From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: Frederik Bayart <frederik.bayart@domain.hid>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai-help] Xenomai: binding failed: Operation not permitted.
Date: Fri, 11 May 2012 17:21:19 +0200 [thread overview]
Message-ID: <4FAD2E6F.1070501@domain.hid> (raw)
In-Reply-To: <CALH4WdatY-9r65xU600yf4v0J3cbYqtCeZnP7jvvG0fKvrweYw@domain.hid>
On 05/11/2012 05:02 PM, Frederik Bayart wrote:
> now with mailing list in cc
>
> Hallo Gilles,
>
> by adding my user to group xenomai and configuring the
> xeno_nucleus.xenomai_gid parameter on the command line, I was able to
> run my binary as non-root, so my problem is solved.
>
> However, I noticed that if I start my binary as root, and using
> seteuid and setegid to non-root as in de example still fails. I don't
> know whether this is normal or a bug.
It is normal. For your case to run, the fork itself must be run a root.
So, you should call again seteuid/setegid before vfork, then drop again
the rights before exec (if you do not want the exec to be run as root).
--
Gilles.
next prev parent reply other threads:[~2012-05-11 15:21 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-25 10:28 [Xenomai-help] Xenomai: binding failed: Operation not permitted Frederik Bayart
2012-04-25 10:43 ` Gilles Chanteperdrix
[not found] ` <4F97E4AA.8090502@domain.hid>
[not found] ` <CALH4WdbEZL9f=ikyEezZwUwpgKaFPaf=YqbCXzNe97dt0J643w@domain.hid>
2012-04-29 15:56 ` Gilles Chanteperdrix
2012-04-29 15:56 ` Gilles Chanteperdrix
[not found] ` <CALH4WdaTXPmzXnUHiU1jfhKUCiBhyG+X1oA6XSK5fHXds_gLTA@mail.gmail.com>
2012-05-11 15:02 ` Frederik Bayart
2012-05-11 15:21 ` Gilles Chanteperdrix [this message]
[not found] <200605181426.8240@domain.hid>
[not found] ` <446C6C1C.2010902@domain.hid>
2006-05-19 7:43 ` Petr Cervenka
2006-05-19 8:12 ` Jan Kiszka
2006-06-06 15:20 ` s.a.
2006-06-06 13:24 ` Jan Kiszka
2006-06-07 9:05 ` s.a.
2006-06-07 9:42 ` Jan Kiszka
2006-06-09 13:28 ` Jan Kiszka
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