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