/******************************************************************************
* 函数名称：ConvertBetween_ConnID_IPv6()
* 功能：实现ConnID协议到IPv6协议的转换
* 参数：data表示ConnID报文；
* 返回值：IPv6_packet 返回IPv6报文
* ***************************************************************************/
private PDU_Network ConvertBetween_ConnID_IPv6(Object data)
{
PDU_ConnID pdu_connid = (PDU_ConnID)data;
IPv6_packet = new PDU_Network(); //构造IPv6数据报
UDP_packet = new PDU_Transport(); //构造UDP数据报
UInt64 connid = pdu_connid.connid; //获取ConnID报文连接标识ConnID
List <Byte[]> app_data = pdu_connid.application_data; //获取ConnID报文应用层数据
Communicarion_Patameter commPata = (Communicarion_Patameter)CommPara_ConnID_Mapping[connid];
IPv6_packet.version = 0x6; //版本号4bit
IPv6_packet.traffic_class = 0x00; //通信类型8bit
IPv6_packet.flow_label = 0x0000; //流标签20bit
IPv6_packet.flow_label2 = 0x0;
IPv6_packet.next_header = commPata.next_header; //下一首部8bit
IPv6_packet.hop_limit = commPata.hop_limit; //跳数限制8bit
IPv6_packet.source_ipv6_address = commPata.source_ipv6_addr; //源IPv6地址
IPv6_packet.dest_ipv6_address = commPata.dest_ipv6_addr; //目的IPv6地址
UDP_packet.source_port = commPata.source_port; //源端口号
UDP_packet.dest_port = commPata.dest_port; //目的端口号
UDP_packet.udp_checksum = 0x0000;
UInt16 app_data_len = 0x0000; //应用层数据字节数
foreach (Byte[] B in app_data)
{
foreach (Byte b in B)
{
app_data_len++;
}
}
//================== UDP长度 =====================//
UDP_packet.udp_length = (UInt16)(0x0008 + app_data_len); //UDP长度为UDP报头+UDP数据长度
//================ IPv6有效载荷长度 ===============//
IPv6_packet.payload_length = UDP_packet.udp_length;
//================== UDP数据 ======================//
UDP_packet.application_data = app_data;
//================ IPv6上层PDU ====================//
IPv6_packet.pdu_transport = UDP_packet;
return(IPv6_packet);
}
/******************************************************************************
* 函数名称：MessageEncapsulation()
* 功能：报文封装
* 参数：x 表示模拟传输协议
* x="6LoWPAN" 表示构建6LoWPAN协议数据单元 ，x="ConnID"表示构建基于ConnID
* 方式协议数据单元
* 返回值：无
* ***************************************************************************/
public void MessageEncapsulation(string x)
{
try
{
Object temp = null;
if (this.Component_reveice_queue.Count > 0)
{
//读取微处理器组件接收队列数据
temp = this.Component_reveice_queue.Dequeue();
//将该数据作为应用层数据，同时转换为字节表示形式
List <Byte[]> app_data = new List <Byte[]>(); //应用层数据列表
//if (temp.GetType().Name == "Int32[]")
switch (temp.GetType().Name)
{
case "BloodPressureDataType":
BloodPressureDataType bpData = (BloodPressureDataType)temp;
Byte[] bytes0 = BitConverter.GetBytes(bpData.HighBP);
Byte[] bytes1 = BitConverter.GetBytes(bpData.LowBP);
app_data.Add(bytes0);
app_data.Add(bytes1);
break;
case "TemperatureDataType":
TemperatureDataType tempData = (TemperatureDataType)temp;
//Byte[] bytes2 = BitConverter.GetBytes(tempData.TemperatureInteger);
//Byte[] bytes3 = BitConverter.GetBytes(tempData.TemperatureDecimal);
app_data.Add(new Byte[] { tempData.TemperatureInteger });
app_data.Add(new Byte[] { tempData.TemperatureDecimal });
break;
case "HeartRateDataType":
HeartRateDataType hrData = (HeartRateDataType)temp;
Byte[] bytes4 = BitConverter.GetBytes(hrData.HeartRate);
app_data.Add(bytes4);
break;
}
switch (x)
{
case "6LoWPAN": //6LoWPAN协议数据单元
//构建6LoWPAN PDU
PDU_LoWPAN_IPHC pdu_lowpan_iphc = new PDU_LoWPAN_IPHC();
pdu_lowpan_iphc.dispatch = 0x7C; //0111 1100
pdu_lowpan_iphc.iphc_header = 0xD5; //1101 0101
pdu_lowpan_iphc.context_identifier = 0x12; //0001 0010
pdu_lowpan_iphc.IP_uncompressed_field = new List <Byte[]>();
//非压缩字段1，跳数限制255
Byte[] hop_limit = new Byte[] { 0xFF };
pdu_lowpan_iphc.IP_uncompressed_field.Add(hop_limit);
//非压缩字段2，源地址1201_0585_FEAB_5001H
Byte[] source_addr = new Byte[] { 0x12, 0x01, 0x05, 0x85, 0xFE, 0xAB, 0x50, 0x01 };
pdu_lowpan_iphc.IP_uncompressed_field.Add(source_addr);
//非压缩字段3，目的地址0000_0000_0000_1234H
Byte[] dest_addr = new Byte[] { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x12, 0x34 };
pdu_lowpan_iphc.IP_uncompressed_field.Add(dest_addr);
//根据IPHC报头NH=1，可判断下一报头采用LoWPAN_NHC压缩
pdu_lowpan_iphc.nhc_header = 0xF3; //1111 0011
pdu_lowpan_iphc.NH_field = new List <Byte[]>();
//根据nhc_header最后两位，确定端口号采用最短压缩形式，即源端口号和目的端口号所占存储均为4bit,默认前12bit为0xF0B
Byte[] port = new Byte[] { 0xF0 }; //即源端口号为0xF0BF，目的端口号为0xF0B0;
pdu_lowpan_iphc.NH_field.Add(port);
//UDP校验和0
Byte[] checksum = new Byte[] { 0x00, 0x0F };
pdu_lowpan_iphc.NH_field.Add(checksum);
//添加应用层数据
//foreach (Byte[] data in app_data)
//{
// pdu_lowpan_iphc.application_data.Add(data);
//}
pdu_lowpan_iphc.application_data = app_data;
//6LoWPAN PDU进入组件发送队列
this.Component_send_queue.Enqueue(pdu_lowpan_iphc);
//foreach (PDU_LoWPAN_IPHC p in Component_send_queue)
//{
// Console.WriteLine(p + "////");
//}
break;
case "ConnID": //ConnID协议数据单元
//构建ConnID PDU
PDU_ConnID pdu_connid = new PDU_ConnID();
pdu_connid.message_identifier = 0xFF; //FF表示Data消息类型
//Byte[] connid = new Byte[] { 0xF4, 0x31, 0xCA, 0x18, 0x5F, 0x74, 0xC6, 0xE6 }; //f431ca185f74c6e6
//pdu_connid.connid = new List<byte[]>();
//pdu_connid.connid.Add(connid);
pdu_connid.connid = 0xF431CA185F74C6E6;
//添加应用层数据
//foreach (Byte[] data in app_data)
//{
// pdu_connid.application_data.Add(data);
//}
pdu_connid.application_data = app_data;
//ConnID PDU进入组件发送队列
this.Component_send_queue.Enqueue(pdu_connid);
break;
case "ConnID_2": //ConnID协议数据单元
//构建ConnID PDU
PDU_ConnID pdu_connid_2 = new PDU_ConnID();
pdu_connid_2.message_identifier = 0xFF; //FF表示Data消息类型
//Byte[] connid_2 = new Byte[] { 0x73, 0xB6, 0xD1, 0x72, 0x50, 0x35, 0x87, 0x8d }; //73b6d1725035878d
//pdu_connid_2.connid = new List<byte[]>();
//pdu_connid_2.connid.Add(connid_2);
pdu_connid_2.connid = 0x73B6D1725035878D;
//添加应用层数据
//foreach (Byte[] data in app_data)
//{
// pdu_connid.application_data.Add(data);
//}
pdu_connid_2.application_data = app_data;
//ConnID PDU进入组件发送队列
this.Component_send_queue.Enqueue(pdu_connid_2);
break;
}
}
}
catch (Exception e)
{
Console.WriteLine("MP错误情况：" + e.Message + e.StackTrace);
}
}
/******************************************************************************
* 函数名称：ConnID_802151_Packet_Buffering()
* 功能：执行ConnID报文缓冲,帧格式为802.15.1
* 参数：data表示所收到的ConnID报文
* 返回值：无
* ***************************************************************************/
private void ConnID_802151_Packet_Buffering(Object data)
{
PDU_ConnID pdu_connid = (PDU_ConnID)data;
//foreach (Byte[] B in pdu_lowpan_iphc.uncompressed_field)
//{
// foreach (Byte b in B)
// {
// uncompressed_field_byte_num++;
// }
//}
//Console.WriteLine("非压缩字段字节数=" + uncompressed_field_byte_num);
int app_data_byte_num = 0; //应用层数据字节数
//记录当前数据报应用层数据量
foreach (Byte[] B in pdu_connid.application_data)
{
foreach (Byte b in B)
{
app_data_byte_num++;
}
}
//Console.WriteLine("应用层数据字节数=" + app_data_byte_num);
//当应用层总数据量+当前数据报应用层数据量 <= 22 字节时
if (total_app_data_byte_num + app_data_byte_num <= 22)
{
total_app_data_byte_num += app_data_byte_num;
//Console.WriteLine("应用层数据总量=" + total_app_data_byte_num);
//当前报文应用层数据进入N数据缓冲队列
this.Buffer_queue.Enqueue(pdu_connid.application_data);
}
else //当应用层数据总量达到22字节时
{
List <Byte[]> app_data = new List <byte[]>();
while (this.Buffer_queue.Count > 0)
{
//缓冲队列内数据全部出队
foreach (Byte[] B in (List <Byte[]>) this.Buffer_queue.Dequeue())
{
app_data.Add(B);
}
}
//将应用层数据重新封装成ConnID数据包
PDU_ConnID pdu_connid2 = new PDU_ConnID(pdu_connid.message_identifier,
pdu_connid.connid, app_data);
//重新封装的数据包进入缓冲区组件发送队列
this.Component_send_queue.Enqueue(pdu_connid2);
//当前报文应用层数据进入缓冲区队列
this.Buffer_queue.Enqueue(pdu_connid.application_data);
app_data_byte_num = 0;
//统计当前数据报应用层数据量
foreach (Byte[] B in pdu_connid.application_data)
{
foreach (Byte b in B)
{
app_data_byte_num++;
}
}
total_app_data_byte_num = app_data_byte_num; //重新设定应用层数据总量
//pdu_lowpan_iphc.application_data = app_data;
}
}