From: Eli Zaretskii <eliz@gnu.org>
To: Stefan Monnier <monnier@IRO.UMontreal.CA>
Cc: matthew@mattleach.net, emacs-devel@gnu.org
Subject: Re: [PATCH v3] Add systemd socket launching support
Date: Thu, 31 Mar 2016 22:34:14 +0300 [thread overview]
Message-ID: <83y48ytpah.fsf@gnu.org> (raw)
In-Reply-To: <jwv4mbmplq6.fsf-monnier+emacs@gnu.org> (message from Stefan Monnier on Thu, 31 Mar 2016 14:14:01 -0400)
> From: Stefan Monnier <monnier@IRO.UMontreal.CA>
> Cc: matthew@mattleach.net, emacs-devel@gnu.org
> Date: Thu, 31 Mar 2016 14:14:01 -0400
>
> In other similar functionality I've seen over the years, an alternative
> was to pass the fd as an additional argument on the command line, but in
> any case whether it's received from the environment or the command line,
> the file-descriptor to use will just be an integer, and it's already
> exposed to Lisp.
It's an attack vector expecting to happen, so we should try to avoid
that.
> So, AFAICT we just need 3 elements:
> - a function to get the FD number from systemd (which we could write in
> Elisp, but is much better implemented as a call to systemd's support
> library).
> - a way to create a process-object from an existing file-descriptor number.
> - changes in server.el to connect the previous 2 elements together.
>
> AFAICT, only the first part is systemd-specific, so I think it would
> make sense to try and avoid having systemd-specific details leak to the
> other parts.
I agree, and the last version of the patch already does that: it only
requires a boolean flag exposed to other APIs.
next prev parent reply other threads:[~2016-03-31 19:34 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-30 20:53 [PATCH v3] Add systemd socket launching support Matthew Leach
2016-03-31 12:55 ` Stefan Monnier
2016-03-31 13:31 ` Matthew Leach
2016-03-31 17:11 ` Stefan Monnier
2016-03-31 17:38 ` Matthew Leach
2016-03-31 17:41 ` Eli Zaretskii
2016-03-31 18:14 ` Stefan Monnier
2016-03-31 19:27 ` Matthew Leach
2016-03-31 19:32 ` Matthew Leach
2016-03-31 19:34 ` Eli Zaretskii [this message]
2016-03-31 21:22 ` Stefan Monnier
2016-04-01 7:10 ` Eli Zaretskii
2016-04-01 13:17 ` Stefan Monnier
2016-04-01 13:41 ` Eli Zaretskii
2016-04-01 18:43 ` Stefan Monnier
2016-04-01 19:47 ` Matthew Leach
2016-04-01 19:58 ` Eli Zaretskii
2016-04-03 0:53 ` Live System User
2016-03-31 16:32 ` Eli Zaretskii
2016-03-31 16:51 ` Matthew Leach
2016-03-31 16:56 ` Eli Zaretskii
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