feat(24.04): add dbus slices (#293)

---------

Co-authored-by: Rafid Bin Mostofa <[email protected]>
Co-authored-by: Cristovao Cordeiro <[email protected]>

slices/dbus-bin.yaml

@@ -0,0 +1,20 @@
+package: dbus-bin
+
+essential:
+  - dbus-bin_copyright
+
+slices:
+  bins:
+    essential:
+      - libc6_libs
+      - libdbus-1-3_libs
+    contents:
+      /usr/bin/dbus-cleanup-sockets:
+      /usr/bin/dbus-monitor:
+      /usr/bin/dbus-send:
+      /usr/bin/dbus-update-activation-environment:
+      /usr/bin/dbus-uuidgen:
+
+  copyright:
+    contents:
+      /usr/share/doc/dbus-bin/copyright:

slices/dbus-daemon.yaml

@@ -0,0 +1,31 @@
+package: dbus-daemon
+
+essential:
+  - dbus-daemon_copyright
+
+slices:
+  bins:
+    essential:
+      - dbus-bin_bins
+      - dbus-daemon_config
+      - dbus-session-bus-common_config
+      - libapparmor1_libs
+      - libaudit1_libs
+      - libc6_libs
+      - libcap-ng0_libs
+      - libdbus-1-3_libs
+      - libexpat1_libs
+      - libselinux1_libs
+      - libsystemd0_libs
+    contents:
+      /usr/bin/dbus-daemon:
+      /usr/bin/dbus-run-session:
+      /var/lib/dbus/: { make: true, mode: 0755 }
+
+  config:
+    contents:
+      /usr/lib/tmpfiles.d/dbus.conf:
+
+  copyright:
+    contents:
+      /usr/share/doc/dbus-daemon/copyright:

slices/dbus-session-bus-common.yaml

@@ -0,0 +1,14 @@
+package: dbus-session-bus-common
+
+essential:
+  - dbus-session-bus-common_copyright
+
+slices:
+  config:
+    contents:
+      /etc/dbus-1/session.d/:
+      /usr/share/dbus-1/session.conf:
+
+  copyright:
+    contents:
+      /usr/share/doc/dbus-session-bus-common/copyright:

slices/dbus-system-bus-common.yaml

@@ -0,0 +1,23 @@
+package: dbus-system-bus-common
+
+essential:
+  - dbus-system-bus-common_copyright
+
+slices:
+  # Depends on adduser, however it's used by the dbus postinst
+  # to create the following user:
+  # 'messagebus' without a home directory and disabled password
+  config:
+    contents:
+      /etc/dbus-1/system.d/:
+      /usr/lib/sysusers.d/dbus.conf:
+      /usr/share/dbus-1/system.conf:
+
+  services:
+    contents:
+      /usr/lib/systemd/system/dbus.socket:
+      /usr/lib/systemd/system/sockets.target.wants/dbus.socket:
+
+  copyright:
+    contents:
+      /usr/share/doc/dbus-system-bus-common/copyright:

slices/dbus.yaml

@@ -0,0 +1,35 @@
+package: dbus
+
+essential:
+  - dbus_copyright
+
+slices:
+  bins:
+    essential:
+      - dbus-bin_bins
+      - dbus-daemon_bins
+      - dbus-system-bus-common_config
+      - dbus_config
+      - libc6_libs
+      - libdbus-1-3_libs
+      - libexpat1_libs
+      - libsystemd0_libs
+    contents:
+      /etc/init.d/dbus:
+      /usr/lib/dbus-*/dbus-daemon-launch-helper:
+
+  config:
+    contents:
+      /etc/default/dbus:
+
+  services:
+    essential:
+      - dbus-system-bus-common_services
+      - dbus_bins
+    contents:
+      /usr/lib/systemd/system/dbus.service:
+      /usr/lib/systemd/system/multi-user.target.wants/dbus.service:
+
+  copyright:
+    contents:
+      /usr/share/doc/dbus/copyright:

slices/libdbus-1-3.yaml

@@ -0,0 +1,16 @@
+package: libdbus-1-3
+
+essential:
+  - libdbus-1-3_copyright
+
+slices:
+  libs:
+    essential:
+      - libc6_libs
+      - libsystemd0_libs
+    contents:
+      /usr/lib/*-linux-*/libdbus-1.so.3*:
+
+  copyright:
+    contents:
+      /usr/share/doc/libdbus-1-3/copyright:

tests/spread/integration/dbus/task.yaml

@@ -0,0 +1,20 @@
+summary: Integration tests for dbus
+
+execute: |
+  # Chisel a minimum number of slices to give us a runnable system that we can
+  # test in.
+  rootfs="$(install-slices base-files_base bash_bins coreutils_bins passwd_config dbus_bins)"
+  
+  # we need /dev/null for testing
+  mkdir "${rootfs}"/dev
+  mount --bind /dev "${rootfs}"/dev
+
+  # we also need a messagebus user
+  useradd -R "${rootfs}" -c "dbus messagebus test user" -u 1234 -g 1 -M messagebus
+  
+  cp test.sh "${rootfs}/"
+  chroot "${rootfs}/" /test.sh
+
+  # cleanup the daemon and mount
+  pkill -9 -f dbus-daemon
+  umount "${rootfs}"/dev

tests/spread/integration/dbus/test.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+# First thing is to create a system uuid
+mkdir -p /var/lib/dbus/
+dbus-uuidgen > /var/lib/dbus/machine-id
+
+# Start the daemon
+mkdir -p /run/dbus
+dbus-daemon --system
+
+# Test by sending, but allow a moment for the service to get up
+sleep 1
+dbus-send --system --print-reply --dest=org.freedesktop.DBus /org/freedesktop/DBus org.freedesktop.DBus.ListNames