[openbeos] Re: BFS status update
- From: François Revol <revol@xxxxxxx>
- To: openbeos@xxxxxxxxxxxxx
- Date: Wed, 24 Apr 2002 00:32:42 +0200 (MEST)
It doesn't support perms according to UNIX
(you must have write permission in a folder to delete a file inside it)
(in the geekgadgets port of emacs, there is a wrapper for file ops that
stat() the file before saving it, to check it can do it)
[revol@patrick /boot/home]$ mkdir foobar
[revol@patrick /boot/home]$ touch foobar/lol
[revol@patrick /boot/home]$ chown 2:3 foobar
[revol@patrick /boot/home]$ chmod 700 foobar/
[revol@patrick /boot/home]$ ls -la foobar/
total 12
drwx------ 1 2 3 2048 Apr 24 00:30 .
drwxr-xr-x 1 revol users 10240 Apr 24 00:30 ..
-rw-r--r-- 1 revol users 0 Apr 24 00:30 lol
[revol@patrick /boot/home]$ rm foobar/lol
[revol@patrick /boot/home]$ ls -la foobar/
total 12
drwx------ 1 2 3 2048 Apr 24 00:31 .
drwxr-xr-x 1 revol users 10240 Apr 24 00:30 ..
[revol@patrick /boot/home]$
En réponse à Axel Dörfler <axeld@xxxxxxxxxxxxxxxx>:
> > Axel wrote:
> > > I am sure there are many small issues like a not updated last
> > > modified time, not respected permissions, etc. - these don't harm
> > > your data, but may be big security holes, or could produce
> problems
> > > of all kind.
> > That's kind of interesting. First off, I think the "real" BFS only
> > supports
> > creation time and doesn't update modification time, isn't that
> right?
>
> No, it maintains creation time and last modification time - it does not
>
> support the last access time, though. And only the last modified time
> is indexed.
>
> > Secondly, I *know* it doesn't respect user permissions, since BeOS
> > doesn't
> > support users at all. How are you guys supporting this?
>
> BFS respects user permissions, not only according to Dominic's book,
> but also with real world tests - there is a "multiuser" application
> available with which you can execute commands with another user ID; you
>
> will see that you can't change or delete or even read files according
> to the permissions.
> It's only that you're probably always the root user in BeOS which lets
>
> you think it wouldn't support this stuff.
>
> Adios...
> Axel.
>
>
>
>
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