| #!/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* ]]; } |
| |
| # 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 ]] || { strstr "$1" ".so" && ldd $1 &>/dev/null; }; then |
| echo $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 |
| |
| 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 |
| |
| # Detect lib paths |
| if ! [[ $libdirs ]] ; then |
| if strstr "$(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 |
| export libdirs |
| fi |
| |
| if ! [[ $kernel ]]; then |
| kernel=$(uname -r) |
| export kernel |
| fi |
| |
| srcmods="/lib/modules/$kernel/" |
| [[ $drivers_dir ]] && { |
| if 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() { |
| strstr "$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%/*}; } |
| |
| # 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 |
| } |
| |
| # 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 $@ |
| do |
| _value=$(eval echo \$$_var) |
| [[ ${_value} ]] && echo "${_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 -- "${1//+(\/)//}" |
| shopt -q -u extglob |
| echo "${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" == "$2" ]] && { echo "${1##*/}"; return; } |
| |
| # corner case #2 - own dir link |
| [[ "${1%/*}" == "$2" ]] && { echo "."; 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 |
| |
| echo "$__newpath" |
| } |
| |
| if strstr "$(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}/${_dest}" |
| } |
| fi |
| |
| get_persistent_dev() { |
| local i _tmp _dev |
| |
| _dev=$(udevadm info --query=name --name="$1" 2>/dev/null) |
| [ -z "$_dev" ] && return |
| |
| for i in /dev/mapper/* /dev/disk/by-uuid/* /dev/disk/by-id/*; do |
| [[ $i == /dev/mapper/mpath* ]] && continue |
| _tmp=$(udevadm info --query=name --name="$i" 2>/dev/null) |
| if [ "$_tmp" = "$_dev" ]; then |
| echo $i |
| return |
| fi |
| done |
| } |
| |
| # get_fs_env <device> |
| # Get and set the ID_FS_TYPE and ID_FS_UUID variable from udev for a device. |
| # Example: |
| # $ get_fs_env /dev/sda2; echo $ID_FS_TYPE; echo $ID_FS_UUID |
| # ext4 |
| # 551a39aa-4ae9-4e70-a262-ef665cadb574 |
| get_fs_env() { |
| local evalstr |
| local found |
| |
| [[ $1 ]] || return |
| unset ID_FS_TYPE |
| unset ID_FS_UUID |
| if evalstr=$(udevadm info --query=env --name=$1 \ |
| | { while read line; do |
| strstr "$line" "DEVPATH" && found=1; |
| strstr "$line" "ID_FS_TYPE=" && { echo $line; exit 0;} |
| done; [[ $found ]] && exit 0; exit 1; }) ; then |
| eval $evalstr |
| [[ $ID_FS_TYPE ]] && return 0 |
| return 1 |
| fi |
| |
| # Fallback, if we don't have udev information |
| if find_binary blkid >/dev/null; then |
| eval $(blkid -o udev $1 \ |
| | while read line; do |
| strstr "$line" "ID_FS_TYPE=" && echo $line; |
| done) |
| [[ $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 _dev |
| _dev=$(stat -L -c '$((0x%t)):$((0x%T))' "$1" 2>/dev/null) |
| _dev=$(eval "echo $_dev") |
| echo $_dev |
| } |
| |
| # 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/. ]] |
| while read _majmin _dev; do |
| if [[ -b $_dev ]]; then |
| if ! [[ $_majmin ]] || [[ $_majmin == 0:* ]]; then |
| read _majmin < <(get_maj_min $_dev) |
| fi |
| if [[ $_majmin ]]; then |
| echo $_majmin |
| else |
| echo $_dev |
| fi |
| return 0 |
| fi |
| if [[ $_dev = *:* ]]; then |
| echo $_dev |
| return 0 |
| fi |
| done < <(findmnt -e -v -n -o 'MAJ:MIN,SOURCE' "$_find_mpt") |
| fi |
| # fall back to /etc/fstab |
| |
| while read _majmin _dev; do |
| if ! [[ $_dev ]]; then |
| _dev="$_majmin" |
| unset _majmin |
| fi |
| if [[ -b $_dev ]]; then |
| [[ $_majmin ]] || read _majmin < <(get_maj_min $_dev) |
| if [[ $_majmin ]]; then |
| echo $_majmin |
| else |
| echo $_dev |
| fi |
| return 0 |
| fi |
| if [[ $_dev = *:* ]]; then |
| echo $_dev |
| return 0 |
| fi |
| done < <(findmnt -e --fstab -v -n -o 'MAJ:MIN,SOURCE' "$_find_mpt") |
| |
| 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 |
| while read _fs; do |
| [[ $_fs ]] || continue |
| [[ $_fs = "autofs" ]] && continue |
| echo -n $_fs |
| return 0 |
| done < <(findmnt -e -v -n -o 'FSTYPE' "$1") |
| fi |
| |
| while read _fs; do |
| [[ $_fs ]] || continue |
| [[ $_fs = "autofs" ]] && continue |
| echo -n $_fs |
| return 0 |
| done < <(findmnt --fstab -e -v -n -o 'FSTYPE' "$1") |
| |
| 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 _x _mpt _majmin _dev _fs _maj _min _find_dev |
| _find_dev="$1" |
| [[ "$_find_dev" = /dev* ]] || _find_dev="/dev/block/$_find_dev" |
| find_mp_fstype "$_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 $_ret |
| } |
| |
| host_fs_all() |
| { |
| echo "${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. |
| "$1" $2 && return |
| check_vol_slaves "$@" && return 0 |
| if [[ -f /sys/dev/block/$2/../dev ]]; then |
| check_block_and_slaves $1 $(cat "/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 $(cat "$_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 "$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 $(cat "/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 $(cat "$_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 $_dev) && return 0 |
| done |
| return 1 |
| } |
| |
| # ugly workaround for the lvm design |
| # There is no volume group device, |
| # so, there are no slave devices for volume groups. |
| # Logical volumes only have the slave devices they really live on, |
| # but you cannot create the logical volume without the volume group. |
| # And the volume group might be bigger than the devices the LV needs. |
| check_vol_slaves() { |
| local _lv _vg _pv |
| for i in /dev/mapper/*; do |
| _lv=$(get_maj_min $i) |
| if [[ $_lv = $2 ]]; then |
| _vg=$(lvm lvs --noheadings -o vg_name $i 2>/dev/null) |
| # strip space |
| _vg=$(echo $_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_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} ${DRACUT_FIPS_MODE+-H} "$@" || : |
| } |
| |
| dracut_install() { |
| 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 |
| } |
| |
| 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} ${DRACUT_FIPS_MODE+-H} "$@" || : |
| } |
| |
| else |
| |
| # Install a directory, keeping symlinks as on the original system. |
| # Example: if /lib points to /lib64 on the host, "inst_dir /lib/file" |
| # will create ${initdir}/lib64, ${initdir}/lib64/file, |
| # and a symlink ${initdir}/lib -> lib64. |
| inst_dir() { |
| [[ -e ${initdir}/"$1" ]] && return 0 # already there |
| |
| local _dir="$1" _part="${1%/*}" _file |
| while [[ "$_part" != "${_part%/*}" ]] && ! [[ -e "${initdir}/${_part}" ]]; do |
| _dir="$_part $_dir" |
| _part=${_part%/*} |
| done |
| |
| # iterate over parent directories |
| for _file in $_dir; do |
| [[ -e "${initdir}/$_file" ]] && continue |
| if [[ -L $_file ]]; then |
| inst_symlink "$_file" |
| else |
| # create directory |
| mkdir -m 0755 -p "${initdir}/$_file" || return 1 |
| [[ -e "$_file" ]] && chmod --reference="$_file" "${initdir}/$_file" |
| chmod u+w "${initdir}/$_file" |
| fi |
| done |
| } |
| |
| # $1 = file to copy to ramdisk |
| # $2 (optional) Name for the file on the ramdisk |
| # Location of the image dir is assumed to be $initdir |
| # We never overwrite the target if it exists. |
| inst_simple() { |
| [[ -f "$1" ]] || return 1 |
| strstr "$1" "/" || return 1 |
| local _src=$1 _target="${2:-$1}" |
| |
| [[ -L $_src ]] && { inst_symlink $_src $_target; return $?; } |
| |
| if ! [[ -d ${initdir}/$_target ]]; then |
| [[ -e ${initdir}/$_target ]] && return 0 |
| [[ -L ${initdir}/$_target ]] && return 0 |
| [[ -d "${initdir}/${_target%/*}" ]] || inst_dir "${_target%/*}" |
| fi |
| if [[ $DRACUT_FIPS_MODE ]]; then |
| # install checksum files also |
| if [[ -e "${_src%/*}/.${_src##*/}.hmac" ]]; then |
| inst "${_src%/*}/.${_src##*/}.hmac" "${_target%/*}/.${_target##*/}.hmac" |
| fi |
| if [[ -e "/lib/fipscheck/${_src##*/}.hmac" ]]; then |
| inst "/lib/fipscheck/${_src##*/}.hmac" "/lib/fipscheck/${_target##*/}.hmac" |
| fi |
| if [[ -e "/lib64/fipscheck/${_src##*/}.hmac" ]]; then |
| inst "/lib64/fipscheck/${_src##*/}.hmac" "/lib64/fipscheck/${_target##*/}.hmac" |
| fi |
| fi |
| ddebug "Installing $_src" |
| cp --reflink=auto --sparse=auto -pfL "$_src" "${initdir}/$_target" |
| } |
| |
| # same as above, but specialized for symlinks |
| inst_symlink() { |
| local _src=$1 _target=${2:-$1} _realsrc |
| strstr "$1" "/" || return 1 |
| [[ -L $1 ]] || return 1 |
| [[ -L $initdir/$_target ]] && return 0 |
| _realsrc=$(readlink -f "$_src") |
| if ! [[ -e $initdir/$_realsrc ]]; then |
| if [[ -d $_realsrc ]]; then |
| inst_dir "$_realsrc" |
| else |
| inst "$_realsrc" |
| fi |
| fi |
| [[ ! -e $initdir/${_target%/*} ]] && inst_dir "${_target%/*}" |
| |
| ln_r "${_realsrc}" "${_target}" |
| } |
| |
| # Same as above, but specialized to handle dynamic libraries. |
| # It handles making symlinks according to how the original library |
| # is referenced. |
| inst_library() { |
| local _src="$1" _dest=${2:-$1} _lib _reallib _symlink |
| strstr "$1" "/" || return 1 |
| [[ -e $initdir/$_dest ]] && return 0 |
| if [[ -L $_src ]]; then |
| if [[ $DRACUT_FIPS_MODE ]]; then |
| # install checksum files also |
| if [[ -e "${_src%/*}/.${_src##*/}.hmac" ]]; then |
| inst "${_src%/*}/.${_src##*/}.hmac" "${_dest%/*}/.${_dest##*/}.hmac" |
| fi |
| if [[ -e "/lib/fipscheck/${_src##*/}.hmac" ]]; then |
| inst "/lib/fipscheck/${_src##*/}.hmac" "/lib/fipscheck/${_dest##*/}.hmac" |
| fi |
| if [[ -e "/lib64/fipscheck/${_src##*/}.hmac" ]]; then |
| inst "/lib64/fipscheck/${_src##*/}.hmac" "/lib64/fipscheck/${_dest##*/}.hmac" |
| fi |
| fi |
| _reallib=$(readlink -f "$_src") |
| inst_simple "$_reallib" "$_reallib" |
| inst_dir "${_dest%/*}" |
| ln_r "${_reallib}" "${_dest}" |
| else |
| inst_simple "$_src" "$_dest" |
| fi |
| |
| # Create additional symlinks. See rev_symlinks description. |
| for _symlink in $(rev_lib_symlinks $_src) $(rev_lib_symlinks $_reallib); do |
| [[ ! -e $initdir/$_symlink ]] && { |
| ddebug "Creating extra symlink: $_symlink" |
| inst_symlink $_symlink |
| } |
| done |
| } |
| |
| # Same as above, but specialized to install binary executables. |
| # Install binary executable, and all shared library dependencies, if any. |
| inst_binary() { |
| local _bin _target |
| _bin=$(find_binary "$1") || return 1 |
| _target=${2:-$_bin} |
| [[ -e $initdir/$_target ]] && return 0 |
| local _file _line |
| local _so_regex='([^ ]*/lib[^/]*/[^ ]*\.so[^ ]*)' |
| # I love bash! |
| LC_ALL=C ldd "$_bin" 2>/dev/null | while read _line; do |
| [[ $_line = 'not a dynamic executable' ]] && break |
| |
| if [[ $_line =~ $_so_regex ]]; then |
| _file=${BASH_REMATCH[1]} |
| [[ -e ${initdir}/$_file ]] && continue |
| inst_library "$_file" |
| continue |
| fi |
| |
| if [[ $_line =~ not\ found ]]; then |
| dfatal "Missing a shared library required by $_bin." |
| dfatal "Run \"ldd $_bin\" to find out what it is." |
| dfatal "$_line" |
| dfatal "dracut cannot create an initrd." |
| exit 1 |
| fi |
| done |
| inst_simple "$_bin" "$_target" |
| } |
| |
| # same as above, except for shell scripts. |
| # If your shell script does not start with shebang, it is not a shell script. |
| inst_script() { |
| local _bin |
| _bin=$(find_binary "$1") || return 1 |
| shift |
| local _line _shebang_regex |
| read -r -n 80 _line <"$_bin" |
| # If debug is set, clean unprintable chars to prevent messing up the term |
| [[ $debug ]] && _line=$(echo -n "$_line" | tr -c -d '[:print:][:space:]') |
| _shebang_regex='(#! *)(/[^ ]+).*' |
| [[ $_line =~ $_shebang_regex ]] || return 1 |
| inst "${BASH_REMATCH[2]}" && inst_simple "$_bin" "$@" |
| } |
| |
| # general purpose installation function |
| # Same args as above. |
| inst() { |
| local _x |
| |
| case $# in |
| 1) ;; |
| 2) [[ ! $initdir && -d $2 ]] && export initdir=$2 |
| [[ $initdir = $2 ]] && set $1;; |
| 3) [[ -z $initdir ]] && export initdir=$2 |
| set $1 $3;; |
| *) dfatal "inst only takes 1 or 2 or 3 arguments" |
| exit 1;; |
| esac |
| for _x in inst_symlink inst_script inst_binary inst_simple; do |
| $_x "$@" && return 0 |
| done |
| return 1 |
| } |
| |
| # dracut_install [-o ] <file> [<file> ... ] |
| # Install <file> to the initramfs image |
| # -o optionally install the <file> and don't fail, if it is not there |
| dracut_install() { |
| local _optional=no |
| if [[ $1 = '-o' ]]; then |
| _optional=yes |
| shift |
| fi |
| while (($# > 0)); do |
| if ! inst "$1" ; then |
| if [[ $_optional = yes ]]; then |
| dinfo "Skipping program $1 as it cannot be found and is" \ |
| "flagged to be optional" |
| else |
| dfatal "Failed to install $1" |
| exit 1 |
| fi |
| fi |
| shift |
| done |
| } |
| |
| fi |
| |
| # 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 |
| |
| [[ $_bin ]] && dracut_install "$_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 |
| |
| [[ $_bin ]] && dracut_install "$_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 /etc/udev/rules.d; do |
| if [[ -f $r/$_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 |
| 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 ($3) that does not exist." |
| dfatal "Aborting initrd creation." |
| exit 1 |
| elif ! strstr "$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 ]] && dracut_install $_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 install installkernel |
| . $_moddir/module-setup.sh |
| is_func check || return 0 |
| [ $_forced -ne 0 ] && unset hostonly |
| check $hostonly |
| _ret=$? |
| unset check depends 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 install installkernel |
| . $_moddir/module-setup.sh |
| is_func check || return 1 |
| check 0 |
| _ret=$? |
| unset check depends 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 install installkernel |
| . $_moddir/module-setup.sh |
| is_func depends || return 0 |
| depends |
| _ret=$? |
| unset check depends 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 install installkernel |
| . $_moddir/module-setup.sh |
| is_func install || return 0 |
| install |
| _ret=$? |
| unset check depends 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 install installkernel |
| . $_moddir/module-setup.sh |
| is_func installkernel || return 0 |
| installkernel |
| _ret=$? |
| unset check depends 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. |
| strstr " $mods_to_load " " $_mod " && return 0 |
| strstr " $mods_checked_as_dep " " $_mod " && return 1 |
| |
| # This should never happen, but... |
| [[ -d $_moddir ]] || return 1 |
| |
| [[ $2 ]] || mods_checked_as_dep+=" $_mod " |
| |
| if strstr " $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 strstr " $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 |
| strstr " $add_dracutmodules " " $_moddep " || \ |
| add_dracutmodules+=" $_moddep " |
| strstr " $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 |
| |
| strstr " $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. |
| strstr " $mods_to_load " " $_mod " && return 0 |
| strstr " $mods_checked_as_dep " " $_mod " && return 1 |
| |
| # This should never happen, but... |
| [[ -d $_moddir ]] || return 1 |
| |
| [[ $2 ]] || mods_checked_as_dep+=" $_mod " |
| |
| if strstr " $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 strstr " $dracutmodules $add_dracutmodules $force_add_dracutmodules" " $_mod "; then |
| if strstr " $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 || 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 |
| strstr " $add_dracutmodules " " $_moddep " || \ |
| add_dracutmodules+=" $_moddep " |
| strstr " $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 |
| |
| strstr " $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 |
| _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" |
| [[ $dracutmodules != all ]] && _modcheck="$m $dracutmodules" |
| for _mod in $_modcheck; do |
| strstr "$mods_to_load" "$_mod" && continue |
| strstr "$omit_dracutmodules" "$_mod" && continue |
| derror "dracut module '$_mod' cannot be found or installed." |
| 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 |
| |
| 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/*} |
| |
| 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 |
| ) & |
| |
| 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 |
| fi |
| |
| for _f in modules.builtin.bin modules.builtin; do |
| [[ $srcmods/$_f ]] && break |
| done || { |
| dfatal "No modules.builtin.bin and modules.builtin found!" |
| return 1 |
| } |
| |
| 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" |
| } |
| |
| module_is_host_only() ( |
| local _mod=$1 |
| _mod=${_mod##*/} |
| _mod=${_mod%.ko} |
| |
| [[ "$add_drivers" =~ " ${_mod} " ]] && return 0 |
| |
| # check if module is loaded |
| [[ -d $(echo /sys/module/${_mod//-/_}|{ read a b; echo $a; }) ]] && return 0 |
| |
| # check if module is loadable on the current kernel |
| # this covers the case, where a new module is introduced |
| # or a module was renamed |
| # or a module changed from builtin to a module |
| modinfo -F filename "$_mod" &>/dev/null || return 0 |
| |
| 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/* ]] || continue |
| echo $srcmods/$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 |
| |
| if [[ $omit_drivers ]] && [[ "$1" =~ $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 |
| } |
