[Pkg-utopia-maintainers] Bug#923387: Bug#923387: udisks2: Please support new logind virtual packages

[Michael Biebl]

Am 31.01.20 um 05:40 schrieb Benda Xu:
> Hi Michael,
> 
> What is the status of this bug?
> 
> 
> elogin now provides sd_uid_is_on_seat:
> 
> $ nm -D /lib/elogind/libelogind-shared-241.3.so | grep sd_uid_is_on_seat                      
> 00000000000b5b90 T sd_uid_is_on_seat
> 
> 
> Please express your concern.

The libpam-systemd dependency was added in 2.1.3-2. Here's the relevant
changelog entry

> udisks2 (2.1.3-2) unstable; urgency=medium

...

>   * debian/control: Add dependecy against libpam-systemd, we need to be sure a
>     logind session is registered for seat detection and system inhibitors
> 
>  -- Laurent Bigonville <bigon at debian.org>  Sat, 31 May 2014 22:40:10 +0200

The seat detection is acquired via libsystemd, not the D-Bus interface
afaics. The virtual package logind only provides guarantees regarding
the D-Bus interface. From
/usr/share/doc/debian-policy/virtual-package-names-list.yaml.gz

 - name: logind
   description: an org.freedesktop.login1 D-Bus API implementation
(versioned)

Can you provide more information if the C-API of logind is fully
implemented in elogind? Should debian-policy be updated then?

That is my concern number one.

Second, I don't think the logind virtual package gives any guarantees
regarding the systemd inhibit API.

How does elogind enforce an inhibition lock? Say udisks currently
executed a destructive operation operation. How does it prevent
(accidental) shutdowns in this case, which would render your system broken?

Regards,
Michael

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