On Mo, 2026-07-13 at 14:30 -0600, Joshua Watt wrote:
> On Thu, Jul 9, 2026 at 2:45 AM Philipp Zabel via lists.openembedded.org
> <[email protected]> wrote:
>
> > On Mi, 2026-07-08 at 17:37 +0300, Leon Anavi wrote:
> > > Add pam to DISTRO_FEATURES_DEFAULTS in init-manager-systemd.inc.
> > > This way pam will available if variable VIRTUAL-RUNTIME_init_manager
> > > has been set to systemd. Otherwise having systemd in conjunction
> > > with wayland but without pam leads to a conflict with the
> > > REQUIRED_DISTRO_FEATURES for weston related recipes.
> >
> > I think these requirements are partially incorrect, btw.
> >
> > Weston itself only requires PAM for the VNC password, so if
> > PACKAGECONFIG[vnc] is disabled, there is no PAM dependency from
> > weston_15.0.1.bb at all, and if vnc is enabled, the PAM dependency has
> > nothing to do with systemd being enabled or used as init system.
> >
> > The PAM dependency in weston-init.bb comes from the PAMName=weston-
> > autologin option in weston.service and the corresponding weston-
> > autologin PAM configuration. Those files are always installed if
> > DISTRO_FEATURES has systemd, even if VIRTUAL-RUNTIME_init_manager is
> > set to something else.
> > Shouldn't either the pam distro feature depend on the systemd distro
> > feature, or should the weston.service/weston-autologin files be
> > installed at all if the systemd distro feature is enabled but
> > init_manager is set to something else?
> > I think it wouldn't be even better to remove the PAM requirement from
> > weston-init if VNC is disabled, as Weston doesn't need the PAM login in
> > that case.
> >
>
> I believe weston-init needs PAM regardless of VNC being enabled.
Yes. I failed to realize weston-init relies on pam_systemd.so to set
XDG_RUNTIME_DIR (which weston needs to create the wayland socket) in
its current state. The weston.service could just as well pass it via
the environment, though, for example:
RuntimeDirectory=weston
Environment=XDG_RUNTIME_DIR=/run/weston
We've used this with an explicit socket path and WAYLAND_DISPLAY
exported via the systemd environment:
ExecStart=/usr/bin/weston --socket=${RUNTIME_DIRECTORY}/wayland-1 ...
ExecStartPost=+/usr/bin/systemctl set-environment
WAYLAND_DISPLAY=${RUNTIME_DIRECTORY}/wayland-1
regards
Philipp
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