Re: [Re: [gentoo-dev] Permissions to dial out ?]

Re: [Re: [gentoo-dev] Permissions to dial out ?]

[Viktor Lakics]

Thanks Jerry,

I will look into it (the suid issue) tonight when I get home.

BTW I use wvdial and kppp, both has this issue.

Viktor



Jerry A! <jerry@thehutt.org> wrote:
> On Wed, Jul 11, 2001 at 09:04:07AM +0100, Viktor Lakics wrote:
> : Hi All,
> : 
> : How can I give access to normal users to use serial ports? (I want to use
a
> : modem on one of the serial ports and a palm cradle on the other)
> : 
> : I added  the user to the dialout group - no success to use the modem.
> 
> That's the correct solution.
> 
> : It says : ttyS0: Device or resource is busy (root can use the device
without
> : problems)
> 
> Make sure that they're using /dev/ttyS0 (/dev/cua0 is owned by root).
> It sounds as though another program still has that device open.  As a
> matter of debugging, you may want to try making the dialing program suid
> root and see if it works then.
> 
> BTW, what program are you using?
> 
>         --Jerry
> 
> name:  Jerry Alexandratos         ||  Open-Source software isn't a
> phone: 703.599.6023               ||  matter of life or death...
> email: jerry@thehutt.org          ||  ...It's much more important
>                                   ||  than that!
> 
> _______________________________________________
> gentoo-dev mailing list
> gentoo-dev@cvs.gentoo.org
> http://cvs.gentoo.org/mailman/listinfo/gentoo-dev


----Viktor Lakics----

Through the Internet:

  lakicsv@usa.net


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Re: [Re: [gentoo-dev] Permissions to dial out ?]

[Jerry A!]

On Wed, Jul 11, 2001 at 09:41:21AM +0100, Viktor Lakics wrote:
: Thanks Jerry,
: 
: I will look into it (the suid issue) tonight when I get home.
: 
: BTW I use wvdial and kppp, both has this issue.

Aren't those both frontends to pppd?  What happens when you try to
fire-up pppd as a user and not as root?  Also, do you have pppd
listening for incoming connections at the same time that you're trying
to dial out?

Just some more stuff to try out.

        --Jerry

name:  Jerry Alexandratos         ||  Open-Source software isn't a
phone: 703.599.6023               ||  matter of life or death...
email: jerry@thehutt.org          ||  ...It's much more important
                                  ||  than that!

[gentoo-dev] Devfs permissions ?! [was:Permissions to dial out ?]

[Viktor Lakics]

Jerry,

I tried chmod 666 /dev/ttyS0, and suddenly everything worked. I was
able to dial out as a normal user. I was happy. Then I rebooted and
the problem came back. The permissions changed back to what it was.
It seems to be that they are automatically generated at boot time.

Now what?

I know nothing about devfs, but I now that I have this thing mounted
automatically (I guess is built in the kernel - I do nor have to
pass anything to grub). Is it possible that I have to set the
permissions somehow through this devfs?!

If yes, how? What is the utility to do that?

Viktor




On Wed, Jul 11, 2001 at 04:54:45AM -0400, Jerry A! wrote:
> On Wed, Jul 11, 2001 at 09:41:21AM +0100, Viktor Lakics wrote:
> : Thanks Jerry,
> : 
> : I will look into it (the suid issue) tonight when I get home.
> : 
> : BTW I use wvdial and kppp, both has this issue.
> 
> Aren't those both frontends to pppd?  What happens when you try to
> fire-up pppd as a user and not as root?  Also, do you have pppd
> listening for incoming connections at the same time that you're trying
> to dial out?
> 
> Just some more stuff to try out.
> 
>         --Jerry
> 
> name:  Jerry Alexandratos         ||  Open-Source software isn't a
> phone: 703.599.6023               ||  matter of life or death...
> email: jerry@thehutt.org          ||  ...It's much more important
>                                   ||  than that!
> 
> _______________________________________________
> gentoo-dev mailing list
> gentoo-dev@cvs.gentoo.org
> http://cvs.gentoo.org/mailman/listinfo/gentoo-dev
> 

Re: [gentoo-dev] Devfs permissions ?! [was:Permissions to dial out ?]

[Terje Kvernes]

Viktor Lakics <lakicsv@usa.net> writes:

> I tried chmod 666 /dev/ttyS0, and suddenly everything worked. I was
> able to dial out as a normal user. I was happy. Then I rebooted and
> the problem came back. The permissions changed back to what it was.
> It seems to be that they are automatically generated at boot time.

  ah. hm. right. I sort of smell devfs here. getting devfs to store
  permissions between boots isn't trivial.
 
> Now what?

  you might want to fiddle with pam for stuff like this. or manually
  make a small hack for it.
 
> I know nothing about devfs, but I now that I have this thing mounted
> automatically (I guess is built in the kernel - I do nor have to
> pass anything to grub). Is it possible that I have to set the
> permissions somehow through this devfs?!

  sort of, yes.

> If yes, how? What is the utility to do that?

  <url: http://www.atnf.csiro.au/~rgooch/linux/docs/devfs.html#persistence >

-- 
Terje

Re: [gentoo-dev] Devfs permissions ?! [was:Permissions to dial out ?]

[Daniel Robbins]

On Wed, Jul 11, 2001 at 09:24:42PM +0100, Viktor Lakics wrote:
> Jerry,
> 
> I tried chmod 666 /dev/ttyS0, and suddenly everything worked. I was
> able to dial out as a normal user. I was happy. Then I rebooted and
> the problem came back. The permissions changed back to what it was.
> It seems to be that they are automatically generated at boot time.
> 
> Now what?
> 
> I know nothing about devfs, but I now that I have this thing mounted
> automatically (I guess is built in the kernel - I do nor have to
> pass anything to grub). Is it possible that I have to set the
> permissions somehow through this devfs?!

Gentoo Linux 1.0_rc5 contains a system to store permissions, but in
order for it to work, you must *not* enable the "Automatically mount
devfs at kernel boot" option.  If you fix your kernel so that this
option is disabled, then your perms should get stored.  This bug will
be fixed in 1.0_rc6.

Best Regards,

-- 
Daniel Robbins					<drobbins@gentoo.org>
President/CEO					http://www.gentoo.org 
Gentoo Technologies, Inc.