CIFS entensions for UNIX in smbfs

[John Newbigin]

I have come across a few issues with SMB_QUERY_FILE_UNIX_LINK and 
SMB_SET_FILE_UNIX_BASIC.

Firstly in SMB_SET_FILE_UNIX_BASIC, a SMB_SIZE_NO_CHANGE constant or 
flag would be good.  And perhaps a SMB_TIME_NO_CHANGE.

The second issue is to do with symlinks.  Firstly I think 
SMB_QUERY_FILE_UNIX_LINK fails because the sbuf already has the S_IFLNK 
flag removed.  This might be by design.  The semantics of symlinks get 
complex once the server starts modifying them but this might be a good 
thing.

In order to test the client code I just added another call to vfs_lstat 
before the S_ISLNK check.

The client also needs to know if it should follow symlinks locally or 
remotely.  I can think of cases where both could be usefull.  This is a 
client only issue but a flag on the server which means never return 
symlink info might also be useful.

Anyway, I have symlinks more or less working in smbfs.  Now on to 
SMB_SET_FILE_UNIX_LINK...


Jeremy Allison wrote:


> 
> Great news ! I'm already thinking about the UNIX ACL extensions and
> fcntl locking...

What is the advantage over fcntl locking over the existing SMBlockingX? 
  Or is this just the same but with a sane interface?

John.


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> Jeremy.
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