393 lines
15 KiB
C
393 lines
15 KiB
C
#include "jt808_msg_parse.h"
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#include "jt808_pkg_transmit.h"
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#include "local_tts.h"
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#include "jt808_electronic_fence.h"
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#include "attr_broadcast.h"
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PrsResult_t PrsResult;
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// 消息体解析
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static int jt808_BodyParse(void *Prsmsg_body, PrsResult_t *Result){
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switch (Result->msg_head.msg_id){
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case ID_Plat_GenResp:{// 平台通用应答
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memcpy(&(Result->Rsp_flow_num), Prsmsg_body, sizeof(Plat_GenResp_t));
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// 转小端
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Result->Rsp_flow_num = Swap16(Result->msg_head.msg_flow_num);
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Result->Rsp_msg_id = Swap16(Result->msg_head.msg_id);
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// Result->Rsp_result = Result->Rsp_result;
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break;
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}
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case ID_FillPktReq:{// 补传分包请求
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break;
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}
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case ID_Term_RegResp:{// 终端注册应答
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Result->Rsp_flow_num = (uint16_t)(((uint8_t *)Prsmsg_body)[0] << 8) | (((uint8_t *)Prsmsg_body)[1]);
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Result->Rsp_result = ((uint8_t *)Prsmsg_body)[2];
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if(Result->Rsp_result == Msg_ok){ // 成功时，读取鉴权码
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if(Result->term_param_item->big_auth_info.str_auth_code != NULL){
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jt808_free(Result->term_param_item->big_auth_info.str_auth_code);
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Result->term_param_item->big_auth_info.str_auth_code = NULL;
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}
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Result->term_param_item->big_auth_info.str_auth_code = (char *)jt808_malloc(Result->msg_head.msgbody_attr.msgbodylen - 3 +1); // 加1是为了加上结束符
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if(Result->term_param_item->big_auth_info.str_auth_code == NULL){
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JT808_DEBUG("[%s,%s] malloc failed\r\n", __FUNCTION__,__LINE__);
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return -1;
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}
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memset(Result->term_param_item->big_auth_info.str_auth_code, 0, Result->msg_head.msgbody_attr.msgbodylen - 3 +1);
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memcpy(Result->term_param_item->big_auth_info.str_auth_code, Prsmsg_body + 3 , Result->msg_head.msgbody_attr.msgbodylen - 3);
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}
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break;
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}
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case ID_SetTermParams:{// 设置终端参数
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Result->term_param_item->big_specific_params.param_Total_num = ((uint8_t *)Prsmsg_body)[0]; // 总参数个数
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uint8_t *p_Prsmsg_body = (uint8_t *)Prsmsg_body + 1;
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for(int i = 0; i < Result->term_param_item->big_specific_params.param_Total_num; i++){
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// 设置终端参数
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jt808_setTermParam(((uint8_t *)(p_Prsmsg_body))[0] << 24 | ((uint8_t *)(p_Prsmsg_body))[1] << 16 | ((uint8_t *)(p_Prsmsg_body))[2] << 8 | ((uint8_t *)(p_Prsmsg_body))[3], // 参数ID
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(void *)(p_Prsmsg_body + 5), // 参数值
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p_Prsmsg_body[4]); // 参数长度
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p_Prsmsg_body += 5 + p_Prsmsg_body[4]; // 参数ID(4) + 参数长度(1) + 参数值(n)
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}
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Result->Rsp_flow_num = Result->msg_head.msg_flow_num;
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Result->Rsp_msg_id = Result->msg_head.msg_id;
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Result->Rsp_result = Msg_ok;
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jt808_pkg_send(ID_Term_GenResp, 0);// 发送终端通用应答
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break;
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}
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case ID_GetTermParams:{// 查询终端参数
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break;
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}
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case ID_GetSpecificTermParams:{// 查询指定终端参数
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break;
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}
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case ID_Term_Ctrl:{// 终端控制
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break;
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}
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case ID_GetTermAttr:{// 查询终端属性
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jt808_pkg_send(ID_GetTermAttrResp, 0);// 发送查询终端属性应答，设置本消息无发送应答
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break;
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}
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case ID_Term_Upgrade:{// 下发终端升级包
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break;
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}
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case ID_GetLocInfo:{// 位置信息查询
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break;
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}
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case ID_LocTrackingCtrl:{// 临时位置跟踪控制
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break;
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}
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case ID_TxtMsgdelivery:{// 文本信息下发
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uint8_t device_volume, speed, volume, mode;
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uint8_t txt_flag = ((uint8_t *)Prsmsg_body)[0];
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JT808_DEBUG("ID_TxtMsgdelivery:%x\r\n", txt_flag);
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Prsmsg_body = (void *)((uint8_t *)Prsmsg_body + 1); // 跳过标志位
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device_volume =10*(((uint8_t *)Prsmsg_body)[0]-'0') + (((uint8_t *)Prsmsg_body)[1]-'0');
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speed =10*(((uint8_t *)Prsmsg_body)[3]-'0') + (((uint8_t *)Prsmsg_body)[4]-'0');
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volume =10*(((uint8_t *)Prsmsg_body)[6]-'0') + (((uint8_t *)Prsmsg_body)[7]-'0');
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mode = ((uint8_t *)Prsmsg_body)[9]-'0';
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Result->Rsp_result = Msg_ok;
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if((((uint8_t *)Prsmsg_body)[2] == ',')&&(((uint8_t *)Prsmsg_body)[5] == ',')&&(((uint8_t *)Prsmsg_body)[8] == ',')&&(((uint8_t *)Prsmsg_body)[10] == ';')){ // 文本信息下发
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if(speed > 0 && speed <= 15 && volume > 0 && volume <= 15 && mode >= 0 && mode <= 2){ // 速度、音量、模式有效
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local_tts_volume(device_volume); // 设置音量大小
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local_tts_set(speed, volume, mode);
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}else{
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JT808_DEBUG("error speed or volume or mode\r\n");
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local_tts_volume(50); // 设置音量大小
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local_tts_set(6, 7, CM_LOCAL_TTS_DIGIT_AUTO);
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Result->Rsp_result = Msg_invalid;//消息有误
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}
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}else{
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JT808_DEBUG("error speed or volume or mode\r\n");
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local_tts_volume(80); // 设置音量大小
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local_tts_set(7, 15, CM_LOCAL_TTS_DIGIT_AUTO);
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Result->Rsp_result = Msg_invalid;//消息有误
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}
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local_tts_text_play((char *)Prsmsg_body + 11, Result->msg_head.msgbody_attr.msgbodylen -11,0); // 开始播放文本信息// 不可打断
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Result->Rsp_flow_num = Result->msg_head.msg_flow_num;
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Result->Rsp_msg_id = Result->msg_head.msg_id;
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// Result->Rsp_result = Msg_ok;
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jt808_pkg_send(ID_Term_GenResp, 0);// 发送终端通用应答
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break;
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}
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case ID_Car_Ctrl:{// 车辆控制
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if(Result->msg_head.msgbody_attr.msgbodylen == 1){ // 车辆控制
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jt808_Set_CarStatus(((uint8_t *)Prsmsg_body)[0]); // 设置车辆状态
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Result->Rsp_result = Msg_ok;
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}else{
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Result->Rsp_result = Msg_invalid;
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}
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Result->Rsp_flow_num = Result->msg_head.msg_flow_num;
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Result->Rsp_msg_id = Result->msg_head.msg_id;
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jt808_pkg_send(ID_Car_CtrlResp, 0);// 发送车辆控制应答，设置本消息无发送应答
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break;
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}
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case ID_Set_Circle_Area:{// 设置圆形区域(0x8600)
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int ret = 0;
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uint8_t *p = (uint8_t *)Prsmsg_body;
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// 解析固定字段
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uint32_t Area_ID = Swap32(*(uint32_t *)p);
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uint16_t Area_att = Swap16(*(uint16_t *)(p + 4));
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uint32_t center_lat = Swap32(*(uint32_t *)(p + 6));
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uint32_t center_lon = Swap32(*(uint32_t *)(p + 10));
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uint32_t radius = Swap32(*(uint32_t *)(p + 14));
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// 解析景点名称字符串
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uint16_t fixed_len = 18; // 前18字节是固定字段
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uint16_t name_len = Result->msg_head.msgbody_attr.msgbodylen - fixed_len;
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char *scenic_name = NULL;
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if (name_len > 0) {
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scenic_name = (char *)jt808_malloc(name_len + 1);
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if (scenic_name) {
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memcpy(scenic_name, p + fixed_len, name_len);
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scenic_name[name_len] = '\0'; // 添加字符串终止符
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}
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}
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// 转换为实际经纬度（除以10^6）
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double actual_lat = (double)center_lat / 1000000.0;
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double actual_lon = (double)center_lon / 1000000.0;
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JT808_DEBUG("actual_lat=%f,actual_lon=%f\r\n",actual_lat,actual_lon);
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// 调用区域添加函数
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attr_broadcast_add_attraction(
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Area_ID, // 区域ID
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actual_lon, // 经度
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actual_lat, // 纬度
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(double)radius, // 半径（米）
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scenic_name ? scenic_name : "",// 景点名称
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"" // 描述（可选）
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);
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// 释放名称内存
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if (scenic_name) jt808_free(scenic_name);
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// 设置响应结果
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Result->Rsp_result = (ret == 0) ? Msg_ok : Msg_err;
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Result->Rsp_flow_num = Result->msg_head.msg_flow_num;
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Result->Rsp_msg_id = Result->msg_head.msg_id;
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// 发送终端通用应答
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jt808_pkg_send(ID_Term_GenResp, 0);
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JT808_DEBUG("attraction data accepted\r\n");
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break;
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}
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case ID_Delete_Circle_area:{// 删除圆形区域(0x8601)
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int ret = 0;
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uint8_t area_count = *((uint8_t*)Prsmsg_body); // 区域个数(1字节)
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uint32_t* area_ids = (uint32_t*)((uint8_t*)Prsmsg_body + 1);
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// 特殊处理：0表示删除所有区域
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if (area_count == 0) {
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attr_broadcast_remove_all();
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}
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// 正常删除指定区域
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else {
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Result->Rsp_result = Msg_ok; //删不删干净都是ok
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for (int i = 0; i < area_count; i++) {
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uint32_t area_id = Swap32(area_ids[i]);
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attr_broadcast_remove_attraction_by_id(area_id);
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}
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}
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// 设置应答信息
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Result->Rsp_flow_num = Result->msg_head.msg_flow_num;
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Result->Rsp_msg_id = Result->msg_head.msg_id;
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jt808_pkg_send(ID_Term_GenResp, 0); // 发送终端通用应答
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break;
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}
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case ID_Set_Polygon_area:{// 设置多边形区域
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int ret = 0;
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uint32_t Area_ID; // 区域ID
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uint16_t Area_att; // 区域属性
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uint16_t Area_Points_Num; // 区域内点的数量
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memcpy(&Area_ID, ((uint8_t *)Prsmsg_body), 4); // 区域ID
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memcpy(&Area_att, ((uint8_t *)Prsmsg_body)+4, 2); // 区域属性
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memcpy(&Area_Points_Num, ((uint8_t *)Prsmsg_body)+21, 2); // 区域点个数
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if(Swap16(Area_Points_Num) <= 120){ // 区域点个数有效
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ret = jt808_add_tail_fence_Polygon_area(Swap32(Area_ID), // 区域ID
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Swap16(Area_att), // 区域属性
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Swap16(Area_Points_Num), // 区域点个数
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(AreaPoint_t *)(((uint8_t *)Prsmsg_body) + 23)); // 区域点坐标
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if(ret == 0){
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Result->Rsp_result = Msg_ok;
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}else{
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Result->Rsp_result = Msg_err;
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}
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}else{
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Result->Rsp_result = Msg_invalid;
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}
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Result->Rsp_flow_num = Result->msg_head.msg_flow_num;
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Result->Rsp_msg_id = Result->msg_head.msg_id;
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jt808_pkg_send(ID_Term_GenResp, 0);// 发送终端通用应答
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break;
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}
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case ID_Delete_Polygon_area:{// 删除多边形区域
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int ret = 0;
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uint8_t Area_ID_Num = ((uint8_t *)Prsmsg_body)[0]; // 区域ID个数
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//Prsmsg_body = (void *)((uint8_t *)Prsmsg_body + 1); // 跳过1字节
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uint8_t *p_id = (uint8_t *)Prsmsg_body + 1; // 指向第一个ID
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Result->Rsp_result = Msg_ok;
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JT808_DEBUG("Area_ID_Num=%d\r\n",Area_ID_Num);
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// 区域数为0：删除所有区域
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if (Area_ID_Num == 0) {
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if (jt808_remove_fence_Polygon_area(0) != 0) {
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Result->Rsp_result = Msg_err;
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}
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}
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else {
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for(int i = 0; i < Area_ID_Num; i++){
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uint32_t area_id = (p_id[0] << 24) | (p_id[1] << 16) | (p_id[2] << 8) | p_id[3];
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ret = jt808_remove_fence_Polygon_area(area_id);
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if(ret != 0){
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Result->Rsp_result = Msg_err;
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break;
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}
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p_id += 4;
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}
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}
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Result->Rsp_flow_num = Result->msg_head.msg_flow_num;
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Result->Rsp_msg_id = Result->msg_head.msg_id;
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jt808_pkg_send(ID_Term_GenResp, 0);// 发送终端通用应答
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break;
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}
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case ID_Data_Down:{// 数据下行透传
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jt808_data_down_SeriaNet(((uint8_t *)Prsmsg_body)[0],((uint8_t *)Prsmsg_body) + 1, Result->msg_head.msgbody_attr.msgbodylen - 1); // 透传数据
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Result->Rsp_flow_num = Result->msg_head.msg_flow_num;
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Result->Rsp_msg_id = Result->msg_head.msg_id;
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Result->Rsp_result = Msg_ok;
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jt808_pkg_send(ID_Term_GenResp, 0);// 发送终端通用应答
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// JT808_DEBUG("ID_Data_Down\r\n");
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break;
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}
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default:{
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return -2; // 没有对应的消息体解析函数
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break;
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}
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}
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return 0;
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}
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// jt808协议包处理
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int jt808_msg_parse(const uint8_t *BufferReceive, uint16_t length, PrsResult_t *Result){
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uint8_t *raw_Buffer = (uint8_t *)jt808_malloc(length * sizeof(uint8_t));
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if(raw_Buffer == NULL){
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JT808_DEBUG("[%s,%s] malloc failed \r\n", __FUNCTION__,__LINE__);
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return -1;
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}
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memcpy(raw_Buffer, BufferReceive, length);
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// // 打印原始数据
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// app_printf("raw_Buffer: %d\r\n", length);
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// for(int i = 0; i < length; i++){
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// app_printf("%02x ", raw_Buffer[i]);
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// }
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// app_printf("\r\n");
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// 计算需要逆转义字符的个数
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uint16_t para_length = 0;
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for(int i = 1; i < (length - 2); i++){
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if(((raw_Buffer[i] == PESC)&&(raw_Buffer[i+1] == PESC_SIGN)) || // 7d 02 转义7e
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((raw_Buffer[i] == PESC)&&(raw_Buffer[i+1] == PESC_ESCAPE))){ // 7d 01 转义7d
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para_length++;
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}
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}
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para_length =length - para_length;
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uint8_t *para_Buffer = (uint8_t *)jt808_malloc(para_length * sizeof(uint8_t));
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if(para_Buffer == NULL){
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JT808_DEBUG("[%s,%s] malloc failed \r\n", __FUNCTION__,__LINE__);
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jt808_free(raw_Buffer);
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return -1;
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}
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para_Buffer[0] = PSIGN;
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para_Buffer[para_length - 1] = PSIGN;
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// 逆转义
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uint16_t offset_num = 0;
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for(int i = 1; i < (para_length - 1); i++){
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if(((raw_Buffer[i + offset_num] == PESC)&&(raw_Buffer[i + offset_num + 1] == PESC_SIGN))){ // 7d 02 转义7e
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para_Buffer[i] = PSIGN;
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offset_num++;
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}else if(((raw_Buffer[i + offset_num] == PESC)&&(raw_Buffer[i + offset_num + 1] == PESC_ESCAPE))){ // 7d 01 转义7d
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para_Buffer[i] = PESC;
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offset_num++;
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}else{
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para_Buffer[i] =raw_Buffer[i + offset_num];
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}
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}
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// 释放内存
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jt808_free(raw_Buffer);
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if(offset_num != length - para_length){ // 转义后长度有误
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JT808_DEBUG("error offset_num != length - para_length\r\n");
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jt808_free(para_Buffer);
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return -1;
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}
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// // 打印逆转义后数据
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// app_printf("para_Buffer: %d\r\n", para_length);
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// for(int i = 0; i < para_length; i++){
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// app_printf("%02x ", para_Buffer[i]);
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// }
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// app_printf("\r\n");
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// 异或校验
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if(para_Buffer[para_length - 2] != BCC_Check(para_Buffer + 1, para_length - 2 - 1)){
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JT808_DEBUG("BCC_CheckSum ERROR: %x %x\r\n",para_Buffer[para_length - 2] ,BCC_Check(para_Buffer + 1, para_length - 2 - 1));
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jt808_free(para_Buffer);
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return -1;
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}
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// 解析消息头
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memcpy(&Result->msg_head, para_Buffer + 1, sizeof(MsgHead_t) - ((para_Buffer[3] & 0x02)==0? 4 : 0));
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Result->msg_head.msg_id = Swap16(Result->msg_head.msg_id);// 消息ID
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Result->msg_head.msgbody_attr.val16 = Swap16(Result->msg_head.msgbody_attr.val16);// 消息体属性
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Result->msg_head.msg_flow_num = Swap16(Result->msg_head.msg_flow_num);// 消息流水号
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Result->msg_head.total_packet = Swap16(Result->msg_head.total_packet);// 总包数, 分包情况下使用
|
||
Result->msg_head.packet_seq = Swap16(Result->msg_head.packet_seq);// 当前包序号, 分包情况下使用
|
||
|
||
JT808_DEBUG("RECV Msg_ID:0x%04X len:%d\r\n", Result->msg_head.msg_id ,para_length);
|
||
for(uint16_t i = 0; i < para_length; i++){
|
||
JT808_DEBUG_DATA("%02X ", *(para_Buffer + i));
|
||
}
|
||
JT808_DEBUG_DATA("\n");
|
||
// 消息体解析
|
||
if(0 != jt808_BodyParse((void *)(para_Buffer + 1 + sizeof(MsgHead_t) - ((para_Buffer[3] & 0x02)==0? 4 : 0)) ,Result)){
|
||
JT808_DEBUG("error jt808_BodyParse\r\n");
|
||
// 释放内存
|
||
jt808_free(para_Buffer);
|
||
return -1;
|
||
}
|
||
|
||
// 释放内存
|
||
jt808_free(para_Buffer);
|
||
return 0;
|
||
}
|