gateway_message.c 10 KB

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  1. #include "string.h"
  2. #include <stdlib.h>
  3. #include "protocol.h"
  4. #include "malloc.h"
  5. #include "gateway_message.h"
  6. GATEWAY_PARAMS gateway_config_params = {0};
  7. GATEWAY_PARAMS *get_gateway_config_params()
  8. {
  9. return &gateway_config_params;
  10. }
  11. void parseStringField(const char *data, const char *field, char *value);
  12. int parseIntField(const char *data, const char *field);
  13. void addNode(char *nodestring);
  14. void addDevice(char *string, NODE_PARAMS *node);
  15. int extract_substring(const char *input_string, const char *start_token, const char *end_token, char *result);
  16. void addSensorListParams(char *paramString, DEVICE_PARAMS *device);
  17. /**
  18. * @brief 解析输入字符串网关结构体信息,将数据保存
  19. * @param char *nodestring 输入字符串的数据
  20. * @retval 无
  21. */
  22. void addGatewayParams(char *gatewayString)
  23. {
  24. parseStringField(gatewayString, "\"commandTopic\":\"", (char *)&gateway_config_params.commandTopic);
  25. parseStringField(gatewayString, "\"messageTopic\":\"", (char *)&gateway_config_params.messageTopic);
  26. parseStringField(gatewayString, "\"deviceId\":\"", (char *)&gateway_config_params.deviceId);
  27. parseStringField(gatewayString, "\"host\":\"", (char *)&gateway_config_params.host);
  28. gateway_config_params.port = parseIntField(gatewayString, "\"port\":");
  29. gateway_config_params.node_params=NULL;
  30. gateway_config_params.pollTime = parseIntField(gatewayString, "\"pollTime\":");
  31. uint8_t nodeIndex = 1;
  32. char nodeStart[6];
  33. char nodeEnd[6];
  34. char *nodeString=mymalloc(SRAMEX,5*1024);
  35. while (1)
  36. {
  37. sprintf(nodeStart,"node_%d",nodeIndex);
  38. sprintf(nodeEnd,"node_%d",nodeIndex+1);
  39. if(extract_substring(gatewayString,nodeStart,nodeEnd,nodeString))
  40. {
  41. addNode(nodeString);
  42. nodeIndex++;
  43. }
  44. else
  45. {
  46. break;
  47. }
  48. }
  49. myfree(SRAMEX,nodeString);
  50. GATEWAY_PARAMS *get=get_gateway_config_params();
  51. GATEWAY_PARAMS *set=get_gateway_config_params();
  52. }
  53. /**
  54. * @brief 解析输入的字符串节点信息,并将此节点信息挂载在网关结构体的节点下面
  55. * @param char *nodestring
  56. * @retval 无
  57. 注:node内包含的设备名称device_1在别的节点下也可能包含,所以在解析节点时要先将数据截取出来让匹配不会越界到别的节点
  58. */
  59. void addNode(char *nodestring)
  60. {
  61. // 新增一个节点的设备并解析最外层的节点属性
  62. char *deviceString = (char *)nodestring; // 用于移位解析device设备信息
  63. NODE_PARAMS *newNode=mymalloc(SRAMIN,sizeof(NODE_PARAMS));
  64. newNode->device_params = NULL; // 先将其设备挂载为NULL
  65. newNode->nextNode = NULL; // 下一个设备的挂载为NULL
  66. parseStringField(nodestring, "\"nodeId\":\"", (char *)&newNode->node_address);
  67. newNode->RFFrequency = parseIntField(nodestring, "\"RFFrequency\":");
  68. newNode->SignalBw = parseIntField(nodestring, "\"SignalBw\":");
  69. newNode->SpreadingFactor = parseIntField(nodestring, "\"SpreadingFactor\":");
  70. newNode->ErrorCoding = parseIntField(nodestring, "\"ErrorCoding\":");
  71. uint8_t deviceIndex = 1;
  72. char *device=mymalloc(SRAMIN,20);
  73. while (1)
  74. {
  75. sprintf(device, "\"device_%d\":", deviceIndex);
  76. // 判断内部是否包含node_num有就不断的++,
  77. char *deviceString = strstr(nodestring, device);
  78. if (deviceString)
  79. {
  80. addDevice(deviceString, newNode); // 往此节点下挂载设备信息
  81. deviceIndex++;
  82. }
  83. else
  84. {
  85. break;
  86. }
  87. /* code */
  88. }
  89. myfree(SRAMIN,device);
  90. // 添加节点到网关链表中
  91. if (gateway_config_params.node_params == NULL)
  92. {
  93. gateway_config_params.node_params = newNode;
  94. }
  95. else
  96. {
  97. NODE_PARAMS *current = gateway_config_params.node_params;
  98. while (current->nextNode != NULL)
  99. {
  100. current = current->nextNode;
  101. }
  102. current->nextNode = newNode;
  103. }
  104. }
  105. /**
  106. * @brief 解析输入字段的字符串,解析出属于该节点下的设备信息
  107. * @param uint8_t *string输入的字符串数据,NODE_PARAMS *node节点信息
  108. * @retval 无
  109. */
  110. void addDevice(char *deviceString, NODE_PARAMS *node)
  111. {
  112. char *paramString=(char *)deviceString; //属性指针
  113. // 创建新设备页
  114. DEVICE_PARAMS *newDevicePage = (DEVICE_PARAMS *)malloc(sizeof(DEVICE_PARAMS));
  115. newDevicePage->nextDevice = NULL;
  116. parseStringField(deviceString, "\"deviceId\":\"", (char *)&newDevicePage->deviceID);
  117. newDevicePage->protocol = parseIntField(deviceString, "\"protocol\":");
  118. newDevicePage->params = malloc(sizeof(PARAMS_PROTOCOL_COMMAND));
  119. paramString=strstr(paramString,"\"sensorList\":["); //找到该节点的轮询上发属性
  120. while(1) //此处数据是以数组形式存储所以解析方法和上面不一样
  121. {
  122. addSensorListParams(paramString,newDevicePage); //解析一个属性并挂载该属性于该属性下
  123. paramString=strstr(paramString,"}"); //移动到下一条属性
  124. paramString++;
  125. if(paramString[0]==']')
  126. {
  127. paramString=(char *)deviceString; //复原指针位置
  128. break; //找到了结束符,跳出循环
  129. }
  130. }
  131. //解析下发的mqtt存储信息下发控制指令
  132. if(newDevicePage->protocol==MODBUS)
  133. {
  134. paramString=strstr(paramString,"\"commandList\":[");
  135. while(1)
  136. {
  137. }
  138. }
  139. // 添加设备页到链表末尾
  140. if (node->device_params == NULL)
  141. {
  142. node->device_params = newDevicePage;
  143. }
  144. else
  145. {
  146. DEVICE_PARAMS *current = node->device_params;
  147. while (current->nextDevice != NULL)
  148. {
  149. current = current->nextDevice;
  150. }
  151. current->nextDevice = newDevicePage;
  152. }
  153. }
  154. /**
  155. * @brief 解析输入字符串的paramString数据,将数据保存到至该设备结构体下,此处解析sensorList
  156. * @param uint8_t *paramString输入的字符串数据,DEVICE_PARAMS *device节点信息
  157. * @retval 无
  158. */
  159. void addSensorListParams(char *paramString, DEVICE_PARAMS *device)
  160. {
  161. switch (device->protocol)
  162. {
  163. case DLT645_97:
  164. case DLT645_07:
  165. NODE_READ_DLT645_COMMAND *read_dlt645_command = malloc(sizeof(NODE_READ_DLT645_COMMAND));
  166. read_dlt645_command->Identification = parseIntField(paramString, "\"identifier645\":");
  167. parseStringField(paramString, "\"identifier\":\"", (char *)&read_dlt645_command->keyword);
  168. if (device->params->node_read_dlt645_command == NULL)
  169. {
  170. device->params->node_read_dlt645_command= read_dlt645_command;
  171. }
  172. else
  173. {
  174. PARAMS_PROTOCOL_COMMAND *current= device->params;
  175. while (current->nextParams->node_read_modbus_command!= NULL)
  176. {
  177. current = current->nextParams;
  178. }
  179. current->nextParams->node_read_dlt645_command = read_dlt645_command;
  180. }
  181. break;
  182. case MODBUS:
  183. NODE_READ_MODBUS_COMMAND *read_modbus_command = malloc(sizeof(NODE_READ_MODBUS_COMMAND));
  184. read_modbus_command->bigLittleFormat = parseIntField(paramString, "\"bigLittleFormat\":");
  185. read_modbus_command->dataType = parseIntField(paramString, "\"dataType\":");
  186. read_modbus_command->decimalPoint = parseIntField(paramString, "\"precise\":");
  187. read_modbus_command->functionCode = parseIntField(paramString, "\"rFunctionCode\":");
  188. read_modbus_command->slaveAddress = parseIntField(paramString, "\"slaveAddress\":");
  189. read_modbus_command->registerAddress = parseIntField(paramString, "\"registerAddress\":");
  190. read_modbus_command->registerByteNum = parseIntField(paramString, "\"registerByteNum\":");
  191. if (device->params->node_read_dlt645_command == NULL)
  192. {
  193. device->params->node_read_dlt645_command= read_dlt645_command;
  194. }
  195. else
  196. {
  197. PARAMS_PROTOCOL_COMMAND *current= device->params;
  198. while (current->nextParams!= NULL)
  199. {
  200. current = current->nextParams;
  201. }
  202. current->nextParams->node_read_dlt645_command = read_dlt645_command;
  203. }
  204. break;
  205. default:
  206. break;
  207. }
  208. }
  209. /**
  210. * @brief 解析输入字符串的paramString数据,将数据保存到至该设备结构体下,此处解析commandList
  211. * @param uint8_t *paramString输入的字符串数据,DEVICE_PARAMS *device节点信息
  212. * @retval 无
  213. */
  214. void addCommandListParams(char *paramString, DEVICE_PARAMS *device)
  215. {
  216. }
  217. // 提取int数据
  218. int parseIntField(const char *data, const char *field)
  219. {
  220. char *ptr = strstr(data, field) + strlen(field);
  221. int value;
  222. value = strtol(ptr, &ptr, 10);
  223. return value;
  224. }
  225. // 提取string字符串
  226. void parseStringField(const char *data, const char *field, char *value)
  227. {
  228. char *ptr = strstr(data, field) + strlen(field);
  229. sscanf(ptr, "%[^\"],", value);
  230. }
  231. // 不采用json解析硬解json数据
  232. void processStringJson(uint8_t *data)
  233. {
  234. GATEWAY_PARAMS *gateway;
  235. gateway = get_gateway_config_params();
  236. uint8_t *ptr = (uint8_t *)data;
  237. parseStringField((char *)&ptr, "\"messageTopic\":\"", (char *)&gateway->messageTopic);
  238. parseStringField((char *)&ptr, "\"commandTopic\":\"", (char *)&gateway->commandTopic);
  239. gateway->port = parseIntField((char *)&ptr, "\"port\":\"");
  240. parseStringField((char *)&ptr, "\"host\":\"", (char *)&gateway->host);
  241. parseStringField((char *)&ptr, "\"deviceId\":\"", (char *)&gateway->deviceId);
  242. // 解析最外层数据完成,申请空间存储节点信息
  243. int nodeNum = 1;
  244. char *node_index = malloc(10);
  245. sprintf(node_index, "node_%d", nodeNum);
  246. strstr(ptr, node_index); // 将指针指向第一个节点
  247. while (*ptr == NULL)
  248. {
  249. }
  250. free(node_index);
  251. }
  252. /**
  253. * @brief 从输入的input_string中寻找开始到结束位置的字符串数据,并将数据截取出来,传给result;
  254. * @param input_string输入字符串,start_token字符串起始位置,end_token字符串结束位置,result截取出的字符串
  255. * @retval 0:没有被截取到的字符串。1:有被截取到的字符串。
  256. */
  257. int extract_substring(const char *input_string, const char *start_token, const char *end_token, char *result) {
  258. const char *start_ptr = strstr(input_string, start_token);
  259. if (start_ptr == NULL) {
  260. return 0; // 未找到起始标记
  261. }
  262. start_ptr += strlen(start_token); // 移动指针到起始标记之后
  263. const char *end_ptr = strstr(start_ptr, end_token);
  264. if (end_ptr == NULL) {
  265. // 如果未找到结束标记,将从起始标记开始的字符串一直复制到 \0 结束
  266. strcpy(result, start_ptr);
  267. } else {
  268. // 找到结束标记,计算截取的长度并复制
  269. size_t length = end_ptr - start_ptr;
  270. strncpy(result, start_ptr, length);
  271. result[length] = '\0'; // 添加字符串结束符
  272. }
  273. return 1;
  274. }