[jcifs] No Access Exception Question, It's working!!!

Michael B. Allen miallen at eskimo.com
Sat Jul 13 13:58:55 EST 2002 

On Fri, 12 Jul 2002 15:16:55 -0700
"Yibo Dong" <ydong at mail.arc.nasa.gov> wrote:

> Hi, Mike,
> 
> I finally got it working!!!
> 
> I think the latest error I was having was caused by not providing the
> correct parameter combination on both the named server and the jcifs
> client sides.

I did'nt think you could get "Access Denied" from an incorrect name server
parameter but ok, glad to hear it's working for you.

Mike

> 
> Thanks for your help and patience.
> 
> I am going to write a prototype now incorporating jcifs named pipe
> support. I may have other questions as I go forward. ;-)
> 
> Thanks again,
> 
> -Yibo
> 
> 
> > -----Original Message-----
> > From: Allen, Michael B (RSCH) [mailto:Michael_B_Allen at ml.com]
> > Sent: Thursday, July 11, 2002 4:13 PM
> > To: 'Yibo Dong'
> > Cc: Brian Johnson; jcifs at samba.org; ahitzeman at mail.arc.nasa.gov;
> > robert at intrinsyx.com; bmortimer at mail.arc.nasa.gov
> > Subject: RE: [jcifs] No Access Exception Question
> >
> >
> > This is very strange Yibo. I've ran the test against NT
> > successfully without a domain
> > parameter. I know other people are using named pipes
> > successfully. I just ran it on XP two
> > minutes ago just fine:
> >
> > $ java CallNamedPipe
> > smb://mydom\;miallen:mypass@172.24.10.33/IPC$/pipe/foo out in
> > writing 25 bytes
> > read 25 bytes
> >
> > Can you connect to that host with smbclient? Can you use jCIFS in
> > other ways using the
> > same credentials to just access a file? The only course of action
> > here is to start looking at
> > packet traces. Do you have network monitor or ethereal? Can you
> > send me a packet capture
> > (pcap) of the failing CallNamedPipe example connecting to
> > createnp.exe \\.\pipe\foo /P 0x6?
> >
> > > -----Original Message-----
> > > From:	Yibo Dong [SMTP:ydong at mail.arc.nasa.gov]
> > > Sent:	Thursday, July 11, 2002 6:48 PM
> > > To:	Allen, Michael B (RSCH)
> > > Cc:	Brian Johnson; jcifs at samba.org;
> > ahitzeman at mail.arc.nasa.gov; robert at intrinsyx.com;
> > bmortimer at mail.arc.nasa.gov
> > > Subject:	RE: [jcifs] No Access Exception Question
> > >
> > > Hi, Mike,
> > >
> > > I just tested jcifs on an NT machine and got the same Invalid Parameter
> > > error. It looks like that we can tentatively eliminate the possibility
> > > of a platform specific error. I also tried the property file with domain
> > > name being blank, with domain name entry being completely absent, it
> > > didn't make any difference. Is domain a required parameter? The
> > > comments and examples in SmbFile.java don't seem to say so.
> > >
> > > Other than the following smb url
> > >
> > > smb://domain;username:password@server/IPC$/pipe/name
> > >
> > > what other setups for the server that I should go through, such as DNS,
> > > WINS, etc., and specify them in the property file? Any other
> > > configurations I haven't mentioned that I need to examine? In
> > the example
> > > jcifs.prp, the resolveOrder(=WINS) seems to be commented out by the
> > > semicolon, is it true?
> > >
> > > Thanks,
> > >
> > > -Yibo
> > >
> > >
> > > -----Original Message-----
> > > From: Allen, Michael B (RSCH) [mailto:Michael_B_Allen at ml.com]
> > > Sent: Tuesday, July 09, 2002 3:30 PM
> > > To: 'Yibo Dong'
> > > Cc: Brian Johnson; jcifs at samba.org; ahitzeman at mail.arc.nasa.gov;
> > > robert at intrinsyx.com; bmortimer at mail.arc.nasa.gov
> > > Subject: RE: [jcifs] No Access Exception Question
> > >
> > >
> > >
> > >
> > > > -----Original Message-----
> > > > From:	Yibo Dong [SMTP:ydong at mail.arc.nasa.gov]
> > > > Sent:	Tuesday, July 09, 2002 5:27 PM
> > > > To:	Michael B. Allen
> > > > Cc:	Brian Johnson; jcifs at samba.org; ahitzeman at mail.arc.nasa.gov;
> > > robert at intrinsyx.com; bmortimer at mail.arc.nasa.gov
> > > > Subject:	RE: [jcifs] No Access Exception Question
> > > >
> > > > Hi, Mike,
> > > >
> > > > Thanks for checking it for me. No, I am not running on a
> > laptop without
> > > > an ethernet card attached. ydong is a desktop machine on our LAN.
> > > >
> > > > I am getting a different error now. Here is what I used:
> > > >
> > > > Server:
> > > >
> > > > createnp \\.\pipe\name
> > > >
> > > > Client:
> > > >
> > > > java CallNamedPipe -Djcifs.properties=jcifs.prp inFile.txt outFile.txt
> > > >
> > > > Jcifs.prp Content:
> > > >
> > > > domain=                  /* left blank since we don't have one */
> > > >
> > > 	I think this will make your domain an empty string. Not
> > sure what will
> > > happen in
> > > 	that scenario.
> > >
> > > > username=ydong
> > > > password=MyPassword
> > > > ;wins=143.232.153.176    /* IP address for ydong */
> > > > wins=143.232.153.176     /* ditto */
> > > > ;log=ALL
> > > > ;resolveOrder=WINS
> > > > ;soTimeout=3000
> > > >
> > > > Error I Am Getting:
> > > >
> > > > jcifs.smb.SmbException: Invalid parameter 	at
> > > > jcifs.smb.SmbTransport.sendTransaction(SmbTransport.java:628) 	at
> > > > jcifs.smb.SmbSession.sendTransaction(SmbSession.java:123) 	at
> > > > jcifs.smb.SmbTree.sendTransaction(SmbTree.java:65) 	at
> > > > jcifs.smb.SmbFile.sendTransaction(SmbFile.java:456) 	at
> > > >
> > >
> > jcifs.smb.TransactNamedPipeOutputStream.write(TransactNamedPipeOut
> > putStream.
> > > > java:62) 	at CallNamedPipe.main(CallNamedPipe.java:50)
> > Exception in thread
> > > > "main"
> > > >
> > > > It's not clear to me which parameter is invalid.
> > > >
> > > 	Wierd. Could be a strange interaction with Win2K. What
> > happens if you
> > > simply do not
> > > 	specify a domain. So you do not authenticate against a
> > domain or the target
> > > machine
> > > 	is not a member of a domain?
> > >
> > > > Interestingly, if I re-run the client at this point, I will get an
> > > > timeout error saying YDONG/143.232.153.176 is not responding, but if
> > > > I try to re-run createnp, I will get a 231 (pipe busy) error.
> > I have to
> > > > reboot the machine in order for createnp to work again.
> > > >
> > > 	That's just crappy handling of named pipes on Windoze. If
> > the named pipe
> > > using program
> > > 	exits without releasing the handle it can become a zombie.
> > You don't have
> > > to reboot
> > > 	though. Just go into Control Panel > Services and restart the Server
> > > Service.
> > >
> > > 	Someone just installed an XP machine nearby. I'll try it
> > with that when I
> > > get a chance. Try
> > > 	it against NT 4.0 just so you can rule out a
> > configuration/usage issue.
> > >
> > > > Thanks again for helping me.
> > > >
> > > > -Yibo
> > > >
> > > > -----Original Message-----
> > > > From: Michael B. Allen [mailto:miallen at eskimo.com]
> > > > Sent: Tuesday, July 09, 2002 12:49 PM
> > > > To: Yibo Dong
> > > > Cc: bmortimer at mail.arc.nasa.gov; robert at intrinsyx.com;
> > > > ahitzeman at mail.arc.nasa.gov; jcifs at samba.org
> > > > Subject: Re: [jcifs] No Access Exception Question
> > > >
> > > >
> > > > On Tue, 9 Jul 2002 11:22:45 -0700
> > > > "Yibo Dong" <ydong at mail.arc.nasa.gov> wrote:
> > > >
> > > > >
> > > > > Hi, Mike,
> > > > >
> > > > > Thanks for the quick response.
> > > > >
> > > > > I have tried all the possible combinations of createnp and client
> > > > > calls based on the instructions on
> > > > > http://jcifs.samba.org/src/docs/pipes.html
> > > > > but still got rather consistent Access Denied errors,
> > albeit at slight
> > > > > different locations each time in
> > > > > Jcifs.smb.SmbTransport.sendTransaction(SmbTransport.java)
> > call. Please
> > > see
> > > > > the attached for all the test
> > > > > details.
> > > > >
> > > > > My suspicion is that my configuration/setup for running
> > those tests is
> > > > > the culprit. But where?
> > > >
> > > > I  just  went through the CallNamedPipe example and it
> > worked. You know
> > > you
> > > > will  need  to  supply appropriate authentication creadentials. It's
> > > pretty
> > > > standard  for  GUEST  to  be  disabled  these  days. If you run the
> > > example
> > > > without  them  you  indeed  get  AccessDenied (natrually).
> > When you run
> > > the
> > > > callnp.exe example it works because it uses your creadentials from the
> > > LSA.
> > > > Try:
> > > >
> > > >   java CreateNamedPipe smb://ydong:mypass@host/IPC$/pipe/foo
> > input output
> > > >
> > > > Or use -Djcifs.properties=jcifs.prp and make a jcifs.prp with
> > > > username=ydong, password=mypass, ...etc.
> > > >
> > > > If this is not your problem then there might be a Win2K
> > specific issue.
> > > Are
> > > > you using a Laptop without an ethernet cable attached?
> > > >
> > > > >
> > > > > Any insights will be greatly appreciated.
> > > > >
> > > > > -Yibo
> > > > >
> > > > > P.S. I wonder if /P 0x5 you mentioned should have been /P 0x6?
> > > >
> > > > Right, /P 0x6.
> > > >
> > > > >
> > > > >
> > > > > -----Original Message-----
> > > > > From: Michael B. Allen [mailto:miallen at eskimo.com]
> > > > > Sent: Monday, July 08, 2002 11:22 AM
> > > > > To: Yibo Dong
> > > > > Cc: jcifs at samba.org
> > > > > Subject: Re: [jcifs] No Access Exception Question
> > > > >
> > > > >
> > > > > On Mon, 8 Jul 2002 10:01:53 -0700
> > > > > "Yibo Dong" <ydong at mail.arc.nasa.gov> wrote:
> > > > >
> > > > > >
> > > > > > Hi,
> > > > > >
> > > > > > I have downloaded your jcifs package and are using the
> > following pair
> > > in
> > > > > > a Windows 2000 environment (machine name: ydong, domain name: not
> > > used,
> > > > > > group name: CDS) to test:
> > > > > >
> > > > > > createnp \\.\pipe\name
> > > > > >
> > > > > > CallNamedPipe smb://ydong/IPC$/PIPE/name
> > c:\JCIFSTest\pipes\inFile.txt
> > > > > > c:\JCIFSTest\pipes\outFile.txt
> > > > > >
> > > > > > The call "out.write( b, 0, n )" in CalledNamedPipe.java
> > results in the
> > > > > > following access exception:
> > > > > >
> > > > > > jcifs.smb.SmbAuthException: Access denied 	at
> > > > > >
> > jcifs.smb.SmbTransport.sendTransaction(SmbTransport.java:626) 	at
> > > > > > jcifs.smb.SmbSession.sendTransaction(SmbSession.java:123) 	at
> > > > > > jcifs.smb.SmbTree.sendTransaction(SmbTree.java:65) 	at
> > > > > > jcifs.smb.SmbFile.sendTransaction(SmbFile.java:456) 	at
> > > > > >
> > > > >
> > > >
> > >
> > jcifs.smb.TransactNamedPipeOutputStream.write(TransactNamedPipeOut
> > putStream.
> > > > > > java:62) 	at
> > CallNamedPipe.main(CallNamedPipe.java:44) Exception in
> > > > thread
> > > > > > "main"
> > > > >
> > > > > With  the  CallNamedPipe  example  you  have  to  use the
> > /P 0x5 flags
> > > > with
> > > > > creatnp. That might help. See this page for complete
> > instructions on how
> > > > to
> > > > > run those examples:
> > > > >
> > > > >   http://jcifs.samba.org/src/docs/pipes.html
> > > > >
> > > > > Also,  just  a  note, the available() method of the
> > InputStream returned
> > > > by
> > > > > SmbNamedPipe.getNamedPipeInputStream  is  not  implemented.
> >  This  might
> > > > be
> > > > > necessary for certain types of I/O. It is very high on my todo list
> > > > though.
> > > > >
> > > > > Mike
> > > > >
> > > > > --
> > > > > http://www.eskimo.com/~miallen/c/jus.c
> > > > >
> > > >
> > > >
> > > > --
> > > > http://www.eskimo.com/~miallen/c/jus.c
> > > >
> > > >
> > >
> >
> 
> 


-- 
http://www.eskimo.com/~miallen/c/jus.c

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