[Samba] symlinks loop detection in Samba?

[Giuseppe Lo Presti]

Hi all,

Following an old thread at [1] I wonder whether there's been any 
thought/plan to implement symbolic links loop detection in smbd.

This was seen on our setup with Samba 4.11.16, and for now we have 
deployed a workaround in our own filesystem implementation to stop the 
looping (by essentially hiding symlinks that point up the hierarchy, so 
Windows clients would not have a chance to loop on them). But I guess it 
would be nice if symlinks can be fully supported (i.e. keeping `follow 
symlinks = yes` whilst detecting loops), compensating the lack of 
support from Windows.

 From that thread it seems Jeremy had some ideas, not sure how this went 
and whether there's some option I've missed that would do the trick.

Thanks in advance for any thoughts and kind regards,
Giuseppe


[1] https://lists.samba.org/archive/samba/2017-September/211089.html