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dracut-functions.sh
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#!/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
mkdir -p "$initdir/.kernelmodseen"
fi
DRACUT_KERNEL_LAZY_HASHDIR="$initdir/.kernelmodseen"
fi
if [[ $initdir ]] && ! [[ -d $initdir ]]; then
mkdir -p "$initdir"
fi
# Generic substring function. If $2 is in $1, return 0.
strstr() { [[ $1 = *$2* ]]; }
# helper function for check() in module-setup.sh
# to check for required installed binaries
# issues a standardized warning message
require_binaries() {
local _module_name="${moddir##*/}"
local _ret=0
if [[ "$1" = "-m" ]]; then
_module_name="$2"
shift 2
fi
for cmd in "$@"; do
if ! find_binary "$cmd" &>/dev/null; then
dinfo "$_module_name: Could not find command '$cmd'!"
((_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()
{
local a i
declare -A a
for i in $(
ldconfig -pN 2>/dev/null | while read a b c d; do
[[ "$c" != "=>" ]] && continue
printf "%s\n" ${d%/*};
done
); do
[[ "$i" = "/lib" || "$i" = "/usr/lib" || "$i" = "/lib64" || "$i" = "/usr/lib64" ]] && continue
a["$i"]=1;
done;
printf "%s\n" ${!a[@]}
}
# 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="$drivers_dir"
}
export srcmods
if ! type dinfo >/dev/null 2>&1; then
. "$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%/*}"
}
# is_func <command>
# Check whether $1 is a function.
is_func() {
[[ "$(type -t "$1")" = "function" ]]
}
# 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 _majmin _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 0
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 ]]; 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/*/dev; do
[[ -f $_x ]] || continue
check_block_and_slaves $1 $(<"$_x") && 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" $2; then
_ret=0
fi
check_vol_slaves "$@" && return 0
if [[ -f /sys/dev/block/$2/../dev ]]; 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/*/dev; do
[[ -f $_x ]] || continue
check_block_and_slaves_all $1 $(<"$_x") && _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 0
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 0
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
for i in /dev/mapper/*; do
[[ $i == /dev/mapper/control ]] && continue
_lv=$(get_maj_min $i)
if [[ $_lv = $2 ]]; then
_vg=$(lvm lvs --noheadings -o vg_name $i 2>/dev/null)
# strip space
_vg=$(printf "%s\n" "$_vg")
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
fi
done
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: $_rule"
done
}
inst_rules_wildcard() {
local _target=/etc/udev/rules.d _rule _found
inst_dir "${udevdir}/rules.d"
inst_dir "$_target"
for _rule in ${udevdir}/rules.d/$1 ${dracutbasedir}/rules.d/$1 ; do
if [[ -e $_rule ]]; then
inst_rule_programs "$_rule"
inst_rule_group_owner "$_rule"
inst_rule_initqueue "$_rule"
inst_simple "$_rule"
_found=$_rule
fi
done
if [ -n ${hostonly} ] ; then
for _rule in ${_target}/$1 ; do
if [[ -f $_rule ]]; then
inst_rule_programs "$_rule"
inst_rule_group_owner "$_rule"
inst_rule_initqueue "$_rule"
inst_simple "$_rule"
_found=$_rule
fi
done
fi
[[ $_found ]] || dinfo "Skipping udev rule: $_rule"
}
prepare_udev_rules() {
[ -z "$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
}