private void HandleRapiSession()
{
List<PacketSlice> slices = new List<PacketSlice>();
TransactionNode node, req, resp;
string str;
UInt32 val, retVal, lastError;
while (stream.GetBytesAvailable() > 0)
{
UInt32 msgLen, msgType;
List<PacketSlice> msgLenSlices = new List<PacketSlice>(1);
List<PacketSlice> msgTypeSlices = new List<PacketSlice>(1);
// Message length
msgLen = stream.ReadU32LE(msgLenSlices);
if (msgLen == 5)
{
node = new TransactionNode("RAPINotification");
node.Description = node.Name;
node.AddField("MessageType", "RAPI_NOTIFICATION", "Message type.", msgLenSlices);
val = stream.ReadU32LE(slices);
node.AddField("NotificationType", (val == 4) ? "REQUEST_NEW_CONNECTION" : StaticUtils.FormatFlags(val), "Notification type.", slices);
val = stream.ReadU32LE(slices);
node.AddField("Argument", val, "Argument.", slices);
session.AddNode(node);
if (stream.GetBytesAvailable() < 4)
break;
else
continue;
}
else if (msgLen == 1)
{
node = new TransactionNode("RAPIKeepalive");
node.Description = node.Name;
req = new TransactionNode(node, "Request");
req.AddField("MessageType", "RAPI_PING", "Message type.", msgLenSlices);
stream = session.GetNextStreamDirection();
if (stream.GetBytesAvailable() < 4)
break;
stream.ReadU32LE(slices);
resp = new TransactionNode(node, "Response");
resp.AddField("MessageType", "RAPI_PONG", "Message type.", slices);
session.AddNode(node);
stream = session.GetNextStreamDirection();
if (stream.GetBytesAvailable() < 4)
break;
else
continue;
}
// Message type
msgType = stream.ReadU32LE(msgTypeSlices);
if (msgType >= rapiCallNames.Length)
{
logger.AddMessage("Unknown call name: {0:x8}", msgType);
return;
}
string name = rapiCallNames[msgType];
RAPICallNode call = new RAPICallNode(name);
call.Description = call.Name;
req = call.Request;
resp = call.Response;
req.AddField("MessageLength", msgLen, "Length of the RAPI request.", msgLenSlices);
req.AddField("MessageType", String.Format("{0} (0x{1:x2})", name, msgType), "Type of the RAPI request.", msgTypeSlices);
if (name == "CeRegOpenKeyEx")
{
val = stream.ReadU32LE(slices);
req.AddField("hKey", StaticUtils.FormatRegKey(val),
"Handle to a currently open key or one of the following predefined reserved handle values:\n" +
"HKEY_CLASSES_ROOT\nHKEY_CURRENT_USER\nHKEY_LOCAL_MACHINE\nHKEY_USERS",
slices);
str = stream.ReadRAPIString(slices);
req.AddField("szSubKey", str,
"A null-terminated string containing the name of the subkey to open.",
slices);
req.Summary = String.Format("{0}, \"{1}\"", StaticUtils.FormatRegKey(val, true), str);
SwitchToResponseAndParseResult(resp, slices, out retVal, out lastError);
val = stream.ReadU32LE(slices);
string result = String.Format("0x{0:x8}", val);
resp.AddField("hkResult", result, "Handle to the opened key.", slices);
if (retVal == Constants.ERROR_SUCCESS)
resp.Summary = String.Format("{0}, {1}", StaticUtils.FormatRetVal(retVal, true), result);
else
resp.Summary = StaticUtils.FormatRetVal(retVal, true);
}
else if (name == "CeRegCreateKeyEx")
{
val = stream.ReadU32LE(slices);
req.AddField("hKey", StaticUtils.FormatRegKey(val),
"Handle to a currently open key or one of the following predefined reserved handle values:\n" +
"HKEY_CLASSES_ROOT\nHKEY_CURRENT_USER\nHKEY_LOCAL_MACHINE\nHKEY_USERS", slices);
string szSubKey = stream.ReadRAPIString(slices);
req.AddField("szSubKey", (szSubKey != null) ? szSubKey : "(null)",
"A null-terminated string specifying the name of a subkey that this function opens or creates. " +
"The subkey specified must be a subkey of the key identified by the hKey parameter. This subkey " +
"must not begin with the backslash character (\\). If the parameter is NULL, then RegCreateKeyEx " +
"behaves like RegOpenKey, where it opens the key specified by hKey.", slices);
string szClass = stream.ReadRAPIString(slices);
req.AddField("szClass", (szClass != null) ? szClass : "(null)",
"A null-terminated string that specifies the class (object type) of this key. This parameter is " +
"ignored if the key already exists.", slices);
req.Summary = String.Format("{0}, {1}, {2}",
StaticUtils.FormatRegKey(val, true),
StaticUtils.FormatStringArgument(szSubKey),
StaticUtils.FormatStringArgument(szClass));
SwitchToResponseAndParseResult(resp, slices, out retVal, out lastError);
string result = String.Format("0x{0:x8}", stream.ReadU32LE(slices));
resp.AddField("hkResult", result, "Handle to the opened key.", slices);
UInt32 disposition = stream.ReadU32LE(slices);
resp.AddField("dwDisposition", StaticUtils.FormatRegDisposition(disposition),
"Receives one of REG_CREATED_NEW_KEY and REG_OPENED_EXISTING_KEY.",
slices);
if (retVal == Constants.ERROR_SUCCESS)
resp.Summary = String.Format("{0}, {1}, {2}",
StaticUtils.FormatRetVal(retVal, true), result, StaticUtils.FormatRegDisposition(disposition, true));
else
resp.Summary = StaticUtils.FormatRetVal(retVal, true);
}
else if (name == "CeRegCloseKey")
{
val = stream.ReadU32LE(slices);
req.AddField("hKey", StaticUtils.FormatRegKey(val),
"Handle to the open key to close.", slices);
req.Summary = StaticUtils.FormatRegKey(val, true);
SwitchToResponseAndParseResult(resp, slices, out retVal, out lastError);
resp.Summary = StaticUtils.FormatRetVal(retVal, true);
}
else if (name == "CeRegQueryValueEx")
{
val = stream.ReadU32LE(slices);
req.AddField("hKey", StaticUtils.FormatRegKey(val),
"Handle to a currently open key or any of the following predefined reserved handle values:\n" +
"HKEY_CLASSES_ROOT\nHKEY_CURRENT_USER\nHKEY_LOCAL_MACHINE\nHKEY_USERS", slices);
string szValueName = stream.ReadRAPIString(slices);
req.AddField("szValueName", szValueName,
"A string containing the name of the value to query.", slices);
UInt32 cbData = stream.ReadU32LE(slices);
req.AddField("cbData", cbData,
"A variable that specifies the maximum number of bytes to return.", slices);
req.Summary = String.Format("{0}, {1}, {2}",
StaticUtils.FormatRegKey(val, true),
StaticUtils.FormatStringArgument(szValueName),
cbData);
SwitchToResponseAndParseResult(resp, slices, out retVal, out lastError);
UInt32 dwType = stream.ReadU32LE(slices);
resp.AddField("dwType", StaticUtils.FormatRegType(dwType),
"The type of data associated with the specified value.",
slices);
cbData = stream.ReadU32LE(slices);
resp.AddField("cbData", Convert.ToString(cbData),
"The size of the data returned.", slices);
str = ReadAndFormatDataForRegType(dwType, cbData, slices);
if (str == null)
str = "NULL";
resp.AddField("Data", str, "The data returned.", slices);
resp.Summary = StaticUtils.FormatRetVal(retVal, true);
}
else if (name == "CeRegSetValueEx")
{
UInt32 key = stream.ReadU32LE(slices);
req.AddField("hKey", StaticUtils.FormatRegKey(key),
"Handle to a currently open key or any of the following predefined reserved handle values:\n" +
"HKEY_CLASSES_ROOT\nHKEY_CURRENT_USER\nHKEY_LOCAL_MACHINE\nHKEY_USERS", slices);
string szValueName = stream.ReadRAPIString(slices);
req.AddField("szValueName", szValueName,
"String containing the name of the value to set. If a value with this name is not already " +
"present in the key, the function adds it to the key. If this parameter is NULL or an empty " +
"string, the function sets the type and data for the key's unnamed value. Registry keys do " +
"not have default values, but they can have one unnamed value, which can be of any type.",
slices);
UInt32 dwType = stream.ReadU32LE(slices);
req.AddField("dwType", StaticUtils.FormatRegType(dwType),
"Type of information to be stored as the value's data.",
slices);
UInt32 cbData = stream.ReadU32LE(slices);
req.AddField("cbData", Convert.ToString(cbData),
"Specifies the size, in bytes, of the information passed in the the Data field.",
slices);
str = ReadAndFormatDataForRegType(dwType, cbData, slices);
if (str == null)
str = "NULL";
req.AddField("Data", str, "Buffer containing the data to be stored with the specified value name.",
slices);
string dataSummary;
if (dwType == Constants.REG_DWORD || dwType == Constants.REG_DWORD_BIG_ENDIAN)
{
dataSummary = str;
}
else
dataSummary = String.Format("[{0} bytes]", cbData);
req.Summary = String.Format("{0}, {1}, {2}, {3}",
StaticUtils.FormatRegKey(key), StaticUtils.FormatStringArgument(szValueName), StaticUtils.FormatRegType(dwType), dataSummary);
SwitchToResponseAndParseResult(resp, slices, out retVal, out lastError);
resp.Summary = StaticUtils.FormatRetVal(retVal, true);
}
else if (name == "CeProcessConfig")
{
str = stream.ReadRAPIString(slices);
req.AddXMLField("szRequest", str, "Config request.", slices);
UInt32 flags = stream.ReadU32LE(slices);
req.AddField("dwFlags", StaticUtils.FormatFlags(flags), "Flags.", slices);
req.Summary = String.Format("[{0} bytes], 0x{1:x8}",
str.Length, flags);
SwitchToResponseAndParseResult(resp, slices, out retVal, out lastError);
str = stream.ReadRAPIString(slices);
resp.AddXMLField("szResponse", str, "Config response.", slices);
if (retVal == Constants.ERROR_SUCCESS)
resp.Summary = String.Format("{0}, [{1} bytes]",
StaticUtils.FormatRetVal(retVal, true), (str != null) ? str.Length : 0);
else
resp.Summary = StaticUtils.FormatRetVal(retVal, true);
}
else if (name == "CeGetDesktopDeviceCaps")
{
string caps = FormatDeviceCaps(stream.ReadU32LE(slices));
req.AddField("nIndex", caps, "The item to return.", slices);
req.Summary = caps;
SwitchToResponseAndParseResult(resp, slices, out retVal, out lastError, false);
resp.Summary = StaticUtils.FormatValue(retVal);
}
else if (name == "CeSyncStart")
{
string xml = stream.ReadRAPIString(slices);
req.AddXMLField("szXML", (xml != null) ? xml : "(null)",
"Optional message.", slices);
if (xml != null)
req.Summary = String.Format("[{0} bytes]", xml.Length);
else
req.Summary = "NULL";
SwitchToResponseAndParseResult(resp, slices, out retVal, out lastError);
resp.Summary = StaticUtils.FormatRetVal(retVal, true);
}
else if (name == "CeSyncResume" || name == "CeSyncPause")
{
req.Summary = "";
SwitchToResponseAndParseResult(resp, slices, out retVal, out lastError, false);
resp.Summary = StaticUtils.FormatRetVal(retVal, true);
}
else if (name == "CeStartReplication")
{
req.Summary = "";
SwitchToResponseAndParseResult(resp, slices, out retVal, out lastError, false);
resp.Summary = StaticUtils.FormatBool(retVal);
}
else if (name == "CeGetFileAttributes")
{
string fileName = stream.ReadRAPIString(slices);
req.AddXMLField("szFileName", fileName,
"Name of a file or directory.", slices);
req.Summary = String.Format("\"{0}\"", fileName);
SwitchToResponseAndParseResult(resp, slices, out retVal, out lastError, false);
resp.Summary = StaticUtils.FormatValue(retVal);
}
else
{
if (msgLen > 4)
{
byte[] bytes = stream.ReadBytes((int)msgLen - 4, slices);
req.AddField("UnparsedData", StaticUtils.FormatByteArray(bytes), "Unparsed data.", slices);
}
req.Summary = "[not yet parsed]";
SwitchToResponseAndParseResult(resp, slices, out retVal, out lastError, false);
resp.Summary = "[not yet parsed]";
}
session.AddNode(call);
stream = session.GetNextStreamDirection();
if (stream.GetBytesAvailable() == 0)
break;
}
}
private void SwitchToResponseAndParseResult(TransactionNode resp, List<PacketSlice> slices,
out UInt32 retVal, out UInt32 lastError,
bool formatRetVal)
{
stream = session.GetNextStreamDirection();
UInt32 msgLen = stream.ReadU32LE(slices);
resp.AddField("MessageLength", Convert.ToString(msgLen),
"Length of the RAPI response.", slices);
lastError = stream.ReadU32LE(slices);
resp.AddField("LastError", String.Format("0x{0:x8}", lastError),
"Last error on the CE device.", slices);
retVal = stream.ReadU32LE(slices);
resp.AddField("ReturnValue", (formatRetVal) ? StaticUtils.FormatRetVal(retVal) : StaticUtils.FormatValue(retVal),
"Return value.", slices);
}
public override bool HandleSession(IPSession session)
{
if (session.LocalEndpoint.Port != 990)
return false;
this.session = session;
stream = session.GetNextStreamDirection();
// The device should send the first DWORD of the handshake
if (stream.CurPacket.Direction == PacketDirection.PACKET_DIRECTION_INCOMING)
{
HandleRapiHandshake();
}
if (stream.GetBytesAvailable() >= 4)
HandleRapiSession();
return true;
}
private void HandleRapiHandshake()
{
RAPIConnectionState state = RAPIConnectionState.HANDSHAKE;
List<PacketSlice> slices = new List<PacketSlice>();
TransactionNode parentNode, node;
string str;
UInt32 val;
// Read and verify the initial request
UInt32 initialRequest = stream.ReadU32LE(slices);
if (initialRequest != NOTIFY_INITIAL_HANDSHAKE && initialRequest != NOTIFY_CONNECTION_READY)
{
logger.AddMessage("RAPI protocol error, unknown initial request {0}", initialRequest);
return;
}
node = new TransactionNode((initialRequest == 0) ? "RAPIInitialHandshake" : "RAPIConnectionStart");
node.Description = node.Name;
node.AddField("InitialRequest", (initialRequest == NOTIFY_INITIAL_HANDSHAKE) ? "NOTIFY_INITIAL_HANDSHAKE" : "NOTIFY_CONNECTION_READY", "Initial request.", slices);
// Now it's our turn
stream = session.GetNextStreamDirection();
if (initialRequest == NOTIFY_INITIAL_HANDSHAKE)
{
UInt32 firstPing = stream.ReadU32LE(slices);
node.AddField("FirstPing", firstPing, "First ping, should be 3.", slices);
// And the first pong
stream = session.GetNextStreamDirection();
UInt32 firstPong = stream.ReadU32LE(slices);
node.AddField("FirstPong", firstPong, "First pong, should be 4 for older WM5, 6 for newer versions.", slices);
if (firstPong == 6)
{
// Now we're supposed to send 4 DWORDs
stream = session.GetNextStreamDirection();
UInt32 secondPing = stream.ReadU32LE(slices);
node.AddField("SecondPingValue1", secondPing, "Second ping value #1, should be 7.", slices);
secondPing = stream.ReadU32LE(slices);
node.AddField("SecondPingValue2", secondPing, "Second ping value #2, should be 8.", slices);
secondPing = stream.ReadU32LE(slices);
node.AddField("SecondPingValue3", secondPing, "Second ping value #3, should be 4.", slices);
secondPing = stream.ReadU32LE(slices);
node.AddField("SecondPingValue4", secondPing, "Second ping value #4, should be 1.", slices);
// And the device should reply
stream = session.GetNextStreamDirection();
UInt32 secondPong = stream.ReadU32LE(slices);
node.AddField("SecondPong", secondPong, "Second pong, should be 4.", slices);
}
// Got it
session.AddNode(node);
parentNode = new TransactionNode("RAPIDeviceInfo");
parentNode.Description = parentNode.Name;
UInt32 deviceInfoLen = stream.ReadU32LE(slices);
UInt32 remainingDevInfoLen = deviceInfoLen;
parentNode.AddField("Length", deviceInfoLen, "Device info length.", slices);
if (deviceInfoLen > MAX_DEVICE_INFO_LENGTH)
{
logger.AddMessage("RAPI protocol error, length of the device info package should be below {0}, was {1}", MAX_DEVICE_INFO_LENGTH, deviceInfoLen);
return;
}
node = new TransactionNode(parentNode, "DeviceInfo");
Guid guid = new Guid(stream.ReadBytes(16, slices));
str = String.Format("{{0}}", guid.ToString());
node.AddField("DeviceGUID", str, "Device GUID.", slices);
remainingDevInfoLen -= 16;
val = stream.ReadU32LE(slices);
node.AddField("OsVersionMajor", val, "OS version, major.", slices);
remainingDevInfoLen -= 4;
val = stream.ReadU32LE(slices);
node.AddField("OsVersionMinor", val, "OS version, minor.", slices);
remainingDevInfoLen -= 4;
val = stream.ReadU32LE(slices);
node.AddField("DeviceNameLength", val, "Device name length (in characters, not bytes).", slices);
remainingDevInfoLen -= 4;
// calculate the string size in unicode, with terminating NUL word
val = (val + 1) * 2;
str = stream.ReadCStringUnicode((int)val, slices);
node.AddField("DeviceName", str, "Device name.", slices);
remainingDevInfoLen -= val;
val = stream.ReadU32LE(slices);
node.AddField("DeviceVersion", StaticUtils.FormatFlags(val), "Device version.", slices);
remainingDevInfoLen -= 4;
val = stream.ReadU32LE(slices);
node.AddField("DeviceProcessorType", StaticUtils.FormatFlags(val), "Device processor type.", slices);
remainingDevInfoLen -= 4;
val = stream.ReadU32LE(slices);
node.AddField("Unknown1", StaticUtils.FormatFlags(val), "Counter or a flag? ANDed with 0xFFFFFFFE in the code (should take a closer look at this).", slices);
remainingDevInfoLen -= 4;
val = stream.ReadU32LE(slices);
node.AddField("CurrentPartnerId", StaticUtils.FormatFlags(val), "Current partner id.", slices);
remainingDevInfoLen -= 4;
val = stream.ReadU32LE(slices);
node.AddField("DeviceId", StaticUtils.FormatFlags(val), "Current device id. Lives in HKCU\\Software\\Microsoft\\Windows CE Services\\Partners\\<DeviceIdentifier>.", slices);
remainingDevInfoLen -= 4;
/*
dw = stream.ReadU32LE(slices);
node.AddField("PlatformNameLength", dw, "Platform name length.", slices);
remainingDevInfoLen -= 4;*/
// Don't swallow the 4 last
remainingDevInfoLen -= 4;
byte[] bytes = stream.ReadBytes((int)remainingDevInfoLen, slices);
node.AddField("UnknownData1", StaticUtils.FormatByteArray(bytes), "Unknown device info data.", slices);
val = stream.ReadU32LE(slices);
node.AddField("PasswordMask", StaticUtils.FormatFlags(val), "Password mask. Non-zero if a password is set.", slices);
remainingDevInfoLen -= 4;
state = (val != 0) ? RAPIConnectionState.AUTH : RAPIConnectionState.SESSION;
// Now it's our turn
stream = session.GetNextStreamDirection();
node = parentNode;
}
else
{
state = RAPIConnectionState.SESSION;
}
// Add the last node for each case
session.AddNode(node);
while (state == RAPIConnectionState.AUTH)
{
parentNode = new TransactionNode("RAPIAuthAttempt");
parentNode.Description = parentNode.Name;
node = new TransactionNode(parentNode, "Request");
val = stream.ReadU16LE(slices);
node.AddField("Length", val, "Authentication data length.", slices);
byte[] bytes = stream.ReadBytes((int)val, slices);
node.AddField("Data", StaticUtils.FormatByteArray(bytes), "Authentication data.", slices);
stream = session.GetNextStreamDirection();
node = new TransactionNode(parentNode, "Response");
val = stream.ReadU16LE(slices);
node.AddField("Success", (val != 0) ? "TRUE" : "FALSE", "Whether the authentication attempt was successful.", slices);
session.AddNode(parentNode);
stream = session.GetNextStreamDirection();
if (val != 0)
state = RAPIConnectionState.SESSION;
}
}
private void ReadAllP2PDirectMessages(IPSession session, PacketStream stream)
{
while (stream.GetBytesAvailable() > 0)
{
try
{
TransactionNode node = ReadNextP2PDirectMessage(stream, "MSNP2PDirectMessage");
session.AddNode(node);
}
catch (EndOfStreamException e)
{
logger.AddMessage(String.Format("MSNP2PDirect: EOS at {0} ({1})", stream.Position, e));
break;
}
}
}
public IPSession()
{
events = new List<TCPEvent>();
streamIn = new PacketStream();
streamOut = new PacketStream();
nodes = new List<TransactionNode>();
}
protected void ReadNextP2PMessageChunk(PacketStream stream, TransactionNode parentNode)
{
TransactionNode p2pNode = new TransactionNode(parentNode, "MSNP2PMessageChunk");
// Headers
TransactionNode p2pHeaders = new TransactionNode(p2pNode, "Headers");
List<PacketSlice> slices = new List<PacketSlice>();
UInt32 sessionID = stream.ReadU32LE(slices);
p2pHeaders.AddField("SessionID", sessionID, "Session ID.", slices);
UInt32 messageID = stream.ReadU32LE(slices);
p2pHeaders.AddField("MessageID", messageID, "Message ID.", slices);
UInt64 dataOffset = stream.ReadU64LE(slices);
p2pHeaders.AddField("DataOffset", dataOffset, "Data offset.", slices);
UInt64 dataSize = stream.ReadU64LE(slices);
p2pHeaders.AddField("DataSize", dataSize, "Data size.", slices);
UInt32 chunkSize = stream.ReadU32LE(slices);
p2pHeaders.AddField("ChunkSize", chunkSize, "Chunk size.", slices);
UInt32 flags = stream.ReadU32LE(slices);
p2pHeaders.AddField("Flags", flags, StaticUtils.FormatFlags(flags), "Flags.", slices);
UInt32 ackedMsgID = stream.ReadU32LE(slices);
p2pHeaders.AddField("AckedMsgID", ackedMsgID, "MessageID of the message to be acknowledged.", slices);
UInt32 prevAckedMsgID = stream.ReadU32LE(slices);
p2pHeaders.AddField("PrevAckedMsgID", prevAckedMsgID, "AckedMsgID of the last chunk to ack.", slices);
UInt64 ackedDataSize = stream.ReadU64LE(slices);
p2pHeaders.AddField("AckedDataSize", ackedDataSize, "Acknowledged data size.", slices);
// Body
TransactionNode p2pContent = null;
if (chunkSize > 0)
{
p2pContent = new TransactionNode(p2pNode, "Content");
byte[] bytes = stream.ReadBytes((int)chunkSize, slices);
if (sessionID != 0)
{
p2pContent.AddField("Raw", bytes, StaticUtils.FormatByteArray(bytes), "Raw content.", slices);
}
else
{
p2pContent.AddTextField("MSNSLP", bytes, StaticUtils.DecodeUTF8(bytes), "MSNSLP data.", slices);
}
}
}
protected void SBParseMSG(PacketStream stream, TransactionNode payloadNode, int payloadLength)
{
List<PacketSlice> slices = new List<PacketSlice>(2);
string content = stream.PeekStringUTF8(payloadLength);
TransactionNode headersNode = new TransactionNode(payloadNode, "Headers");
int pos = content.IndexOf("\r\n\r\n");
string headers = content.Substring(0, pos);
string[] lines = headers.Split(new string[] { "\r\n" }, StringSplitOptions.RemoveEmptyEntries);
foreach (string line in lines)
{
stream.ReadBytes(StaticUtils.GetUTF8ByteCount(line), slices);
string[] tokens = line.Split(new char[] { ':' }, 2);
tokens[1] = tokens[1].TrimStart(new char[] { ' ' });
headersNode.AddField(tokens[0], tokens[1], "Message header field.", slices);
// Skip CRLF
stream.ReadBytes(2);
}
// Skip extra CRLF
stream.ReadBytes(2);
int bodyLength = payloadLength - StaticUtils.GetUTF8ByteCount(headers) - 4;
if (bodyLength > 0)
{
TransactionNode bodyNode = new TransactionNode(payloadNode, "Body");
string contentType = (string)headersNode.Fields["Content-Type"];
contentType = contentType.Split(new char[] { ';' }, 2)[0];
if (contentType == "application/x-msnmsgrp2p")
{
ReadNextP2PMessageChunk(stream, bodyNode);
UInt32 appID = stream.ReadU32BE(slices);
bodyNode.AddField("AppID", appID, "Application ID.", slices);
}
else if (contentType == "text/x-msmsgsinvite")
{
string bodyStr = stream.ReadStringUTF8(bodyLength, slices);
bodyNode.AddTextField("Body", bodyStr, "Invite body.", slices);
}
else
{
string bodyStr = stream.ReadStringUTF8(bodyLength, slices);
bodyNode.AddField("Body", bodyStr, "Body.", slices);
}
}
}
private TransactionNode ReadNextP2PDirectMessage(PacketStream stream, string name)
{
TransactionNode msgNode = new TransactionNode(name);
msgNode.Description = msgNode.Name;
List<PacketSlice> slices = new List<PacketSlice>(1);
uint len = stream.ReadU32LE(slices);
msgNode.AddField("MSNP2PLength", len, "P2P message chunk length.", slices);
ReadNextP2PMessageChunk(stream, msgNode);
return msgNode;
}
private TransactionNode ExtractTNSData(PacketStream stream, StreamDirection direction)
{
TransactionNode node;
OracleTransactionType type;
List<PacketSlice> slices = new List<PacketSlice>();
Int16 pLen = 0;
int packetType;
try {
pLen = stream.PeekInt16();
stream.ReadBytes(2, slices);
stream.ReadBytes(2); //skip checksum
packetType = stream.ReadByte();
type = (OracleTransactionType)packetType;
stream.ReadByte(); //skip the reserved byte
} catch (Exception e) {
logger.AddMessage(e.Message);
return null;
}
switch (type) {
case OracleTransactionType.CONNECT:
try {
node = new TransactionNode("Connect");
node.AddField("Packet Size", pLen, "Packet Size", slices);
Int16 headerChecksum = stream.ReadInt16();
Int16 version = stream.PeekInt16();
stream.ReadBytes(2, slices);
node.AddField("Version", version, "Version", slices);
Int16 compatVersion = stream.PeekInt16();
stream.ReadBytes(2, slices);
node.AddField("Version (compatible)", compatVersion, "Compatible Version", slices);
Int16 serviceOptions = stream.ReadInt16();
Int16 sessionDataUnitSize = stream.ReadInt16();
Int16 maxTxDataUnitSize = stream.ReadInt16();
Int16 NTProtCharacteristics = stream.ReadInt16();
Int16 lineTurnValue = stream.ReadInt16();
Int16 valueOfOneInHW = stream.ReadInt16();
Int16 ctDataLen = stream.PeekInt16();
stream.ReadBytes(2, slices);
node.AddField("Data Length", ctDataLen, "The length of the connect datastring.", slices);
Int16 ctDataOffset = stream.ReadInt16();
Int16 maxRecCtData = stream.ReadInt16();
Int16 ctFlagsA = stream.ReadInt16();
Int16 ctFlagsB = stream.ReadInt16();
Int32 traceItemA = stream.ReadInt32();
Int32 traceItemB = stream.ReadInt32();
Int64 traceID = stream.ReadInt64();
stream.ReadInt64();
byte[] ctData = stream.PeekBytes(ctDataLen);
string connectData = StaticUtils.DecodeASCII(ctData);
stream.ReadBytes(ctDataLen, slices);
node.AddField("Connect data", connectData, "Connect data", slices);
try {
Match match = Regex.Match(connectData, "\\(PROTOCOL=(?<proto>\\w{2,})\\)\\(HOST=(?<host>[.\\w]{7,})\\)\\(PORT=(?<port>\\d{2,})\\)\\).*SERVICE_NAME=(?<sid>[.\\w]{1,})\\)");
string proto = match.Groups["proto"].Value;
string host = match.Groups["host"].Value;
string newPort = match.Groups["port"].Value;
string sid = match.Groups["sid"].Value;
TransactionNode cInfoNode = new TransactionNode("Connection Info");
cInfoNode.AddField("Protocol", proto, "Protocol", slices);
cInfoNode.AddField("Host", host, "Server being connected to", slices);
cInfoNode.AddField("Port", newPort, "Port", slices);
cInfoNode.AddField("Service", sid, "Service", slices);
node.AddChild(cInfoNode);
} catch (ArgumentException) {
}
return node;
} catch (Exception e) {
logger.AddMessage(e.Message);
return null;
}
case OracleTransactionType.ACCEPT:
node = new TransactionNode("Accept");
node.AddField("Packet Size", pLen, "Packet Size", slices);
try {
Int16 headerChecksum = stream.ReadInt16();
Int16 version = stream.PeekInt16();
stream.ReadBytes(2, slices);
node.AddField("Version", version, "Version", slices);
Int16 serviceOptions = stream.ReadInt16();
Int16 sessionDataUnitSize = stream.PeekInt16();
stream.ReadBytes(2, slices);
node.AddField("Session Data Unit Size", sessionDataUnitSize, "Session Data Unit Size", slices);
Int16 maxTxDataUnitSize = stream.PeekInt16();
stream.ReadBytes(2, slices);
node.AddField("Max Tx Unit Size", maxTxDataUnitSize, "Maximum Transmission Data Unit Size", slices);
Int16 valueOfOneInHW = stream.ReadInt16();
Int16 acceptDataLength = stream.ReadInt16();
Int16 dataOffset = stream.ReadInt16();
int connectFlagsA = stream.ReadByte();
int connectFlagsB = stream.ReadByte();
stream.ReadBytes(pLen - 24); //read out empty bytes
} catch (Exception e) {
logger.AddMessage(e.Message);
return null;
}
return node;
case OracleTransactionType.REDIRECT:
node = new TransactionNode("Redirect");
node.AddField("Packet Size", pLen, "Packet Size", slices);
try {
Int16 headerChecksum = stream.ReadInt16();
Int16 redirLen = stream.PeekInt16();
stream.ReadBytes(2, slices);
node.AddField("Redirection Data Length", redirLen, "Length of the redirection data string", slices);
byte[] redirData = stream.PeekBytes(redirLen);
string sRedir = StaticUtils.DecodeASCII(redirData);
stream.ReadBytes(redirLen, slices);
node.AddField("Redirection Data", sRedir, "Redirection data", slices);
//get the redirected port
string newPort = null;
string proto = null;
string host = null;
try {
Match match = Regex.Match(sRedir, "\\(PROTOCOL=(?<proto>\\w{2,})\\)\\(HOST=(?<host>[.\\w]{7,})\\)\\(PORT=(?<port>\\d{2,})\\)\\)");
proto = match.Groups["proto"].Value;
host = match.Groups["host"].Value;
newPort = match.Groups["port"].Value;
} catch (ArgumentException) {
// Syntax error in the regular expression
}
if(!newPort.Equals(""))
redirPort = Int32.Parse(newPort);
TransactionNode redirInfo = new TransactionNode("Redirection Info");
redirInfo.AddField("Protocol", proto, "Protocol used", slices);
redirInfo.AddField("Host", host, "Host", slices);
redirInfo.AddField("Port", newPort, "Port", slices);
node.AddChild(redirInfo);
} catch (Exception e) {
logger.AddMessage(e.Message);
return null;
}
return node;
case OracleTransactionType.DATA:
string label;
if (direction == StreamDirection.IN)
label = "Response";
else
label = "Request";
node = new TransactionNode("Data - "+label );
node.AddField("Packet Size", pLen, "Packet Size", slices);
try {
Int16 headerChecksum = stream.ReadInt16();
Int16 dataFlags = stream.ReadInt16();
int payLoadLength = pLen - 10;
byte[] payLoad = stream.PeekBytes(payLoadLength);
string sPayload = StaticUtils.DecodeASCII(payLoad);
stream.ReadBytes(payLoadLength, slices);
node.AddField("Data", sPayload, "Data", slices);
} catch (Exception e) {
logger.AddMessage(e.Message);
return null;
}
return node;
default:
logger.AddMessage(String.Format("Packet dissection not implemented [TransactionType={0}]", type));
return null;
}
}
private TransactionNode ExtractHttpData(PacketStream stream, HTTPTransactionType type, string nodeName)
{
if (nodeName == null)
{
nodeName = (type == HTTPTransactionType.REQUEST) ? "Request" : "Response";
}
TransactionNode node = new TransactionNode(nodeName);
List<PacketSlice> slices = new List<PacketSlice>();
string line = stream.PeekLineUTF8();
int fieldCount = (type == HTTPTransactionType.REQUEST) ? 3 : 2;
string[] tokens = line.Split(new char[] { ' ' }, fieldCount);
if (tokens.Length < fieldCount)
throw new ProtocolError();
if (type == HTTPTransactionType.REQUEST)
{
stream.ReadBytes(StaticUtils.GetUTF8ByteCount(tokens[0]), slices);
node.AddField("Verb", tokens[0], "Request verb.", slices);
stream.ReadByte();
stream.ReadBytes(StaticUtils.GetUTF8ByteCount(tokens[1]), slices);
node.AddField("Argument", tokens[1], "Request argument.", slices);
stream.ReadByte();
stream.ReadBytes(StaticUtils.GetUTF8ByteCount(tokens[2]), slices);
node.AddField("Protocol", tokens[2], "Protocol identifier.", slices);
// Set a description
node.Description = String.Format("{0} {1}", tokens[0], tokens[1]);
if (node.Description.Length > MAX_DESCRIPTION_LENGTH)
{
node.Description = node.Description.Substring(0, MAX_DESCRIPTION_LENGTH - ellipsis.Length);
node.Description += ellipsis;
}
}
else
{
stream.ReadBytes(StaticUtils.GetUTF8ByteCount(tokens[0]), slices);
node.AddField("Protocol", tokens[0], "Protocol identifier.", slices);
if (tokens.Length > 1)
{
stream.ReadByte();
stream.ReadBytes(StaticUtils.GetUTF8ByteCount(tokens[1]), slices);
node.AddField("Result", tokens[1], "Result.", slices);
}
// Set a description
string result = tokens[1];
if (result.Length > MAX_DESCRIPTION_LENGTH)
{
result = result.Substring(0, MAX_DESCRIPTION_LENGTH - ellipsis.Length) + ellipsis;
}
node.Description = result;
}
stream.ReadBytes(2);
TransactionNode headersNode = new TransactionNode("Headers");
Dictionary<string, string> headerFields = new Dictionary<string, string>();
do
{
line = stream.PeekLineUTF8();
if (line.Length > 0)
{
tokens = line.Split(new char[] { ':' }, 2);
if (tokens.Length < 2)
throw new ProtocolError();
string key = tokens[0];
string value = tokens[1].TrimStart();
stream.ReadBytes(StaticUtils.GetUTF8ByteCount(line), slices);
headersNode.AddField(key, value, "Header field.", slices);
headerFields[key.ToLower()] = value;
}
stream.ReadBytes(2);
} while (line != "");
if (headersNode.Fields.Count > 0)
{
node.AddChild(headersNode);
}
int contentLen = -1;
if (headerFields.ContainsKey("content-length"))
contentLen = Convert.ToInt32(headerFields["content-length"]);
else if (headerFields.ContainsKey("contentlength"))
contentLen = Convert.ToInt32(headerFields["contentlength"]);
if (contentLen != -1)
{
string contentType = null, contentEncoding = null;
if (headerFields.ContainsKey("content-type"))
contentType = headerFields["content-type"];
else if (headerFields.ContainsKey("contenttype"))
contentType = headerFields["contenttype"];
if (contentType != null)
{
contentType = contentType.ToLower();
tokens = contentType.Split(new char[] { ';' });
contentType = tokens[0].Trim();
if (tokens.Length > 1)
{
string[] encTokens = tokens[1].Split(new char[] { '=' }, 2);
if (encTokens[0].Trim() == "charset" && encTokens.Length > 1)
{
contentEncoding = encTokens[1];
}
}
}
string str = stream.PeekStringASCII(5);
if (str == "<?xml")
{
contentType = "text/xml";
contentEncoding = "utf-8"; // FIXME
}
if (contentLen > 0)
{
AddBodyNode(stream, node, contentType, contentEncoding, contentLen);
}
}
return node;
}
private TransactionNode ExtractHttpData(PacketStream stream, HTTPTransactionType type)
{
return ExtractHttpData(stream, type, null);
}
protected void AddBodyNode(PacketStream stream,
TransactionNode transactionNode,
string contentType,
string contentEncoding,
int bodyLen)
{
List<PacketSlice> slices = new List<PacketSlice>(1);
TransactionNode bodyNode = new TransactionNode("Body");
byte[] body = stream.ReadBytes(bodyLen, slices);
if (contentType == "text/html" || contentType == "text/xml")
{
int realBodyLen = body.Length;
if (body[realBodyLen - 1] == '\0')
realBodyLen--;
Decoder dec;
if (contentEncoding == "utf-8")
{
dec = Encoding.UTF8.GetDecoder();
}
else
{
dec = Encoding.ASCII.GetDecoder();
}
char[] bodyChars = new char[dec.GetCharCount(body, 0, realBodyLen)];
dec.GetChars(body, 0, realBodyLen, bodyChars, 0);
string bodyStr = new string(bodyChars);
if (contentType == "text/xml")
bodyNode.AddXMLField("XML", bodyStr, "Body XML data.", slices);
else
bodyNode.AddTextField("HTML", bodyStr, "Body HTML data.", slices);
}
else if (contentType == "application/vnd.ms-sync.wbxml")
{
string xml = WBXML.ConvertToXML(body);
bodyNode.AddXMLField("WBXML", xml, "Body WBXML data.", slices);
}
else
{
bodyNode.AddField("Raw", body, StaticUtils.FormatByteArray(body),
"Raw body data.", slices);
}
transactionNode.AddChild(bodyNode);
}