Baslinux mailing list

[baslinux AT lists.ibiblio.org]

On Tue, 3 Apr 2007 baslinux AT lists.ibiblio.org wrote:

> Regarding changes permissions on devices to let user use them.
> This should not be done.  You should run rxvt suid, and eznet suid, rather
> than changing ttyp0 and ttyS1 to executable or writeable by user.
>
> But ttyp0 and ttyS1 keep reverting to root-only usage after they are used
> and before boot completes.
>
> As shown by strace, eznet run suid root does not have permission to access
> /var/eznet/eznet.conf and other files there or in /etc/ppp (which should
> not be accessible to user because they contain password).  The only way I
> can dial as user is to keep resetting permissions on the modem device or
> reset permissions in an rc file at boot time.
>
> Karolis will try to figure this out in a qemu or loop BL3.
>
> Steven, do you dial as user in BL2?

You say you change permissions on ppp-on and ppp-off to the users group. 
In BL2 they are not even on the path for users (in /usr/sbin).  I 
symlinked to files of that name in /usr/bin.  I also do not use ppp-on on 
my computer because I have several entries in eznet.conf and I use eznet 
up 1 eznet up 2 etc, or a dialing script to call those.  I have tried 
giving users ownership of eznet and of the dialing script, with or without 
making them suid root.  I still do not have permission to access 
/dev/ttyS1 (which is apparently due to eznet not having permission to 
access eznet.conf even suid root).  My only solution is to keep changing 
file permissions on ttyS1.

I need more specific instructions, I think.
Maybe Karolis can figure out why eznet has no permission to access 
/var/eznet and other things suid root.

Sindi