == MQTT_MSG_TYPE_UNSUBSCRIBE && client->mqtt_state.pending_msg_id == msg_id)
os_printf("MQTT: UnSubscribe successful\n");
}
else if (msg_type == MQTT_MSG_TYPE_PUBLISH) {
if (msg_qos == 1)
client->mqtt_state.outbound_message = mqtt_msg_puback(&client->mqtt_state.mqtt_connection, msg_id);
else if (msg_qos == 2)
client->mqtt_state.outbound_message = mqtt_msg_pubrec(&client->mqtt_state.mqtt_connection, msg_id);
if (msg_qos == 1 || msg_qos == 2){
os_printf("MQTT: Queue response QoS: %d\n", msg_qos);
if (QUEUE_Puts(&client->msgQueue, client->mqtt_state.outbound_message->data, client->mqtt_state.outbound_message->length) == -1){
os_printf("MQTT: Queue full\n");
}
}
deliver_publish(client, client->mqtt_state.in_buffer, client->mqtt_state.message_length_read);
}
else if (msg_type == MQTT_MSG_TYPE_PUBACK) {
if (client->mqtt_state.pending_msg_type == MQTT_MSG_TYPE_PUBLISH && client->mqtt_state.pending_msg_id == msg_id){
os_printf("MQTT: received MQTT_MSG_TYPE_PUBACK, finish QoS1 publish\n");
}
}
else if (msg_type == MQTT_MSG_TYPE_PUBREC) {
client->mqtt_state.outbound_message = mqtt_msg_pubrel(&client->mqtt_state.mqtt_connection, msg_id);
if (QUEUE_Puts(&client->msgQueue, client->mqtt_state.outbound_message->data, client->mqtt_state.outbound_message->length) == -1){
os_printf("MQTT: Queue full\n");
}
}
else if (msg_type == MQTT_MSG_TYPE_PUBREL) {
client->mqtt_state.outbound_message = mqtt_msg_pubcomp(&client->mqtt_state.mqtt_connection, msg_id);
if (QUEUE_Puts(&client->msgQueue, client->mqtt_state.outbound_message->data, client->mqtt_state.outbound_message->length) == -1){
os_printf("MQTT: Queue full\n");
}
}
else if (msg_type == MQTT_MSG_TYPE_PUBCOMP) {
if (client->mqtt_state.pending_msg_type == MQTT_MSG_TYPE_PUBLISH && client->mqtt_state.pending_msg_id == msg_id){
os_printf("MQTT: receive MQTT_MSG_TYPE_PUBCOMP, finish QoS2 publish\n");
}
}
else if (msg_type == MQTT_MSG_TYPE_PINGREQ) {
client->mqtt_state.outbound_message = mqtt_msg_pingresp(&client->mqtt_state.mqtt_connection);
if (QUEUE_Puts(&client->msgQueue, client->mqtt_state.outbound_message->data, client->mqtt_state.outbound_message->length) == -1){
os_printf("MQTT: Queue full\n");
}
}
// NOTE: this is done down here and not in the switch case above
// because the PSOCK_READBUF_LEN() won't work inside a switch
// statement due to the way protothreads resume.
if (msg_type == MQTT_MSG_TYPE_PUBLISH)
{
len = client->mqtt_state.message_length_read;
if (client->mqtt_state.message_length < client->mqtt_state.message_length_read)
{
//client->connState = MQTT_PUBLISH_RECV;
//Not Implement yet
len -= client->mqtt_state.message_length;
pdata += client->mqtt_state.message_length;
os_printf("Get another published message\n");
goto READPACKET;
}
}
}
}
else {
os_printf("ERROR: Message too long\n");
}
system_os_post(MQTT_TASK_PRIO, 0, (os_param_t)client);
}
/**
* @brief Client send over callback function.
* @param arg: contain the ip link information
* @retval None
*/
void ICACHE_FLASH_ATTR
mqtt_tcpclient_sent_cb(void *arg)
{
struct espconn *pCon = (struct espconn *)arg;
MQTT_Client* client = (MQTT_Client *)pCon->reverse;
os_printf("MQTT-TCP: Sent\n");
client->sendTimeout = 0;
if (client->connState == MQTT_DATA && client->mqtt_state.pending_msg_type == MQTT_MSG_TYPE_PUBLISH){
if (client->publishedCb)
client->publishedCb((uint32_t*)client);
}
system_os_post(MQTT_TASK_PRIO, 0, (os_param_t)client);
}
void ICACHE_FLASH_ATTR mqtt_timer(void *arg)
{
MQTT_Client* client = (MQTT_Client*)arg;
if (client->connState == MQTT_DATA){
client->keepAliveTick++;
if (client->keepAliveTick > client->mqtt_state.connect_info->keepalive){
os_printf("\nMQTT: Send keepalive packet to %s:%ld!\n", client->host, client->port);
client->mqtt_state.outbound_message = mqtt_msg_pingreq(&client->mqtt_state.mqtt_connection);
client->mqtt_state.pending_msg_type = MQTT_MSG_TYPE_PINGREQ;
client->mqtt_state.pending_msg_type = mqtt_get_type(client->mqtt_state.outbound_message->data);
client->mqtt_state.pending_msg_id = mqtt_get_id(client->mqtt_state.outbound_message->data, client->mqtt_state.outbound_message->length);
client->sendTimeout = MQTT_SEND_TIMOUT;
os_printf("MQTT: Sending, type: %d, id: %04X\n", client->mqtt_state.pending_msg_type, client->mqtt_state.pending_msg_id);
#ifdef CLIENT_SSL_ENABLE
if (client->security){
espconn_secure_sent(client->pCon, client->mqtt_state.outbound_message->data, client->mqtt_state.outbound_message->length);
}
else
#endif
espconn_sent(client->pCon, client->mqtt_state.outbound_message->data, client->mqtt_state.outbound_message->length);
client->mqtt_state.outbound_message = NULL;
client->keepAliveTick = 0;
system_os_post(MQTT_TASK_PRIO, 0, (os_param_t)client);
}
}
else if (client->connState == TCP_RECONNECT_REQ){
client->reconnectTick++;
if (client->reconnectTick > MQTT_RECONNECT_TIMEOUT) {
client->reconnectTick = 0;
client->connState = TCP_RECONNECT;
system_os_post(MQTT_TASK_PRIO, 0, (os_param_t)client);
}
}
if (client->sendTimeout > 0)
client->sendTimeout--;
}
void ICACHE_FLASH_ATTR
mqtt_tcpclient_discon_cb(void *arg)
{
struct espconn *pespconn = (struct espconn *)arg;
MQTT_Client* client = (MQTT_Client *)pespconn->reverse;
os_printf("MQTT-TCP: Disconnected callback\n");
client->connState = TCP_RECONNECT_REQ;
if (client->disconnectedCb)
client->disconnectedCb((uint32_t*)client);
system_os_post(MQTT_TASK_PRIO, 0, (os_param_t)client);
}
/**
* @brief Tcp client connect success callback function.
* @param arg: contain the ip link information
* @retval None
*/
void ICACHE_FLASH_ATTR
mqtt_tcpclient_connect_cb(void *arg)
{
struct espconn *pCon = (struct espconn *)arg;
MQTT_Client* client = (MQTT_Client *)pCon->reverse;
espconn_regist_disconcb(client->pCon, mqtt_tcpclient_discon_cb);
espconn_regist_recvcb(client->pCon, mqtt_tcpclient_recv);////////
espconn_regist_sentcb(client->pCon, mqtt_tcpclient_sent_cb);///////
os_printf("MQTT: Connected to broker %s:%ld\n", client->host, client->port);
mqtt_msg_init(&client->mqtt_state.mqtt_connection, client->mqtt_state.out_buffer, client->mqtt_state.out_buffer_length);
client->mqtt_state.outbound_message = mqtt_msg_connect(&client->mqtt_state.mqtt_connection, client->mqtt_state.connect_info);
client->mqtt_state.pending_msg_type = mqtt_get_type(client->mqtt_state.outbound_message->data);
client->mqtt_state.pending_msg_id = mqtt_get_id(client->mqtt_state.outbound_message->data, client->mqtt_state.outbound_message->length);
client->sendTimeout = MQTT_SEND_TIMOUT;
os_printf("MQTT: Sending, type: %d, id: %04X\n", client->mqtt_state.pending_msg_type, client->mqtt_state.pending_msg_id);
#ifdef CLIENT_SSL_ENABLE
if (client->security){
espconn_secure_sent(client->pCon, client->mqtt_state.outbound_message->data, client->mqtt_state.outbound_message->length);
}
else
#endif
espconn_sent(client->pCon, client->mqtt_state.outbound_message->data, client->mqtt_state.outbound_message->length);
client->mqtt_state.outbound_message = NULL;
client->connState = MQTT_CONNECT_SENDING;
system_os_post(MQTT_TASK_PRIO, 0, (os_param_t)client);
}
/**
* @brief Tcp client connect repeat callback function.
* @param arg: contain the ip link information
* @retval None
*/
void ICACHE_FLASH_ATTR
mqtt_tcpclient_recon_cb(void *arg, sint8 errType)
{
struct espconn *pCon = (struct espconn *)arg;
MQTT_Client* client = (MQTT_Client *)pCon->reverse;
os_printf("MQTT-TCP: Reconnect to %s:%ld\n", client->host, client->port);
client->connState = TCP_RECONNECT_REQ;
system_os_post(MQTT_TASK_PRIO, 0, (os_param_t)client);
}
/**
* @brief MQTT publish function.
* @param client: MQTT_Client reference
* @param topic: string topic will publish to
* @param data: buffer data send point to
* @param data_length: length of data
* @param qos: qos
* @param retain: retain
* @retval TRUE if success queue
*/
bool ICACHE_FLASH_ATTR
MQTT_Publish(MQTT_Client *client, const char* topic, const char* data, int qos, int retain)
{
int data_length = os_strlen(data);
uint8_t dataBuffer[MQTT_BUF_SIZE];
uint16_t dataLen;
client->mqtt_state.outbound_message = mqtt_msg_publish(&client->mqtt_state.mqtt_connection,
topic, data, data_length,
qos, retain,
&client->mqtt_state.pending_msg_id);
if (client->mqtt_state.outbound_message->length == 0){
os_printf("MQTT: Queuing Publish failed\n");
return FALSE;
}
os_printf("MQTT: Queuing Publish, length: %d, queue size(%ld/%ld)\n", client->mqtt_state.outbound_message->length, client->msgQueue.rb.fill_cnt, client->msgQueue.rb.size);
while (QUEUE_Puts(&client->msgQueue, client->mqtt_state.outbound_message->data, client->mqtt_state.outbound_message->length) == -1){
os_printf("MQTT: Queue full\n");
if (QUEUE_Gets(&client->msgQueue, dataBuffer, &dataLen, MQTT_BUF_SIZE) == -1) {
os_printf("MQTT: Serious buffer error\n");
return FALSE;
}
}
system_os_post(MQTT_TASK_PRIO, 0, (os_param_t)client);
return TRUE;
}
/**
* @brief MQTT subscibe function.
* @param client: MQTT_Client reference
* @param topic: string topic will subscribe
* @param qos: qos
* @retval TRUE if success queue
*/
bool ICACHE_FLASH_ATTR
MQTT_Subscribe(MQTT_Client *client, char* topic, uint8_t qos)
{
uint8_t dataBuffer[MQTT_BUF_SIZE];
uint16_t dataLen;
client->mqtt_state.outbound_message = mqtt_msg_subscribe(&client->mqtt_state.mqtt_connection,
topic, 0,
&client->mqtt_state.pending_msg_id);
os_printf("MQTT: Queue Subscribe, topic: \"%s\", id: %d\n", topic, client->mqtt_state.pending_msg_id);
while (QUEUE_Puts(&client->msgQueue, client->mqtt_state.outbound_message->data, client->mqtt_state.outbound_message->length) == -1){
os_printf("MQTT: Queue full\n");
if (QUEUE_Gets(&client->msgQueue, dataBuffer, &dataLen, MQTT_BUF_SIZE) == -1) {
os_printf("MQTT: Serious buffer error\n");
return FALSE;
}
}
system_os_post(MQTT_TASK_PRIO, 0, (os_param_t)client);
return TRUE;
}
void ICACHE_FLASH_ATTR MQTT_Task(os_event_t *e) {
MQTT_Client* client = (MQTT_Client*)e->par;
uint8_t dataBuffer[MQTT_BUF_SIZE];
uint16_t dataLen;
if (e->par == 0)
return;
if (client->connState == TCP_RECONNECT_REQ) {
return;
}
else if (client->connState == TCP_RECONNECT){
MQTT_Connect(client);
os_printf("MQTT-TCP: Reconnect to: %s:%ld\n", client->host, client->port);
client->connState = TCP_CONNECTING;
}
else if (client->connState == MQTT_DATA) {
if (QUEUE_IsEmpty(&client->msgQueue) || client->sendTimeout != 0)
return;
if (QUEUE_Gets(&client->msgQueue, dataBuffer, &dataLen, MQTT_BUF_SIZE) == 0){
client->mqtt_state.pending_msg_type = mqtt_get_type(dataBuffer);
client->mqtt_state.pending_msg_id = mqtt_get_id(dataBuffer, dataLen);
client->sendTimeout = MQTT_SEND_TIMOUT;
os_printf("MQTT: Sending, type: %d, id: %04X\n", client->mqtt_state.pending_msg_type, client->mqtt_state.pending_msg_id);
#ifdef CLIENT_SSL_ENABLE
if (client->security){
espconn_secure_sent(client->pCon, dataBuffer, dataLen);
}
else
#endif
espconn_sent(client->pCon, dataBuffer, dataLen);
client->mqtt_state.outbound_message = NULL;
return;
}
return;
}
}
/**
* @brief MQTT initialization connection function
* @param client: MQTT_Client reference
* @param host: Domain or IP string
* @param port: Port to connect
* @param security: 1 for ssl, 0 for none
* @retval None
*/
void ICACHE_FLASH_ATTR
MQTT_InitConnection(MQTT_Client *mqttClient, uint8_t* host, uint32 port, uint8_t security)
{
uint32_t temp;
os_printf("MQTT_InitConnection\n");
os_memset(mqttClient, 0, sizeof(MQTT_Client));
temp = sizeof((char*)host);
mqttClient->host = (uint8_t*)os_zalloc(temp + 1);
os_strcpy((char*)mqttClient->host, (char*)host);
mqttClient->host[temp] = 0;
mqttClient->port = port;
mqttClient->security = security;
}
/**
* @brief MQTT initialization mqtt client function
* @param client: MQTT_Client reference
* @param clientid: MQTT client id
* @param client_user:MQTT client user
* @param client_pass:MQTT client password
* @param client_pass:MQTT keep alive timer, in second
* @retval None
*/
void ICACHE_FLASH_ATTR
MQTT_InitClient(MQTT_Client *mqttClient, uint8_t* client_id, uint8_t* client_user, uint8_t* client_pass, uint32_t keepAliveTime, uint8_t cleanSession)
{
uint32_t temp;
os_printf("MQTT_InitClient\n");
os_memset(&mqttClient->connect_info, 0, sizeof(mqtt_connect_info_t));
temp = os_strlen((char*)client_id);
mqttClient->connect_info.client_id = (char*)os_zalloc(temp + 1);
os_strcpy((char*)mqttClient->connect_info.client_id, (char*)client_id);
mqttClient->connect_info.client_id[temp] = 0;
temp = os_strlen((char*)client_user);
mqttClient->connect_info.username = (char*)os_zalloc(temp + 1);
os_strcpy((char*)mqttClient->connect_info.username, (char*)client_user);
mqttClient->connect_info.username[temp] = 0;
temp = os_strlen((char*)client_pass);
mqttClient->connect_info.password = (char*)os_zalloc(temp + 1);
os_strcpy((char*)mqttClient->connect_info.password, (char*)client_pass);
mqttClient->connect_info.password[temp] = 0;
mqttClient->connect_info.keepalive = keepAliveTime;
mqttClient->connect_info.clean_session = cleanSession;
mqttClient->mqtt_state.in_buffer = (uint8_t *)os_zalloc(MQTT_BUF_SIZE);
mqttClient->mqtt_state.in_buffer_length = MQTT_BUF_SIZE;
mqttClient->mqtt_state.out_buffer = (uint8_t *)os_zalloc(MQTT_BUF_SIZE);
mqttClient->mqtt_state.out_buffer_length = MQTT_BUF_SIZE;
mqttClient->mqtt_state.connect_info = &mqttClient->connect_info;
mqtt_msg_init(&mqttClient->mqtt_state.mqtt_connection, mqttClient->mqtt_state.out_buffer, mqttClient->mqtt_state.out_buffer_length);
QUEUE_Init(&mqttClient->msgQueue, QUEUE_BUFFER_SIZE);
system_os_task(MQTT_Task, MQTT_TASK_PRIO, mqtt_procTaskQueue, MQTT_TASK_QUEUE_SIZE);
system_os_post(MQTT_TASK_PRIO, 0, (os_param_t)mqttClient);
}
void ICACHE_FLASH_ATTR
MQTT_InitLWT(MQTT_Client *mqttClient, uint8_t* will_topic, uint8_t* will_msg, uint8_t will_qos, uint8_t will_retain)
{
uint32_t temp;
temp = os_strlen((char*)will_topic);
mqttClient->connect_info.will_topic = (char*)os_zalloc(temp + 1);
os_strcpy((char*)mqttClient->connect_info.will_topic, (char*)will_topic);
mqttClient->connect_info.will_topic[temp] = 0;
temp = os_strlen((char*)will_msg);
mqttClient->connect_info.will_message = (char*)os_zalloc(temp + 1);
os_strcpy((char*)mqttClient->connect_info.will_message, (char*)will_msg);
mqttClient->connect_info.will_message[temp] = 0;
mqttClient->connect_info.will_qos = will_qos;
mqttClient->connect_info.will_retain = will_retain;
}
/**
* @brief Begin connect to MQTT broker
* @param client: MQTT_Client reference
* @retval None
*/
void ICACHE_FLASH_ATTR
MQTT_Connect(MQTT_Client *mqttClient)
{
MQTT_Disconnect(mqttClient);
mqttClient->pCon = (struct espconn *)os_zalloc(sizeof(struct espconn));
mqttClient->pCon->type = ESPCONN_TCP;
mqttClient->pCon->state = ESPCONN_NONE;
mqttClient->pCon->proto.tcp = (esp_tcp *)os_zalloc(sizeof(esp_tcp));
mqttClient->pCon->proto.tcp->local_port = espconn_port();
mqttClient->pCon->proto.tcp->remote_port = mqttClient->port;
mqttClient->pCon->reverse = mqttClient;
espconn_regist_connectcb(mqttClient->pCon, mqtt_tcpclient_connect_cb);
espconn_regist_reconcb(mqttClient->pCon, mqtt_tcpclient_recon_cb);
mqttClient->keepAliveTick = 0;
mqttClient->reconnectTick = 0;
os_timer_disarm(&mqttClient->mqttTimer);
os_timer_setfn(&mqttClient->mqttTimer, (os_timer_func_t *)mqtt_timer, mqttClient);
os_timer_arm(&mqttClient->mqttTimer, 1000, 1);
if (UTILS_StrToIP((const int8_t *)mqttClient->host, (void*)&mqttClient->pCon->proto.tcp->remote_ip)) {
os_printf("MQTT-TCP: Connect to ip %s:%ld\n", mqttClient->host, mqttClient->port);
#ifdef CLIENT_SSL_ENABLE
if (mqttClient->security){
espconn_secure_connect(mqttClient->pCon);
}
else
#endif
espconn_connect(mqttClient->pCon);
}
else {
os_printf("MQTT-TCP: Connect to domain %s:%ld\n", mqttClient->host, mqttClient->port);
espconn_gethostbyname(mqttClient->pCon, (const char *)mqttClient->host, &mqttClient->ip, mqtt_dns_found);
}
mqttClient->connState = TCP_CONNECTING;
}
void ICACHE_FLASH_ATTR
MQTT_Disconnect(MQTT_Client *mqttClient)
{
if (mqttClient->pCon){
os_printf("Free memory\n");
if (mqttClient->pCon->proto.tcp)
os_free(mqttClient->pCon->proto.tcp);
os_free(mqttClient->pCon);
mqttClient->pCon = NULL;
}
os_timer_disarm(&mqttClient->mqttTimer);
}
void ICACHE_FLASH_ATTR
MQTT_OnConnected(MQTT_Client *mqttClient, MqttCallback connectedCb)
{
mqttClient->connectedCb = connectedCb;
}
void ICACHE_FLASH_ATTR
MQTT_OnDisconnected(MQTT_Client *mqttClient, MqttCallback disconnectedCb)
{
mqttClient->disconnectedCb = disconnectedCb;
}
void ICACHE_FLASH_ATTR
MQTT_OnData(MQTT_Client *mqttClient, MqttDataCallback dataCb)
{
mqttClient->dataCb = dataCb;
}
void ICACHE_FLASH_ATTR
MQTT_OnPublished(MQTT_Client *mqttClient, MqttCallback publishedCb)
{
mqttClient->publishedCb = publishedCb;
}

471
mqtt/mqtt_msg.c
Unescape View File

@ -0,0 +1,471 @@
/*
* Copyright (c) 2014, Stephen Robinson
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*/
#include "mqtt_msg.h"
#define MQTT_MAX_FIXED_HEADER_SIZE 3
enum mqtt_connect_flag
{
MQTT_CONNECT_FLAG_USERNAME = 1 << 7,
MQTT_CONNECT_FLAG_PASSWORD = 1 << 6,
MQTT_CONNECT_FLAG_WILL_RETAIN = 1 << 5,
MQTT_CONNECT_FLAG_WILL = 1 << 2,
MQTT_CONNECT_FLAG_CLEAN_SESSION = 1 << 1
};
struct __attribute__((__packed__)) mqtt_connect_variable_header
{
uint8_t lengthMsb;
uint8_t lengthLsb;
#if defined(PROTOCOL_NAMEv31)
uint8_t magic[6];
#elif defined(PROTOCOL_NAMEv311)
uint8_t magic[4];
#else
#error "Please define protocol name"
#endif
uint8_t version;
uint8_t flags;
uint8_t keepaliveMsb;
uint8_t keepaliveLsb;
};
static int ICACHE_FLASH_ATTR append_string(mqtt_connection_t* connection, const char* string, int len)
{
if (connection->message.length + len + 2 > connection->buffer_length)
return -1;
connection->buffer[connection->message.length++] = len >> 8;
connection->buffer[connection->message.length++] = len & 0xff;
memcpy(connection->buffer + connection->message.length, string, len);
connection->message.length += len;
return len + 2;
}
static uint16_t ICACHE_FLASH_ATTR append_message_id(mqtt_connection_t* connection, uint16_t message_id)
{
// If message_id is zero then we should assign one, otherwise
// we'll use the one supplied by the caller
while (message_id == 0)
message_id = ++connection->message_id;
if (connection->message.length + 2 > connection->buffer_length)
return 0;
connection->buffer[connection->message.length++] = message_id >> 8;
connection->buffer[connection->message.length++] = message_id & 0xff;
return message_id;
}
static int ICACHE_FLASH_ATTR init_message(mqtt_connection_t* connection)
{
connection->message.length = MQTT_MAX_FIXED_HEADER_SIZE;
return MQTT_MAX_FIXED_HEADER_SIZE;
}
static mqtt_message_t* ICACHE_FLASH_ATTR fail_message(mqtt_connection_t* connection)
{
connection->message.data = connection->buffer;
connection->message.length = 0;
return &connection->message;
}
static mqtt_message_t* ICACHE_FLASH_ATTR fini_message(mqtt_connection_t* connection, int type, int dup, int qos, int retain)
{
int remaining_length = connection->message.length - MQTT_MAX_FIXED_HEADER_SIZE;
if (remaining_length > 127)
{
connection->buffer[0] = ((type & 0x0f) << 4) | ((dup & 1) << 3) | ((qos & 3) << 1) | (retain & 1);
connection->buffer[1] = 0x80 | (remaining_length % 128);
connection->buffer[2] = remaining_length / 128;
connection->message.length = remaining_length + 3;
connection->message.data = connection->buffer;
}
else
{
connection->buffer[1] = ((type & 0x0f) << 4) | ((dup & 1) << 3) | ((qos & 3) << 1) | (retain & 1);
connection->buffer[2] = remaining_length;
connection->message.length = remaining_length + 2;
connection->message.data = connection->buffer + 1;
}
return &connection->message;
}
void ICACHE_FLASH_ATTR
mqtt_msg_init(mqtt_connection_t* connection, uint8_t* buffer, uint16_t buffer_length) {
memset(connection, 0, sizeof(connection));
connection->buffer = buffer;
connection->buffer_length = buffer_length;
}
int ICACHE_FLASH_ATTR mqtt_get_total_length(uint8_t* buffer, uint16_t length)
{
int i;
int totlen = 0;
for (i = 1; i < length; ++i)
{
totlen += (buffer[i] & 0x7f) << (7 * (i - 1));
if ((buffer[i] & 0x80) == 0)
{
++i;
break;
}
}
totlen += i;
return totlen;
}
const char* ICACHE_FLASH_ATTR mqtt_get_publish_topic(uint8_t* buffer, uint16_t* length)
{
int i;
int totlen = 0;
int topiclen;
for (i = 1; i < *length; ++i)
{
totlen += (buffer[i] & 0x7f) << (7 * (i - 1));
if ((buffer[i] & 0x80) == 0)
{
++i;
break;
}
}
totlen += i;
if (i + 2 >= *length)
return NULL;
topiclen = buffer[i++] << 8;
topiclen |= buffer[i++];
if (i + topiclen > *length)
return NULL;
*length = topiclen;
return (const char*)(buffer + i);
}
const char* ICACHE_FLASH_ATTR mqtt_get_publish_data(uint8_t* buffer, uint16_t* length)
{
int i;
int totlen = 0;
int topiclen;
for (i = 1; i < *length; ++i)
{
totlen += (buffer[i] & 0x7f) << (7 * (i - 1));
if ((buffer[i] & 0x80) == 0)
{
++i;
break;
}
}
totlen += i;
if (i + 2 >= *length)
return NULL;
topiclen = buffer[i++] << 8;
topiclen |= buffer[i++];
if (i + topiclen >= *length){
*length = 0;
return NULL;
}
i += topiclen;
if (mqtt_get_qos(buffer) > 0)
{
if (i + 2 >= *length)
return NULL;
i += 2;
}
if (totlen < i)
return NULL;
if (totlen <= *length)
*length = totlen - i;
else
*length = *length - i;
return (const char*)(buffer + i);
}
uint16_t ICACHE_FLASH_ATTR mqtt_get_id(uint8_t* buffer, uint16_t length)
{
if (length < 1)
return 0;
switch (mqtt_get_type(buffer))
{
case MQTT_MSG_TYPE_PUBLISH:
{
int i;
int topiclen;
for (i = 1; i < length; ++i)
{
if ((buffer[i] & 0x80) == 0)
{
++i;
break;
}
}
if (i + 2 >= length)
return 0;
topiclen = buffer[i++] << 8;
topiclen |= buffer[i++];
if (i + topiclen >= length)
return 0;
i += topiclen;
if (mqtt_get_qos(buffer) > 0)
{
if (i + 2 >= length)
return 0;
//i += 2;
}
else {
return 0;
}
return (buffer[i] << 8) | buffer[i + 1];
}
case MQTT_MSG_TYPE_PUBACK:
case MQTT_MSG_TYPE_PUBREC:
case MQTT_MSG_TYPE_PUBREL:
case MQTT_MSG_TYPE_PUBCOMP:
case MQTT_MSG_TYPE_SUBACK:
case MQTT_MSG_TYPE_UNSUBACK:
case MQTT_MSG_TYPE_SUBSCRIBE:
{
// This requires the remaining length to be encoded in 1 byte,
// which it should be.
if (length >= 4 && (buffer[1] & 0x80) == 0)
return (buffer[2] << 8) | buffer[3];
else
return 0;
}
default:
return 0;
}
}
mqtt_message_t* ICACHE_FLASH_ATTR mqtt_msg_connect(mqtt_connection_t* connection, mqtt_connect_info_t* info)
{
struct mqtt_connect_variable_header* variable_header;
init_message(connection);
if (connection->message.length + sizeof(*variable_header) > connection->buffer_length)
return fail_message(connection);
variable_header = (void*)(connection->buffer + connection->message.length);
connection->message.length += sizeof(*variable_header);
variable_header->lengthMsb = 0;
#if defined(PROTOCOL_NAMEv31)
variable_header->lengthLsb = 6;
memcpy(variable_header->magic, "MQIsdp", 6);
variable_header->version = 3;
#elif defined(PROTOCOL_NAMEv311)
variable_header->lengthLsb = 4;
memcpy(variable_header->magic, "MQTT", 4);
variable_header->version = 4;
#else
#error "Please define protocol name"
#endif
variable_header->flags = 0;
variable_header->keepaliveMsb = info->keepalive >> 8;
variable_header->keepaliveLsb = info->keepalive & 0xff;
if (info->clean_session)
variable_header->flags |= MQTT_CONNECT_FLAG_CLEAN_SESSION;
if (info->client_id != NULL && info->client_id[0] != '\0')
{
if (append_string(connection, info->client_id, strlen(info->client_id)) < 0)
return fail_message(connection);
}
else
return fail_message(connection);
if (info->will_topic != NULL && info->will_topic[0] != '\0')
{
if (append_string(connection, info->will_topic, strlen(info->will_topic)) < 0)
return fail_message(connection);
if (append_string(connection, info->will_message, strlen(info->will_message)) < 0)
return fail_message(connection);
variable_header->flags |= MQTT_CONNECT_FLAG_WILL;
if (info->will_retain)
variable_header->flags |= MQTT_CONNECT_FLAG_WILL_RETAIN;
variable_header->flags |= (info->will_qos & 3) << 3;
}
if (info->username != NULL && info->username[0] != '\0')
{
if (append_string(connection, info->username, strlen(info->username)) < 0)
return fail_message(connection);
variable_header->flags |= MQTT_CONNECT_FLAG_USERNAME;
}
if (info->password != NULL && info->password[0] != '\0')
{
if (append_string(connection, info->password, strlen(info->password)) < 0)
return fail_message(connection);
variable_header->flags |= MQTT_CONNECT_FLAG_PASSWORD;
}
return fini_message(connection, MQTT_MSG_TYPE_CONNECT, 0, 0, 0);
}
mqtt_message_t* ICACHE_FLASH_ATTR mqtt_msg_publish(mqtt_connection_t* connection, const char* topic, const char* data, int data_length, int qos, int retain, uint16_t* message_id)
{
init_message(connection);
if (topic == NULL || topic[0] == '\0')
return fail_message(connection);
if (append_string(connection, topic, strlen(topic)) < 0)
return fail_message(connection);
if (qos > 0)
{
if ((*message_id = append_message_id(connection, 0)) == 0)
return fail_message(connection);
}
else
*message_id = 0;
if (connection->message.length + data_length > connection->buffer_length)
return fail_message(connection);
memcpy(connection->buffer + connection->message.length, data, data_length);
connection->message.length += data_length;
return fini_message(connection, MQTT_MSG_TYPE_PUBLISH, 0, qos, retain);
}
mqtt_message_t* ICACHE_FLASH_ATTR mqtt_msg_puback(mqtt_connection_t* connection, uint16_t message_id)
{
init_message(connection);
if (append_message_id(connection, message_id) == 0)
return fail_message(connection);
return fini_message(connection, MQTT_MSG_TYPE_PUBACK, 0, 0, 0);
}
mqtt_message_t* ICACHE_FLASH_ATTR mqtt_msg_pubrec(mqtt_connection_t* connection, uint16_t message_id)
{
init_message(connection);
if (append_message_id(connection, message_id) == 0)
return fail_message(connection);
return fini_message(connection, MQTT_MSG_TYPE_PUBREC, 0, 0, 0);
}
mqtt_message_t* ICACHE_FLASH_ATTR mqtt_msg_pubrel(mqtt_connection_t* connection, uint16_t message_id)
{
init_message(connection);
if (append_message_id(connection, message_id) == 0)
return fail_message(connection);
return fini_message(connection, MQTT_MSG_TYPE_PUBREL, 0, 1, 0);
}
mqtt_message_t* ICACHE_FLASH_ATTR mqtt_msg_pubcomp(mqtt_connection_t* connection, uint16_t message_id)
{
init_message(connection);
if (append_message_id(connection, message_id) == 0)
return fail_message(connection);
return fini_message(connection, MQTT_MSG_TYPE_PUBCOMP, 0, 0, 0);
}
mqtt_message_t* ICACHE_FLASH_ATTR mqtt_msg_subscribe(mqtt_connection_t* connection, const char* topic, int qos, uint16_t* message_id)
{
init_message(connection);
if (topic == NULL || topic[0] == '\0')
return fail_message(connection);
if ((*message_id = append_message_id(connection, 0)) == 0)
return fail_message(connection);
if (append_string(connection, topic, strlen(topic)) < 0)
return fail_message(connection);
if (connection->message.length + 1 > connection->buffer_length)
return fail_message(connection);
connection->buffer[connection->message.length++] = qos;
return fini_message(connection, MQTT_MSG_TYPE_SUBSCRIBE, 0, 1, 0);
}
mqtt_message_t* ICACHE_FLASH_ATTR mqtt_msg_unsubscribe(mqtt_connection_t* connection, const char* topic, uint16_t* message_id)
{
init_message(connection);
if (topic == NULL || topic[0] == '\0')
return fail_message(connection);
if ((*message_id = append_message_id(connection, 0)) == 0)
return fail_message(connection);
if (append_string(connection, topic, strlen(topic)) < 0)
return fail_message(connection);
return fini_message(connection, MQTT_MSG_TYPE_UNSUBSCRIBE, 0, 1, 0);
}
mqtt_message_t* ICACHE_FLASH_ATTR mqtt_msg_pingreq(mqtt_connection_t* connection)
{
init_message(connection);
return fini_message(connection, MQTT_MSG_TYPE_PINGREQ, 0, 0, 0);
}
mqtt_message_t* ICACHE_FLASH_ATTR mqtt_msg_pingresp(mqtt_connection_t* connection)
{
init_message(connection);
return fini_message(connection, MQTT_MSG_TYPE_PINGRESP, 0, 0, 0);
}
mqtt_message_t* ICACHE_FLASH_ATTR mqtt_msg_disconnect(mqtt_connection_t* connection)
{
init_message(connection);
return fini_message(connection, MQTT_MSG_TYPE_DISCONNECT, 0, 0, 0);
}

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mqtt/proto.c
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#include "proto.h"
int8_t ICACHE_FLASH_ATTR PROTO_Init(PROTO_PARSER *parser, PROTO_PARSE_CALLBACK *completeCallback, uint8_t *buf, uint16_t bufSize)
{
parser->buf = buf;
parser->bufSize = bufSize;
parser->dataLen = 0;
parser->callback = completeCallback;
parser->isEsc = 0;
return 0;
}
int8_t ICACHE_FLASH_ATTR PROTO_ParseByte(PROTO_PARSER *parser, uint8_t value)
{
switch(value){
case 0x7D:
parser->isEsc = 1;
break;
case 0x7E:
parser->dataLen = 0;
parser->isEsc = 0;
parser->isBegin = 1;
break;
case 0x7F:
if (parser->callback != NULL)
parser->callback();
parser->isBegin = 0;
return 0;
break;
default:
if(parser->isBegin == 0) break;
if(parser->isEsc){
value ^= 0x20;
parser->isEsc = 0;
}
if(parser->dataLen < parser->bufSize)
parser->buf[parser->dataLen++] = value;
break;
}
return -1;
}
int8_t ICACHE_FLASH_ATTR PROTO_Parse(PROTO_PARSER *parser, uint8_t *buf, uint16_t len)
{
while(len--)
PROTO_ParseByte(parser, *buf++);
return 0;
}
int16_t ICACHE_FLASH_ATTR PROTO_ParseRb(RINGBUF* rb, uint8_t *bufOut, uint16_t* len, uint16_t maxBufLen)
{
uint8_t c;
PROTO_PARSER proto;
PROTO_Init(&proto, NULL, bufOut, maxBufLen);
while(RINGBUF_Get(rb, &c) == 0){
if(PROTO_ParseByte(&proto, c) == 0){
*len = proto.dataLen;
return 0;
}
}
return -1;
}
int16_t ICACHE_FLASH_ATTR PROTO_Add(uint8_t *buf, const uint8_t *packet, int16_t bufSize)
{
uint16_t i = 2;
uint16_t len = *(uint16_t*) packet;
if (bufSize < 1) return -1;
*buf++ = 0x7E;
bufSize--;
while (len--) {
switch (*packet) {
case 0x7D:
case 0x7E:
case 0x7F:
if (bufSize < 2) return -1;
*buf++ = 0x7D;
*buf++ = *packet++ ^ 0x20;
i += 2;
bufSize -= 2;
break;
default:
if (bufSize < 1) return -1;
*buf++ = *packet++;
i++;
bufSize--;
break;
}
}
if (bufSize < 1) return -1;
*buf++ = 0x7F;
return i;
}
int16_t ICACHE_FLASH_ATTR PROTO_AddRb(RINGBUF *rb, const uint8_t *packet, int16_t len)
{
uint16_t i = 2;
if(RINGBUF_Put(rb, 0x7E) == -1) return -1;
while (len--) {
switch (*packet) {
case 0x7D:
case 0x7E:
case 0x7F:
if(RINGBUF_Put(rb, 0x7D) == -1) return -1;
if(RINGBUF_Put(rb, *packet++ ^ 0x20) == -1) return -1;
i += 2;
break;
default:
if(RINGBUF_Put(rb, *packet++) == -1) return -1;
i++;
break;
}
}
if(RINGBUF_Put(rb, 0x7F) == -1) return -1;
return i;
}

50
mqtt/queue.c
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/* str_queue.c
*
* Copyright (c) 2014-2015, Tuan PM <tuanpm at live dot com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Redis nor the names of its contributors may be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "queue.h"
void ICACHE_FLASH_ATTR QUEUE_Init(QUEUE *queue, int bufferSize) {
queue->buf = (uint8_t*)os_zalloc(bufferSize);
RINGBUF_Init(&queue->rb, queue->buf, bufferSize);
}
int32_t ICACHE_FLASH_ATTR QUEUE_Puts(QUEUE *queue, uint8_t* buffer, uint16_t len) {
return PROTO_AddRb(&queue->rb, buffer, len);
}
int32_t ICACHE_FLASH_ATTR QUEUE_Gets(QUEUE *queue, uint8_t* buffer, uint16_t* len, uint16_t maxLen) {
return PROTO_ParseRb(&queue->rb, buffer, len, maxLen);
}
bool ICACHE_FLASH_ATTR QUEUE_IsEmpty(QUEUE *queue) {
if (queue->rb.fill_cnt <= 0)
return TRUE;
return FALSE;
}

67
mqtt/ringbuf.c
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/**
* \file
* Ring Buffer library
*/
#include "ringbuf.h"
/**
* \brief init a RINGBUF object
* \param r pointer to a RINGBUF object
* \param buf pointer to a byte array
* \param size size of buf
* \return 0 if successfull, otherwise failed
*/
I16 ICACHE_FLASH_ATTR RINGBUF_Init(RINGBUF *r, U8* buf, I32 size)
{
if(r == NULL || buf == NULL || size < 2) return -1;
r->p_o = r->p_r = r->p_w = buf;
r->fill_cnt = 0;
r->size = size;
return 0;
}
/**
* \brief put a character into ring buffer
* \param r pointer to a ringbuf object
* \param c character to be put
* \return 0 if successfull, otherwise failed
*/
I16 ICACHE_FLASH_ATTR RINGBUF_Put(RINGBUF *r, U8 c)
{
if(r->fill_cnt>=r->size)return -1; // ring buffer is full, this should be atomic operation
r->fill_cnt++; // increase filled slots count, this should be atomic operation
*r->p_w++ = c; // put character into buffer
if(r->p_w >= r->p_o + r->size) // rollback if write pointer go pass
r->p_w = r->p_o; // the physical boundary
return 0;
}
/**
* \brief get a character from ring buffer
* \param r pointer to a ringbuf object
* \param c read character
* \return 0 if successfull, otherwise failed
*/
I16 ICACHE_FLASH_ATTR RINGBUF_Get(RINGBUF *r, U8* c)
{
if(r->fill_cnt<=0)return -1; // ring buffer is empty, this should be atomic operation
r->fill_cnt--; // decrease filled slots count
*c = *r->p_r++; // get the character out
if(r->p_r >= r->p_o + r->size) // rollback if write pointer go pass
r->p_r = r->p_o; // the physical boundary
return 0;
}

144
mqtt/utils.c
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/*
* Copyright (c) 2014, Tuan PM
* Email: tuanpm@live.com
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*/
#include "utils.h"
uint8_t ICACHE_FLASH_ATTR UTILS_IsIPV4 (int8_t *str)
{
uint8_t segs = 0; /* Segment count. */
uint8_t chcnt = 0; /* Character count within segment. */
uint8_t accum = 0; /* Accumulator for segment. */
/* Catch NULL pointer. */
if (str == 0)
return 0;
/* Process every character in string. */
while (*str != '\0') {
/* Segment changeover. */
if (*str == '.') {
/* Must have some digits in segment. */
if (chcnt == 0)
return 0;
/* Limit number of segments. */
if (++segs == 4)
return 0;
/* Reset segment values and restart loop. */
chcnt = accum = 0;
str++;
continue;
}
/* Check numeric. */
if ((*str < '0') || (*str > '9'))
return 0;
/* Accumulate and check segment. */
if ((accum = accum * 10 + *str - '0') > 255)
return 0;
/* Advance other segment specific stuff and continue loop. */
chcnt++;
str++;
}
/* Check enough segments and enough characters in last segment. */
if (segs != 3)
return 0;
if (chcnt == 0)
return 0;
/* Address okay. */
return 1;
}
uint8_t ICACHE_FLASH_ATTR UTILS_StrToIP(const int8_t* str, void *ip)
{
/* The count of the number of bytes processed. */
int i;
/* A pointer to the next digit to process. */
const char * start;
start = str;
for (i = 0; i < 4; i++) {
/* The digit being processed. */
char c;
/* The value of this byte. */
int n = 0;
while (1) {
c = * start;
start++;
if (c >= '0' && c <= '9') {
n *= 10;
n += c - '0';
}
/* We insist on stopping at "." if we are still parsing
the first, second, or third numbers. If we have reached
the end of the numbers, we will allow any character. */
else if ((i < 3 && c == '.') || i == 3) {
break;
}
else {
return 0;
}
}
if (n >= 256) {
return 0;
}
((uint8_t*)ip)[i] = n;
}
return 1;
}
uint32_t ICACHE_FLASH_ATTR UTILS_Atoh(const int8_t *s)
{
uint32_t value = 0, digit;
int8_t c;
while((c = *s++)){
if('0' <= c && c <= '9')
digit = c - '0';
else if('A' <= c && c <= 'F')
digit = c - 'A' + 10;
else if('a' <= c && c<= 'f')
digit = c - 'a' + 10;
else break;
value = (value << 4) | digit;
}
return value;
}
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