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1671 lines
53 KiB
1671 lines
53 KiB
#!/bin/bash |
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# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*- |
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# ex: ts=8 sw=4 sts=4 et filetype=sh |
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# |
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# functions used by dracut and other tools. |
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# |
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# Copyright 2005-2009 Red Hat, Inc. All rights reserved. |
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# |
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# This program is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program. If not, see <http://www.gnu.org/licenses/>. |
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# |
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export LC_MESSAGES=C |
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if [[ $DRACUT_KERNEL_LAZY ]] && ! [[ $DRACUT_KERNEL_LAZY_HASHDIR ]]; then |
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if ! [[ -d "$initdir/.kernelmodseen" ]]; then |
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mkdir -p "$initdir/.kernelmodseen" |
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fi |
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DRACUT_KERNEL_LAZY_HASHDIR="$initdir/.kernelmodseen" |
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fi |
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if [[ $initdir ]] && ! [[ -d $initdir ]]; then |
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mkdir -p "$initdir" |
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fi |
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# Generic substring function. If $2 is in $1, return 0. |
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strstr() { [[ $1 = *$2* ]]; } |
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|
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# find a binary. If we were not passed the full path directly, |
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# search in the usual places to find the binary. |
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find_binary() { |
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if [[ -z ${1##/*} ]]; then |
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if [[ -x $1 ]] || { strstr "$1" ".so" && ldd $1 &>/dev/null; }; then |
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echo $1 |
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return 0 |
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fi |
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fi |
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type -P ${1##*/} |
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} |
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|
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if ! [[ $dracutbasedir ]]; then |
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dracutbasedir=${BASH_SOURCE[0]%/*} |
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[[ $dracutbasedir = "dracut-functions" ]] && dracutbasedir="." |
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[[ $dracutbasedir ]] || dracutbasedir="." |
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dracutbasedir="$(readlink -f $dracutbasedir)" |
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fi |
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if ! [[ $DRACUT_INSTALL ]]; then |
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DRACUT_INSTALL=$(find_binary dracut-install) |
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fi |
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if ! [[ $DRACUT_INSTALL ]] && [[ -x $dracutbasedir/dracut-install ]]; then |
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DRACUT_INSTALL=$dracutbasedir/dracut-install |
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fi |
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# Detect lib paths |
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if ! [[ $libdirs ]] ; then |
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if strstr "$(ldd /bin/sh)" "/lib64/" &>/dev/null \ |
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&& [[ -d /lib64 ]]; then |
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libdirs+=" /lib64" |
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[[ -d /usr/lib64 ]] && libdirs+=" /usr/lib64" |
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else |
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libdirs+=" /lib" |
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[[ -d /usr/lib ]] && libdirs+=" /usr/lib" |
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fi |
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export libdirs |
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fi |
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|
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if ! [[ $kernel ]]; then |
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kernel=$(uname -r) |
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export kernel |
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fi |
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srcmods="/lib/modules/$kernel/" |
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[[ $drivers_dir ]] && { |
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if vercmp $(modprobe --version | cut -d' ' -f3) lt 3.7; then |
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dfatal 'To use --kmoddir option module-init-tools >= 3.7 is required.' |
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exit 1 |
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fi |
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srcmods="$drivers_dir" |
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} |
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export srcmods |
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if ! type dinfo >/dev/null 2>&1; then |
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. "$dracutbasedir/dracut-logger.sh" |
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dlog_init |
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fi |
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if ! [[ $initdir ]]; then |
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dfatal "initdir not set" |
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exit 1 |
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fi |
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# export standard hookdirs |
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[[ $hookdirs ]] || { |
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hookdirs="cmdline pre-udev pre-trigger netroot " |
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hookdirs+="initqueue initqueue/settled initqueue/online initqueue/finished initqueue/timeout " |
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hookdirs+="pre-mount pre-pivot cleanup mount " |
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hookdirs+="emergency shutdown-emergency pre-shutdown shutdown " |
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export hookdirs |
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} |
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dracut_need_initqueue() { |
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>"$initdir/lib/dracut/need-initqueue" |
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} |
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dracut_module_included() { |
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strstr "$mods_to_load $modules_loaded" "$@" |
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} |
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# Create all subdirectories for given path without creating the last element. |
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# $1 = path |
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mksubdirs() { [[ -e ${1%/*} ]] || mkdir -m 0755 -p ${1%/*}; } |
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|
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# Version comparision function. Assumes Linux style version scheme. |
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# $1 = version a |
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# $2 = comparision op (gt, ge, eq, le, lt, ne) |
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# $3 = version b |
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vercmp() { |
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local _n1=(${1//./ }) _op=$2 _n2=(${3//./ }) _i _res |
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for ((_i=0; ; _i++)) |
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do |
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if [[ ! ${_n1[_i]}${_n2[_i]} ]]; then _res=0 |
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elif ((${_n1[_i]:-0} > ${_n2[_i]:-0})); then _res=1 |
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elif ((${_n1[_i]:-0} < ${_n2[_i]:-0})); then _res=2 |
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else continue |
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fi |
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break |
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done |
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case $_op in |
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gt) ((_res == 1));; |
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ge) ((_res != 2));; |
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eq) ((_res == 0));; |
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le) ((_res != 1));; |
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lt) ((_res == 2));; |
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ne) ((_res != 0));; |
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esac |
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} |
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# is_func <command> |
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# Check whether $1 is a function. |
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is_func() { |
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[[ $(type -t $1) = "function" ]] |
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} |
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# Function prints global variables in format name=value line by line. |
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# $@ = list of global variables' name |
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print_vars() { |
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local _var _value |
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|
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for _var in $@ |
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do |
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_value=$(eval echo \$$_var) |
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[[ ${_value} ]] && echo "${_var}=\"${_value}\"" |
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done |
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} |
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# normalize_path <path> |
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# Prints the normalized path, where it removes any duplicated |
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# and trailing slashes. |
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# Example: |
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# $ normalize_path ///test/test// |
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# /test/test |
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normalize_path() { |
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shopt -q -s extglob |
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set -- "${1//+(\/)//}" |
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shopt -q -u extglob |
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echo "${1%/}" |
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} |
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# convert_abs_rel <from> <to> |
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# Prints the relative path, when creating a symlink to <to> from <from>. |
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# Example: |
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# $ convert_abs_rel /usr/bin/test /bin/test-2 |
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# ../../bin/test-2 |
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# $ ln -s $(convert_abs_rel /usr/bin/test /bin/test-2) /usr/bin/test |
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convert_abs_rel() { |
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local __current __absolute __abssize __cursize __newpath |
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local -i __i __level |
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set -- "$(normalize_path "$1")" "$(normalize_path "$2")" |
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# corner case #1 - self looping link |
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[[ "$1" == "$2" ]] && { echo "${1##*/}"; return; } |
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# corner case #2 - own dir link |
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[[ "${1%/*}" == "$2" ]] && { echo "."; return; } |
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IFS="/" __current=($1) |
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IFS="/" __absolute=($2) |
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__abssize=${#__absolute[@]} |
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__cursize=${#__current[@]} |
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while [[ ${__absolute[__level]} == ${__current[__level]} ]] |
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do |
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(( __level++ )) |
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if (( __level > __abssize || __level > __cursize )) |
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then |
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break |
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fi |
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done |
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for ((__i = __level; __i < __cursize-1; __i++)) |
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do |
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if ((__i > __level)) |
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then |
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__newpath=$__newpath"/" |
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fi |
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__newpath=$__newpath".." |
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done |
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for ((__i = __level; __i < __abssize; __i++)) |
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do |
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if [[ -n $__newpath ]] |
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then |
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__newpath=$__newpath"/" |
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fi |
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__newpath=$__newpath${__absolute[__i]} |
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done |
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echo "$__newpath" |
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} |
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if strstr "$(ln --help)" "--relative"; then |
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ln_r() { |
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ln -sfnr "${initdir}/$1" "${initdir}/$2" |
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} |
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else |
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ln_r() { |
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local _source=$1 |
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local _dest=$2 |
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[[ -d "${_dest%/*}" ]] && _dest=$(readlink -f "${_dest%/*}")/${_dest##*/} |
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ln -sfn $(convert_abs_rel "${_dest}" "${_source}") "${initdir}/${_dest}" |
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} |
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fi |
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get_persistent_dev() { |
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local i _tmp _dev |
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_dev=$(udevadm info --query=name --name="$1" 2>/dev/null) |
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[ -z "$_dev" ] && return |
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for i in /dev/mapper/* /dev/disk/by-uuid/* /dev/disk/by-id/*; do |
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_tmp=$(udevadm info --query=name --name="$i" 2>/dev/null) |
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if [ "$_tmp" = "$_dev" ]; then |
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echo $i |
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return |
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fi |
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done |
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} |
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# get_fs_env <device> |
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# Get and set the ID_FS_TYPE and ID_FS_UUID variable from udev for a device. |
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# Example: |
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# $ get_fs_env /dev/sda2; echo $ID_FS_TYPE; echo $ID_FS_UUID |
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# ext4 |
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# 551a39aa-4ae9-4e70-a262-ef665cadb574 |
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get_fs_env() { |
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local evalstr |
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local found |
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[[ $1 ]] || return |
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unset ID_FS_TYPE |
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unset ID_FS_UUID |
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if evalstr=$(udevadm info --query=env --name=$1 \ |
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| { while read line; do |
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strstr "$line" "DEVPATH" && found=1; |
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strstr "$line" "ID_FS_TYPE=" && { echo $line; exit 0;} |
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done; [[ $found ]] && exit 0; exit 1; }) ; then |
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eval $evalstr |
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[[ $ID_FS_TYPE ]] && return 0 |
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return 1 |
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fi |
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# Fallback, if we don't have udev information |
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if find_binary blkid >/dev/null; then |
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eval $(blkid -o udev $1 \ |
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| while read line; do |
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strstr "$line" "ID_FS_TYPE=" && echo $line; |
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done) |
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[[ $ID_FS_TYPE ]] && return 0 |
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fi |
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return 1 |
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} |
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# get_maj_min <device> |
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# Prints the major and minor of a device node. |
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# Example: |
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# $ get_maj_min /dev/sda2 |
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# 8:2 |
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get_maj_min() { |
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local _dev |
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_dev=$(stat -L -c '$((0x%t)):$((0x%T))' "$1" 2>/dev/null) |
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_dev=$(eval "echo $_dev") |
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echo $_dev |
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} |
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# find_block_device <mountpoint> |
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# Prints the major and minor number of the block device |
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# for a given mountpoint. |
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# Unless $use_fstab is set to "yes" the functions |
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# uses /proc/self/mountinfo as the primary source of the |
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# information and only falls back to /etc/fstab, if the mountpoint |
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# is not found there. |
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# Example: |
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# $ find_block_device /usr |
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# 8:4 |
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find_block_device() { |
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local _x _mpt _majmin _dev _fs _maj _min _find_mpt |
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_find_mpt="$1" |
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if [[ $use_fstab != yes ]]; then |
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while read _x; do |
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set -- $_x |
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_majmin="$3" |
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_mpt="$5" |
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[[ $8 = "-" ]] && shift |
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_fs="$8" |
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_dev="$9" |
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[[ $_mpt = $_find_mpt ]] || continue |
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[[ $_fs = nfs ]] && { echo $_dev; return 0;} |
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[[ $_fs = nfs3 ]] && { echo $_dev; return 0;} |
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[[ $_fs = nfs4 ]] && { echo $_dev; return 0;} |
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[[ $_fs = btrfs ]] && { |
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get_maj_min $_dev |
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return 0; |
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} |
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if [[ ${_majmin#0:} = $_majmin ]]; then |
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echo $_majmin |
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return 0 # we have a winner! |
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fi |
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done < /proc/self/mountinfo |
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fi |
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# fall back to /etc/fstab |
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while read _dev _mpt _fs _x; do |
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[ "${_dev%%#*}" != "$_dev" ] && continue |
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|
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if [[ $_mpt = $_find_mpt ]]; then |
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[[ $_fs = nfs ]] && { echo $_dev; return 0;} |
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[[ $_fs = nfs3 ]] && { echo $_dev; return 0;} |
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[[ $_fs = nfs4 ]] && { echo $_dev; return 0;} |
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[[ $_dev != ${_dev#UUID=} ]] && _dev=/dev/disk/by-uuid/${_dev#UUID=} |
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[[ $_dev != ${_dev#LABEL=} ]] && _dev=/dev/disk/by-label/${_dev#LABEL=} |
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[[ -b $_dev ]] || return 1 # oops, not a block device. |
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get_maj_min "$_dev" && return 0 |
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fi |
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done < /etc/fstab |
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|
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return 1 |
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} |
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|
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# find_dev_fstype <device> |
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# Echo the filesystem type for a given device. |
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# /proc/self/mountinfo is taken as the primary source of information |
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# and /etc/fstab is used as a fallback. |
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# No newline is appended! |
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# Example: |
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# $ find_dev_fstype /dev/sda2;echo |
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# ext4 |
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find_dev_fstype() { |
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local _x _mpt _majmin _dev _fs _maj _min _find_dev |
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_find_dev="$1" |
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strstr "$_find_dev" "/dev" || _find_dev="/dev/block/$_find_dev" |
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while read _x; do |
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set -- $_x |
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_majmin="$3" |
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_mpt="$5" |
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[[ $8 = "-" ]] && shift |
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_fs="$8" |
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_dev="$9" |
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strstr "$_dev" "/dev" || continue |
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[[ $_dev -ef $_find_dev ]] || continue |
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[[ $_fs = "autofs" ]] && continue |
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echo -n $_fs; |
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return 0; |
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done < /proc/self/mountinfo |
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|
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# fall back to /etc/fstab |
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while read _dev _mpt _fs _x; do |
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[ "${_dev%%#*}" != "$_dev" ] && continue |
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case "$_dev" in |
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LABEL=*) |
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_dev="$(echo $_dev | sed 's,/,\\x2f,g')" |
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_dev="/dev/disk/by-label/${_dev#LABEL=}" |
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;; |
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UUID=*) |
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_dev="/dev/disk/by-uuid/${_dev#UUID=}" |
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;; |
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PARTUUID=*) |
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_dev="/dev/disk/by-partuuid/${_dev#PARTUUID=}" |
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;; |
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esac |
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[[ $_dev -ef $_find_dev ]] || continue |
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echo -n $_fs; |
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return 0; |
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done < /etc/fstab |
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return 1 |
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} |
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# find_mp_fstype <mountpoint> |
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# Echo the filesystem type for a given mountpoint. |
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# /proc/self/mountinfo is taken as the primary source of information |
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# and /etc/fstab is used as a fallback. |
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# No newline is appended! |
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# Example: |
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# $ find_mp_fstype /;echo |
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# ext4 |
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find_mp_fstype() { |
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local _x _mpt _majmin _dev _fs _maj _min _find_mpt |
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_find_mpt="$1" |
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while read _x; do |
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set -- $_x |
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_majmin="$3" |
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_mpt="$5" |
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[[ $8 = "-" ]] && shift |
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_fs="$8" |
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_dev="$9" |
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[[ $_mpt = $_find_mpt ]] || continue |
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[[ $_fs = "autofs" ]] && continue |
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echo -n $_fs; |
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return 0; |
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done < /proc/self/mountinfo |
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|
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# fall back to /etc/fstab |
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while read _dev _mpt _fs _x; do |
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[ "${_dev%%#*}" != "$_dev" ] && continue |
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[[ $_mpt = $_find_mpt ]] || continue |
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echo -n $_fs; |
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return 0; |
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done < /etc/fstab |
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|
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return 1 |
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} |
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|
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# finds the major:minor of the block device backing the root filesystem. |
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find_root_block_device() { find_block_device /; } |
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|
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# for_each_host_dev_fs <func> |
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# Execute "<func> <dev> <filesystem>" for every "<dev> <fs>" pair found |
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# in ${host_fs_types[@]} |
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for_each_host_dev_fs() |
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{ |
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local _func="$1" |
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local _dev |
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local _ret=1 |
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|
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[[ "${!host_fs_types[@]}" ]] || return 0 |
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|
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for _dev in "${!host_fs_types[@]}"; do |
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$_func "$_dev" "${host_fs_types[$_dev]}" && _ret=0 |
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done |
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return $_ret |
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} |
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|
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host_fs_all() |
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{ |
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echo "${host_fs_types[@]}" |
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} |
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|
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# Walk all the slave relationships for a given block device. |
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# Stop when our helper function returns success |
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# $1 = function to call on every found block device |
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# $2 = block device in major:minor format |
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check_block_and_slaves() { |
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local _x |
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[[ -b /dev/block/$2 ]] || return 1 # Not a block device? So sorry. |
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"$1" $2 && return |
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check_vol_slaves "$@" && return 0 |
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if [[ -f /sys/dev/block/$2/../dev ]]; then |
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check_block_and_slaves $1 $(cat "/sys/dev/block/$2/../dev") && return 0 |
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fi |
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[[ -d /sys/dev/block/$2/slaves ]] || return 1 |
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for _x in /sys/dev/block/$2/slaves/*/dev; do |
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[[ -f $_x ]] || continue |
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check_block_and_slaves $1 $(cat "$_x") && return 0 |
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done |
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return 1 |
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} |
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|
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check_block_and_slaves_all() { |
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local _x _ret=1 |
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[[ -b /dev/block/$2 ]] || return 1 # Not a block device? So sorry. |
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if "$1" $2; then |
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_ret=0 |
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fi |
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check_vol_slaves "$@" && return 0 |
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if [[ -f /sys/dev/block/$2/../dev ]]; then |
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check_block_and_slaves_all $1 $(cat "/sys/dev/block/$2/../dev") && _ret=0 |
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fi |
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[[ -d /sys/dev/block/$2/slaves ]] || return 1 |
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for _x in /sys/dev/block/$2/slaves/*/dev; do |
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[[ -f $_x ]] || continue |
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check_block_and_slaves_all $1 $(cat "$_x") && _ret=0 |
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done |
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return $_ret |
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} |
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# for_each_host_dev_and_slaves <func> |
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# Execute "<func> <dev>" for every "<dev>" found |
|
# in ${host_devs[@]} and their slaves |
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for_each_host_dev_and_slaves_all() |
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{ |
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local _func="$1" |
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local _dev |
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local _ret=1 |
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|
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[[ "${host_devs[@]}" ]] || return 0 |
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|
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for _dev in ${host_devs[@]}; do |
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[[ -b "$_dev" ]] || continue |
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if check_block_and_slaves_all $_func $(get_maj_min $_dev); then |
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_ret=0 |
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fi |
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done |
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return $_ret |
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} |
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|
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for_each_host_dev_and_slaves() |
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{ |
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local _func="$1" |
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local _dev |
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|
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[[ "${host_devs[@]}" ]] || return 0 |
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|
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for _dev in ${host_devs[@]}; do |
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[[ -b "$_dev" ]] || continue |
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check_block_and_slaves $_func $(get_maj_min $_dev) && return 0 |
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done |
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return 1 |
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} |
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|
|
# ugly workaround for the lvm design |
|
# There is no volume group device, |
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# so, there are no slave devices for volume groups. |
|
# Logical volumes only have the slave devices they really live on, |
|
# but you cannot create the logical volume without the volume group. |
|
# And the volume group might be bigger than the devices the LV needs. |
|
check_vol_slaves() { |
|
local _lv _vg _pv |
|
for i in /dev/mapper/*; do |
|
_lv=$(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/*} |
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[[ -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} $_mpargs |
|
((_ret+=$?)) |
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else |
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[[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && \ |
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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 $_mod" |
|
return 1 |
|
fi |
|
} |
|
done |
|
fi |
|
while (($# > 0)); do # filenames as arguments |
|
inst1mod ${1%.ko*} || { |
|
if [[ "$_check" == "yes" ]]; then |
|
[[ "$_silent" == "no" ]] && dfatal "Failed to install $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 |
|
}
|
|
|