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Merged
merged 2 commits into from
Sep 24, 2022
Merged

20220923 server closes first #47

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0513163
SQLNA improvements for frame description
Malcolm-Stewart Sep 24, 2022
937b5e6
Reporting Improvements
Malcolm-Stewart Sep 24, 2022
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Binary file modified SQL_Network_Analyzer/.vs/SQLNetworkAnalyzer/v15/.suo
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54 changes: 51 additions & 3 deletions SQL_Network_Analyzer/SQLNA/ConversationData.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -75,6 +75,9 @@ public class ConversationData // - constructed in Get
public int resetCount = 0; // - accumulated in ParseTCPFrame - can be in combination with other flags
public int synCount = 0; // - accumulated in ParseTCPFrame - can be in combination with other flags
public int finCount = 0; // - accumulated in ParseTCPFrame - can be in combination with other flags
public bool hasClientFin = false; // - set in ParseTCPFrame
public bool hasServerFin = false; // - set in ParseTCPFrame
public bool hasServerFinFirst = false; // - set in ParseTCPFrame - used to determine whether the server closed the conversation
public int smpSynCount = 0; // - accumulated in ParseTCPFrame
public int smpAckCount = 0; // - accumulated in ParseTCPFrame
public int smpFinCount = 0; // - accumulated in ParseTCPFrame
Expand Down Expand Up @@ -202,7 +205,7 @@ public bool hasLoginFailure // TODO this needs work one of the OR-ed flags b
}
else
{
if (hasApplicationData == true && synCount == 0 && hasPrelogin == false && hasPreloginResponse == false &&
if (hasApplicationData == true && synCount == 0 && hasPrelogin == false && hasPreloginResponse == false &&
hasClientSSL == false && hasServerSSL == false && hasKeyExchange == false && hasCipherExchange == false &&
hasNTLMChallenge == false && hasNTLMResponse == false && frames.Count > (4 + 2 * keepAliveCount + rawRetransmits))
{
Expand All @@ -220,6 +223,20 @@ public bool hasLoginFailure // TODO this needs work one of the OR-ed flags b
}
}

//
// Did this conversation even manage to contact the server, let alone login.
// Needs at least one SYN packet to show the start of the conversation.
// Cannot have any PUSH flags for application payload.
// ACK + RESET + FIN are optionally allowed
//
public bool hasSynFailure
{
get
{
return (synCount > 0 && pushCount ==0);
}
}

public long LoginDelay(string step, long firstFrameTick) // times are in ticks, if prior packet time is unknown - timed to start of trace
{
long notPresent = (long)(-1 * utility.TICKS_PER_MILLISECOND); // this value means a blank in the report instead of a 0.
Expand All @@ -245,7 +262,7 @@ public bool hasLoginFailure // TODO this needs work one of the OR-ed flags b
if (SSPITime != 0) priorTick = SSPITime;
if (step == "NC") return NTLMChallengeTime == 0 ? notPresent : NTLMChallengeTime - priorTick;
if (NTLMChallengeTime != 0) priorTick = NTLMChallengeTime;
if (step == "NR") return NTLMResponseTime == 0 ? notPresent : NTLMResponseTime-priorTick;
if (step == "NR") return NTLMResponseTime == 0 ? notPresent : NTLMResponseTime - priorTick;
if (NTLMResponseTime != 0) priorTick = NTLMResponseTime;
if (step == "LA") return LoginAckTime == 0 ? notPresent : LoginAckTime - priorTick;
if (LoginAckTime != 0) priorTick = LoginAckTime;
Expand Down Expand Up @@ -376,12 +393,43 @@ public string loginFlags
(hasNTLMChallenge ? "NC " : " ") +
(hasNTLMResponse ? "NR " : " ") +
(hasSSPI ? "SS " : " ") +
(ErrorTime !=0 ? "ER" : " ");
(ErrorTime != 0 ? "ER" : " ");

return s;
}
}

public string GetPacketList(int start, int length)
{
string s = "";
for (int i = start; i < start + length; i++) s += ((FrameData)frames[i]).PacketTypeAndDirection + " ";
return s.TrimEnd();
}

public string GetLastPacketList(int length)
{
if (length > frames.Count)
{
return GetPacketList(0, frames.Count);
}
else
{
return GetPacketList(frames.Count - length, length);
}
}

public string GetFirstPacketList(int length)
{
if (length > frames.Count)
{
return GetPacketList(0, frames.Count);
}
else
{
return GetPacketList(0, length);
}
}

public string ColumnHeader1()
{
string s = "";
Expand Down
85 changes: 79 additions & 6 deletions SQL_Network_Analyzer/SQLNA/FrameData.cs
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Expand Up @@ -18,6 +18,33 @@ namespace SQLNA
// Should probably be in a side collection in each regular frame, so we do not bloat the conversation itself.
//

public enum FrameType
{
PreLogin = 1, // set in ProcessTDS
PreLoginResponse, // set in ProcessTDS
ClientHello, // set in ProcessTDS
ServerHello, // set in ProcessTDS
KeyExchange, // set in ProcessTDS
CipherChange, // set in ProcessTDS
ApplicationData, // set in ProcessTDS
Login7, // set in ProcessTDS - we should never see this in the raw, should be ApplicationData instead
SSPI, // set in ProcessTDS
NTLMChallenge, // set in ProcessTDS
NTLMResponse, // set in ProcessTDS
LoginAck, // set in ProcessTDS
LoginError, // set in ProcessTDS
Attention, // set in ProcessTDS
SQLBatch, // set in ProcessTDS
RPCRequest, // set in ProcessTDS
XactMgrRequest, // set in ProcessTDS
XActMgrReply, // placeholder
CommandError, // set in ProcessTDS
TabularResponse, // set in ProcessTDS
SMPAck, // set in ParseTCPFrame
SMPSyn, // set in ParseTCPFrame
SMPFin // set in ParseTCPFrame
}

public class FrameData // constructed in ParseOneFile
{
public ConversationData conversation = null; // set in ParseIPV4Frame and ParseIPV6Frame
Expand All @@ -36,6 +63,7 @@ public class FrameData // constructed in ParseOne
public ushort smpSession = 0; // set in ParseTCPFrame
public byte smpType = 0; // set in ParseTCPFrame
public byte[] payload = null; // set in ParseTCPFrame and ParseUDPFrame
public FrameType frameType = 0; // set in ProcessTDS
public bool isKeepAliveRetransmit = false; // set in FindKeepAliveRetransmits
public ushort kaRetransmitCount = 0; // set in FindKeepAliveRetransmits
public bool isRetransmit = false; // set in FindRetransmits
Expand Down Expand Up @@ -106,6 +134,51 @@ public bool hasRESETFlag
get { return (flags & (byte)TCPFlag.RESET) != 0; }
}

public string PacketType
{
get
{
switch (frameType)
{
case FrameType.ApplicationData: return "AD";
case FrameType.Attention: return "ATTN";
case FrameType.CipherChange: return "CE";
case FrameType.ClientHello: return "CH";
case FrameType.CommandError: return "ERR";
case FrameType.KeyExchange: return "KE";
case FrameType.Login7: return "L7";
case FrameType.LoginAck: return "LA";
case FrameType.LoginError: return "ER";
case FrameType.NTLMChallenge: return "NC";
case FrameType.NTLMResponse: return "NR";
case FrameType.PreLogin: return "PL";
case FrameType.PreLoginResponse: return "PR";
case FrameType.RPCRequest: return "RPC";
case FrameType.ServerHello: return "SH";
case FrameType.SMPAck: return "SmpA";
case FrameType.SMPFin: return "SmpF";
case FrameType.SMPSyn: return "SmpS";
case FrameType.SQLBatch: return "BAT";
case FrameType.SSPI: return "SS";
case FrameType.TabularResponse: return "DATA";
case FrameType.XactMgrRequest: return "TX";
default:
{
if (isKeepAlive) return "KA";
return FormatFlags("");
};
}
}
}

public string PacketTypeAndDirection
{
get
{
return (isFromClient ? ">" : "<") + PacketType;
}
}


public string ColumnHeader1()
{
Expand Down Expand Up @@ -163,14 +236,14 @@ public string ColumnData()
}
}

public string FormatFlags()
public string FormatFlags(string filler = ".")
{
string s = "";
s += ((flags & (byte)TCPFlag.ACK) != 0) ? "A" : ".";
s += ((flags & (byte)TCPFlag.PUSH) != 0) ? "P" : ".";
s += ((flags & (byte)TCPFlag.RESET) != 0) ? "R" : ".";
s += ((flags & (byte)TCPFlag.SYN) != 0) ? "S" : ".";
s += ((flags & (byte)TCPFlag.FIN) != 0) ? "F" : ".";
s += ((flags & (byte)TCPFlag.ACK) != 0) ? "A" : filler;
s += ((flags & (byte)TCPFlag.PUSH) != 0) ? "P" : filler;
s += ((flags & (byte)TCPFlag.RESET) != 0) ? "R" : filler;
s += ((flags & (byte)TCPFlag.SYN) != 0) ? "S" : filler;
s += ((flags & (byte)TCPFlag.FIN) != 0) ? "F" : filler;
return s;
}

Expand Down
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