1 files changed, 96 insertions, 0 deletions
diff --git a/modules.d/06dbus-daemon/module-setup.sh b/modules.d/06dbus-daemon/module-setup.sh
new file mode 100755
index 0000000..8345585
--- /dev/null
+++ b/modules.d/06dbus-daemon/module-setup.sh
@@ -0,0 +1,96 @@
+#!/bin/bash
+# This file is part of dracut.
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+# Prerequisite check(s) for module.
+check() {
+
+    # If the binary(s) requirements are not fulfilled the module can't be installed
+    require_binaries busctl || return 1
+    require_binaries dbus-daemon || return 1
+    require_binaries dbus-send || return 1
+
+    # Return 255 to only include the module, if another module requires it.
+    return 255
+}
+
+# Module dependency requirements.
+depends() {
+
+    # This module has external dependency on the systemd module.
+    echo systemd
+    # Return 0 to include the dependent systemd module in the initramfs.
+    return 0
+}
+
+# Install the required file(s) and directories for the module in the initramfs.
+install() {
+    # dbus conflicts with dbus-broker.
+    if dracut_module_included "dbus-broker"; then
+        derror "dbus conflicts with dbus-broker in the initramfs."
+        return 1
+    fi
+
+    # Create dbus related directories.
+    inst_dir "$dbus"
+    inst_dir "$dbusinterfaces"
+    inst_dir "$dbusservices"
+    inst_dir "$dbussession"
+    inst_dir "$dbussystem"
+    inst_dir "$dbussystemservices"
+    inst_dir "$dbusconfdir"
+    inst_dir "$dbusinterfacesconfdir"
+    inst_dir "$dbusservicesconfdir"
+    inst_dir "$dbussessionconfdir"
+    inst_dir "$dbussystemconfdir"
+    inst_dir "$dbussystemservicesconfdir"
+
+    inst_multiple -o \
+        "$dbus"/system.conf \
+        "$dbussystem"/org.freedesktop.systemd1.conf \
+        "$dbusservicesconfdir"/org.freedesktop.systemd1.service \
+        "$dbussystemservices"/org.freedesktop.systemd1.service \
+        "$systemdsystemunitdir"/dbus.service \
+        "$systemdsystemunitdir"/dbus.socket \
+        "$systemdsystemunitdir"/dbus.target.wants \
+        busctl dbus-send dbus-daemon
+
+    # Adjusting dependencies for initramfs in the dbus service unit.
+    # shellcheck disable=SC1004
+    sed -i -e \
+        '/^\[Unit\]/aDefaultDependencies=no\
+        Conflicts=shutdown.target\
+        Before=shutdown.target' \
+        "$initdir$systemdsystemunitdir/dbus.service"
+
+    # Adjusting dependencies for initramfs in the dbus socket unit.
+    # shellcheck disable=SC1004
+    sed -i -e \
+        '/^\[Unit\]/aDefaultDependencies=no\
+        Conflicts=shutdown.target\
+        Before=shutdown.target
+        /^\[Socket\]/aRemoveOnStop=yes' \
+        "$initdir$systemdsystemunitdir/dbus.socket"
+
+    # Adding the user and group for dbus
+    grep '^\(d\|message\)bus:' "$dracutsysrootdir"/etc/passwd >> "$initdir/etc/passwd"
+    grep '^\(d\|message\)bus:' "$dracutsysrootdir"/etc/group >> "$initdir/etc/group"
+
+    # Install the hosts local user configurations if enabled.
+    if [[ $hostonly ]]; then
+        inst_multiple -H -o \
+            "$dbusconfdir"/system.conf \
+            "$systemdsystemconfdir"/dbus.socket \
+            "$systemdsystemconfdir"/dbus.socket.d/*.conf \
+            "$systemdsystemconfdir"/dbus.service \
+            "$systemdsystemconfdir"/dbus.service.d/*.conf
+    fi
+
+    # We need to make sure that systemd-tmpfiles-setup.service->dbus.socket
+    # will not wait for local-fs.target to start if swap is encrypted,
+    # this would make dbus wait the timeout for the swap before loading.
+    # This could delay sysinit services that are dependent on dbus.service.
+    sed -i -Ee \
+        '/^After/s/(After[[:space:]]*=.*)(local-fs.target[[:space:]]*)(.*)/\1-\.mount \3/' \
+        "$initdir$systemdsystemunitdir/systemd-tmpfiles-setup.service"
+}