Current File : //usr/lib/dracut/dracut-functions.sh
#!/bin/bash
# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
# ex: ts=8 sw=4 sts=4 et filetype=sh
#
# functions used by dracut and other tools.
#
# Copyright 2005-2009 Red Hat, Inc. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
export LC_MESSAGES=C
if [[ $DRACUT_KERNEL_LAZY ]] && ! [[ $DRACUT_KERNEL_LAZY_HASHDIR ]]; then
if [[ -d "$initdir/.kernelmodseen" ]]; then
DRACUT_KERNEL_LAZY_HASHDIR="$initdir/.kernelmodseen"
fi
fi
# Generic substring function. If $2 is in $1, return 0.
strstr() { [[ $1 = *$2* ]]; }
# returns OK if $1 contains literal string $2 at the beginning, and isn't empty
str_starts() { [ "${1#"$2"*}" != "$1" ]; }
# returns OK if $1 contains literal string $2 at the end, and isn't empty
str_ends() { [ "${1%*"$2"}" != "$1" ]; }
# helper function for check() in module-setup.sh
# to check for required installed binaries
# issues a standardized warning message
require_binaries() {
local _module_name="${moddir##*/}"
local _ret=0
if [[ "$1" = "-m" ]]; then
_module_name="$2"
shift 2
fi
for cmd in "$@"; do
if ! find_binary "$cmd" &>/dev/null; then
dinfo "dracut module '${_module_name#[0-9][0-9]}' will not be installed, because command '$cmd' could not be found!"
((_ret++))
fi
done
return $_ret
}
require_any_binary() {
local _module_name="${moddir##*/}"
local _ret=1
if [[ "$1" = "-m" ]]; then
_module_name="$2"
shift 2
fi
for cmd in "$@"; do
if find_binary "$cmd" &>/dev/null; then
_ret=0
break
fi
done
if (( $_ret != 0 )); then
dinfo "$_module_name: Could not find any command of '$@'!"
return 1
fi
return 0
}
# find a binary. If we were not passed the full path directly,
# search in the usual places to find the binary.
find_binary() {
if [[ -z ${1##/*} ]]; then
if [[ -x $1 ]] || { [[ "$1" == *.so* ]] && ldd "$1" &>/dev/null; }; then
printf "%s\n" "$1"
return 0
fi
fi
type -P "${1##*/}"
}
if ! [[ $dracutbasedir ]]; then
dracutbasedir=${BASH_SOURCE[0]%/*}
[[ $dracutbasedir = "dracut-functions" ]] && dracutbasedir="."
[[ $dracutbasedir ]] || dracutbasedir="."
dracutbasedir="$(readlink -f $dracutbasedir)"
fi
ldconfig_paths()
{
ldconfig -pN 2>/dev/null | grep -E -v '/(lib|lib64|usr/lib|usr/lib64)/[^/]*$' | sed -n 's,.* => \(.*\)/.*,\1,p' | sort | uniq
}
# Detect lib paths
if ! [[ $libdirs ]] ; then
if [[ "$(ldd /bin/sh)" == */lib64/* ]] &>/dev/null \
&& [[ -d /lib64 ]]; then
libdirs+=" /lib64"
[[ -d /usr/lib64 ]] && libdirs+=" /usr/lib64"
else
libdirs+=" /lib"
[[ -d /usr/lib ]] && libdirs+=" /usr/lib"
fi
libdirs+=" $(ldconfig_paths)"
export libdirs
fi
if ! [[ $kernel ]]; then
kernel=$(uname -r)
export kernel
fi
# Version comparision function. Assumes Linux style version scheme.
# $1 = version a
# $2 = comparision op (gt, ge, eq, le, lt, ne)
# $3 = version b
vercmp() {
local _n1=(${1//./ }) _op=$2 _n2=(${3//./ }) _i _res
for ((_i=0; ; _i++))
do
if [[ ! ${_n1[_i]}${_n2[_i]} ]]; then _res=0
elif ((${_n1[_i]:-0} > ${_n2[_i]:-0})); then _res=1
elif ((${_n1[_i]:-0} < ${_n2[_i]:-0})); then _res=2
else continue
fi
break
done
case $_op in
gt) ((_res == 1));;
ge) ((_res != 2));;
eq) ((_res == 0));;
le) ((_res != 1));;
lt) ((_res == 2));;
ne) ((_res != 0));;
esac
}
srcmods="/lib/modules/$kernel/"
[[ $drivers_dir ]] && {
if ! command -v kmod &>/dev/null && vercmp "$(modprobe --version | cut -d' ' -f3)" lt 3.7; then
dfatal 'To use --kmoddir option module-init-tools >= 3.7 is required.'
exit 1
fi
srcmods="$drivers_dir"
}
export srcmods
# is_func <command>
# Check whether $1 is a function.
is_func() {
[[ "$(type -t "$1")" = "function" ]]
}
if ! is_func dinfo >/dev/null 2>&1; then
. "$dracutbasedir/dracut-logger.sh"
dlog_init
fi
if ! [[ $initdir ]]; then
dfatal "initdir not set"
exit 1
fi
# export standard hookdirs
[[ $hookdirs ]] || {
hookdirs="cmdline pre-udev pre-trigger netroot "
hookdirs+="initqueue initqueue/settled initqueue/online initqueue/finished initqueue/timeout "
hookdirs+="pre-mount pre-pivot cleanup mount "
hookdirs+="emergency shutdown-emergency pre-shutdown shutdown "
export hookdirs
}
dracut_need_initqueue() {
>"$initdir/lib/dracut/need-initqueue"
}
dracut_module_included() {
[[ " $mods_to_load $modules_loaded " == *\ $*\ * ]]
}
# Create all subdirectories for given path without creating the last element.
# $1 = path
mksubdirs() {
[[ -e ${1%/*} ]] || mkdir -m 0755 -p -- "${1%/*}"
}
# Function prints global variables in format name=value line by line.
# $@ = list of global variables' name
print_vars() {
local _var _value
for _var in "$@"
do
eval printf -v _value "%s" \""\$$_var"\"
[[ ${_value} ]] && printf '%s="%s"\n' "$_var" "$_value"
done
}
# normalize_path <path>
# Prints the normalized path, where it removes any duplicated
# and trailing slashes.
# Example:
# $ normalize_path ///test/test//
# /test/test
normalize_path() {
shopt -q -s extglob
set -- "${1//+(\/)//}"
shopt -q -u extglob
printf "%s\n" "${1%/}"
}
# convert_abs_rel <from> <to>
# Prints the relative path, when creating a symlink to <to> from <from>.
# Example:
# $ convert_abs_rel /usr/bin/test /bin/test-2
# ../../bin/test-2
# $ ln -s $(convert_abs_rel /usr/bin/test /bin/test-2) /usr/bin/test
convert_abs_rel() {
local __current __absolute __abssize __cursize __newpath
local -i __i __level
set -- "$(normalize_path "$1")" "$(normalize_path "$2")"
# corner case #1 - self looping link
[[ "$1" == "$2" ]] && { printf "%s\n" "${1##*/}"; return; }
# corner case #2 - own dir link
[[ "${1%/*}" == "$2" ]] && { printf ".\n"; return; }
IFS="/" __current=($1)
IFS="/" __absolute=($2)
__abssize=${#__absolute[@]}
__cursize=${#__current[@]}
while [[ "${__absolute[__level]}" == "${__current[__level]}" ]]
do
(( __level++ ))
if (( __level > __abssize || __level > __cursize ))
then
break
fi
done
for ((__i = __level; __i < __cursize-1; __i++))
do
if ((__i > __level))
then
__newpath=$__newpath"/"
fi
__newpath=$__newpath".."
done
for ((__i = __level; __i < __abssize; __i++))
do
if [[ -n $__newpath ]]
then
__newpath=$__newpath"/"
fi
__newpath=$__newpath${__absolute[__i]}
done
printf "%s\n" "$__newpath"
}
if [[ "$(ln --help)" == *--relative* ]]; then
ln_r() {
ln -sfnr "${initdir}/$1" "${initdir}/$2"
}
else
ln_r() {
local _source=$1
local _dest=$2
[[ -d "${_dest%/*}" ]] && _dest=$(readlink -f "${_dest%/*}")/${_dest##*/}
ln -sfn -- "$(convert_abs_rel "${_dest}" "${_source}")" "${initdir}/${_dest}"
}
fi
# get_fs_env <device>
# Get and the ID_FS_TYPE variable from udev for a device.
# Example:
# $ get_fs_env /dev/sda2
# ext4
get_fs_env() {
local evalstr
local found
[[ $1 ]] || return
unset ID_FS_TYPE
ID_FS_TYPE=$(blkid -u filesystem -o export -- "$1" \
| while read line; do
if [[ "$line" == TYPE\=* ]]; then
printf "%s" "${line#TYPE=}";
exit 0;
fi
done)
if [[ $ID_FS_TYPE ]]; then
printf "%s" "$ID_FS_TYPE"
return 0
fi
return 1
}
# get_maj_min <device>
# Prints the major and minor of a device node.
# Example:
# $ get_maj_min /dev/sda2
# 8:2
get_maj_min() {
local _maj _min _majmin
_majmin="$(stat -L -c '%t:%T' "$1" 2>/dev/null)"
printf "%s" "$((0x${_majmin%:*})):$((0x${_majmin#*:}))"
}
# get_devpath_block <device>
# get the DEVPATH in /sys of a block device
get_devpath_block() {
local _majmin _i
_majmin=$(get_maj_min "$1")
for _i in /sys/block/*/dev /sys/block/*/*/dev; do
[[ -e "$_i" ]] || continue
if [[ "$_majmin" == "$(<"$_i")" ]]; then
printf "%s" "${_i%/dev}"
return 0
fi
done
return 1
}
# get a persistent path from a device
get_persistent_dev() {
local i _tmp _dev
_dev=$(get_maj_min "$1")
[ -z "$_dev" ] && return
for i in \
/dev/mapper/* \
/dev/disk/${persistent_policy:-by-uuid}/* \
/dev/disk/by-uuid/* \
/dev/disk/by-label/* \
/dev/disk/by-partuuid/* \
/dev/disk/by-partlabel/* \
/dev/disk/by-id/* \
/dev/disk/by-path/* \
; do
[[ -e "$i" ]] || continue
[[ $i == /dev/mapper/control ]] && continue
[[ $i == /dev/mapper/mpath* ]] && continue
_tmp=$(get_maj_min "$i")
if [ "$_tmp" = "$_dev" ]; then
printf -- "%s" "$i"
return
fi
done
}
expand_persistent_dev() {
local _dev=$1
case "$_dev" in
LABEL=*)
_dev="/dev/disk/by-label/${_dev#LABEL=}"
;;
UUID=*)
_dev="${_dev#UUID=}"
_dev="${_dev,,}"
_dev="/dev/disk/by-uuid/${_dev}"
;;
PARTUUID=*)
_dev="${_dev#PARTUUID=}"
_dev="${_dev,,}"
_dev="/dev/disk/by-partuuid/${_dev}"
;;
PARTLABEL=*)
_dev="/dev/disk/by-partlabel/${_dev#PARTLABEL=}"
;;
esac
printf "%s" "$_dev"
}
shorten_persistent_dev() {
local _dev="$1"
case "$_dev" in
/dev/disk/by-uuid/*)
printf "%s" "UUID=${_dev##*/}";;
/dev/disk/by-label/*)
printf "%s" "LABEL=${_dev##*/}";;
/dev/disk/by-partuuid/*)
printf "%s" "PARTUUID=${_dev##*/}";;
/dev/disk/by-partlabel/*)
printf "%s" "PARTLABEL=${_dev##*/}";;
*)
printf "%s" "$_dev";;
esac
}
# find_block_device <mountpoint>
# Prints the major and minor number of the block device
# for a given mountpoint.
# Unless $use_fstab is set to "yes" the functions
# uses /proc/self/mountinfo as the primary source of the
# information and only falls back to /etc/fstab, if the mountpoint
# is not found there.
# Example:
# $ find_block_device /usr
# 8:4
find_block_device() {
local _dev _majmin _find_mpt
_find_mpt="$1"
if [[ $use_fstab != yes ]]; then
[[ -d $_find_mpt/. ]]
findmnt -e -v -n -o 'MAJ:MIN,SOURCE' --target "$_find_mpt" | { \
while read _majmin _dev; do
if [[ -b $_dev ]]; then
if ! [[ $_majmin ]] || [[ $_majmin == 0:* ]]; then
_majmin=$(get_maj_min $_dev)
fi
if [[ $_majmin ]]; then
printf "%s\n" "$_majmin"
else
printf "%s\n" "$_dev"
fi
return 0
fi
if [[ $_dev = *:* ]]; then
printf "%s\n" "$_dev"
return 0
fi
done; return 1; } && return 0
fi
# fall back to /etc/fstab
findmnt -e --fstab -v -n -o 'MAJ:MIN,SOURCE' --target "$_find_mpt" | { \
while read _majmin _dev; do
if ! [[ $_dev ]]; then
_dev="$_majmin"
unset _majmin
fi
if [[ -b $_dev ]]; then
[[ $_majmin ]] || _majmin=$(get_maj_min $_dev)
if [[ $_majmin ]]; then
printf "%s\n" "$_majmin"
else
printf "%s\n" "$_dev"
fi
return 0
fi
if [[ $_dev = *:* ]]; then
printf "%s\n" "$_dev"
return 0
fi
done; return 1; } && return 0
return 1
}
# find_mp_fstype <mountpoint>
# Echo the filesystem type for a given mountpoint.
# /proc/self/mountinfo is taken as the primary source of information
# and /etc/fstab is used as a fallback.
# No newline is appended!
# Example:
# $ find_mp_fstype /;echo
# ext4
find_mp_fstype() {
local _fs
if [[ $use_fstab != yes ]]; then
findmnt -e -v -n -o 'FSTYPE' --target "$1" | { \
while read _fs; do
[[ $_fs ]] || continue
[[ $_fs = "autofs" ]] && continue
printf "%s" "$_fs"
return 0
done; return 1; } && return 0
fi
findmnt --fstab -e -v -n -o 'FSTYPE' --target "$1" | { \
while read _fs; do
[[ $_fs ]] || continue
[[ $_fs = "autofs" ]] && continue
printf "%s" "$_fs"
return 0
done; return 1; } && return 0
return 1
}
# find_dev_fstype <device>
# Echo the filesystem type for a given device.
# /proc/self/mountinfo is taken as the primary source of information
# and /etc/fstab is used as a fallback.
# No newline is appended!
# Example:
# $ find_dev_fstype /dev/sda2;echo
# ext4
find_dev_fstype() {
local _find_dev _fs
_find_dev="$1"
if ! [[ "$_find_dev" = /dev* ]]; then
[[ -b "/dev/block/$_find_dev" ]] && _find_dev="/dev/block/$_find_dev"
fi
if [[ $use_fstab != yes ]]; then
findmnt -e -v -n -o 'FSTYPE' --source "$_find_dev" | { \
while read _fs; do
[[ $_fs ]] || continue
[[ $_fs = "autofs" ]] && continue
printf "%s" "$_fs"
return 0
done; return 1; } && return 0
fi
findmnt --fstab -e -v -n -o 'FSTYPE' --source "$_find_dev" | { \
while read _fs; do
[[ $_fs ]] || continue
[[ $_fs = "autofs" ]] && continue
printf "%s" "$_fs"
return 0
done; return 1; } && return 0
return 1
}
# find_mp_fsopts <mountpoint>
# Echo the filesystem options for a given mountpoint.
# /proc/self/mountinfo is taken as the primary source of information
# and /etc/fstab is used as a fallback.
# No newline is appended!
# Example:
# $ find_mp_fsopts /;echo
# rw,relatime,discard,data=ordered
find_mp_fsopts() {
if [[ $use_fstab != yes ]]; then
findmnt -e -v -n -o 'OPTIONS' --target "$1" 2>/dev/null && return 0
fi
findmnt --fstab -e -v -n -o 'OPTIONS' --target "$1"
}
# find_dev_fsopts <device>
# Echo the filesystem options for a given device.
# /proc/self/mountinfo is taken as the primary source of information
# and /etc/fstab is used as a fallback.
# Example:
# $ find_dev_fsopts /dev/sda2
# rw,relatime,discard,data=ordered
find_dev_fsopts() {
local _find_dev _opts
_find_dev="$1"
if ! [[ "$_find_dev" = /dev* ]]; then
[[ -b "/dev/block/$_find_dev" ]] && _find_dev="/dev/block/$_find_dev"
fi
if [[ $use_fstab != yes ]]; then
findmnt -e -v -n -o 'OPTIONS' --source "$_find_dev" 2>/dev/null && return 0
fi
findmnt --fstab -e -v -n -o 'OPTIONS' --source "$_find_dev"
}
# finds the major:minor of the block device backing the root filesystem.
find_root_block_device() { find_block_device /; }
# for_each_host_dev_fs <func>
# Execute "<func> <dev> <filesystem>" for every "<dev> <fs>" pair found
# in ${host_fs_types[@]}
for_each_host_dev_fs()
{
local _func="$1"
local _dev
local _ret=1
[[ "${#host_fs_types[@]}" ]] || return 2
for _dev in "${!host_fs_types[@]}"; do
$_func "$_dev" "${host_fs_types[$_dev]}" && _ret=0
done
return $_ret
}
host_fs_all()
{
printf "%s\n" "${host_fs_types[@]}"
}
# Walk all the slave relationships for a given block device.
# Stop when our helper function returns success
# $1 = function to call on every found block device
# $2 = block device in major:minor format
check_block_and_slaves() {
local _x
[[ -b /dev/block/$2 ]] || return 1 # Not a block device? So sorry.
if ! lvm_internal_dev $2; then "$1" $2 && return; fi
check_vol_slaves "$@" && return 0
if [[ -f /sys/dev/block/$2/../dev ]] && [[ /sys/dev/block/$2/../subsystem -ef /sys/class/block ]]; then
check_block_and_slaves $1 $(<"/sys/dev/block/$2/../dev") && return 0
fi
[[ -d /sys/dev/block/$2/slaves ]] || return 1
for _x in /sys/dev/block/$2/slaves/*; do
[[ -f $_x/dev ]] || continue
[[ $_x/subsystem -ef /sys/class/block ]] || continue
check_block_and_slaves $1 $(<"$_x/dev") && return 0
done
return 1
}
check_block_and_slaves_all() {
local _x _ret=1
[[ -b /dev/block/$2 ]] || return 1 # Not a block device? So sorry.
if ! lvm_internal_dev $2 && "$1" $2; then
_ret=0
fi
check_vol_slaves_all "$@" && return 0
if [[ -f /sys/dev/block/$2/../dev ]] && [[ /sys/dev/block/$2/../subsystem -ef /sys/class/block ]]; then
check_block_and_slaves_all $1 $(<"/sys/dev/block/$2/../dev") && _ret=0
fi
[[ -d /sys/dev/block/$2/slaves ]] || return 1
for _x in /sys/dev/block/$2/slaves/*; do
[[ -f $_x/dev ]] || continue
[[ $_x/subsystem -ef /sys/class/block ]] || continue
check_block_and_slaves_all $1 $(<"$_x/dev") && _ret=0
done
return $_ret
}
# for_each_host_dev_and_slaves <func>
# Execute "<func> <dev>" for every "<dev>" found
# in ${host_devs[@]} and their slaves
for_each_host_dev_and_slaves_all()
{
local _func="$1"
local _dev
local _ret=1
[[ "${host_devs[@]}" ]] || return 2
for _dev in "${host_devs[@]}"; do
[[ -b "$_dev" ]] || continue
if check_block_and_slaves_all $_func $(get_maj_min $_dev); then
_ret=0
fi
done
return $_ret
}
for_each_host_dev_and_slaves()
{
local _func="$1"
local _dev
[[ "${host_devs[@]}" ]] || return 2
for _dev in "${host_devs[@]}"; do
[[ -b "$_dev" ]] || continue
check_block_and_slaves $_func $(get_maj_min $_dev) && return 0
done
return 1
}
# ugly workaround for the lvm design
# There is no volume group device,
# so, there are no slave devices for volume groups.
# Logical volumes only have the slave devices they really live on,
# but you cannot create the logical volume without the volume group.
# And the volume group might be bigger than the devices the LV needs.
check_vol_slaves() {
local _lv _vg _pv _dm _majmin
_majmin="$2"
_lv="/dev/block/$_majmin"
_dm=/sys/dev/block/$_majmin/dm
[[ -f $_dm/uuid && $(<$_dm/uuid) =~ LVM-* ]] || return 1
_vg=$(dmsetup splitname --noheadings -o vg_name $(<"$_dm/name") )
# strip space
_vg="${_vg//[[:space:]]/}"
if [[ $_vg ]]; then
for _pv in $(lvm vgs --noheadings -o pv_name "$_vg" 2>/dev/null)
do
check_block_and_slaves $1 $(get_maj_min $_pv) && return 0
done
fi
return 1
}
check_vol_slaves_all() {
local _lv _vg _pv _majmin
_majmin="$2"
_lv="/dev/block/$_majmin"
_dm="/sys/dev/block/$_majmin/dm"
[[ -f $_dm/uuid && $(<$_dm/uuid) =~ LVM-* ]] || return 1
_vg=$(dmsetup splitname --noheadings -o vg_name $(<"$_dm/name") )
# strip space
_vg="${_vg//[[:space:]]/}"
if [[ $_vg ]]; then
for _pv in $(lvm vgs --noheadings -o pv_name "$_vg" 2>/dev/null)
do
check_block_and_slaves_all $1 $(get_maj_min $_pv)
done
return 0
fi
return 1
}
# fs_get_option <filesystem options> <search for option>
# search for a specific option in a bunch of filesystem options
# and return the value
fs_get_option() {
local _fsopts=$1
local _option=$2
local OLDIFS="$IFS"
IFS=,
set -- $_fsopts
IFS="$OLDIFS"
while [ $# -gt 0 ]; do
case $1 in
$_option=*)
echo ${1#${_option}=}
break
esac
shift
done
}
if ! [[ $DRACUT_INSTALL ]]; then
DRACUT_INSTALL=$(find_binary dracut-install)
fi
if ! [[ $DRACUT_INSTALL ]] && [[ -x $dracutbasedir/dracut-install ]]; then
DRACUT_INSTALL=$dracutbasedir/dracut-install
fi
if ! [[ -x $DRACUT_INSTALL ]]; then
dfatal "dracut-install not found!"
exit 10
fi
[[ $DRACUT_RESOLVE_LAZY ]] || export DRACUT_RESOLVE_DEPS=1
inst_dir() {
[[ -e ${initdir}/"$1" ]] && return 0 # already there
$DRACUT_INSTALL ${initdir:+-D "$initdir"} -d "$@"
(($? != 0)) && derror $DRACUT_INSTALL ${initdir:+-D "$initdir"} -d "$@" || :
}
inst() {
[[ -e ${initdir}/"${2:-$1}" ]] && return 0 # already there
#dinfo "$DRACUT_INSTALL -l $@"
$DRACUT_INSTALL ${initdir:+-D "$initdir"} ${DRACUT_RESOLVE_DEPS:+-l} ${DRACUT_FIPS_MODE:+-H} "$@"
(($? != 0)) && derror $DRACUT_INSTALL ${initdir:+-D "$initdir"} ${DRACUT_RESOLVE_DEPS:+-l} ${DRACUT_FIPS_MODE:+-H} "$@" || :
}
inst_simple() {
[[ -e ${initdir}/"${2:-$1}" ]] && return 0 # already there
[[ -e $1 ]] || return 1 # no source
$DRACUT_INSTALL ${initdir:+-D "$initdir"} "$@"
(($? != 0)) && derror $DRACUT_INSTALL ${initdir:+-D "$initdir"} "$@" || :
}
inst_symlink() {
[[ -e ${initdir}/"${2:-$1}" ]] && return 0 # already there
[[ -L $1 ]] || return 1
$DRACUT_INSTALL ${initdir:+-D "$initdir"} ${DRACUT_RESOLVE_DEPS:+-l} ${DRACUT_FIPS_MODE:+-H} "$@"
(($? != 0)) && derror $DRACUT_INSTALL ${initdir:+-D "$initdir"} ${DRACUT_RESOLVE_DEPS:+-l} ${DRACUT_FIPS_MODE:+-H} "$@" || :
}
inst_multiple() {
local ret
#dinfo "initdir=$initdir $DRACUT_INSTALL -l $@"
$DRACUT_INSTALL ${initdir:+-D "$initdir"} -a ${DRACUT_RESOLVE_DEPS:+-l} ${DRACUT_FIPS_MODE:+-H} "$@"
ret=$?
(($ret != 0)) && derror $DRACUT_INSTALL ${initdir:+-D "$initdir"} -a ${DRACUT_RESOLVE_DEPS:+-l} ${DRACUT_FIPS_MODE:+-H} "$@" || :
return $ret
}
dracut_install() {
inst_multiple "$@"
}
inst_library() {
[[ -e ${initdir}/"${2:-$1}" ]] && return 0 # already there
[[ -e $1 ]] || return 1 # no source
$DRACUT_INSTALL ${initdir:+-D "$initdir"} ${DRACUT_RESOLVE_DEPS:+-l} ${DRACUT_FIPS_MODE:+-H} "$@"
(($? != 0)) && derror $DRACUT_INSTALL ${initdir:+-D "$initdir"} ${DRACUT_RESOLVE_DEPS:+-l} ${DRACUT_FIPS_MODE:+-H} "$@" || :
}
inst_binary() {
$DRACUT_INSTALL ${initdir:+-D "$initdir"} ${DRACUT_RESOLVE_DEPS:+-l} ${DRACUT_FIPS_MODE:+-H} "$@"
(($? != 0)) && derror $DRACUT_INSTALL ${initdir:+-D "$initdir"} ${DRACUT_RESOLVE_DEPS:+-l} ${DRACUT_FIPS_MODE:+-H} "$@" || :
}
inst_script() {
$DRACUT_INSTALL ${initdir:+-D "$initdir"} ${DRACUT_RESOLVE_DEPS:+-l} ${DRACUT_FIPS_MODE:+-H} "$@"
(($? != 0)) && derror $DRACUT_INSTALL ${initdir:+-D "$initdir"} ${DRACUT_RESOLVE_DEPS:+-l} ${DRACUT_FIPS_MODE:+-H} "$@" || :
}
# find symlinks linked to given library file
# $1 = library file
# Function searches for symlinks by stripping version numbers appended to
# library filename, checks if it points to the same target and finally
# prints the list of symlinks to stdout.
#
# Example:
# rev_lib_symlinks libfoo.so.8.1
# output: libfoo.so.8 libfoo.so
# (Only if libfoo.so.8 and libfoo.so exists on host system.)
rev_lib_symlinks() {
[[ ! $1 ]] && return 0
local fn="$1" orig="$(readlink -f "$1")" links=''
[[ ${fn} == *.so.* ]] || return 1
until [[ ${fn##*.} == so ]]; do
fn="${fn%.*}"
[[ -L ${fn} && $(readlink -f "${fn}") == ${orig} ]] && links+=" ${fn}"
done
echo "${links}"
}
# attempt to install any programs specified in a udev rule
inst_rule_programs() {
local _prog _bin
if grep -qE 'PROGRAM==?"[^ "]+' "$1"; then
for _prog in $(grep -E 'PROGRAM==?"[^ "]+' "$1" | sed -r 's/.*PROGRAM==?"([^ "]+).*/\1/'); do
_bin=""
if [ -x ${udevdir}/$_prog ]; then
_bin=${udevdir}/$_prog
elif [[ "${_prog/\$env\{/}" == "$_prog" ]]; then
_bin=$(find_binary "$_prog") || {
dinfo "Skipping program $_prog using in udev rule ${1##*/} as it cannot be found"
continue;
}
fi
[[ $_bin ]] && inst_binary "$_bin"
done
fi
if grep -qE 'RUN[+=]=?"[^ "]+' "$1"; then
for _prog in $(grep -E 'RUN[+=]=?"[^ "]+' "$1" | sed -r 's/.*RUN[+=]=?"([^ "]+).*/\1/'); do
_bin=""
if [ -x ${udevdir}/$_prog ]; then
_bin=${udevdir}/$_prog
elif [[ "${_prog/\$env\{/}" == "$_prog" ]] && [[ "${_prog}" != "/sbin/initqueue" ]]; then
_bin=$(find_binary "$_prog") || {
dinfo "Skipping program $_prog using in udev rule ${1##*/} as it cannot be found"
continue;
}
fi
[[ $_bin ]] && inst_binary "$_bin"
done
fi
if grep -qE 'IMPORT\{program\}==?"[^ "]+' "$1"; then
for _prog in $(grep -E 'IMPORT\{program\}==?"[^ "]+' "$1" | sed -r 's/.*IMPORT\{program\}==?"([^ "]+).*/\1/'); do
_bin=""
if [ -x ${udevdir}/$_prog ]; then
_bin=${udevdir}/$_prog
elif [[ "${_prog/\$env\{/}" == "$_prog" ]]; then
_bin=$(find_binary "$_prog") || {
dinfo "Skipping program $_prog using in udev rule ${1##*/} as it cannot be found"
continue;
}
fi
[[ $_bin ]] && dracut_install "$_bin"
done
fi
}
# attempt to install any programs specified in a udev rule
inst_rule_group_owner() {
local i
if grep -qE 'OWNER=?"[^ "]+' "$1"; then
for i in $(grep -E 'OWNER=?"[^ "]+' "$1" | sed -r 's/.*OWNER=?"([^ "]+).*/\1/'); do
if ! egrep -q "^$i:" "$initdir/etc/passwd" 2>/dev/null; then
egrep "^$i:" /etc/passwd 2>/dev/null >> "$initdir/etc/passwd"
fi
done
fi
if grep -qE 'GROUP=?"[^ "]+' "$1"; then
for i in $(grep -E 'GROUP=?"[^ "]+' "$1" | sed -r 's/.*GROUP=?"([^ "]+).*/\1/'); do
if ! egrep -q "^$i:" "$initdir/etc/group" 2>/dev/null; then
egrep "^$i:" /etc/group 2>/dev/null >> "$initdir/etc/group"
fi
done
fi
}
inst_rule_initqueue() {
if grep -q -F initqueue "$1"; then
dracut_need_initqueue
fi
}
# udev rules always get installed in the same place, so
# create a function to install them to make life simpler.
inst_rules() {
local _target=/etc/udev/rules.d _rule _found
inst_dir "${udevdir}/rules.d"
inst_dir "$_target"
for _rule in "$@"; do
if [ "${_rule#/}" = "$_rule" ]; then
for r in ${udevdir}/rules.d ${hostonly:+/etc/udev/rules.d}; do
if [[ -e $r/$_rule ]]; then
_found="$r/$_rule"
inst_rule_programs "$_found"
inst_rule_group_owner "$_found"
inst_rule_initqueue "$_found"
inst_simple "$_found"
fi
done
fi
for r in '' $dracutbasedir/rules.d/; do
# skip rules without an absolute path
[[ "${r}$_rule" != /* ]] && continue
if [[ -f ${r}$_rule ]]; then
_found="${r}$_rule"
inst_rule_programs "$_found"
inst_rule_group_owner "$_found"
inst_rule_initqueue "$_found"
inst_simple "$_found" "$_target/${_found##*/}"
fi
done
[[ $_found ]] || dinfo "Skipping udev rule: $_rule"
done
}
prepare_udev_rules() {
[ -z "$UDEVVERSION" ] && export UDEVVERSION=$(udevadm --version)
for f in "$@"; do
f="${initdir}/etc/udev/rules.d/$f"
[ -e "$f" ] || continue
while read line; do
if [ "${line%%IMPORT PATH_ID}" != "$line" ]; then
if [ $UDEVVERSION -ge 174 ]; then
printf '%sIMPORT{builtin}="path_id"\n' "${line%%IMPORT PATH_ID}"
else
printf '%sIMPORT{program}="path_id %%p"\n' "${line%%IMPORT PATH_ID}"
fi
elif [ "${line%%IMPORT BLKID}" != "$line" ]; then
if [ $UDEVVERSION -ge 176 ]; then
printf '%sIMPORT{builtin}="blkid"\n' "${line%%IMPORT BLKID}"
else
printf '%sIMPORT{program}="/sbin/blkid -o udev -p $tempnode"\n' "${line%%IMPORT BLKID}"
fi
else
echo "$line"
fi
done < "${f}" > "${f}.new"
mv "${f}.new" "$f"
done
}
# install function specialized for hooks
# $1 = type of hook, $2 = hook priority (lower runs first), $3 = hook
# All hooks should be POSIX/SuS compliant, they will be sourced by init.
inst_hook() {
if ! [[ -f $3 ]]; then
dfatal "Cannot install a hook ($3) that does not exist."
dfatal "Aborting initrd creation."
exit 1
elif ! [[ "$hookdirs" == *$1* ]]; then
dfatal "No such hook type $1. Aborting initrd creation."
exit 1
fi
inst_simple "$3" "/lib/dracut/hooks/${1}/${2}-${3##*/}"
}
# install any of listed files
#
# If first argument is '-d' and second some destination path, first accessible
# source is installed into this path, otherwise it will installed in the same
# path as source. If none of listed files was installed, function return 1.
# On first successful installation it returns with 0 status.
#
# Example:
#
# inst_any -d /bin/foo /bin/bar /bin/baz
#
# Lets assume that /bin/baz exists, so it will be installed as /bin/foo in
# initramfs.
inst_any() {
local to f
[[ $1 = '-d' ]] && to="$2" && shift 2
for f in "$@"; do
if [[ -e $f ]]; then
[[ $to ]] && inst "$f" "$to" && return 0
inst "$f" && return 0
fi
done
return 1
}
# inst_libdir_file [-n <pattern>] <file> [<file>...]
# Install a <file> located on a lib directory to the initramfs image
# -n <pattern> install matching files
inst_libdir_file() {
local _files
if [[ "$1" == "-n" ]]; then
local _pattern=$2
shift 2
for _dir in $libdirs; do
for _i in "$@"; do
for _f in "$_dir"/$_i; do
[[ "$_f" =~ $_pattern ]] || continue
[[ -e "$_f" ]] && _files+="$_f "
done
done
done
else
for _dir in $libdirs; do
for _i in "$@"; do
for _f in "$_dir"/$_i; do
[[ -e "$_f" ]] && _files+="$_f "
done
done
done
fi
[[ $_files ]] && inst_multiple $_files
}
# install function decompressing the target and handling symlinks
# $@ = list of compressed (gz or bz2) files or symlinks pointing to such files
#
# Function install targets in the same paths inside overlay but decompressed
# and without extensions (.gz, .bz2).
inst_decompress() {
local _src _cmd
for _src in $@
do
case ${_src} in
*.gz) _cmd='gzip -f -d' ;;
*.bz2) _cmd='bzip2 -d' ;;
*) return 1 ;;
esac
inst_simple ${_src}
# Decompress with chosen tool. We assume that tool changes name e.g.
# from 'name.gz' to 'name'.
${_cmd} "${initdir}${_src}"
done
}
# It's similar to above, but if file is not compressed, performs standard
# install.
# $@ = list of files
inst_opt_decompress() {
local _src
for _src in $@
do
inst_decompress "${_src}" || inst "${_src}"
done
}
# module_check <dracut module>
# execute the check() function of module-setup.sh of <dracut module>
# or the "check" script, if module-setup.sh is not found
# "check $hostonly" is called
module_check() {
local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
local _ret
local _forced=0
local _hostonly=$hostonly
[ $# -eq 2 ] && _forced=$2
[[ -d $_moddir ]] || return 1
if [[ ! -f $_moddir/module-setup.sh ]]; then
# if we do not have a check script, we are unconditionally included
[[ -x $_moddir/check ]] || return 0
[ $_forced -ne 0 ] && unset hostonly
$_moddir/check $hostonly
_ret=$?
else
unset check depends cmdline install installkernel
check() { true; }
. $_moddir/module-setup.sh
is_func check || return 0
[ $_forced -ne 0 ] && unset hostonly
moddir=$_moddir check $hostonly
_ret=$?
unset check depends cmdline install installkernel
fi
hostonly=$_hostonly
return $_ret
}
# module_check_mount <dracut module>
# execute the check() function of module-setup.sh of <dracut module>
# or the "check" script, if module-setup.sh is not found
# "mount_needs=1 check 0" is called
module_check_mount() {
local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
local _ret
mount_needs=1
[[ -d $_moddir ]] || return 1
if [[ ! -f $_moddir/module-setup.sh ]]; then
# if we do not have a check script, we are unconditionally included
[[ -x $_moddir/check ]] || return 0
mount_needs=1 $_moddir/check 0
_ret=$?
else
unset check depends cmdline install installkernel
check() { false; }
. $_moddir/module-setup.sh
moddir=$_moddir check 0
_ret=$?
unset check depends cmdline install installkernel
fi
unset mount_needs
return $_ret
}
# module_depends <dracut module>
# execute the depends() function of module-setup.sh of <dracut module>
# or the "depends" script, if module-setup.sh is not found
module_depends() {
local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
local _ret
[[ -d $_moddir ]] || return 1
if [[ ! -f $_moddir/module-setup.sh ]]; then
# if we do not have a check script, we have no deps
[[ -x $_moddir/check ]] || return 0
$_moddir/check -d
return $?
else
unset check depends cmdline install installkernel
depends() { true; }
. $_moddir/module-setup.sh
moddir=$_moddir depends
_ret=$?
unset check depends cmdline install installkernel
return $_ret
fi
}
# module_cmdline <dracut module>
# execute the cmdline() function of module-setup.sh of <dracut module>
# or the "cmdline" script, if module-setup.sh is not found
module_cmdline() {
local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
local _ret
[[ -d $_moddir ]] || return 1
if [[ ! -f $_moddir/module-setup.sh ]]; then
[[ -x $_moddir/cmdline ]] && . "$_moddir/cmdline"
return $?
else
unset check depends cmdline install installkernel
cmdline() { true; }
. $_moddir/module-setup.sh
moddir=$_moddir cmdline
_ret=$?
unset check depends cmdline install installkernel
return $_ret
fi
}
# module_install <dracut module>
# execute the install() function of module-setup.sh of <dracut module>
# or the "install" script, if module-setup.sh is not found
module_install() {
local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
local _ret
[[ -d $_moddir ]] || return 1
if [[ ! -f $_moddir/module-setup.sh ]]; then
[[ -x $_moddir/install ]] && . "$_moddir/install"
return $?
else
unset check depends cmdline install installkernel
install() { true; }
. $_moddir/module-setup.sh
moddir=$_moddir install
_ret=$?
unset check depends cmdline install installkernel
return $_ret
fi
}
# module_installkernel <dracut module>
# execute the installkernel() function of module-setup.sh of <dracut module>
# or the "installkernel" script, if module-setup.sh is not found
module_installkernel() {
local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
local _ret
[[ -d $_moddir ]] || return 1
if [[ ! -f $_moddir/module-setup.sh ]]; then
[[ -x $_moddir/installkernel ]] && . "$_moddir/installkernel"
return $?
else
unset check depends cmdline install installkernel
installkernel() { true; }
. $_moddir/module-setup.sh
moddir=$_moddir installkernel
_ret=$?
unset check depends cmdline install installkernel
return $_ret
fi
}
# check_mount <dracut module>
# check_mount checks, if a dracut module is needed for the given
# device and filesystem types in "${host_fs_types[@]}"
check_mount() {
local _mod=$1
local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
local _ret
local _moddep
[ "${#host_fs_types[@]}" -le 0 ] && return 1
# If we are already scheduled to be loaded, no need to check again.
[[ " $mods_to_load " == *\ $_mod\ * ]] && return 0
[[ " $mods_checked_as_dep " == *\ $_mod\ * ]] && return 1
# This should never happen, but...
[[ -d $_moddir ]] || return 1
[[ $2 ]] || mods_checked_as_dep+=" $_mod "
if [[ " $omit_dracutmodules " == *\ $_mod\ * ]]; then
return 1
fi
if [[ " $dracutmodules $add_dracutmodules $force_add_dracutmodules" == *\ $_mod\ * ]]; then
module_check_mount $_mod; ret=$?
# explicit module, so also accept ret=255
[[ $ret = 0 || $ret = 255 ]] || return 1
else
# module not in our list
if [[ $dracutmodules = all ]]; then
# check, if we can and should install this module
module_check_mount $_mod || return 1
else
# skip this module
return 1
fi
fi
for _moddep in $(module_depends $_mod); do
# handle deps as if they were manually added
[[ " $dracutmodules " == *\ $_mod\ * ]] \
&& [[ " $dracutmodules " != *\ $_moddep\ * ]] \
&& dracutmodules+=" $_moddep "
[[ " $add_dracutmodules " == *\ $_mod\ * ]] \
&& [[ " $add_dracutmodules " != *\ $_moddep\ * ]] \
&& add_dracutmodules+=" $_moddep "
[[ " $force_add_dracutmodules " == *\ $_mod\ * ]] \
&& [[ " $force_add_dracutmodules " != *\ $_moddep\ * ]] \
&& force_add_dracutmodules+=" $_moddep "
# if a module we depend on fail, fail also
if ! check_module $_moddep; then
derror "dracut module '$_mod' depends on '$_moddep', which can't be installed"
return 1
fi
done
[[ " $mods_to_load " == *\ $_mod\ * ]] || \
mods_to_load+=" $_mod "
return 0
}
# check_module <dracut module> [<use_as_dep>]
# check if a dracut module is to be used in the initramfs process
# if <use_as_dep> is set, then the process also keeps track
# that the modules were checked for the dependency tracking process
check_module() {
local _mod=$1
local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
local _ret
local _moddep
# If we are already scheduled to be loaded, no need to check again.
[[ " $mods_to_load " == *\ $_mod\ * ]] && return 0
[[ " $mods_checked_as_dep " == *\ $_mod\ * ]] && return 1
# This should never happen, but...
[[ -d $_moddir ]] || return 1
[[ $2 ]] || mods_checked_as_dep+=" $_mod "
if [[ " $omit_dracutmodules " == *\ $_mod\ * ]]; then
dinfo "dracut module '$_mod' will not be installed, because it's in the list to be omitted!"
return 1
fi
if [[ " $dracutmodules $add_dracutmodules $force_add_dracutmodules" == *\ $_mod\ * ]]; then
if [[ " $dracutmodules $force_add_dracutmodules " == *\ $_mod\ * ]]; then
module_check $_mod 1; ret=$?
else
module_check $_mod 0; ret=$?
fi
# explicit module, so also accept ret=255
[[ $ret = 0 || $ret = 255 ]] || return 1
else
# module not in our list
if [[ $dracutmodules = all ]]; then
# check, if we can and should install this module
module_check $_mod; ret=$?
if [[ $ret != 0 ]]; then
[[ $2 ]] && return 1
[[ $ret != 255 ]] && return 1
fi
else
# skip this module
return 1
fi
fi
for _moddep in $(module_depends $_mod); do
# handle deps as if they were manually added
[[ " $dracutmodules " == *\ $_mod\ * ]] \
&& [[ " $dracutmodules " != *\ $_moddep\ * ]] \
&& dracutmodules+=" $_moddep "
[[ " $add_dracutmodules " == *\ $_mod\ * ]] \
&& [[ " $add_dracutmodules " != *\ $_moddep\ * ]] \
&& add_dracutmodules+=" $_moddep "
[[ " $force_add_dracutmodules " == *\ $_mod\ * ]] \
&& [[ " $force_add_dracutmodules " != *\ $_moddep\ * ]] \
&& force_add_dracutmodules+=" $_moddep "
# if a module we depend on fail, fail also
if ! check_module $_moddep; then
derror "dracut module '$_mod' depends on '$_moddep', which can't be installed"
return 1
fi
done
[[ " $mods_to_load " == *\ $_mod\ * ]] || \
mods_to_load+=" $_mod "
return 0
}
# for_each_module_dir <func>
# execute "<func> <dracut module> 1"
for_each_module_dir() {
local _modcheck
local _mod
local _moddir
local _func
_func=$1
for _moddir in "$dracutbasedir/modules.d"/[0-9][0-9]*; do
[[ -d $_moddir ]] || continue;
[[ -e $_moddir/install || -e $_moddir/installkernel || \
-e $_moddir/module-setup.sh ]] || continue
_mod=${_moddir##*/}; _mod=${_mod#[0-9][0-9]}
$_func $_mod 1
done
# Report any missing dracut modules, the user has specified
_modcheck="$add_dracutmodules $force_add_dracutmodules"
[[ $dracutmodules != all ]] && _modcheck="$_modcheck $dracutmodules"
for _mod in $_modcheck; do
[[ " $mods_to_load " == *\ $_mod\ * ]] && continue
[[ " $force_add_dracutmodules " != *\ $_mod\ * ]] \
&& [[ " $dracutmodules " != *\ $_mod\ * ]] \
&& [[ " $omit_dracutmodules " == *\ $_mod\ * ]] \
&& continue
derror "dracut module '$_mod' cannot be found or installed."
[[ " $force_add_dracutmodules " == *\ $_mod\ * ]] && exit 1
[[ " $dracutmodules " == *\ $_mod\ * ]] && exit 1
[[ " $add_dracutmodules " == *\ $_mod\ * ]] && exit 1
done
}
# Install a single kernel module along with any firmware it may require.
# $1 = full path to kernel module to install
install_kmod_with_fw() {
# no need to go further if the module is already installed
[[ -e "${initdir}/lib/modules/$kernel/${1##*/lib/modules/$kernel/}" ]] \
&& return 0
if [[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && [[ -e "$DRACUT_KERNEL_LAZY_HASHDIR/${1##*/}" ]]; then
read ret < "$DRACUT_KERNEL_LAZY_HASHDIR/${1##*/}"
return $ret
fi
if [[ $omit_drivers ]]; then
local _kmod=${1##*/}
_kmod=${_kmod%.ko}
_kmod=${_kmod/-/_}
if [[ "$_kmod" =~ $omit_drivers ]]; then
dinfo "Omitting driver $_kmod"
return 0
fi
if [[ "${1##*/lib/modules/$kernel/}" =~ $omit_drivers ]]; then
dinfo "Omitting driver $_kmod"
return 0
fi
fi
if [[ $silent_omit_drivers ]]; then
local _kmod=${1##*/}
_kmod=${_kmod%.ko}
_kmod=${_kmod/-/_}
[[ "$_kmod" =~ $silent_omit_drivers ]] && return 0
[[ "${1##*/lib/modules/$kernel/}" =~ $silent_omit_drivers ]] && return 0
fi
inst_simple "$1" "/lib/modules/$kernel/${1##*/lib/modules/$kernel/}"
ret=$?
[[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && \
[[ -d "$DRACUT_KERNEL_LAZY_HASHDIR" ]] && \
echo $ret > "$DRACUT_KERNEL_LAZY_HASHDIR/${1##*/}"
(($ret != 0)) && return $ret
local _modname=${1##*/} _fwdir _found _fw
_modname=${_modname%.ko*}
for _fw in $(modinfo -k $kernel -F firmware $1 2>/dev/null); do
_found=''
for _fwdir in $fw_dir; do
if [[ -d $_fwdir && -f $_fwdir/$_fw ]]; then
inst_simple "$_fwdir/$_fw" "/lib/firmware/$_fw"
_found=yes
fi
done
if [[ $_found != yes ]]; then
if ! [[ -d $(echo /sys/module/${_modname//-/_}|{ read a b; echo $a; }) ]]; then
dinfo "Possible missing firmware \"${_fw}\" for kernel module" \
"\"${_modname}.ko\""
else
dwarn "Possible missing firmware \"${_fw}\" for kernel module" \
"\"${_modname}.ko\""
fi
fi
done
return 0
}
# Do something with all the dependencies of a kernel module.
# Note that kernel modules depend on themselves using the technique we use
# $1 = function to call for each dependency we find
# It will be passed the full path to the found kernel module
# $2 = module to get dependencies for
# rest of args = arguments to modprobe
# _fderr specifies FD passed from surrounding scope
for_each_kmod_dep() {
local _func=$1 _kmod=$2 _cmd _modpath _options
shift 2
modprobe "$@" --ignore-install --show-depends $_kmod 2>&${_fderr} | (
while read _cmd _modpath _options; do
[[ $_cmd = insmod ]] || continue
$_func ${_modpath} || exit $?
done
)
}
dracut_kernel_post() {
local _moddirname=${srcmods%%/lib/modules/*}
local _pid
if [[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && [[ -f "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist" ]]; then
xargs -r modprobe -a ${_moddirname:+-d ${_moddirname}/} \
--ignore-install --show-depends --set-version $kernel \
< "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist" 2>/dev/null \
| sort -u \
| while read _cmd _modpath _options; do
[[ $_cmd = insmod ]] || continue
echo "$_modpath"
done > "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist.dep"
(
if [[ $DRACUT_INSTALL ]] && [[ -z $_moddirname ]]; then
xargs -r $DRACUT_INSTALL ${initdir:+-D "$initdir"} -a < "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist.dep"
else
while read _modpath; do
local _destpath=$_modpath
[[ $_moddirname ]] && _destpath=${_destpath##$_moddirname/}
_destpath=${_destpath##*/lib/modules/$kernel/}
inst_simple "$_modpath" "/lib/modules/$kernel/${_destpath}" || exit $?
done < "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist.dep"
fi
) &
_pid=$(jobs -p | while read a ; do printf ":$a";done)
_pid=${_pid##*:}
if [[ $DRACUT_INSTALL ]]; then
xargs -r modinfo -k $kernel -F firmware < "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist.dep" \
| while read line; do
for _fwdir in $fw_dir; do
echo $_fwdir/$line;
done;
done | xargs -r $DRACUT_INSTALL ${initdir:+-D "$initdir"} -a -o
else
for _fw in $(xargs -r modinfo -k $kernel -F firmware < "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist.dep"); do
for _fwdir in $fw_dir; do
if [[ -d $_fwdir && -f $_fwdir/$_fw ]]; then
inst_simple "$_fwdir/$_fw" "/lib/firmware/$_fw"
break
fi
done
done
fi
wait $_pid
fi
for _f in modules.builtin.bin modules.builtin modules.order; do
[[ $srcmods/$_f ]] && inst_simple "$srcmods/$_f" "/lib/modules/$kernel/$_f"
done
# generate module dependencies for the initrd
if [[ -d $initdir/lib/modules/$kernel ]] && \
! depmod -a -b "$initdir" $kernel; then
dfatal "\"depmod -a $kernel\" failed."
exit 1
fi
[[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && rm -fr -- "$DRACUT_KERNEL_LAZY_HASHDIR"
}
[[ "$kernel_current" ]] || export kernel_current=$(uname -r)
module_is_host_only() {
local _mod=$1
local _modenc a i _k _s _v _aliases
_mod=${_mod##*/}
_mod=${_mod%.ko}
_modenc=${_mod//-/_}
[[ " $add_drivers " == *\ ${_mod}\ * ]] && return 0
# check if module is loaded
[[ ${host_modules["$_modenc"]} ]] && return 0
[[ "$kernel_current" ]] || export kernel_current=$(uname -r)
if [[ "$kernel_current" != "$kernel" ]]; then
# check if module is loadable on the current kernel
# this covers the case, where a new module is introduced
# or a module was renamed
# or a module changed from builtin to a module
if [[ -d /lib/modules/$kernel_current ]]; then
# if the modinfo can be parsed, but the module
# is not loaded, then we can safely return 1
modinfo -F filename "$_mod" &>/dev/null && return 1
fi
_aliases=$(modinfo -k $kernel -F alias $_mod 2>/dev/null)
# if the module has no aliases, install it
[[ $_aliases ]] || return 0
# finally check all modalias
for a in $_aliases; do
for i in "${!host_modalias[@]}"; do
[[ $i == $a ]] && return 0
done
done
fi
return 1
}
find_kernel_modules_by_path () {
local _OLDIFS
[[ -f "$srcmods/modules.dep" ]] || return 0
_OLDIFS=$IFS
IFS=:
while read a rest; do
[[ $a = */$1/* ]] || [[ $a = updates/* ]] || [[ $a = extra/* ]] || [[ $a = weak-updates/* ]] ||continue
printf "%s\n" "$srcmods/$a"
done < "$srcmods/modules.dep"
IFS=$_OLDIFS
return 0
}
find_kernel_modules () {
find_kernel_modules_by_path drivers
}
# instmods [-c [-s]] <kernel module> [<kernel module> ... ]
# instmods [-c [-s]] <kernel subsystem>
# install kernel modules along with all their dependencies.
# <kernel subsystem> can be e.g. "=block" or "=drivers/usb/storage"
instmods() {
[[ $no_kernel = yes ]] && return
# called [sub]functions inherit _fderr
local _fderr=9
local _check=no
local _silent=no
if [[ $1 = '-c' ]]; then
_check=yes
shift
fi
if [[ $1 = '-s' ]]; then
_silent=yes
shift
fi
function inst1mod() {
local _ret=0 _mod="$1"
case $_mod in
=*)
( [[ "$_mpargs" ]] && echo $_mpargs
find_kernel_modules_by_path "${_mod#=}" ) \
| instmods
((_ret+=$?))
;;
--*) _mpargs+=" $_mod" ;;
*)
_mod=${_mod##*/}
# if we are already installed, skip this module and go on
# to the next one.
if [[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && \
[[ -f "$DRACUT_KERNEL_LAZY_HASHDIR/${_mod%.ko}.ko" ]]; then
read _ret <"$DRACUT_KERNEL_LAZY_HASHDIR/${_mod%.ko}.ko"
return $_ret
fi
_mod=${_mod/-/_}
if [[ $omit_drivers ]] && [[ "$_mod" =~ $omit_drivers ]]; then
dinfo "Omitting driver ${_mod##$srcmods}"
return 0
fi
# If we are building a host-specific initramfs and this
# module is not already loaded, move on to the next one.
[[ $hostonly ]] \
&& ! module_is_host_only "$_mod" \
&& return 0
if [[ "$_check" = "yes" ]] || ! [[ $DRACUT_KERNEL_LAZY_HASHDIR ]]; then
# We use '-d' option in modprobe only if modules prefix path
# differs from default '/'. This allows us to use dracut with
# old version of modprobe which doesn't have '-d' option.
local _moddirname=${srcmods%%/lib/modules/*}
[[ -n ${_moddirname} ]] && _moddirname="-d ${_moddirname}/"
# ok, load the module, all its dependencies, and any firmware
# it may require
for_each_kmod_dep install_kmod_with_fw $_mod \
--set-version $kernel ${_moddirname} $_mpargs
((_ret+=$?))
else
[[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && \
echo $_mod >> "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist"
fi
;;
esac
return $_ret
}
function instmods_1() {
local _mod _mpargs
if (($# == 0)); then # filenames from stdin
while read _mod; do
inst1mod "${_mod%.ko*}" || {
if [[ "$_check" == "yes" ]]; then
[[ "$_silent" == "no" ]] && dfatal "Failed to install module $_mod"
return 1
fi
}
done
fi
while (($# > 0)); do # filenames as arguments
inst1mod ${1%.ko*} || {
if [[ "$_check" == "yes" ]]; then
[[ "$_silent" == "no" ]] && dfatal "Failed to install module $1"
return 1
fi
}
shift
done
return 0
}
local _ret _filter_not_found='FATAL: Module .* not found.'
# Capture all stderr from modprobe to _fderr. We could use {var}>...
# redirections, but that would make dracut require bash4 at least.
eval "( instmods_1 \"\$@\" ) ${_fderr}>&1" \
| while read line; do [[ "$line" =~ $_filter_not_found ]] || echo $line;done | derror
_ret=$?
return $_ret
}
# get_cpu_vendor
# Only two values are returned: AMD or Intel
get_cpu_vendor ()
{
if grep -qE AMD /proc/cpuinfo; then
printf "AMD"
fi
if grep -qE Intel /proc/cpuinfo; then
printf "Intel"
fi
}
# get_host_ucode
# Get the hosts' ucode file based on the /proc/cpuinfo
get_ucode_file ()
{
local family=`grep -E "cpu family" /proc/cpuinfo | head -1 | sed s/.*:\ //`
local model=`grep -E "model" /proc/cpuinfo |grep -v name | head -1 | sed s/.*:\ //`
local stepping=`grep -E "stepping" /proc/cpuinfo | head -1 | sed s/.*:\ //`
if [[ "$(get_cpu_vendor)" == "AMD" ]]; then
if [[ $family -ge 21 ]]; then
printf "microcode_amd_fam%xh.bin" $family
else
printf "microcode_amd.bin"
fi
fi
if [[ "$(get_cpu_vendor)" == "Intel" ]]; then
# The /proc/cpuinfo are in decimal.
printf "%02x-%02x-%02x" ${family} ${model} ${stepping}
fi
}
# Get currently loaded modules
# sorted, and delimited by newline
get_loaded_kernel_modules ()
{
local modules=( )
while read _module _size _used _used_by; do
modules+=( "$_module" )
done <<< "$(lsmod | sed -n '1!p')"
printf '%s\n' "${modules[@]}" | sort
}
# Not every device in /dev/mapper should be examined.
# If it is an LVM device, touch only devices which have /dev/VG/LV symlink.
lvm_internal_dev() {
local dev_dm_dir=/sys/dev/block/$1/dm
[[ ! -f $dev_dm_dir/uuid || $(<$dev_dm_dir/uuid) != LVM-* ]] && return 1 # Not an LVM device
local DM_VG_NAME DM_LV_NAME DM_LV_LAYER
eval $(dmsetup splitname --nameprefixes --noheadings --rows "$(<$dev_dm_dir/name)" 2>/dev/null)
[[ ${DM_VG_NAME} ]] && [[ ${DM_LV_NAME} ]] || return 0 # Better skip this!
[[ ${DM_LV_LAYER} ]] || [[ ! -L /dev/${DM_VG_NAME}/${DM_LV_NAME} ]]
}
# Use with form hostonly="$(optional_hostonly)" inst_xxxx <args>
# If hosotnly mode is set to "strict", hostonly restrictions will still
# be applied, else will ignore hostonly mode and try to install all
# given modules.
optional_hostonly() {
if [[ $hostonly_mode = "strict" ]]; then
printf -- "$hostonly"
else
printf ""
fi
}
Mini Shell