Re: Trouble with mount.cifs while smbclient works (Ubuntu 12.04)

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Am Donnerstag, 17. Mai 2012, 20:29:25 schrieb Scott_Purcell@xxxxxxxx:
> Modinfo reports:
> 
> $ modinfo cifs
> filename:       /lib/modules/3.2.0-24-generic/kernel/fs/cifs/cifs.ko
> version:        1.76
> description:    VFS to access servers complying with the SNIA CIFS
> Specification e.g. Samba and Windows license:        GPL
> author:         Steve French <sfrench@xxxxxxxxxx>
> srcversion:     B869252FD0961045466332F
> depends:
> intree:         Y
> vermagic:       3.2.0-24-generic SMP mod_unload modversions
> parm:           CIFSMaxBufSize:Network buffer size (not including header).
> Default: 16384 Range: 8192 to 130048 (int) parm:          
> cifs_min_rcv:Network buffers in pool. Default: 4 Range: 1 to 64 (int)
> parm:           cifs_min_small:Small network buffers in pool. Default: 30
> Range: 2 to 256 (int) parm:           cifs_max_pending:Simultaneous
> requests to server. Default: 32767 Range: 2 to 32767. (int) parm:         
>  echo_retries:Number of echo attempts before giving up and reconnecting
> server. Default: 5. 0 means never reconnect. (ushort) parm:          
> enable_oplocks:Enable or disable oplocks (bool). Default:y/Y/1 (bool)
> 
> 
> 
> Scott Purcell
> Content Development: Linux, Virtualization, and Cloud Solutions
> Dell | GSD Learning & Development
> ________________________________________
> From: Shirish Pargaonkar [shirishpargaonkar@xxxxxxxxx]
> Sent: Thursday, May 17, 2012 12:15 PM
> To: Purcell, Scott
> Cc: samba@xxxxxxxxxxxxxxx
> Subject: Re:  Trouble with mount.cifs while smbclient works (Ubuntu
> 12.04)
> 
> On Thu, May 17, 2012 at 11:38 AM,  <Scott_Purcell@xxxxxxxx> wrote:
> > Passing "sec=ntlmssp" did not help.  Nor did moving the options prior to
> > the device and mount-point specifications.
> > 
> > I'm not comfortable sending a full tcpdump to the list whose membership I
> > do not know (but I can send it directly to formal members of the Samba
> > team -- I see Gunter's name on the website. Shirish, are you on the team
> > as well?) since it would reveal things about my network environment that
> > our data security folks would not want revealed.  But I have performed
> > such a capture -- are there specific things I should be looking for?
> 
> I think your session setup is failing.  Basically what does negotiate
> protocol response
> returns (capabilities etc.).
> Also, what is the version of cifs module? (modinfo cifs   command
> would tell that)
> 
> > --
Hi Scott,

just had a first look at your network trace:
 - negprot     ok
 - sess_setup  ok
 - treeconnect ok  (for shared tree and IPC$)

Then cifs is doing a QUERY_PATH_INFO (query file all info (263))
request on the shared tree (path = ""), which is failing with
STATUS_ACCESS_DENIED.

In a former post you used:

$ sudo smbclient  //pc************.com/D******NAS2 -A /etc/.smb_creds.txt 
Domain=[A*****S] OS=[EMC-SNAS:T5.6.50.205] Server=[NT1]
smb: \> ls training/
NT_STATUS_ACCESS_DENIED listing \training\
smb: \> cd training
smb: \training\> ls
  .                                  DA        0  Tue Jan 10 13:17:11 2012
  ..                                 DA        0  Thu Sep  1 11:54:48 2011
  Enterprise                         DA        0  Fri Oct 21 07:03:08 2011
  enterprise_services_offering       DA        0  Mon Jun 13 16:31:21 2011
  Flash_Beta                         DA        0  Wed Apr 14 13:46:40 2010
  Functions                          DA        0  Sat Feb 27 09:47:17 2010
  GCSS                               DA        0  Wed Apr 14 13:46:49 2010

After connect you do a "ls training/" and get access denied, but then you
cd into that subdir and "ls" is working.
Do you _always_ see this behavior?

When you use "ls" directly after connect, do you get some error?

Cheers, Günter
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