[jcifs] Issues connecting with DFS server

[M. D.]

 Hello,

I also noticed this exception regularly occuring in the logs:

Caused by: jcifs.smb.SmbException: Transport38 timedout waiting for response to SmbComSessionSetupAndX[command=SMB_COM_SESSION_SETUP_ANDX,received=false,errorCode=0,flags=0x0018,flags2=0xC803,signSeq=0,tid=0,pid=29747,uid=0,mid=12322,wordCount=12,byteCount=107,andxCommand=0xFF,andxOffset=0,snd_buf_size=16644,maxMpxCount=10,VC_NUMBER=1,sessionKey=0,lmHash.length=0,ntHash.length=0,capabilities=-2147479468,accountName=null,primaryDomain=null,NATIVE_OS=Windows Server 2008 R2,NATIVE_LANMAN=jCIFS]
jcifs.util.transport.TransportException: Transport38 timedout waiting for response to SmbComSessionSetupAndX[command=SMB_COM_SESSION_SETUP_ANDX,received=false,errorCode=0,flags=0x0018,flags2=0xC803,signSeq=0,tid=0,pid=29747,uid=0,mid=12322,wordCount=12,byteCount=107,andxCommand=0xFF,andxOffset=0,snd_buf_size=16644,maxMpxCount=10,VC_NUMBER=1,sessionKey=0,lmHash.length=0,ntHash.length=0,capabilities=-2147479468,accountName=null,primaryDomain=null,NATIVE_OS=Windows Server 2008 R2,NATIVE_LANMAN=jCIFS]
	at jcifs.util.transport.Transport.sendrecv(Transport.java:73)
	at jcifs.smb.SmbTransport.send(SmbTransport.java:658)
	at jcifs.smb.SmbSession.sessionSetup(SmbSession.java:390)
	at jcifs.smb.SmbSession.send(SmbSession.java:218)
	at jcifs.smb.SmbTree.treeConnect(SmbTree.java:176)
	at jcifs.smb.SmbSession.logon(SmbSession.java:147)
	at jcifs.smb.SmbSession.logon(SmbSession.java:140)


The issue is occuring randomly and although most of the pollings are successful sometimes these exceptions are thrown and the polling fails.

Any help will be appreciated!

Best regards,
M.D

 >-------- Оригинално писмо --------
 >От:   M. D.  
 >Относно: Re: [jcifs] Issues connecting with DFS server
 >До: jcifs at lists.samba.org
 >Изпратено на: Петък, 2014, Октомври 10 14:07:33 EEST
 >
 >
 > Hello,
 >
 >I was wondering if this problem was solved. I'm experiencing the same particular issue:
 >
 >Caused by: jcifs.smb.SmbException: Invalid operation for ????? service
 >	at jcifs.smb.SmbTree.send(SmbTree.java:100)
 >	at jcifs.smb.SmbFile.send(SmbFile.java:775)
 >	at jcifs.smb.SmbFile.queryPath(SmbFile.java:1363)
 >	at jcifs.smb.SmbFile.exists(SmbFile.java:1417)
 >
 >> That error:
 >
 >>   Invalid operation for ????? service at
 >> jcifs.smb.SmbTree.send(SmbTree.java:100)
 >
 >> means that the client received an SmbComTransaction response
 >> subCommand that JCIFS doesn't understand.
 >
 >> If you can provide a capture, I might be able to tell you more (do not
 >> post packet captures to the mailing list).
 >
 >Captures will follow.
 >
 >P.S. If it is of any help - I'm querying DFS shares.
 >
 >Best regards,
 >M.D
 >