[systemd-devel] Does systemd-stdio-bridge handle dbus UNIX_FD passing somehow?

Mantas Mikulėnas grawity at gmail.com
Tue Jun 27 08:51:37 UTC 2017

Afaik, the stdio bridge only supports a single dbus protocol stream and
nothing else.

Trying to pass file descriptors over the network might need magic in the
literal sense – just imagine emulating all the ioctls, socket operations,
etc. that a program may want to perform.

(I seem to remember a similar thread very recently on the dbus mailing

On Tue, Jun 27, 2017, 11:26 Umut Tezduyar Lindskog <umut at tezduyar.com>

> Hello,
> I would like to make a method call on a remote machine with busctl
> where the method returns UNIX_FD (h), type unix domain socket.
> I am guessing the FD stops on stdio-bridge without any other magic
> bridging the UDS to an another socket on the host. Is that the case?
> Can there be any magic to accomplish this?
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Mantas Mikulėnas <grawity at gmail.com>
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