Wireshark-bugs: [Wireshark-bugs] [Bug 10469] iSCSI dissector rejects PDUs with "expected data tr

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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Tue, 07 Oct 2014 04:40:51 +0000

Comment # 13 on bug 10469 from 
(In reply to Bill Meier from comment #12)
> > 
> > I went through the RFC and a couple of implementations, no else seems to be
> > imposing this restriction. Might be legacy code since the commit is from
> > 2006.
> 
> Looking at the commit message (for the patch which added the test), I now
> realize that the test was added to improve the "heuristic test" to verify
> that the packet is actually an iSCSI packet.
> 
> Question: would it be correct to say that the "expected data length" field
> for a SCSI_COMMAND must always be non-zero ?
> 
> If so, I'll change the code to test for a non-zero field.

Unfortunately no, it's a little more complicated than that.
> 
> > I'll post a fix for this
> 
> No need to post a patch. It's simple enough for me to make a change.

Sure, I was planning to add some expert_info stuff to iSCSI, so I can roll it
in there and save you the effort.

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