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#!/usr/bin/env bash
# -*- coding: utf-8 -*-
# region imports
source "$(dirname "${BASH_SOURCE[0]}")/scripts/rebash/core.sh"
core.import exceptions
core.import logging
core.import utils
core.import "$(core_abs_path "$(dirname "${BASH_SOURCE[0]}")/helper/build.inc")"
# endregion
# region forward "build-initrfams.sh" logging configuration if present.
_parse_dracut_args() {
local __doc__='
Set log level via dracut logging options and returns current debug state.
>>> echo "$_debug"
1
>>> _parse_dracut_args; echo $?
1
>>> _parse_dracut_args --stdlog 3; echo $?
>>> _parse_dracut_args --stdlog 4; echo $?
>>> logging.get_commands_level
>>> logging.get_level
0
debug
debug
>>> logging.get_level
critical
>>> _parse_dracut_args --stdlog 4 --verbose
>>> logging.get_level
debug
>>> _parse_dracut_args --stdlog 4 --unknown-dracut-option; echo $?
0
'
local verbose=false
local debug=false
while true; do
case "$1" in
--stdlog)
shift
local level="$1"
shift
[[ "$level" -ge 4 ]] && debug=true
;;
--verbose)
shift
verbose=true
;;
'')
break
;;
*)
shift
;;
esac
local level
$verbose && level=info
$debug && level=debug
logging.set_level "$level"
logging.set_commands_level debug
done
$debug
return $?
}
_debug=0
_parse_dracut_args ${dracut_args[*]} || _debug=$?
# endregion
# region initialize function to build required components
clean() {
local __doc__='
Removes all compiled kernel specific files.
NOTE: This method is triggered manually and not supported by dracut itself.
Example:
`clean`
'
. "${moddir}/helper/build.inc"
clean_components
return 0
}
# endregion
# region dracut plugin api
check() {
local __doc__='
Checks wether all template system assumptions are satisfied.
Example:
`check`
'
exceptions.activate
if ! build_initialize_components; then
logging.error "Failed to initialize components."
return 1
fi
# NOTE: xmount must be compiled before qemu_xmount
local xmount_is_built=true
if [[ ! -f "$moddir/binaries/xmount/trunk/build/src/xmount" ]] ||
[[ ! -f "$moddir/binaries/qemu-xmount/libxmount_input_qemu.so" ]]; then
xmount_is_built=false
fi
$xmount_is_built || logging.warn \
"Compiling \"xmount\" failed."
if [[ ! -f "$moddir/binaries/dnbd3/build/dnbd3.ko" ]] || \
[[ ! -f "$moddir/binaries/dnbd3/build/dnbd3-client" ]]
then
CMAKE_FLAGS="-DKERNEL_VERSION=${kernel}" \
build_compile_dnbd3 "$moddir/binaries/dnbd3/"
[[ $? != 0 ]] && return 1
fi
if [[ ! -f "$moddir/binaries/systemd-preserve-process-marker/systemd-preserve-process-marker" ]]; then
build_compile_systemd_preserve_process_marker \
"$moddir/binaries/systemd-preserve-process-marker/"
[[ $? != 0 ]] && return 1
fi
# NOTE: This are workarounds for:
# - distributions where "systemd-udevd" doesn't lives in "/usr/lib" but in
# "/lib".
local alternate_systemd_udevd_location='/lib/systemd/systemd-udevd'
if [[ ! -f "${systemdutildir}/systemd-udevd" ]] && \
[[ -f "$alternate_systemd_udevd_location" ]]; then
mkdir --parents "${initdir}${systemdutildir}"
ln --symbolic --force "$alternate_systemd_udevd_location" \
"${initdir}${systemdutildir}/systemd-udevd"
#cp "$alternate_systemd_udevd_location" \
# "${initdir}${systemdutildir}/systemd-udevd" 1>&2
fi
# - "/usr/bin/sh" isn't available but "/bin/sh".
if [[ ! -f /usr/bin/sh ]] && [[ -f /bin/sh ]]; then
ln --symbolic --force /bin/sh /usr/bin/sh
fi
exceptions.deactivate
# Tell dracut that this module should only be included if it is required
# explicitly.
return 255
}
depends() {
local __doc__='
Outputs all dependent dracut modules to make this module work.
>>> depends
+doc_test_contains
base
'
#local network_module="network"
#dracut_module_included "systemd-initrd" && network_module="systemd-networkd-ext"
echo base bash kernel-modules shutdown slx-dmsetup slx-network # "$network_module"
}
installkernel() {
local __doc__='
Copies all needed kernel modules into initramfs file needed work at
runtime.
Example:
`installkernel`
'
local block_kmod_dir="/lib/modules/${kernel}/kernel/drivers/block"
# dnbd3
mkdir -p "${initdir}/${block_kmod_dir}"
inst "${moddir}/binaries/dnbd3/build/dnbd3.ko" "${block_kmod_dir}/dnbd3.ko"
# kqcow2 kernel
mkdir -p "${initdir}/${block_kmod_dir}/loop"
for kmod in "${moddir}/binaries/kernel-qcow2-linux/drivers/block/loop/"*.ko ; do
inst "$kmod" "${block_kmod_dir}/loop/$(basename $kmod)"
done
}
install() {
local __doc__='
Copies all needed files into the initramfs image and registers all needed
dracut hooks.
Example:
`install`
'
# region binaries
inst "$moddir/binaries/dnbd3/build/dnbd3-client" /usr/local/bin/dnbd3-client
inst "$moddir/binaries/systemd-preserve-process-marker/systemd-preserve-process-marker" \
/usr/local/bin/systemd-preserve-process-marker
# xmount
local \
xmount_installation="$moddir/binaries/xmount/trunk/build/release_build"
if [[ -f "${xmount_installation}/usr/bin/xmount" ]]; then
inst "${xmount_installation}/usr/bin/xmount" /usr/bin/xmount
for file in ${xmount_installation}/usr/lib/xmount/*; do
inst "$file" /usr/lib/xmount/"$(basename "$file")"
done
inst "$moddir/binaries/qemu-xmount/libxmount_input_qemu.so" \
/usr/lib/xmount/libxmount_input_qemu.so
# HACK fix missing libraries for some xmount input libs
# TODO copy the dependencies using dracut functions...
inst_libdir_file 'libafflib.so*'
inst_libdir_file 'libewf.so*'
fi
# kqcow2 losetup
local losetup_qcow2_dir="$moddir/binaries/kernel-qcow2-util-linux"
if [[ -f "${losetup_qcow2_dir}/.libs/losetup" ]]; then
inst "${losetup_qcow2_dir}/.libs/losetup" /usr/local/bin/losetup
mkdir -p "${initdir}/usr/local/lib"
cp -a "${losetup_qcow2_dir}/.libs/"*.so* "${initdir}/usr/local/lib"
fi
# endregion
# region hooks
inst_hook cmdline 00 "$moddir/hooks/enable-sysrq.sh"
# NOTE: Can be used to support old style ip append syntax and have an
# exclusive interface name - required when using dracut's regular
# 'network' module
dracut_module_included "network" && inst_hook cmdline 10 \
"$moddir/hooks/prepare-kernel-command-line-parameter.sh"
inst_hook cmdline 90 "$moddir/hooks/set-dracut-environment-variables.sh"
inst_hook pre-udev 00 "$moddir/hooks/load-custom-kernel-modules.sh"
# Get the openslx config from the servers configured in the kernel command
# line (${SLX_SERVER}/${SLX_SERVER_BASE}/config).
inst_hook pre-mount 10 "$moddir/hooks/fetch-config.sh"
# make the final blockdevice for the root system (dnbd3 -> xmount ->
# device-mapper)
if dracut_module_included "systemd-initrd"; then
inst "$moddir/hooks/prepare-root-partition.sh" \
/usr/local/bin/dnbd3root
inst_simple "${moddir}/services/dnbd3root.service" \
"${systemdsystemunitdir}/dnbd3root.service"
mkdir --parents \
"${initdir}/${systemdsystemunitdir}/dracut-mount.service.requires"
ln_r "${systemdsystemunitdir}/dnbd3root.service" \
"${systemdsystemunitdir}/dracut-mount.service.requires/dnbd3root.service"
mkdir --parents \
"${initdir}/${systemdsystemunitdir}/initrd.target.requires"
ln_r "${systemdsystemunitdir}/dnbd3root.service" \
"${systemdsystemunitdir}/initrd.target.requires/dnbd3root.service"
# Copy systemd services to new root (so they don't get killed after
# switch_root)
inst_hook pre-pivot 00 \
"$moddir/hooks/copy-dnbd3-service-into-newroot.sh"
inst_hook pre-pivot 00 \
"$moddir/hooks/copy-dracut-systemd-files-into-newroot.sh"
inst_hook pre-shutdown 00 "$moddir/hooks/shutdown-umount.sh"
else
inst_hook pre-mount 10 "$moddir/hooks/prepare-root-partition.sh"
fi
inst_hook mount 10 "$moddir/hooks/mount-root-device.sh"
inst_hook pre-pivot 00 \
"$moddir/hooks/copy-openslx-configuration-into-newroot.sh"
# endregion
# region scripts
local file_path
for file_path in "$moddir/scripts/rebash/"*; do
inst "$file_path" "/usr/lib/rebash/$(basename "$file_path")"
done
#inst "$moddir/scripts/tools.sh" "/usr/lib/openslx/tools.sh"
# endregion
# region configuration files
# Use terminal readline settings from the template system.
inst /etc/inputrc /etc/inputrc
# Set some aliases for the initramfs context.
if [[ "$_debug" == 0 ]]; then
inst "$moddir/configuration/bash" '/etc/bash.bashrc'
inst "$moddir/configuration/bash" '/etc/profile.d/aliases'
fi
# endregion
inst_multiple \
awk \
basename bash blockdev \
cat cut curl \
dd diff dirname dmsetup \
find \
grep \
insmod \
lsblk \
mkfifo mktemp mount mountpoint \
sed sleep sort \
tee touch tr
}
# endregion
# region vim modline
# vim: set tabstop=4 shiftwidth=4 expandtab:
# vim: foldmethod=marker foldmarker=region,endregion:
# endregion
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