Re: Max number of symlinks

[Vlad Harchev <hvv@hippo.ru>]

On Thu, 19 Jul 2001 igor@lid9c1.engr.ccny.cuny.edu wrote:

 Hi, 

> 
> Ogromnoye spasibo.
> Posle Vashey podskazki ya nashel analogichniy kusok v 2.2.17:
> fs/namei.c:
>   if (current->link_count < 5)
> 
> Vy navernoye ssylalis` na kernel 2.4.x?

 Да, код из 2.4.2.

> Vidimo, tam narodu dali symlink'ov pobolshe.
> Nu i otlichno.

 Хотя IMO лучше бы было  поднять лимит до 50.

> Igor.
> 
> 
> On Thu, 19 Jul 2001, Vlad Harchev wrote:
> 
> > On Wed, 18 Jul 2001 igor@lid9c1.engr.ccny.cuny.edu wrote:
> >  Hi,
> > 
> >  It's hardcoded in the kernel here:
> > 
> > static inline int do_follow_link(struct dentry *dentry, struct nameidata *nd)
> > {
> >         int err;
> >         if (current->link_count >= 8)
> >                 goto loop;
> >         current->link_count++;
> >         UPDATE_ATIME(dentry->d_inode);
> >         err = dentry->d_inode->i_op->follow_link(dentry, nd);
> >         current->link_count--;
> >         return err;
> > loop:
> >         path_release(nd);
> >         return -ELOOP;
> > }
> > 
> >  Dunno why that particular limit was chosen..
> > 
> >  Best regards,
> >   -Vlad
> >  
> > > Dobrogo ...
> > > Obnaruzhil, chto u menya v potato
> > > (kernel 2.2.17 ili 2.2.15) glubina
> > > vlozhennosti symlink'ov =7.
> > > To est:
> > > org <-1 <-2 <-3 <-4 <-5 <-6
> > > i nomer 6 uzhe ne otkryt`: Oshibka:
> > >   Too many levels of symbolic links
> > > 
> > > Pokopalsya v ishodnikah kernela - nashel tolko
> > > pro zhestkiye link'i.
> > > Mozhet i ne kernel eto delaet, a libc?
> > > 
> > > Kak by uvelichit` glubinu vlozhennosti?
> > > Ili est` kakaya-to vselenskya mudrost`
> > > za vyborom chisla 7?
> > > 
> > > Spasibo.
> > > Igor.
> > 
> > 

 Best regards,
  -Vlad