/******************************************************************************
* 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：CommPara_ConnID_MappingTab()
* 功能：建立通信参数-连接标识映射表
* 参数：无
* 返回值：无
* ***************************************************************************/
public void CommPara_ConnID_MappingTab()
{
CommPara_ConnID_Mapping = new Hashtable();
//ConnID 1
UInt64 ConnID1 = 0xF431CA185F74C6E6;
//ConnID 2
UInt64 ConnID2 = 0x73B6D1725035878D;
//2001:0DA8:D813:08A1:1201:0585:FEAB:6001
UInt16[] source_ipv6_addr1 = new UInt16[] { 0x0120, 0xA80D, 0x13D8, 0xA108, 0x0112, 0x8505, 0xABFE, 0x0160 };
UInt16[] source_ipv6_addr2 = new UInt16[] { 0x0120, 0xA80D, 0x13D8, 0xA108, 0x0112, 0x8505, 0xABFE, 0x0170 };
UInt16[] dest_ipv6_addr = new UInt16[] { 0x0120, 0xA80D, 0x18D8, 0x8200, 0x0000, 0x0000, 0x0000, 0x3412 };
Byte next_header = 0x11;
Byte hop_limit = 0xFF;
UInt16 source_port1 = 0xF0BF;
UInt16 source_port2 = 0xF0BE;
UInt16 dest_port = 0xF0B0;
//Communicarion Patameter 1
Communicarion_Patameter commPara1 = new Communicarion_Patameter();
commPara1.source_ipv6_addr = source_ipv6_addr1;
commPara1.dest_ipv6_addr = dest_ipv6_addr;
commPara1.next_header = next_header;
commPara1.hop_limit = hop_limit;
commPara1.source_port = source_port1;
commPara1.dest_port = dest_port;
//Communicarion Patameter 2
Communicarion_Patameter commPara2 = new Communicarion_Patameter();
commPara2.source_ipv6_addr = source_ipv6_addr2;
commPara2.dest_ipv6_addr = dest_ipv6_addr;
commPara2.next_header = next_header;
commPara2.hop_limit = hop_limit;
commPara2.source_port = source_port2;
commPara2.dest_port = dest_port;
CommPara_ConnID_Mapping.Add(ConnID1, commPara1);
CommPara_ConnID_Mapping.Add(ConnID2, commPara2);
}
