systemd-udevd provides support for significantly more hardware than mdevd does. Therefore, switch to it. Signed-off-by: Demi Marie Obenour <demiobenour@gmail.com> --- Changes in v5: - Use -D_GNU_SOURCE in build system instead of #define _GNU_SOURCE 1 in C files. - Do not check for EAGAIN or EWOULDBLOCK after poll() has reported FD as ready. - Do not use MSG_NONBLOCK. - Use static variable for iovec. - Network hotplug script is safe to call more than once, so do not check for it having already been called. - Do not try to prevent /run/user from being created with wrong mode when it is known to already exist. - Fix copyright texts. - Link to v4: https://spectrum-os.org/lists/archives/spectrum-devel/20251003-udev-v4-0-7d7... Changes in v4: - Use 'udevadm trigger --action=add' at coldplug time. - Ensure that the wrapper does not exit after the first message. - Include the hardware database. - sd-notify-adapter should not exit if it receives a message without READY=1. - Link to v3: https://spectrum-os.org/lists/archives/spectrum-devel/20250928-udev-v3-0-bb0... Changes in v3: - Try to avoid net-add running twice. - Use full systemd instead of systemdMinimal, as something else already pulls it into the image. - Hopefully fix integration tests. - Link to v2: https://spectrum-os.org/lists/archives/spectrum-devel/20250924-udev-v2-2-608... Changes in v2: - Use more optional arguments instead of positional parameters in sd-notify-wrapper. - Explain why explicit modprobe is needed. - Link to v1: https://spectrum-os.org/lists/archives/spectrum-devel/20250913-udev-v1-0-ead... --- Demi Marie Obenour (2): tools: Add adapter tool for services using sd_notify host/rootfs: Switch to systemd-udevd host/rootfs/Makefile | 2 +- host/rootfs/default.nix | 118 ++++++++------------- host/rootfs/file-list.mk | 33 +++--- host/rootfs/image/etc/mdev.conf | 7 -- host/rootfs/image/etc/mdev/listen | 11 -- host/rootfs/image/etc/mdev/wait | 14 --- host/rootfs/image/etc/s6-rc/card0/type.license | 2 - host/rootfs/image/etc/s6-rc/card0/up | 4 - host/rootfs/image/etc/s6-rc/kvm/timeout-up | 1 - host/rootfs/image/etc/s6-rc/kvm/timeout-up.license | 2 - host/rootfs/image/etc/s6-rc/kvm/type | 1 - host/rootfs/image/etc/s6-rc/kvm/type.license | 2 - host/rootfs/image/etc/s6-rc/kvm/up | 4 - host/rootfs/image/etc/s6-rc/mdevd-coldplug/type | 1 - host/rootfs/image/etc/s6-rc/mdevd-coldplug/up | 4 - .../image/etc/s6-rc/mdevd/notification-fd.license | 2 - host/rootfs/image/etc/s6-rc/mdevd/run | 5 - .../contents.d/systemd-udevd-coldplug} | 0 .../dependencies.d/systemd-udevd} | 0 .../s6-rc/{card0 => systemd-udevd-coldplug}/type | 0 .../type.license | 0 .../image/etc/s6-rc/systemd-udevd-coldplug/up | 3 + .../s6-rc/{mdevd => systemd-udevd}/notification-fd | 0 .../s6-rc/systemd-udevd/notification-fd.license | 2 + host/rootfs/image/etc/s6-rc/systemd-udevd/run | 14 +++ .../image/etc/s6-rc/{mdevd => systemd-udevd}/type | 0 .../s6-rc/{mdevd => systemd-udevd}/type.license | 0 .../contents.d/systemd-udevd-coldplug} | 0 .../contents.d/systemd-udevd-coldplug} | 0 .../weston/dependencies.d/systemd-udevd-coldplug | 0 host/rootfs/image/etc/s6-rc/weston/run | 6 +- .../image/etc/udev/rules.d/99-spectrum.rules | 9 ++ host/rootfs/image/usr/bin/run-vmm | 1 + host/rootfs/image/usr/bin/systemd-udevd | 1 + .../{etc/mdev/net/add => usr/libexec/net-add} | 0 tools/default.nix | 1 + tools/meson.build | 1 + tools/sd-notify-adapter/meson.build | 4 + tools/sd-notify-adapter/sd-notify-adapter.c | 107 +++++++++++++++++++ 39 files changed, 203 insertions(+), 159 deletions(-) --- base-commit: 1d666582892fbdf812662b4490caf7821078eaf9 change-id: 20250911-udev-24cf4bf68fbe -- Sincerely, Demi Marie Obenour (she/her/hers)