[jcifs] Large Write_Andx messages

[Mikael Klamra]

Hi,
Who submitted the patch for large read and write messages
(LargeReadWrite.patch)? I have some questions about it.

Mikael


On 10/29/07, Michael B Allen <miallen at ioplex.com> wrote:
> Search the archives.
>
> On Mon, 29 Oct 2007 14:25:23 +0100
> "Mikael Klamra" <mklamra at gmail.com> wrote:
>
> > Hi Mike,
> > Thanks for your tip. I've checked the patch, but it's quite hard to
> > retrieve the necessary information from a diff. Do you know who
> > submitted the patch or how I can find out that?
> >
> > Mikael
> >
> >
> > On 10/29/07, Michael B Allen <miallen at ioplex.com> wrote:
> > > On Sun, 28 Oct 2007 21:18:06 +0100
> > > "Mikael Klamra" <mklamra at gmail.com> wrote:
> > >
> > > > Hi,
> > > > I'm implementing a CIFS client. I have some problems with WRITE_ANDX
> > > > messages that I hope someone can help me with. The negotiated maximum
> > > > buffer size between my client and the server (a Windows Server 2003
> > > > R2) is 4356 bytes. I have set the CAP_LARGE_WRITEX and CAP_LARGE_READX
> > > > bits in the client's capabilities, which means that a WRITE_ANDX
> > > > message from the client can be up to 64 KB. However, I get
> > > > a non-specific error (ERRSRV/ERRerror) back from the server when I try
> > > > to send a WRITE_ANDX message with two or more blocks when the total
> > > > message size is about 4700 bytes or greater. It works without problems
> > > > when the message size is small. Are there any obscure rules for
> > > > WRITE_ANDX messages, such as padding rules? I've aligned the data
> > > > buffer of each block to the nearest 4-byte boundary. Do I have to
> > > > align the beginning of each block too? I'm using the 12-byte WordCount
> > > > version of WRITE_ANDX.
> > > >
> > > > I have tried to sniff similar messages between Windows XP and Windows
> > > > Server 2003 R2, but Windows does not seem to put several blocks in
> > > > WRITE_ANDX messages. Does jCIFS use WRITE_ANDX messages with several
> > > > blocks? If yes, how are the messages structured?
> > >
> > > Hi Mikael,
> > >
> > > I have no experience with the CAP_LARGE_* messages but someone submitted a
> > > patch for JCIFS to support them. The patch was never integrated but it is
> > > in the patches directory. Perhaps you can find what you need from studying
> > > it. Not sure if it still applies cleanly to the most recent JCIFS.
> > >
> > > Mike
> > >
> > > --
> > > Michael B Allen
> > > PHP Active Directory SPNEGO SSO
> > > http://www.ioplex.com/
> > >
> >
>
>
> --
> Michael B Allen
> PHP Active Directory SPNEGO SSO
> http://www.ioplex.com/
>