On Jul 9, 11:10pm, yamt@mwd.biglobe.ne.jp (YAMAMOTO Takashi) wrote:
-- Subject: Re: lib/30664: realpath and magic symlinks

| > 2. Create sysctl to turn on/off readlink() return behavior. This sysctl
| >    "proc.pid.magiclinks" (or something) defaults to 0, and is inherited
| >    across fork and exec. If proc.pid.magiclinks==0, readlink returns the
| >    translated path; if ==1 then it returns the raw path.
| 
| who is expected to toggle this sysctl?
| users, or applications?

Users. The point is not to make the whole tinh visible to applications.

| > 3. In the long term, move the whole mess to namei(), deprecate magiclinks.
| >    and rename the magiclinks mount option magicnames.
| 
| i guess magicnames have its own weirdness...
| foreign filesystem/tarballs, remote files, etc.
| good luck. :-)

Why? The pathnames have @var's but they are otherwise valid.

christos