public override byte[] sender(IPEndPoint dest)
{
UInt32 payload;
payload = NetworkUtils.littleEndian32(requestVersion);
return(payload.GetBytes());
}
public override byte[] sender(IPEndPoint dest)
{
Dahua2Header header;
byte[] headerArray;
string bodyStr;
byte[] bodyArray;
byte[] result;
int headerSize;
header = new Dahua2Header {
headerSize = NetworkUtils.littleEndian32((UInt32)typeof(Dahua2Header).StructLayoutAttribute.Size),
headerMagic = NetworkUtils.bigEndian32(magic),
_reserved_08 = 0,
_reserved_0C = 0,
packetSize1 = 0,
_reserved_14 = 0,
packetSize2 = 0,
_reserved_1C = 0
};
bodyStr = "{ \"method\" : \"DHDiscover.search\", \"params\" : { \"mac\" : \"\", \"uni\" : 1 } }\n";
bodyArray = Encoding.UTF8.GetBytes(bodyStr);
headerSize = typeof(Dahua2Header).StructLayoutAttribute.Size;
result = new byte[headerSize + bodyArray.Length];
header.packetSize1 = (UInt32)bodyArray.Length;
header.packetSize2 = (UInt32)bodyArray.Length;
headerArray = header.GetBytes();
headerArray.CopyTo(result, 0);
bodyArray.CopyTo(result, headerSize);
return(result);
}
public override void reciever(IPEndPoint from, byte[] data)
{
string deviceModel, deviceSerial;
// xml is much bigger
if (data.Length == typeof(BoschBinaryAnswer).StructLayoutAttribute.Size)
{
BoschBinaryAnswer binary;
UInt32 ip;
binary = data.GetStruct <BoschBinaryAnswer>();
if (NetworkUtils.bigEndian32(binary.magic) != answerMagic)
{
Logger.getInstance().WriteLine(Logger.DebugLevel.Warn, "Warning: Bosch.reciever(): Packet with wrong header.");
return;
}
ip = NetworkUtils.littleEndian32(binary.ipv4);
deviceSerial = binary.mac.ToString();
deviceModel = name;
viewer.deviceFound(name, 1, new IPAddress(ip), deviceModel, deviceSerial);
}
else
{
string xml;
string deviceIPv4Str, deviceIPv6Str;
Regex type, ipv4, ipv6, mac, serial;
Match m;
IPAddress ip;
xml = Encoding.UTF8.GetString(data);
type = new Regex("<friendlyName>([^<]*)</friendlyName>");
ipv4 = new Regex("<unitIPAddress>([^<]*)</unitIPAddress>");
ipv6 = new Regex("<unitIPv6Address>([^<]*)</unitIPv6Address>");
mac = new Regex("<physAddress>([^<]*)</physAddress>");
serial = new Regex("<serialNumber>([^<]*)</serialNumber>");
deviceIPv4Str = "";
m = ipv4.Match(xml);
if (m.Success)
{
deviceIPv4Str = m.Groups[1].Value;
}
deviceIPv6Str = "";
m = ipv6.Match(xml);
if (m.Success)
{
deviceIPv6Str = m.Groups[1].Value;
}
deviceModel = "";
m = type.Match(xml);
if (m.Success)
{
deviceModel = m.Groups[1].Value;
}
deviceSerial = "";
m = serial.Match(xml);
if (m.Success)
{
deviceSerial = m.Groups[1].Value;
}
else
{
m = mac.Match(xml);
if (m.Success)
{
deviceSerial = m.Groups[1].Value;
}
}
if (!IPAddress.TryParse(deviceIPv4Str, out ip))
{
Logger.getInstance().WriteLine(Logger.DebugLevel.Warn, String.Format("Warning: Bosch.reciever(): Invalid ipv4 format: {0}", deviceIPv4Str));
ip = from.Address;
}
viewer.deviceFound(name, 2, ip, deviceModel, deviceSerial);
if (IPAddress.TryParse(deviceIPv6Str, out ip))
{
viewer.deviceFound(name, 2, ip, deviceModel, deviceSerial);
}
else
{
Logger.getInstance().WriteLine(Logger.DebugLevel.Warn, String.Format("Warning: Bosch.reciever(): Invalid ipv6 format: {0}", deviceIPv6Str));
}
}
}
public override void reciever(IPEndPoint from, byte[] data)
{
Dahua1Section1 section1;
int section1Len;
byte section2Len;
UInt16 section3Len;
int deviceMacSize;
UInt32 deviceIPv4;
string deviceModel, deviceSerial, deviceIPv6;
byte[] deviceTypeArray, deviceMacArray;
byte[] section3Array;
int index;
section1Len = Marshal.SizeOf(typeof(Dahua1Section1));
deviceMacSize = 17; // "00:11:22:33:44:55".Length()
// section 1:
if (data.Length < Marshal.SizeOf(typeof(Dahua1Section1)))
{
Logger.getInstance().WriteLine(Logger.DebugLevel.Warn, String.Format("Warning: Dahua1.reciever(): Invalid packet size (less than section1) from {0}", from.ToString()));
return;
}
section1 = data.GetStruct <Dahua1Section1>();
if (section1.headerMagic != answerMagic)
{
Logger.getInstance().WriteLine(Logger.DebugLevel.Warn, String.Format("Warning: Dahua1.reciever(): Wrong header magic recieved from {0}", from.ToString()));
return;
}
// IP Address
deviceIPv4 = NetworkUtils.littleEndian32(section1.ip);
// device type
deviceModel = Encoding.UTF8.GetString(section1.deviceType);
section2Len = section1.section2Len;
section3Len = NetworkUtils.littleEndian16(section1.section3Len);
if (section1Len + section2Len + section3Len != data.Length)
{
Logger.getInstance().WriteLine(Logger.DebugLevel.Warn, String.Format("Warning: Dahua1.reciever(): Packet has wrong size = {0} (expected was {1})", data.Length, section1Len + section2Len + section3Len));
return;
}
// section 2:
// mac Address
deviceMacSize = Math.Min(deviceMacSize, section2Len);
deviceMacArray = new byte[deviceMacSize];
index = typeof(Dahua1Section1).StructLayoutAttribute.Size;
Array.Copy(data, index, deviceMacArray, 0, deviceMacSize);
index += deviceMacArray.Length;
deviceSerial = Encoding.UTF8.GetString(deviceMacArray);
// we still have more data in section 2
if (section2Len > deviceMacSize)
{
// if deviceType from section2, replace deviceType with this one
deviceTypeArray = new byte[section2Len - deviceMacSize];
Array.Copy(data, index, deviceTypeArray, 0, deviceTypeArray.Length);
index += deviceTypeArray.Length;
deviceModel = Encoding.UTF8.GetString(deviceTypeArray);
}
// section 3:
deviceIPv6 = null;
if (section3Len > 0)
{
Dictionary <string, string> values;
section3Array = new byte[section3Len];
Array.Copy(data, index, section3Array, 0, section3Array.Length);
index += section3Array.Length;
values = parseSection3(section3Array);
if (values.ContainsKey("SerialNo"))
{
deviceSerial = values["SerialNo"];
}
if (values.ContainsKey("IPv6Addr"))
{
deviceIPv6 = values["IPv6Addr"];
if (deviceIPv6.Contains(';'))
{
var IPv6Split = deviceIPv6.Split(';');
deviceIPv6 = IPv6Split[0];
}
if (deviceIPv6.Contains('/'))
{
var IPv6Split = deviceIPv6.Split('/');
deviceIPv6 = IPv6Split[0];
}
}
}
if (deviceIPv4 != 0)
{
viewer.deviceFound(name, 1, new IPAddress(deviceIPv4), deviceModel, deviceSerial);
}
else
{
viewer.deviceFound(name, 1, from.Address, deviceModel, deviceSerial);
Logger.getInstance().WriteLine(Logger.DebugLevel.Warn, String.Format("Warning: Dahua1.reciever(): Recieved ipv4 is null (from: {0})", from.Address.ToString()));
}
if (deviceIPv6 != null)
{
IPAddress ip;
if (IPAddress.TryParse(deviceIPv6, out ip))
{
viewer.deviceFound(name, 2, ip, deviceModel, deviceSerial);
}
else
{
Logger.getInstance().WriteLine(Logger.DebugLevel.Warn, String.Format("Warning: Dahua1.reciever(): Invalid ipv6 format: {0}", deviceIPv6));
}
}
}
public override void reciever(IPEndPoint from, byte[] data)
{
Dahua2Header header;
string bodyStr;
byte[] body;
int headerSize, packetSize;
string method;
IPAddress ip;
headerSize = typeof(Dahua2Header).StructLayoutAttribute.Size;
header = data.GetStruct <Dahua2Header>();
if (NetworkUtils.littleEndian32(header.headerSize) != headerSize)
{
Logger.getInstance().WriteLine(Logger.DebugLevel.Warn, String.Format("Warning: Dahua2.reciever(): recieved invalid frame (headerSize={0}, expected {1})!", header.headerSize, headerSize));
return;
}
packetSize = data.Length - headerSize;
if (NetworkUtils.littleEndian32(header.packetSize1) != packetSize)
{
Logger.getInstance().WriteLine(Logger.DebugLevel.Warn, String.Format("Warning: Dahua2.reciever(): recieved invalid frame (packetSize={0}, expected {1})!", NetworkUtils.littleEndian32(header.packetSize1), packetSize));
return;
}
body = new byte[packetSize];
for (int i = 0; i < packetSize; i++)
{
body[i] = data[headerSize + i];
}
bodyStr = Encoding.UTF8.GetString(body);
method = extractJsonString("method", bodyStr);
if (method == "client.notifyDevInfo")
{
string deviceModel, deviceIPv4, deviceIPv6, deviceSerial;
string IPv4Section, IPv6Section;
deviceModel = extractJsonString("DeviceType", bodyStr);
if (deviceModel == null)
{
deviceModel = "Dahua";
}
IPv4Section = extractJsonSection("IPv4Address", bodyStr);
deviceIPv4 = extractJsonString("IPAddress", IPv4Section);
if (deviceIPv4 == null)
{
deviceIPv4 = from.Address.ToString();
}
deviceIPv6 = null;
IPv6Section = extractJsonSection("IPv6Address", bodyStr);
if (IPv6Section != null)
{
deviceIPv6 = extractJsonString("IPAddress", IPv6Section);
if (deviceIPv6 != null)
{
int sub = deviceIPv6.IndexOfAny(new char[] { '/', '\\' });
if (sub > 0)
{
deviceIPv6 = deviceIPv6.Substring(0, sub - 1);
}
}
}
deviceSerial = extractJsonString("SerialNo", bodyStr);
if (deviceSerial == null)
{
deviceSerial = extractJsonString("mac", bodyStr);
}
if (deviceSerial == null)
{
deviceSerial = "Dahua device";
}
if (!IPAddress.TryParse(deviceIPv4, out ip))
{
ip = from.Address;
Logger.getInstance().WriteLine(Logger.DebugLevel.Warn, String.Format("Warning: Dahua2.reciever(): Invalid ipv4 format: {0}", deviceIPv4));
}
viewer.deviceFound(name, 2, ip, deviceModel, deviceSerial);
if (deviceIPv6 != null)
{
if (IPAddress.TryParse(deviceIPv6, out ip))
{
viewer.deviceFound(name, 2, ip, deviceModel, deviceSerial);
}
else
{
Logger.getInstance().WriteLine(Logger.DebugLevel.Warn, String.Format("Warning: Dahua2.reciever(): Invalid ipv6 format: {0}", deviceIPv6));
}
}
}
}
