Windows authentication does not work about smblibrary

[TalAloni]

Hi,
I was not able to recreate this, I tried with Windows 7 SP1 (no hot-fixes installed)
I can map and connect to the network drive successfully.
Is this error specific to mapping a network drive? are you able to connect when browsing to same UNC path?
Please try to assist me in uncovering the root cause of this issue.
For example, please try to test with a freshly installed Windows 7 SP1.

[ialiashkevich]

I am running in corporate domain environment, cannot change my workstation.
But I serialized some objects to JSON and printed to debug output. I have two use-cases:
(Please let me know if I can provide some more information to assist you)

Use-Case #1: Mapping network drive from the same PC that runs SMBServer:

LogToServer: [169.254.190.77:21566] New connection request
LogToServer: [169.254.190.77:21566] Entering ProcessSendQueue
LogToServer: [169.254.190.77:21566] SMB2 request chain received: 1 requests, First request: Negotiate, Packet length: 108
LogToServer: [169.254.190.77:21566] SMB2 response chain queued: Response count: 1, First response: Negotiate, Packet length: 162
LogToServer: [169.254.190.77:21566] SMB2 request chain received: 1 requests, First request: SessionSetup, Packet length: 220
SessionSetupRequest: {"StructureSize":25,"Flags":0,"SecurityMode":1,"Capabilities":1,"Channel":0,"PreviousSessionId":0,"SecurityBuffer":[96,126,6,6,43,6,1,5,5,2,160,116,48,114,160,48,48,46,6,10,43,6,1,4,1,130,55,2,2,10,6,9,42,134,72,130,247,18,1,2,2,6,9,42,134,72,134,247,18,1,2,2,6,10,43,6,1,4,1,130,55,2,2,30,162,62,4,60,78,84,76,77,83,83,80,0,1,0,0,0,151,178,8,226,9,0,9,0,51,0,0,0,11,0,11,0,40,0,0,0,6,1,177,29,0,0,0,15,80,87,76,45,77,73,83,45,52,53,49,80,79,87,69,76,76,73,78,68],"Header":{"ProtocolId":[254,83,77,66],"StructureSize":64,"CreditCharge":1,"Status":0,"Command":1,"Credits":1,"Flags":0,"NextCommand":0,"MessageID":1,"Reserved":65279,"TreeID":0,"AsyncID":0,"SessionID":0,"Signature":null,"IsResponse":false,"IsAsync":false,"IsRelatedOperations":false,"IsSigned":false},"CommandLength":152,"CommandName":1,"Length":216}
NegotiateMessage: {"Signature":"NTLMSSP\u0000","MessageType":1,"NegotiateFlags":3792220823,"DomainName":"POWELLIND","Workstation":"PWL-MIS-451","Version":{"ProductMajorVersion":6,"ProductMinorVersion":1,"ProductBuild":7601,"NTLMRevisionCurrent":15}}
ChallengeMessage: {"MessageType":2,"NegotiateFlags":3800662549,"ServerChallenge":[75,163,125,16,85,158,35,217],"Signature":"NTLMSSP\u0000","TargetInfo":[2,0,18,0,80,0,79,0,87,0,69,0,76,0,76,0,73,0,78,0,68,0,1,0,22,0,80,0,87,0,76,0,45,0,77,0,73,0,83,0,45,0,52,0,53,0,49,0,4,0,26,0,80,0,79,0,87,0,69,0,76,0,76,0,73,0,78,0,68,0,46,0,80,0,82,0,73,0,3,0,50,0,80,0,87,0,76,0,45,0,77,0,73,0,83,0,45,0,52,0,53,0,49,0,46,0,80,0,79,0,87,0,69,0,76,0,76,0,73,0,78,0,68,0,46,0,80,0,82,0,73,0,5,0,26,0,80,0,79,0,87,0,69,0,76,0,76,0,73,0,78,0,68,0,46,0,80,0,82,0,73,0,7,0,8,0,240,221,248,181,242,211,210,1,0,0,0,0],"TargetName":"POWELLIND","Version":{"ProductMajorVersion":6,"ProductMinorVersion":1,"ProductBuild":7601,"NTLMRevisionCurrent":15}}
response(SMB2Command): {"StructureSize":9,"SessionFlags":0,"SecurityBuffer":[161,129,25,48,129,21,160,3,10,1,1,161,12,6,10,43,6,1,4,1,130,55,2,2,10,162,129,255,4,129,252,78,84,76,77,83,83,80,0,2,0,0,0,18,0,18,0,56,0,0,0,21,130,137,226,75,163,125,16,85,158,35,217,0,0,0,0,0,0,0,0,178,0,178,0,74,0,0,0,6,1,177,29,0,0,0,15,80,0,79,0,87,0,69,0,76,0,76,0,73,0,78,0,68,0,2,0,18,0,80,0,79,0,87,0,69,0,76,0,76,0,73,0,78,0,68,0,1,0,22,0,80,0,87,0,76,0,45,0,77,0,73,0,83,0,45,0,52,0,53,0,49,0,4,0,26,0,80,0,79,0,87,0,69,0,76,0,76,0,73,0,78,0,68,0,46,0,80,0,82,0,73,0,3,0,50,0,80,0,87,0,76,0,45,0,77,0,73,0,83,0,45,0,52,0,53,0,49,0,46,0,80,0,79,0,87,0,69,0,76,0,76,0,73,0,78,0,68,0,46,0,80,0,82,0,73,0,5,0,26,0,80,0,79,0,87,0,69,0,76,0,76,0,73,0,78,0,68,0,46,0,80,0,82,0,73,0,7,0,8,0,240,221,248,181,242,211,210,1,0,0,0,0,0,0],"Header":{"ProtocolId":[254,83,77,66],"StructureSize":64,"CreditCharge":0,"Status":3221225494,"Command":1,"Credits":0,"Flags":1,"NextCommand":0,"MessageID":1,"Reserved":0,"TreeID":0,"AsyncID":0,"SessionID":1,"Signature":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"IsResponse":true,"IsAsync":false,"IsRelatedOperations":false,"IsSigned":false},"CommandLength":293,"CommandName":1,"Length":357}
LogToServer: [169.254.190.77:21566] SMB2 response chain queued: Response count: 1, First response: SessionSetup, Packet length: 361
Exception thrown: 'System.Net.Sockets.SocketException' in System.dll
An existing connection was forcibly closed by the remote host

Use-Case #2: Mapping network drive from remote PC:
It fails with NullReference exception because SMB2ConnectionState.AuthenticationContext is NULL.

LogToServer: [172.18.10.20:55525] SMB2 request chain received: 1 requests, First request: Negotiate, Packet length: 108
LogToServer: [172.18.10.20:55525] Entering ProcessSendQueue
LogToServer: [172.18.10.20:55525] SMB2 response chain queued: Response count: 1, First response: Negotiate, Packet length: 162
LogToServer: [172.18.10.20:55525] SMB2 request chain received: 1 requests, First request: SessionSetup, Packet length: 2118
SessionSetupRequest: {"StructureSize":25,"Flags":0,"SecurityMode":1,"Capabilities":1,"Channel":0,"PreviousSessionId":0,"SecurityBuffer":[96,130,7,230,6,6,43,6,1,5,5,2,160,130,7,218,48,130,7,214,160,48,48,46,6,9,42,134,72,130,247,18,1,2,2,6,9,42,134,72,134,247,18,1,2,2,6,10,43,6,1,4,1,130,55,2,2,30,6,10,43,6,1,4,1,130,55,2,2,10,162,130,7,160,4,130,7,156,96,130,7,152,6,9,42,134,72,134,247,18,1,2,2,1,0,110,130,7,135,48,130,7,131,160,3,2,1,5,161,3,2,1,14,162,7,3,5,0,32,0,0,0,163,130,6,14,97,130,6,10,48,130,6,6,160,3,2,1,5,161,15,27,13,80,79,87,69,76,76,73,78,68,46,80,82,73,162,44,48,42,160,3,2,1,2,161,35,48,33,27,4,99,105,102,115,27,25,80,87,76,45,77,73,83,45,52,53,49,46,80,79,87,69,76,76,73,78,68,46,80,82,73,163,130,5,190,48,130,5,186,160,3,2,1,18,161,3,2,1,63,162,130,5,172,4,130,5,168,87,212,25,141,174,95,103,49,246,118,88,131,226,147,63,96,122,4,215,86,192,83,83,53,24,119,5,50,241,200,61,7,233,148,160,64,91,209,68,106,225,22,212,64,143,173,45,91,38,74,80,63,238,112,29,123,193,198,191,60,148,130,104,101,89,114,27,1,224,10,204,13,151,119,80,117,92,118,182,199,18,148,10,233,28,86,250,217,92,106,71,100,75,157,23,255,94,245,199,175,89,223,65,205,37,204,131,132,168,217,23,209,39,186,44,116,234,40,3,242,184,157,93,49,156,29,234,218,181,129,148,221,179,35,125,103,15,106,54,70,208,231,208,27,112,69,228,241,239,171,33,154,29,206,83,120,187,201,10,156,135,9,4,212,189,233,36,247,94,104,171,68,72,188,92,232,120,228,63,101,222,138,142,203,124,180,31,250,41,26,152,198,139,34,47,38,246,88,243,136,245,114,200,11,155,171,248,47,237,52,24,191,105,8,46,111,224,59,15,75,119,41,72,171,106,221,195,134,23,137,148,241,164,93,184,143,216,204,161,205,34,59,231,206,113,230,136,155,80,144,68,4,208,220,222,116,188,136,171,187,65,198,167,13,21,15,248,166,2,134,172,122,18,196,125,155,165,175,208,181,223,220,72,99,57,148,145,33,217,95,48,182,39,58,2,138,129,15,209,127,244,62,115,71,150,233,210,176,140,227,46,125,0,167,241,202,114,222,178,246,229,156,238,87,99,141,8,198,79,204,75,123,50,125,118,136,176,141,106,92,79,126,95,50,23,29,221,233,32,93,54,28,0,38,167,62,36,23,40,37,17,46,41,103,209,10,32,188,109,71,232,223,77,245,37,160,127,123,61,251,67,166,254,181,125,170,213,68,214,7,239,93,99,196,187,148,162,171,72,140,217,138,152,163,238,89,219,248,177,235,46,243,128,71,31,62,171,49,54,186,22,210,150,10,193,76,221,126,155,170,115,243,43,232,60,77,11,209,15,107,242,39,212,232,3,83,151,179,89,184,36,250,70,175,16,145,111,17,166,153,162,163,151,53,169,36,80,47,114,39,58,67,148,250,215,73,32,70,203,66,52,226,131,226,120,36,243,135,234,179,207,242,186,63,169,133,226,111,130,6,253,116,8,202,200,132,9,226,195,86,63,27,0,84,122,254,85,2,247,204,187,222,85,102,84,181,255,141,135,145,207,160,31,228,173,124,48,150,209,120,16,57,226,104,32,161,130,221,19,129,253,14,25,142,99,180,159,126,146,40,104,221,235,217,130,103,101,160,80,139,39,31,104,159,231,86,125,94,133,21,109,117,181,216,109,50,231,242,218,186,89,29,88,136,55,77,89,128,177,79,150,121,20,25,203,240,211,127,98,244,92,169,146,208,245,128,252,12,253,26,178,30,228,161,38,80,51,238,148,166,49,67,176,220,237,74,2,249,193,83,145,165,5,11,117,233,127,14,56,5,40,235,166,137,136,174,117,58,169,227,15,43,55,87,72,174,226,144,110,234,234,116,101,150,109,133,92,46,158,243,58,70,51,13,158,47,164,169,53,202,20,167,12,153,67,35,0,194,17,183,30,53,15,121,128,65,193,35,82,254,161,85,182,152,161,27,142,251,195,240,151,33,68,3,137,203,84,224,53,192,241,118,162,44,111,237,168,216,1,46,5,176,152,157,71,22,209,64,72,236,182,76,90,129,4,27,36,172,77,3,139,170,79,79,145,190,52,55,98,166,129,42,89,145,195,92,19,192,167,88,51,127,70,253,242,45,48,205,153,16,215,74,206,139,168,207,55,10,93,168,248,100,175,157,206,249,101,189,91,75,91,224,69,155,139,84,202,4,109,184,241,20,120,138,51,120,245,252,255,245,214,229,18,168,239,214,140,149,58,141,19,87,148,98,164,192,55,126,127,151,69,84,169,31,26,65,20,241,106,248,5,35,28,95,227,21,21,179,181,108,159,135,70,67,229,63,76,46,177,43,88,11,27,39,60,35,159,64,93,127,75,213,43,189,60,92,5,107,20,192,203,179,48,175,152,227,108,72,225,238,55,217,249,206,249,26,222,153,123,134,103,234,136,163,209,82,179,131,24,115,172,143,244,206,255,38,18,157,255,205,109,215,232,51,115,48,250,154,147,124,41,238,112,104,43,141,37,104,160,44,17,120,112,23,34,111,224,55,255,4,125,192,215,249,231,182,169,150,145,128,13,36,255,19,44,128,2,253,233,209,4,101,115,86,9,82,225,239,104,100,177,45,57,128,81,192,92,14,196,154,194,244,94,132,205,185,14,80,233,146,103,42,238,232,76,134,21,18,78,203,164,152,219,16,220,194,90,255,150,68,63,63,227,124,248,221,250,140,242,31,196,91,225,197,227,252,26,59,158,14,207,103,25,70,95,165,29,60,228,152,184,239,147,214,72,250,190,173,147,49,195,251,141,75,235,221,46,31,52,4,184,244,90,128,167,78,33,236,225,84,231,83,125,87,35,206,248,79,66,176,50,36,220,53,196,58,49,184,99,114,99,159,111,86,209,204,177,27,34,40,20,211,118,68,231,18,119,182,43,154,24,27,163,247,138,23,187,215,167,7,52,171,179,220,159,89,28,141,66,97,187,16,36,165,237,208,163,203,194,181,229,202,232,25,10,178,225,197,209,68,179,66,99,21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Please let me know if I can provide some more information to assist you.

[TalAloni]

Thanks for the detailed logs, they have been very helpful.
I was able to identify two issues with my authentication code, and I have committed the necessary fixes.

I was not able to properly test some of the updated code (and not for lack of trying), so it would be very helpful if you could test the two use-cases (against the updated code) and report back.

[TalAloni]

I was able to recreate this today and I have made the necessary corrections to the authentication code.

[TalAloni]

The corrections are included in v1.2.0