dracut-functions.sh

   1 #!/bin/bash
   2 # -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
   3 # ex: ts=8 sw=4 sts=4 et filetype=sh
   4 #
   5 # functions used by dracut and other tools.
   6 #
   7 # Copyright 2005-2009 Red Hat, Inc.  All rights reserved.
   8 #
   9 # This program is free software; you can redistribute it and/or modify
  10 # it under the terms of the GNU General Public License as published by
  11 # the Free Software Foundation; either version 2 of the License, or
  12 # (at your option) any later version.
  13 #
  14 # This program is distributed in the hope that it will be useful,
  15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 # GNU General Public License for more details.
  18 #
  19 # You should have received a copy of the GNU General Public License
  20 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 #
  22 export LC_MESSAGES=C
  23
  24 if [[ $DRACUT_KERNEL_LAZY ]] && ! [[ $DRACUT_KERNEL_LAZY_HASHDIR ]]; then
  25     if ! [[ -d "$initdir/.kernelmodseen" ]]; then
  26         mkdir -p "$initdir/.kernelmodseen"
  27     fi
  28     DRACUT_KERNEL_LAZY_HASHDIR="$initdir/.kernelmodseen"
  29 fi
  30
  31 if [[ $initdir ]] && ! [[ -d $initdir ]]; then
  32     mkdir -p "$initdir"
  33 fi
  34
  35 # Generic substring function.  If $2 is in $1, return 0.
  36 strstr() { [[ $1 = *$2* ]]; }
  37
  38 # find a binary.  If we were not passed the full path directly,
  39 # search in the usual places to find the binary.
  40 find_binary() {
  41     if [[ -z ${1##/*} ]]; then
  42         if [[ -x $1 ]] || { [[ "$1" == *.so* ]] && ldd "$1" &>/dev/null; };  then
  43             printf "%s\n" "$1"
  44             return 0
  45         fi
  46     fi
  47
  48     type -P "${1##*/}"
  49 }
  50
  51 if ! [[ $dracutbasedir ]]; then
  52     dracutbasedir=${BASH_SOURCE[0]%/*}
  53     [[ $dracutbasedir = "dracut-functions" ]] && dracutbasedir="."
  54     [[ $dracutbasedir ]] || dracutbasedir="."
  55     dracutbasedir="$(readlink -f $dracutbasedir)"
  56 fi
  57
  58 ldconfig_paths()
  59 {
  60     local a i
  61     declare -A a
  62     for i in $(
  63         ldconfig -pN 2>/dev/null | while read a b c d; do
  64             [[ "$c" != "=>" ]] && continue
  65             echo ${d%/*};
  66         done
  67     ); do
  68         a["$i"]=1;
  69     done;
  70     printf "%s\n" ${!a[@]}
  71 }
  72
  73 # Detect lib paths
  74 if ! [[ $libdirs ]] ; then
  75     if [[ "$(ldd /bin/sh)" == */lib64/* ]] &>/dev/null \
  76         && [[ -d /lib64 ]]; then
  77         libdirs+=" /lib64"
  78         [[ -d /usr/lib64 ]] && libdirs+=" /usr/lib64"
  79     else
  80         libdirs+=" /lib"
  81         [[ -d /usr/lib ]] && libdirs+=" /usr/lib"
  82     fi
  83
  84     libdirs+="$(ldconfig_paths)"
  85
  86     export libdirs
  87 fi
  88
  89 if ! [[ $kernel ]]; then
  90     kernel=$(uname -r)
  91     export kernel
  92 fi
  93
  94 # Version comparision function.  Assumes Linux style version scheme.
  95 # $1 = version a
  96 # $2 = comparision op (gt, ge, eq, le, lt, ne)
  97 # $3 = version b
  98 vercmp() {
  99     local _n1=(${1//./ }) _op=$2 _n2=(${3//./ }) _i _res
 100
 101     for ((_i=0; ; _i++))
 102     do
 103         if [[ ! ${_n1[_i]}${_n2[_i]} ]]; then _res=0
 104         elif ((${_n1[_i]:-0} > ${_n2[_i]:-0})); then _res=1
 105         elif ((${_n1[_i]:-0} < ${_n2[_i]:-0})); then _res=2
 106         else continue
 107         fi
 108         break
 109     done
 110
 111     case $_op in
 112         gt) ((_res == 1));;
 113         ge) ((_res != 2));;
 114         eq) ((_res == 0));;
 115         le) ((_res != 1));;
 116         lt) ((_res == 2));;
 117         ne) ((_res != 0));;
 118     esac
 119 }
 120
 121 srcmods="/lib/modules/$kernel/"
 122
 123 [[ $drivers_dir ]] && {
 124     if ! command -v kmod &>/dev/null && vercmp "$(modprobe --version | cut -d' ' -f3)" lt 3.7; then
 125         dfatal 'To use --kmoddir option module-init-tools >= 3.7 is required.'
 126         exit 1
 127     fi
 128     srcmods="$drivers_dir"
 129 }
 130 export srcmods
 131
 132 if ! type dinfo >/dev/null 2>&1; then
 133     . "$dracutbasedir/dracut-logger.sh"
 134     dlog_init
 135 fi
 136
 137 if ! [[ $initdir ]]; then
 138     dfatal "initdir not set"
 139     exit 1
 140 fi
 141
 142 # export standard hookdirs
 143 [[ $hookdirs ]] || {
 144     hookdirs="cmdline pre-udev pre-trigger netroot "
 145     hookdirs+="initqueue initqueue/settled initqueue/online initqueue/finished initqueue/timeout "
 146     hookdirs+="pre-mount pre-pivot cleanup mount "
 147     hookdirs+="emergency shutdown-emergency pre-shutdown shutdown "
 148     export hookdirs
 149 }
 150
 151 dracut_need_initqueue() {
 152     >"$initdir/lib/dracut/need-initqueue"
 153 }
 154
 155 dracut_module_included() {
 156     [[ "$mods_to_load $modules_loaded" == *$@* ]]
 157 }
 158
 159 # Create all subdirectories for given path without creating the last element.
 160 # $1 = path
 161 mksubdirs() {
 162     [[ -e ${1%/*} ]] || mkdir -m 0755 -p -- "${1%/*}"
 163 }
 164
 165 # is_func <command>
 166 # Check whether $1 is a function.
 167 is_func() {
 168     [[ "$(type -t "$1")" = "function" ]]
 169 }
 170
 171 # Function prints global variables in format name=value line by line.
 172 # $@ = list of global variables' name
 173 print_vars() {
 174     local _var _value
 175
 176     for _var in "$@"
 177     do
 178         eval printf -v _value "%s" "\$$_var"
 179         [[ ${_value} ]] && printf '%s="%s"\n' "$_var" "$_value"
 180     done
 181 }
 182
 183 # normalize_path <path>
 184 # Prints the normalized path, where it removes any duplicated
 185 # and trailing slashes.
 186 # Example:
 187 # $ normalize_path ///test/test//
 188 # /test/test
 189 normalize_path() {
 190     shopt -q -s extglob
 191     set -- "${1//+(\/)//}"
 192     shopt -q -u extglob
 193     echo "${1%/}"
 194 }
 195
 196 # convert_abs_rel <from> <to>
 197 # Prints the relative path, when creating a symlink to <to> from <from>.
 198 # Example:
 199 # $ convert_abs_rel /usr/bin/test /bin/test-2
 200 # ../../bin/test-2
 201 # $ ln -s $(convert_abs_rel /usr/bin/test /bin/test-2) /usr/bin/test
 202 convert_abs_rel() {
 203     local __current __absolute __abssize __cursize __newpath
 204     local -i __i __level
 205
 206     set -- "$(normalize_path "$1")" "$(normalize_path "$2")"
 207
 208     # corner case #1 - self looping link
 209     [[ "$1" == "$2" ]] && { echo "${1##*/}"; return; }
 210
 211     # corner case #2 - own dir link
 212     [[ "${1%/*}" == "$2" ]] && { echo "."; return; }
 213
 214     IFS="/" __current=($1)
 215     IFS="/" __absolute=($2)
 216
 217     __abssize=${#__absolute[@]}
 218     __cursize=${#__current[@]}
 219
 220     while [[ "${__absolute[__level]}" == "${__current[__level]}" ]]
 221     do
 222         (( __level++ ))
 223         if (( __level > __abssize || __level > __cursize ))
 224         then
 225             break
 226         fi
 227     done
 228
 229     for ((__i = __level; __i < __cursize-1; __i++))
 230     do
 231         if ((__i > __level))
 232         then
 233             __newpath=$__newpath"/"
 234         fi
 235         __newpath=$__newpath".."
 236     done
 237
 238     for ((__i = __level; __i < __abssize; __i++))
 239     do
 240         if [[ -n $__newpath ]]
 241         then
 242             __newpath=$__newpath"/"
 243         fi
 244         __newpath=$__newpath${__absolute[__i]}
 245     done
 246
 247     echo "$__newpath"
 248 }
 249
 250 if [[ "$(ln --help)" == *--relative* ]]; then
 251     ln_r() {
 252         ln -sfnr "${initdir}/$1" "${initdir}/$2"
 253     }
 254 else
 255     ln_r() {
 256         local _source=$1
 257         local _dest=$2
 258         [[ -d "${_dest%/*}" ]] && _dest=$(readlink -f "${_dest%/*}")/${_dest##*/}
 259         ln -sfn -- "$(convert_abs_rel "${_dest}" "${_source}")" "${initdir}/${_dest}"
 260     }
 261 fi
 262
 263 # get_fs_env <device>
 264 # Get and set the ID_FS_TYPE variable from udev for a device.
 265 # Example:
 266 # $ get_fs_env /dev/sda2; echo $ID_FS_TYPE
 267 # ext4
 268 get_fs_env() {
 269     local evalstr
 270     local found
 271
 272     [[ $1 ]] || return
 273     unset ID_FS_TYPE
 274     ID_FS_TYPE=$(blkid -u filesystem -o export -- "$1" \
 275         | while read line; do
 276             if [[ "$line" == TYPE\=* ]]; then
 277                 printf "%s" "${line#TYPE=}";
 278                 exit 0;
 279             fi
 280             done)
 281     if [[ $ID_FS_TYPE ]]; then
 282         printf "%s" "$ID_FS_TYPE"
 283         return 0
 284     fi
 285     return 1
 286 }
 287
 288 # get_maj_min <device>
 289 # Prints the major and minor of a device node.
 290 # Example:
 291 # $ get_maj_min /dev/sda2
 292 # 8:2
 293 get_maj_min() {
 294     local _maj _min _majmin
 295     _majmin="$(stat -L -c '%t:%T' "$1" 2>/dev/null)"
 296     printf "%s" "$((0x${_majmin%:*})):$((0x${_majmin#*:}))"
 297 }
 298
 299 # get a persistent path from a device
 300 get_persistent_dev() {
 301     local i _tmp _dev
 302
 303     _dev=$(get_maj_min "$1")
 304     [ -z "$_dev" ] && return
 305
 306     for i in /dev/mapper/* /dev/disk/by-uuid/* /dev/disk/by-id/*; do
 307         [[ $i == /dev/mapper/mpath* ]] && continue
 308         _tmp=$(get_maj_min "$i")
 309         if [ "$_tmp" = "$_dev" ]; then
 310             printf -- "%s" "$i"
 311             return
 312         fi
 313     done
 314 }
 315
 316 # find_block_device <mountpoint>
 317 # Prints the major and minor number of the block device
 318 # for a given mountpoint.
 319 # Unless $use_fstab is set to "yes" the functions
 320 # uses /proc/self/mountinfo as the primary source of the
 321 # information and only falls back to /etc/fstab, if the mountpoint
 322 # is not found there.
 323 # Example:
 324 # $ find_block_device /usr
 325 # 8:4
 326 find_block_device() {
 327     local _majmin _dev _majmin _find_mpt
 328     _find_mpt="$1"
 329     if [[ $use_fstab != yes ]]; then
 330         [[ -d $_find_mpt/. ]]
 331         findmnt -e -v -n -o 'MAJ:MIN,SOURCE' --target "$_find_mpt" | { \
 332             while read _majmin _dev; do
 333                 if [[ -b $_dev ]]; then
 334                     if ! [[ $_majmin ]] || [[ $_majmin == 0:* ]]; then
 335                         _majmin=$(get_maj_min $_dev)
 336                     fi
 337                     if [[ $_majmin ]]; then
 338                         echo $_majmin
 339                     else
 340                         echo $_dev
 341                     fi
 342                     return 0
 343                 fi
 344                 if [[ $_dev = *:* ]]; then
 345                     echo $_dev
 346                     return 0
 347                 fi
 348             done; return 1; } && return 0
 349     fi
 350     # fall back to /etc/fstab
 351
 352     findmnt -e --fstab -v -n -o 'MAJ:MIN,SOURCE' --target "$_find_mpt" | { \
 353         while read _majmin _dev; do
 354             if ! [[ $_dev ]]; then
 355                 _dev="$_majmin"
 356                 unset _majmin
 357             fi
 358             if [[ -b $_dev ]]; then
 359                 [[ $_majmin ]] || _majmin=$(get_maj_min $_dev)
 360                 if [[ $_majmin ]]; then
 361                     echo $_majmin
 362                 else
 363                     echo $_dev
 364                 fi
 365                 return 0
 366             fi
 367             if [[ $_dev = *:* ]]; then
 368                 echo $_dev
 369                 return 0
 370             fi
 371         done; return 1; } && return 0
 372
 373     return 1
 374 }
 375
 376 # find_mp_fstype <mountpoint>
 377 # Echo the filesystem type for a given mountpoint.
 378 # /proc/self/mountinfo is taken as the primary source of information
 379 # and /etc/fstab is used as a fallback.
 380 # No newline is appended!
 381 # Example:
 382 # $ find_mp_fstype /;echo
 383 # ext4
 384 find_mp_fstype() {
 385     local _fs
 386
 387     if [[ $use_fstab != yes ]]; then
 388         findmnt -e -v -n -o 'FSTYPE' --target "$1" | { \
 389             while read _fs; do
 390                 [[ $_fs ]] || continue
 391                 [[ $_fs = "autofs" ]] && continue
 392                 echo -n $_fs
 393                 return 0
 394             done; return 1; } && return 0
 395     fi
 396
 397     findmnt --fstab -e -v -n -o 'FSTYPE' --target "$1" | { \
 398         while read _fs; do
 399             [[ $_fs ]] || continue
 400             [[ $_fs = "autofs" ]] && continue
 401             echo -n $_fs
 402             return 0
 403         done; return 1; } && return 0
 404
 405     return 1
 406 }
 407
 408 # find_dev_fstype <device>
 409 # Echo the filesystem type for a given device.
 410 # /proc/self/mountinfo is taken as the primary source of information
 411 # and /etc/fstab is used as a fallback.
 412 # No newline is appended!
 413 # Example:
 414 # $ find_dev_fstype /dev/sda2;echo
 415 # ext4
 416 find_dev_fstype() {
 417     local _find_dev _fs
 418     _find_dev="$1"
 419     if ! [[ "$_find_dev" = /dev* ]]; then
 420         [[ -b "/dev/block/$_find_dev" ]] && _find_dev="/dev/block/$_find_dev"
 421     fi
 422
 423     if [[ $use_fstab != yes ]]; then
 424         findmnt -e -v -n -o 'FSTYPE' --source "$_find_dev" | { \
 425             while read _fs; do
 426                 [[ $_fs ]] || continue
 427                 [[ $_fs = "autofs" ]] && continue
 428                 echo -n $_fs
 429                 return 0
 430             done; return 1; } && return 0
 431     fi
 432
 433     findmnt --fstab -e -v -n -o 'FSTYPE' --source "$_find_dev" | { \
 434         while read _fs; do
 435             [[ $_fs ]] || continue
 436             [[ $_fs = "autofs" ]] && continue
 437             echo -n $_fs
 438             return 0
 439         done; return 1; } && return 0
 440
 441     return 1
 442
 443 }
 444
 445 # finds the major:minor of the block device backing the root filesystem.
 446 find_root_block_device() { find_block_device /; }
 447
 448 # for_each_host_dev_fs <func>
 449 # Execute "<func> <dev> <filesystem>" for every "<dev> <fs>" pair found
 450 # in ${host_fs_types[@]}
 451 for_each_host_dev_fs()
 452 {
 453     local _func="$1"
 454     local _dev
 455     local _ret=1
 456
 457     [[ "${!host_fs_types[@]}" ]] || return 0
 458
 459     for _dev in "${!host_fs_types[@]}"; do
 460         $_func "$_dev" "${host_fs_types[$_dev]}" && _ret=0
 461     done
 462     return $_ret
 463 }
 464
 465 host_fs_all()
 466 {
 467     echo "${host_fs_types[@]}"
 468 }
 469
 470 # Walk all the slave relationships for a given block device.
 471 # Stop when our helper function returns success
 472 # $1 = function to call on every found block device
 473 # $2 = block device in major:minor format
 474 check_block_and_slaves() {
 475     local _x
 476     [[ -b /dev/block/$2 ]] || return 1 # Not a block device? So sorry.
 477     "$1" $2 && return
 478     check_vol_slaves "$@" && return 0
 479     if [[ -f /sys/dev/block/$2/../dev ]]; then
 480         check_block_and_slaves $1 $(<"/sys/dev/block/$2/../dev") && return 0
 481     fi
 482     [[ -d /sys/dev/block/$2/slaves ]] || return 1
 483     for _x in /sys/dev/block/$2/slaves/*/dev; do
 484         [[ -f $_x ]] || continue
 485         check_block_and_slaves $1 $(<"$_x") && return 0
 486     done
 487     return 1
 488 }
 489
 490 check_block_and_slaves_all() {
 491     local _x _ret=1
 492     [[ -b /dev/block/$2 ]] || return 1 # Not a block device? So sorry.
 493     if "$1" $2; then
 494         _ret=0
 495     fi
 496     check_vol_slaves "$@" && return 0
 497     if [[ -f /sys/dev/block/$2/../dev ]]; then
 498         check_block_and_slaves_all $1 $(<"/sys/dev/block/$2/../dev") && _ret=0
 499     fi
 500     [[ -d /sys/dev/block/$2/slaves ]] || return 1
 501     for _x in /sys/dev/block/$2/slaves/*/dev; do
 502         [[ -f $_x ]] || continue
 503         check_block_and_slaves_all $1 $(<"$_x") && _ret=0
 504     done
 505     return $_ret
 506 }
 507 # for_each_host_dev_and_slaves <func>
 508 # Execute "<func> <dev>" for every "<dev>" found
 509 # in ${host_devs[@]} and their slaves
 510 for_each_host_dev_and_slaves_all()
 511 {
 512     local _func="$1"
 513     local _dev
 514     local _ret=1
 515
 516     [[ "${host_devs[@]}" ]] || return 0
 517
 518     for _dev in ${host_devs[@]}; do
 519         [[ -b "$_dev" ]] || continue
 520         if check_block_and_slaves_all $_func $(get_maj_min $_dev); then
 521             _ret=0
 522         fi
 523     done
 524     return $_ret
 525 }
 526
 527 for_each_host_dev_and_slaves()
 528 {
 529     local _func="$1"
 530     local _dev
 531
 532     [[ "${host_devs[@]}" ]] || return 0
 533
 534     for _dev in ${host_devs[@]}; do
 535         [[ -b "$_dev" ]] || continue
 536         check_block_and_slaves $_func $(get_maj_min $_dev) && return 0
 537     done
 538     return 1
 539 }
 540
 541 # ugly workaround for the lvm design
 542 # There is no volume group device,
 543 # so, there are no slave devices for volume groups.
 544 # Logical volumes only have the slave devices they really live on,
 545 # but you cannot create the logical volume without the volume group.
 546 # And the volume group might be bigger than the devices the LV needs.
 547 check_vol_slaves() {
 548     local _lv _vg _pv
 549     for i in /dev/mapper/*; do
 550         _lv=$(get_maj_min $i)
 551         if [[ $_lv = $2 ]]; then
 552             _vg=$(lvm lvs --noheadings -o vg_name $i 2>/dev/null)
 553             # strip space
 554             _vg=$(echo $_vg)
 555             if [[ $_vg ]]; then
 556                 for _pv in $(lvm vgs --noheadings -o pv_name "$_vg" 2>/dev/null)
 557                 do
 558                     check_block_and_slaves $1 $(get_maj_min $_pv) && return 0
 559                 done
 560             fi
 561         fi
 562     done
 563     return 1
 564 }
 565
 566 # fs_get_option <filesystem options> <search for option>
 567 # search for a specific option in a bunch of filesystem options
 568 # and return the value
 569 fs_get_option() {
 570     local _fsopts=$1
 571     local _option=$2
 572     local OLDIFS="$IFS"
 573     IFS=,
 574     set -- $_fsopts
 575     IFS="$OLDIFS"
 576     while [ $# -gt 0 ]; do
 577         case $1 in
 578             $_option=*)
 579                 echo ${1#${_option}=}
 580                 break
 581         esac
 582         shift
 583     done
 584 }
 585
 586
 587 if ! [[ $DRACUT_INSTALL ]]; then
 588     DRACUT_INSTALL=$(find_binary dracut-install)
 589 fi
 590
 591 if ! [[ $DRACUT_INSTALL ]] && [[ -x $dracutbasedir/dracut-install ]]; then
 592     DRACUT_INSTALL=$dracutbasedir/dracut-install
 593 fi
 594
 595 if ! [[ -x $DRACUT_INSTALL ]]; then
 596     dfatal "dracut-install not found!"
 597     exit 10
 598 fi
 599
 600 [[ $DRACUT_RESOLVE_LAZY ]] || export DRACUT_RESOLVE_DEPS=1
 601 inst_dir() {
 602     [[ -e ${initdir}/"$1" ]] && return 0  # already there
 603     $DRACUT_INSTALL ${initdir+-D "$initdir"} -d "$@"
 604     (($? != 0)) && derror $DRACUT_INSTALL ${initdir+-D "$initdir"} -d "$@" || :
 605 }
 606
 607 inst() {
 608     [[ -e ${initdir}/"${2:-$1}" ]] && return 0  # already there
 609         #dinfo "$DRACUT_INSTALL -l $@"
 610     $DRACUT_INSTALL ${initdir+-D "$initdir"} ${DRACUT_RESOLVE_DEPS+-l} ${DRACUT_FIPS_MODE+-H} "$@"
 611     (($? != 0)) && derror $DRACUT_INSTALL ${initdir+-D "$initdir"} ${DRACUT_RESOLVE_DEPS+-l} ${DRACUT_FIPS_MODE+-H} "$@" || :
 612 }
 613
 614 inst_simple() {
 615     [[ -e ${initdir}/"${2:-$1}" ]] && return 0  # already there
 616     [[ -e $1 ]] || return 1  # no source
 617     $DRACUT_INSTALL ${initdir+-D "$initdir"} "$@"
 618     (($? != 0)) && derror $DRACUT_INSTALL ${initdir+-D "$initdir"} "$@" || :
 619 }
 620
 621 inst_symlink() {
 622     [[ -e ${initdir}/"${2:-$1}" ]] && return 0  # already there
 623     [[ -L $1 ]] || return 1
 624     $DRACUT_INSTALL ${initdir+-D "$initdir"} ${DRACUT_RESOLVE_DEPS+-l}  ${DRACUT_FIPS_MODE+-H} "$@"
 625     (($? != 0)) && derror $DRACUT_INSTALL ${initdir+-D "$initdir"} ${DRACUT_RESOLVE_DEPS+-l}  ${DRACUT_FIPS_MODE+-H} "$@" || :
 626 }
 627
 628 inst_multiple() {
 629     local ret
 630         #dinfo "initdir=$initdir $DRACUT_INSTALL -l $@"
 631     $DRACUT_INSTALL ${initdir+-D "$initdir"} -a ${DRACUT_RESOLVE_DEPS+-l}  ${DRACUT_FIPS_MODE+-H} "$@"
 632     ret=$?
 633     (($ret != 0)) && derror $DRACUT_INSTALL ${initdir+-D "$initdir"} -a ${DRACUT_RESOLVE_DEPS+-l}  ${DRACUT_FIPS_MODE+-H} "$@" || :
 634     return $ret
 635 }
 636
 637 dracut_install() {
 638     inst_multiple "$@"
 639 }
 640
 641 inst_library() {
 642     [[ -e ${initdir}/"${2:-$1}" ]] && return 0  # already there
 643     [[ -e $1 ]] || return 1  # no source
 644     $DRACUT_INSTALL ${initdir+-D "$initdir"} ${DRACUT_RESOLVE_DEPS+-l}  ${DRACUT_FIPS_MODE+-H} "$@"
 645     (($? != 0)) && derror $DRACUT_INSTALL ${initdir+-D "$initdir"} ${DRACUT_RESOLVE_DEPS+-l}  ${DRACUT_FIPS_MODE+-H} "$@" || :
 646 }
 647
 648 inst_binary() {
 649     $DRACUT_INSTALL ${initdir+-D "$initdir"} ${DRACUT_RESOLVE_DEPS+-l}  ${DRACUT_FIPS_MODE+-H} "$@"
 650     (($? != 0)) && derror $DRACUT_INSTALL ${initdir+-D "$initdir"} ${DRACUT_RESOLVE_DEPS+-l}  ${DRACUT_FIPS_MODE+-H} "$@" || :
 651 }
 652
 653 inst_script() {
 654     $DRACUT_INSTALL ${initdir+-D "$initdir"} ${DRACUT_RESOLVE_DEPS+-l}  ${DRACUT_FIPS_MODE+-H} "$@"
 655     (($? != 0)) && derror $DRACUT_INSTALL ${initdir+-D "$initdir"} ${DRACUT_RESOLVE_DEPS+-l}  ${DRACUT_FIPS_MODE+-H} "$@" || :
 656 }
 657
 658 # find symlinks linked to given library file
 659 # $1 = library file
 660 # Function searches for symlinks by stripping version numbers appended to
 661 # library filename, checks if it points to the same target and finally
 662 # prints the list of symlinks to stdout.
 663 #
 664 # Example:
 665 # rev_lib_symlinks libfoo.so.8.1
 666 # output: libfoo.so.8 libfoo.so
 667 # (Only if libfoo.so.8 and libfoo.so exists on host system.)
 668 rev_lib_symlinks() {
 669     [[ ! $1 ]] && return 0
 670
 671     local fn="$1" orig="$(readlink -f "$1")" links=''
 672
 673     [[ ${fn} == *.so.* ]] || return 1
 674
 675     until [[ ${fn##*.} == so ]]; do
 676         fn="${fn%.*}"
 677         [[ -L ${fn} && $(readlink -f "${fn}") == ${orig} ]] && links+=" ${fn}"
 678     done
 679
 680     echo "${links}"
 681 }
 682
 683 # attempt to install any programs specified in a udev rule
 684 inst_rule_programs() {
 685     local _prog _bin
 686
 687     if grep -qE 'PROGRAM==?"[^ "]+' "$1"; then
 688         for _prog in $(grep -E 'PROGRAM==?"[^ "]+' "$1" | sed -r 's/.*PROGRAM==?"([^ "]+).*/\1/'); do
 689             _bin=""
 690             if [ -x ${udevdir}/$_prog ]; then
 691                 _bin=${udevdir}/$_prog
 692             elif [[ "${_prog/\$env\{/}" == "$_prog" ]]; then
 693                 _bin=$(find_binary "$_prog") || {
 694                     dinfo "Skipping program $_prog using in udev rule ${1##*/} as it cannot be found"
 695                     continue;
 696                 }
 697             fi
 698
 699             [[ $_bin ]] && inst_binary "$_bin"
 700         done
 701     fi
 702     if grep -qE 'RUN[+=]=?"[^ "]+' "$1"; then
 703         for _prog in $(grep -E 'RUN[+=]=?"[^ "]+' "$1" | sed -r 's/.*RUN[+=]=?"([^ "]+).*/\1/'); do
 704             _bin=""
 705             if [ -x ${udevdir}/$_prog ]; then
 706                 _bin=${udevdir}/$_prog
 707             elif [[ "${_prog/\$env\{/}" == "$_prog" ]] && [[ "${_prog}" != "/sbin/initqueue" ]]; then
 708                 _bin=$(find_binary "$_prog") || {
 709                     dinfo "Skipping program $_prog using in udev rule ${1##*/} as it cannot be found"
 710                     continue;
 711                 }
 712             fi
 713
 714             [[ $_bin ]] && inst_binary "$_bin"
 715         done
 716     fi
 717     if grep -qE 'IMPORT\{program\}==?"[^ "]+' "$1"; then
 718         for _prog in $(grep -E 'IMPORT\{program\}==?"[^ "]+' "$1" | sed -r 's/.*IMPORT\{program\}==?"([^ "]+).*/\1/'); do
 719             _bin=""
 720             if [ -x ${udevdir}/$_prog ]; then
 721                 _bin=${udevdir}/$_prog
 722             elif [[ "${_prog/\$env\{/}" == "$_prog" ]]; then
 723                 _bin=$(find_binary "$_prog") || {
 724                     dinfo "Skipping program $_prog using in udev rule ${1##*/} as it cannot be found"
 725                     continue;
 726                 }
 727             fi
 728
 729             [[ $_bin ]] && dracut_install "$_bin"
 730         done
 731     fi
 732 }
 733
 734 # attempt to install any programs specified in a udev rule
 735 inst_rule_group_owner() {
 736     local i
 737
 738     if grep -qE 'OWNER=?"[^ "]+' "$1"; then
 739         for i in $(grep -E 'OWNER=?"[^ "]+' "$1" | sed -r 's/.*OWNER=?"([^ "]+).*/\1/'); do
 740             if ! egrep -q "^$i:" "$initdir/etc/passwd" 2>/dev/null; then
 741                 egrep "^$i:" /etc/passwd 2>/dev/null >> "$initdir/etc/passwd"
 742             fi
 743         done
 744     fi
 745     if grep -qE 'GROUP=?"[^ "]+' "$1"; then
 746         for i in $(grep -E 'GROUP=?"[^ "]+' "$1" | sed -r 's/.*GROUP=?"([^ "]+).*/\1/'); do
 747             if ! egrep -q "^$i:" "$initdir/etc/group" 2>/dev/null; then
 748                 egrep "^$i:" /etc/group 2>/dev/null >> "$initdir/etc/group"
 749             fi
 750         done
 751     fi
 752 }
 753
 754 inst_rule_initqueue() {
 755     if grep -q -F initqueue "$1"; then
 756         dracut_need_initqueue
 757     fi
 758 }
 759
 760 # udev rules always get installed in the same place, so
 761 # create a function to install them to make life simpler.
 762 inst_rules() {
 763     local _target=/etc/udev/rules.d _rule _found
 764
 765     inst_dir "${udevdir}/rules.d"
 766     inst_dir "$_target"
 767     for _rule in "$@"; do
 768         if [ "${_rule#/}" = "$_rule" ]; then
 769             for r in ${udevdir}/rules.d /etc/udev/rules.d; do
 770                 if [[ -f $r/$_rule ]]; then
 771                     _found="$r/$_rule"
 772                     inst_rule_programs "$_found"
 773                     inst_rule_group_owner "$_found"
 774                     inst_rule_initqueue "$_found"
 775                     inst_simple "$_found"
 776                 fi
 777             done
 778         fi
 779         for r in '' ./ $dracutbasedir/rules.d/; do
 780             if [[ -f ${r}$_rule ]]; then
 781                 _found="${r}$_rule"
 782                 inst_rule_programs "$_found"
 783                 inst_rule_group_owner "$_found"
 784                 inst_rule_initqueue "$_found"
 785                 inst_simple "$_found" "$_target/${_found##*/}"
 786             fi
 787         done
 788         [[ $_found ]] || dinfo "Skipping udev rule: $_rule"
 789     done
 790 }
 791
 792 prepare_udev_rules() {
 793     [ -z "$UDEVVERSION" ] && export UDEVVERSION=$(udevadm --version)
 794
 795     for f in "$@"; do
 796         f="${initdir}/etc/udev/rules.d/$f"
 797         [ -e "$f" ] || continue
 798         while read line; do
 799             if [ "${line%%IMPORT PATH_ID}" != "$line" ]; then
 800                 if [ $UDEVVERSION -ge 174 ]; then
 801                     printf '%sIMPORT{builtin}="path_id"\n' "${line%%IMPORT PATH_ID}"
 802                 else
 803                     printf '%sIMPORT{program}="path_id %%p"\n' "${line%%IMPORT PATH_ID}"
 804                 fi
 805             elif [ "${line%%IMPORT BLKID}" != "$line" ]; then
 806                 if [ $UDEVVERSION -ge 176 ]; then
 807                     printf '%sIMPORT{builtin}="blkid"\n' "${line%%IMPORT BLKID}"
 808                 else
 809                     printf '%sIMPORT{program}="/sbin/blkid -o udev -p $tempnode"\n' "${line%%IMPORT BLKID}"
 810                 fi
 811             else
 812                 echo "$line"
 813             fi
 814         done < "${f}" > "${f}.new"
 815         mv "${f}.new" "$f"
 816     done
 817 }
 818
 819 # install function specialized for hooks
 820 # $1 = type of hook, $2 = hook priority (lower runs first), $3 = hook
 821 # All hooks should be POSIX/SuS compliant, they will be sourced by init.
 822 inst_hook() {
 823     if ! [[ -f $3 ]]; then
 824         dfatal "Cannot install a hook ($3) that does not exist."
 825         dfatal "Aborting initrd creation."
 826         exit 1
 827     elif ! [[ "$hookdirs" == *$1* ]]; then
 828         dfatal "No such hook type $1. Aborting initrd creation."
 829         exit 1
 830     fi
 831     inst_simple "$3" "/lib/dracut/hooks/${1}/${2}-${3##*/}"
 832 }
 833
 834 # install any of listed files
 835 #
 836 # If first argument is '-d' and second some destination path, first accessible
 837 # source is installed into this path, otherwise it will installed in the same
 838 # path as source.  If none of listed files was installed, function return 1.
 839 # On first successful installation it returns with 0 status.
 840 #
 841 # Example:
 842 #
 843 # inst_any -d /bin/foo /bin/bar /bin/baz
 844 #
 845 # Lets assume that /bin/baz exists, so it will be installed as /bin/foo in
 846 # initramfs.
 847 inst_any() {
 848     local to f
 849
 850     [[ $1 = '-d' ]] && to="$2" && shift 2
 851
 852     for f in "$@"; do
 853         if [[ -e $f ]]; then
 854             [[ $to ]] && inst "$f" "$to" && return 0
 855             inst "$f" && return 0
 856         fi
 857     done
 858
 859     return 1
 860 }
 861
 862
 863 # inst_libdir_file [-n <pattern>] <file> [<file>...]
 864 # Install a <file> located on a lib directory to the initramfs image
 865 # -n <pattern> install matching files
 866 inst_libdir_file() {
 867     local _files
 868     if [[ "$1" == "-n" ]]; then
 869         local _pattern=$2
 870         shift 2
 871         for _dir in $libdirs; do
 872             for _i in "$@"; do
 873                 for _f in "$_dir"/$_i; do
 874                     [[ "$_f" =~ $_pattern ]] || continue
 875                     [[ -e "$_f" ]] && _files+="$_f "
 876                 done
 877             done
 878         done
 879     else
 880         for _dir in $libdirs; do
 881             for _i in "$@"; do
 882                 for _f in "$_dir"/$_i; do
 883                     [[ -e "$_f" ]] && _files+="$_f "
 884                 done
 885             done
 886         done
 887     fi
 888     [[ $_files ]] && inst_multiple $_files
 889 }
 890
 891
 892 # install function decompressing the target and handling symlinks
 893 # $@ = list of compressed (gz or bz2) files or symlinks pointing to such files
 894 #
 895 # Function install targets in the same paths inside overlay but decompressed
 896 # and without extensions (.gz, .bz2).
 897 inst_decompress() {
 898     local _src _cmd
 899
 900     for _src in $@
 901     do
 902         case ${_src} in
 903             *.gz) _cmd='gzip -f -d' ;;
 904             *.bz2) _cmd='bzip2 -d' ;;
 905             *) return 1 ;;
 906         esac
 907         inst_simple ${_src}
 908         # Decompress with chosen tool.  We assume that tool changes name e.g.
 909         # from 'name.gz' to 'name'.
 910         ${_cmd} "${initdir}${_src}"
 911     done
 912 }
 913
 914 # It's similar to above, but if file is not compressed, performs standard
 915 # install.
 916 # $@ = list of files
 917 inst_opt_decompress() {
 918     local _src
 919
 920     for _src in $@
 921     do
 922         inst_decompress "${_src}" || inst "${_src}"
 923     done
 924 }
 925
 926 # module_check <dracut module>
 927 # execute the check() function of module-setup.sh of <dracut module>
 928 # or the "check" script, if module-setup.sh is not found
 929 # "check $hostonly" is called
 930 module_check() {
 931     local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
 932     local _ret
 933     local _forced=0
 934     local _hostonly=$hostonly
 935     [ $# -eq 2 ] && _forced=$2
 936     [[ -d $_moddir ]] || return 1
 937     if [[ ! -f $_moddir/module-setup.sh ]]; then
 938         # if we do not have a check script, we are unconditionally included
 939         [[ -x $_moddir/check ]] || return 0
 940         [ $_forced -ne 0 ] && unset hostonly
 941         $_moddir/check $hostonly
 942         _ret=$?
 943     else
 944         unset check depends install installkernel
 945         check() { true; }
 946         . $_moddir/module-setup.sh
 947         is_func check || return 0
 948         [ $_forced -ne 0 ] && unset hostonly
 949         check $hostonly
 950         _ret=$?
 951         unset check depends install installkernel
 952     fi
 953     hostonly=$_hostonly
 954     return $_ret
 955 }
 956
 957 # module_check_mount <dracut module>
 958 # execute the check() function of module-setup.sh of <dracut module>
 959 # or the "check" script, if module-setup.sh is not found
 960 # "mount_needs=1 check 0" is called
 961 module_check_mount() {
 962     local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
 963     local _ret
 964     mount_needs=1
 965     [[ -d $_moddir ]] || return 1
 966     if [[ ! -f $_moddir/module-setup.sh ]]; then
 967         # if we do not have a check script, we are unconditionally included
 968         [[ -x $_moddir/check ]] || return 0
 969         mount_needs=1 $_moddir/check 0
 970         _ret=$?
 971     else
 972         unset check depends install installkernel
 973         check() { false; }
 974         . $_moddir/module-setup.sh
 975         check 0
 976         _ret=$?
 977         unset check depends install installkernel
 978     fi
 979     unset mount_needs
 980     return $_ret
 981 }
 982
 983 # module_depends <dracut module>
 984 # execute the depends() function of module-setup.sh of <dracut module>
 985 # or the "depends" script, if module-setup.sh is not found
 986 module_depends() {
 987     local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
 988     local _ret
 989     [[ -d $_moddir ]] || return 1
 990     if [[ ! -f $_moddir/module-setup.sh ]]; then
 991         # if we do not have a check script, we have no deps
 992         [[ -x $_moddir/check ]] || return 0
 993         $_moddir/check -d
 994         return $?
 995     else
 996         unset check depends install installkernel
 997         depends() { true; }
 998         . $_moddir/module-setup.sh
 999         depends
1000         _ret=$?
1001         unset check depends install installkernel
1002         return $_ret
1003     fi
1004 }
1005
1006 # module_install <dracut module>
1007 # execute the install() function of module-setup.sh of <dracut module>
1008 # or the "install" script, if module-setup.sh is not found
1009 module_install() {
1010     local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
1011     local _ret
1012     [[ -d $_moddir ]] || return 1
1013     if [[ ! -f $_moddir/module-setup.sh ]]; then
1014         [[ -x $_moddir/install ]] && . "$_moddir/install"
1015         return $?
1016     else
1017         unset check depends install installkernel
1018         install() { true; }
1019         . $_moddir/module-setup.sh
1020         install
1021         _ret=$?
1022         unset check depends install installkernel
1023         return $_ret
1024     fi
1025 }
1026
1027 # module_installkernel <dracut module>
1028 # execute the installkernel() function of module-setup.sh of <dracut module>
1029 # or the "installkernel" script, if module-setup.sh is not found
1030 module_installkernel() {
1031     local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
1032     local _ret
1033     [[ -d $_moddir ]] || return 1
1034     if [[ ! -f $_moddir/module-setup.sh ]]; then
1035         [[ -x $_moddir/installkernel ]] && . "$_moddir/installkernel"
1036         return $?
1037     else
1038         unset check depends install installkernel
1039         installkernel() { true; }
1040         . $_moddir/module-setup.sh
1041         installkernel
1042         _ret=$?
1043         unset check depends install installkernel
1044         return $_ret
1045     fi
1046 }
1047
1048 # check_mount <dracut module>
1049 # check_mount checks, if a dracut module is needed for the given
1050 # device and filesystem types in "${host_fs_types[@]}"
1051 check_mount() {
1052     local _mod=$1
1053     local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
1054     local _ret
1055     local _moddep
1056
1057     [ "${#host_fs_types[*]}" -le 0 ] && return 1
1058
1059     # If we are already scheduled to be loaded, no need to check again.
1060     [[ " $mods_to_load " == *\ $_mod\ * ]] && return 0
1061     [[ " $mods_checked_as_dep " == *\ $_mod\ * ]] && return 1
1062
1063     # This should never happen, but...
1064     [[ -d $_moddir ]] || return 1
1065
1066     [[ $2 ]] || mods_checked_as_dep+=" $_mod "
1067
1068     if [[ " $omit_dracutmodules " == *\ $_mod\ * ]]; then
1069         return 1
1070     fi
1071
1072     if [[ " $dracutmodules $add_dracutmodules $force_add_dracutmodules" == *\ $_mod\ * ]]; then
1073         module_check_mount $_mod; ret=$?
1074
1075         # explicit module, so also accept ret=255
1076         [[ $ret = 0 || $ret = 255 ]] || return 1
1077     else
1078         # module not in our list
1079         if [[ $dracutmodules = all ]]; then
1080             # check, if we can and should install this module
1081             module_check_mount $_mod || return 1
1082         else
1083             # skip this module
1084             return 1
1085         fi
1086     fi
1087
1088
1089     for _moddep in $(module_depends $_mod); do
1090         # handle deps as if they were manually added
1091         [[ " $add_dracutmodules " == *\ $_moddep\ * ]] || \
1092             add_dracutmodules+=" $_moddep "
1093         [[ " $force_add_dracutmodules " == *\ $_moddep\ * ]] || \
1094             force_add_dracutmodules+=" $_moddep "
1095         # if a module we depend on fail, fail also
1096         if ! check_module $_moddep; then
1097             derror "dracut module '$_mod' depends on '$_moddep', which can't be installed"
1098             return 1
1099         fi
1100     done
1101
1102     [[ " $mods_to_load " == *\ $_mod\ * ]] || \
1103         mods_to_load+=" $_mod "
1104
1105     return 0
1106 }
1107
1108 # check_module <dracut module> [<use_as_dep>]
1109 # check if a dracut module is to be used in the initramfs process
1110 # if <use_as_dep> is set, then the process also keeps track
1111 # that the modules were checked for the dependency tracking process
1112 check_module() {
1113     local _mod=$1
1114     local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
1115     local _ret
1116     local _moddep
1117     # If we are already scheduled to be loaded, no need to check again.
1118     [[ " $mods_to_load " == *\ $_mod\ * ]] && return 0
1119     [[ " $mods_checked_as_dep " == *\ $_mod\ * ]] && return 1
1120
1121     # This should never happen, but...
1122     [[ -d $_moddir ]] || return 1
1123
1124     [[ $2 ]] || mods_checked_as_dep+=" $_mod "
1125
1126     if [[ " $omit_dracutmodules " == *\ $_mod\ * ]]; then
1127         dinfo "dracut module '$_mod' will not be installed, because it's in the list to be omitted!"
1128         return 1
1129     fi
1130
1131     if [[ " $dracutmodules $add_dracutmodules $force_add_dracutmodules" == *\ $_mod\ * ]]; then
1132         if [[ " $force_add_dracutmodules " == *\ $_mod\ * ]]; then
1133             module_check $_mod 1; ret=$?
1134         else
1135             module_check $_mod 0; ret=$?
1136         fi
1137         # explicit module, so also accept ret=255
1138         [[ $ret = 0 || $ret = 255 ]] || return 1
1139     else
1140         # module not in our list
1141         if [[ $dracutmodules = all ]]; then
1142             # check, if we can and should install this module
1143             module_check $_mod || return 1
1144         else
1145             # skip this module
1146             return 1
1147         fi
1148     fi
1149
1150     for _moddep in $(module_depends $_mod); do
1151         # handle deps as if they were manually added
1152         [[ " $add_dracutmodules " == *\ $_moddep\ * ]] || \
1153             add_dracutmodules+=" $_moddep "
1154         [[ " $force_add_dracutmodules " == *\ $_moddep\ * ]] || \
1155             force_add_dracutmodules+=" $_moddep "
1156         # if a module we depend on fail, fail also
1157         if ! check_module $_moddep; then
1158             derror "dracut module '$_mod' depends on '$_moddep', which can't be installed"
1159             return 1
1160         fi
1161     done
1162
1163     [[ " $mods_to_load " == *\ $_mod\ * ]] || \
1164         mods_to_load+=" $_mod "
1165
1166     return 0
1167 }
1168
1169 # for_each_module_dir <func>
1170 # execute "<func> <dracut module> 1"
1171 for_each_module_dir() {
1172     local _modcheck
1173     local _mod
1174     local _moddir
1175     local _func
1176     _func=$1
1177     for _moddir in "$dracutbasedir/modules.d"/[0-9][0-9]*; do
1178         _mod=${_moddir##*/}; _mod=${_mod#[0-9][0-9]}
1179         $_func $_mod 1
1180     done
1181
1182     # Report any missing dracut modules, the user has specified
1183     _modcheck="$add_dracutmodules $force_add_dracutmodules"
1184     [[ $dracutmodules != all ]] && _modcheck="$m $dracutmodules"
1185     for _mod in $_modcheck; do
1186         [[ " $mods_to_load " == *\ $_mod\ * ]] && continue
1187         [[ " $omit_dracutmodules " == *\ $_mod\ * ]] && continue
1188         derror "dracut module '$_mod' cannot be found or installed."
1189     done
1190 }
1191
1192 # Install a single kernel module along with any firmware it may require.
1193 # $1 = full path to kernel module to install
1194 install_kmod_with_fw() {
1195     # no need to go further if the module is already installed
1196
1197     [[ -e "${initdir}/lib/modules/$kernel/${1##*/lib/modules/$kernel/}" ]] \
1198         && return 0
1199
1200     if [[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && [[ -e "$DRACUT_KERNEL_LAZY_HASHDIR/${1##*/}" ]]; then
1201         read ret < "$DRACUT_KERNEL_LAZY_HASHDIR/${1##*/}"
1202         return $ret
1203     fi
1204
1205     if [[ $omit_drivers ]]; then
1206         local _kmod=${1##*/}
1207         _kmod=${_kmod%.ko}
1208         _kmod=${_kmod/-/_}
1209         if [[ "$_kmod" =~ $omit_drivers ]]; then
1210             dinfo "Omitting driver $_kmod"
1211             return 0
1212         fi
1213         if [[ "${1##*/lib/modules/$kernel/}" =~ $omit_drivers ]]; then
1214             dinfo "Omitting driver $_kmod"
1215             return 0
1216         fi
1217     fi
1218
1219     if [[ $silent_omit_drivers ]]; then
1220         local _kmod=${1##*/}
1221         _kmod=${_kmod%.ko}
1222         _kmod=${_kmod/-/_}
1223         [[ "$_kmod" =~ $silent_omit_drivers ]] && return 0
1224         [[ "${1##*/lib/modules/$kernel/}" =~ $silent_omit_drivers ]] && return 0
1225     fi
1226
1227     inst_simple "$1" "/lib/modules/$kernel/${1##*/lib/modules/$kernel/}"
1228     ret=$?
1229     [[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && \
1230         [[ -d "$DRACUT_KERNEL_LAZY_HASHDIR" ]] && \
1231         echo $ret > "$DRACUT_KERNEL_LAZY_HASHDIR/${1##*/}"
1232     (($ret != 0)) && return $ret
1233
1234     local _modname=${1##*/} _fwdir _found _fw
1235     _modname=${_modname%.ko*}
1236     for _fw in $(modinfo -k $kernel -F firmware $1 2>/dev/null); do
1237         _found=''
1238         for _fwdir in $fw_dir; do
1239             if [[ -d $_fwdir && -f $_fwdir/$_fw ]]; then
1240                 inst_simple "$_fwdir/$_fw" "/lib/firmware/$_fw"
1241                 _found=yes
1242             fi
1243         done
1244         if [[ $_found != yes ]]; then
1245             if ! [[ -d $(echo /sys/module/${_modname//-/_}|{ read a b; echo $a; }) ]]; then
1246                 dinfo "Possible missing firmware \"${_fw}\" for kernel module" \
1247                     "\"${_modname}.ko\""
1248             else
1249                 dwarn "Possible missing firmware \"${_fw}\" for kernel module" \
1250                     "\"${_modname}.ko\""
1251             fi
1252         fi
1253     done
1254     return 0
1255 }
1256
1257 # Do something with all the dependencies of a kernel module.
1258 # Note that kernel modules depend on themselves using the technique we use
1259 # $1 = function to call for each dependency we find
1260 #      It will be passed the full path to the found kernel module
1261 # $2 = module to get dependencies for
1262 # rest of args = arguments to modprobe
1263 # _fderr specifies FD passed from surrounding scope
1264 for_each_kmod_dep() {
1265     local _func=$1 _kmod=$2 _cmd _modpath _options
1266     shift 2
1267     modprobe "$@" --ignore-install --show-depends $_kmod 2>&${_fderr} | (
1268         while read _cmd _modpath _options; do
1269             [[ $_cmd = insmod ]] || continue
1270             $_func ${_modpath} || exit $?
1271         done
1272     )
1273 }
1274
1275 dracut_kernel_post() {
1276     local _moddirname=${srcmods%%/lib/modules/*}
1277     local _pid
1278
1279     if [[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && [[ -f "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist" ]]; then
1280         xargs -r modprobe -a ${_moddirname+-d ${_moddirname}/} \
1281             --ignore-install --show-depends --set-version $kernel \
1282             < "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist" 2>/dev/null \
1283             | sort -u \
1284             | while read _cmd _modpath _options; do
1285             [[ $_cmd = insmod ]] || continue
1286             echo "$_modpath"
1287         done > "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist.dep"
1288
1289         (
1290             if [[ $DRACUT_INSTALL ]] && [[ -z $_moddirname ]]; then
1291                 xargs -r $DRACUT_INSTALL ${initdir+-D "$initdir"} -a < "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist.dep"
1292             else
1293                 while read _modpath; do
1294                     local _destpath=$_modpath
1295                     [[ $_moddirname ]] && _destpath=${_destpath##$_moddirname/}
1296                     _destpath=${_destpath##*/lib/modules/$kernel/}
1297                     inst_simple "$_modpath" "/lib/modules/$kernel/${_destpath}" || exit $?
1298                 done < "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist.dep"
1299             fi
1300         ) &
1301         _pid=$(jobs -p | while read a ; do printf ":$a";done)
1302         _pid=${_pid##*:}
1303
1304         if [[ $DRACUT_INSTALL ]]; then
1305             xargs -r modinfo -k $kernel -F firmware < "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist.dep" \
1306                 | while read line; do
1307                 for _fwdir in $fw_dir; do
1308                     echo $_fwdir/$line;
1309                 done;
1310             done | xargs -r $DRACUT_INSTALL ${initdir+-D "$initdir"} -a -o
1311         else
1312             for _fw in $(xargs -r modinfo -k $kernel -F firmware < "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist.dep"); do
1313                 for _fwdir in $fw_dir; do
1314                     if [[ -d $_fwdir && -f $_fwdir/$_fw ]]; then
1315                         inst_simple "$_fwdir/$_fw" "/lib/firmware/$_fw"
1316                         break
1317                     fi
1318                 done
1319             done
1320         fi
1321
1322         wait $_pid
1323     fi
1324
1325     for _f in modules.builtin.bin modules.builtin; do
1326         [[ $srcmods/$_f ]] && break
1327     done || {
1328         dfatal "No modules.builtin.bin and modules.builtin found!"
1329         return 1
1330     }
1331
1332     for _f in modules.builtin.bin modules.builtin modules.order; do
1333         [[ $srcmods/$_f ]] && inst_simple "$srcmods/$_f" "/lib/modules/$kernel/$_f"
1334     done
1335
1336     # generate module dependencies for the initrd
1337     if [[ -d $initdir/lib/modules/$kernel ]] && \
1338         ! depmod -a -b "$initdir" $kernel; then
1339         dfatal "\"depmod -a $kernel\" failed."
1340         exit 1
1341     fi
1342
1343     [[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && rm -fr -- "$DRACUT_KERNEL_LAZY_HASHDIR"
1344 }
1345
1346 module_is_host_only() {
1347     local _mod=$1
1348     _mod=${_mod##*/}
1349     _mod=${_mod%.ko}
1350
1351     [[ " $add_drivers " == *\ ${_mod}\ * ]] && return 0
1352
1353     # check if module is loaded
1354     for i in /sys/module/${_mod//-/_}; do
1355         [[ -d $i ]] && return 0
1356     done
1357
1358     # check if module is loadable on the current kernel
1359     # this covers the case, where a new module is introduced
1360     # or a module was renamed
1361     # or a module changed from builtin to a module
1362     modinfo -F filename "$_mod" &>/dev/null || return 0
1363
1364     return 1
1365 }
1366
1367 find_kernel_modules_by_path () {
1368     local _OLDIFS
1369
1370     [[ -f "$srcmods/modules.dep" ]] || return 0
1371
1372     _OLDIFS=$IFS
1373     IFS=:
1374     while read a rest; do
1375         [[ $a = */$1/* ]] || continue
1376         printf "%s\n" "$srcmods/$a"
1377     done < "$srcmods/modules.dep"
1378     IFS=$_OLDIFS
1379     return 0
1380 }
1381
1382 find_kernel_modules () {
1383     find_kernel_modules_by_path  drivers
1384 }
1385
1386 # instmods [-c [-s]] <kernel module> [<kernel module> ... ]
1387 # instmods [-c [-s]] <kernel subsystem>
1388 # install kernel modules along with all their dependencies.
1389 # <kernel subsystem> can be e.g. "=block" or "=drivers/usb/storage"
1390 instmods() {
1391     [[ $no_kernel = yes ]] && return
1392     # called [sub]functions inherit _fderr
1393     local _fderr=9
1394     local _check=no
1395     local _silent=no
1396     if [[ $1 = '-c' ]]; then
1397         _check=yes
1398         shift
1399     fi
1400
1401     if [[ $1 = '-s' ]]; then
1402         _silent=yes
1403         shift
1404     fi
1405
1406     function inst1mod() {
1407         local _ret=0 _mod="$1"
1408         case $_mod in
1409             =*)
1410                 ( [[ "$_mpargs" ]] && echo $_mpargs
1411                     find_kernel_modules_by_path "${_mod#=}" ) \
1412                         | instmods
1413                 ((_ret+=$?))
1414                 ;;
1415             --*) _mpargs+=" $_mod" ;;
1416             *)
1417                 _mod=${_mod##*/}
1418                 # if we are already installed, skip this module and go on
1419                 # to the next one.
1420                 if [[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && \
1421                     [[ -f "$DRACUT_KERNEL_LAZY_HASHDIR/${_mod%.ko}.ko" ]]; then
1422                     read _ret <"$DRACUT_KERNEL_LAZY_HASHDIR/${_mod%.ko}.ko"
1423                     return $_ret
1424                 fi
1425
1426                 _mod=${_mod/-/_}
1427                 if [[ $omit_drivers ]] && [[ "$_mod" =~ $omit_drivers ]]; then
1428                     dinfo "Omitting driver ${_mod##$srcmods}"
1429                     return 0
1430                 fi
1431
1432                 # If we are building a host-specific initramfs and this
1433                 # module is not already loaded, move on to the next one.
1434                 [[ $hostonly ]] \
1435                     && ! module_is_host_only "$_mod" \
1436                     && return 0
1437
1438                 if [[ "$_check" = "yes" ]] || ! [[ $DRACUT_KERNEL_LAZY_HASHDIR ]]; then
1439                     # We use '-d' option in modprobe only if modules prefix path
1440                     # differs from default '/'.  This allows us to use dracut with
1441                     # old version of modprobe which doesn't have '-d' option.
1442                     local _moddirname=${srcmods%%/lib/modules/*}
1443                     [[ -n ${_moddirname} ]] && _moddirname="-d ${_moddirname}/"
1444
1445                     # ok, load the module, all its dependencies, and any firmware
1446                     # it may require
1447                     for_each_kmod_dep install_kmod_with_fw $_mod \
1448                         --set-version $kernel ${_moddirname} $_mpargs
1449                     ((_ret+=$?))
1450                 else
1451                     [[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && \
1452                         echo $_mod >> "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist"
1453                 fi
1454                 ;;
1455         esac
1456         return $_ret
1457     }
1458
1459     function instmods_1() {
1460         local _mod _mpargs
1461         if (($# == 0)); then  # filenames from stdin
1462             while read _mod; do
1463                 inst1mod "${_mod%.ko*}" || {
1464                     if [[ "$_check" == "yes" ]]; then
1465                         [[ "$_silent" == "no" ]] && dfatal "Failed to install module $_mod"
1466                         return 1
1467                     fi
1468                 }
1469             done
1470         fi
1471         while (($# > 0)); do  # filenames as arguments
1472             inst1mod ${1%.ko*} || {
1473                 if [[ "$_check" == "yes" ]]; then
1474                     [[ "$_silent" == "no" ]] && dfatal "Failed to install module $1"
1475                     return 1
1476                 fi
1477             }
1478             shift
1479         done
1480         return 0
1481     }
1482
1483     local _ret _filter_not_found='FATAL: Module .* not found.'
1484     # Capture all stderr from modprobe to _fderr. We could use {var}>...
1485     # redirections, but that would make dracut require bash4 at least.
1486     eval "( instmods_1 \"\$@\" ) ${_fderr}>&1" \
1487         | while read line; do [[ "$line" =~ $_filter_not_found ]] || echo $line;done | derror
1488     _ret=$?
1489     return $_ret
1490 }
1491 # get_cpu_vendor
1492 # Only two values are returned: AMD or Intel
1493 get_cpu_vendor ()
1494 {
1495     if grep -qE AMD /proc/cpuinfo; then
1496         printf "AMD"
1497     fi
1498     if grep -qE Intel /proc/cpuinfo; then
1499         printf "Intel"
1500     fi
1501 }
1502
1503 # get_host_ucode
1504 # Get the hosts' ucode file based on the /proc/cpuinfo
1505 get_ucode_file ()
1506 {
1507     local family=`grep -E "cpu family" /proc/cpuinfo | head -1 | sed s/.*:\ //`
1508     local model=`grep -E "model" /proc/cpuinfo |grep -v name | head -1 | sed s/.*:\ //`
1509     local stepping=`grep -E "stepping" /proc/cpuinfo | head -1 | sed s/.*:\ //`
1510
1511     if [[ "$(get_cpu_vendor)" == "AMD" ]]; then
1512         # If family greater or equal than 0x15
1513         if [[ $family -ge 21 ]]; then
1514             printf "microcode_amd_fam15h.bin"
1515         else
1516             printf "microcode_amd.bin"
1517         fi
1518     fi
1519     if [[ "$(get_cpu_vendor)" == "Intel" ]]; then
1520         # The /proc/cpuinfo are in decimal.
1521         printf "%02x-%02x-%02x" ${family} ${model} ${stepping}
1522     fi
1523 }