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 the ID_FS_TYPE variable from udev for a device.
 265 # Example:
 266 # $ get_fs_env /dev/sda2
 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 # find_dev_fsopts <device>
 445 # Echo the filesystem options for a given device.
 446 # /proc/self/mountinfo is taken as the primary source of information
 447 # and /etc/fstab is used as a fallback.
 448 # Example:
 449 # $ find_dev_fsopts /dev/sda2
 450 # rw,relatime,discard,data=ordered
 451 find_dev_fsopts() {
 452     local _find_dev _opts
 453     _find_dev="$1"
 454     if ! [[ "$_find_dev" = /dev* ]]; then
 455         [[ -b "/dev/block/$_find_dev" ]] && _find_dev="/dev/block/$_find_dev"
 456     fi
 457
 458     if [[ $use_fstab != yes ]]; then
 459         findmnt -e -v -n -o 'OPTIONS' --source "$_find_dev" 2>/dev/null && return 0
 460     fi
 461
 462     findmnt --fstab -e -v -n -o 'OPTIONS' --source "$_find_dev"
 463 }
 464
 465
 466 # finds the major:minor of the block device backing the root filesystem.
 467 find_root_block_device() { find_block_device /; }
 468
 469 # for_each_host_dev_fs <func>
 470 # Execute "<func> <dev> <filesystem>" for every "<dev> <fs>" pair found
 471 # in ${host_fs_types[@]}
 472 for_each_host_dev_fs()
 473 {
 474     local _func="$1"
 475     local _dev
 476     local _ret=1
 477
 478     [[ "${!host_fs_types[@]}" ]] || return 0
 479
 480     for _dev in "${!host_fs_types[@]}"; do
 481         $_func "$_dev" "${host_fs_types[$_dev]}" && _ret=0
 482     done
 483     return $_ret
 484 }
 485
 486 host_fs_all()
 487 {
 488     echo "${host_fs_types[@]}"
 489 }
 490
 491 # Walk all the slave relationships for a given block device.
 492 # Stop when our helper function returns success
 493 # $1 = function to call on every found block device
 494 # $2 = block device in major:minor format
 495 check_block_and_slaves() {
 496     local _x
 497     [[ -b /dev/block/$2 ]] || return 1 # Not a block device? So sorry.
 498     "$1" $2 && return
 499     check_vol_slaves "$@" && return 0
 500     if [[ -f /sys/dev/block/$2/../dev ]]; then
 501         check_block_and_slaves $1 $(<"/sys/dev/block/$2/../dev") && return 0
 502     fi
 503     [[ -d /sys/dev/block/$2/slaves ]] || return 1
 504     for _x in /sys/dev/block/$2/slaves/*/dev; do
 505         [[ -f $_x ]] || continue
 506         check_block_and_slaves $1 $(<"$_x") && return 0
 507     done
 508     return 1
 509 }
 510
 511 check_block_and_slaves_all() {
 512     local _x _ret=1
 513     [[ -b /dev/block/$2 ]] || return 1 # Not a block device? So sorry.
 514     if "$1" $2; then
 515         _ret=0
 516     fi
 517     check_vol_slaves "$@" && return 0
 518     if [[ -f /sys/dev/block/$2/../dev ]]; then
 519         check_block_and_slaves_all $1 $(<"/sys/dev/block/$2/../dev") && _ret=0
 520     fi
 521     [[ -d /sys/dev/block/$2/slaves ]] || return 1
 522     for _x in /sys/dev/block/$2/slaves/*/dev; do
 523         [[ -f $_x ]] || continue
 524         check_block_and_slaves_all $1 $(<"$_x") && _ret=0
 525     done
 526     return $_ret
 527 }
 528 # for_each_host_dev_and_slaves <func>
 529 # Execute "<func> <dev>" for every "<dev>" found
 530 # in ${host_devs[@]} and their slaves
 531 for_each_host_dev_and_slaves_all()
 532 {
 533     local _func="$1"
 534     local _dev
 535     local _ret=1
 536
 537     [[ "${host_devs[@]}" ]] || return 0
 538
 539     for _dev in ${host_devs[@]}; do
 540         [[ -b "$_dev" ]] || continue
 541         if check_block_and_slaves_all $_func $(get_maj_min $_dev); then
 542             _ret=0
 543         fi
 544     done
 545     return $_ret
 546 }
 547
 548 for_each_host_dev_and_slaves()
 549 {
 550     local _func="$1"
 551     local _dev
 552
 553     [[ "${host_devs[@]}" ]] || return 0
 554
 555     for _dev in ${host_devs[@]}; do
 556         [[ -b "$_dev" ]] || continue
 557         check_block_and_slaves $_func $(get_maj_min $_dev) && return 0
 558     done
 559     return 1
 560 }
 561
 562 # ugly workaround for the lvm design
 563 # There is no volume group device,
 564 # so, there are no slave devices for volume groups.
 565 # Logical volumes only have the slave devices they really live on,
 566 # but you cannot create the logical volume without the volume group.
 567 # And the volume group might be bigger than the devices the LV needs.
 568 check_vol_slaves() {
 569     local _lv _vg _pv
 570     for i in /dev/mapper/*; do
 571         _lv=$(get_maj_min $i)
 572         if [[ $_lv = $2 ]]; then
 573             _vg=$(lvm lvs --noheadings -o vg_name $i 2>/dev/null)
 574             # strip space
 575             _vg=$(echo $_vg)
 576             if [[ $_vg ]]; then
 577                 for _pv in $(lvm vgs --noheadings -o pv_name "$_vg" 2>/dev/null)
 578                 do
 579                     check_block_and_slaves $1 $(get_maj_min $_pv) && return 0
 580                 done
 581             fi
 582         fi
 583     done
 584     return 1
 585 }
 586
 587 # fs_get_option <filesystem options> <search for option>
 588 # search for a specific option in a bunch of filesystem options
 589 # and return the value
 590 fs_get_option() {
 591     local _fsopts=$1
 592     local _option=$2
 593     local OLDIFS="$IFS"
 594     IFS=,
 595     set -- $_fsopts
 596     IFS="$OLDIFS"
 597     while [ $# -gt 0 ]; do
 598         case $1 in
 599             $_option=*)
 600                 echo ${1#${_option}=}
 601                 break
 602         esac
 603         shift
 604     done
 605 }
 606
 607
 608 if ! [[ $DRACUT_INSTALL ]]; then
 609     DRACUT_INSTALL=$(find_binary dracut-install)
 610 fi
 611
 612 if ! [[ $DRACUT_INSTALL ]] && [[ -x $dracutbasedir/dracut-install ]]; then
 613     DRACUT_INSTALL=$dracutbasedir/dracut-install
 614 fi
 615
 616 if ! [[ -x $DRACUT_INSTALL ]]; then
 617     dfatal "dracut-install not found!"
 618     exit 10
 619 fi
 620
 621 [[ $DRACUT_RESOLVE_LAZY ]] || export DRACUT_RESOLVE_DEPS=1
 622 inst_dir() {
 623     [[ -e ${initdir}/"$1" ]] && return 0  # already there
 624     $DRACUT_INSTALL ${initdir+-D "$initdir"} -d "$@"
 625     (($? != 0)) && derror $DRACUT_INSTALL ${initdir+-D "$initdir"} -d "$@" || :
 626 }
 627
 628 inst() {
 629     [[ -e ${initdir}/"${2:-$1}" ]] && return 0  # already there
 630         #dinfo "$DRACUT_INSTALL -l $@"
 631     $DRACUT_INSTALL ${initdir+-D "$initdir"} ${DRACUT_RESOLVE_DEPS+-l} ${DRACUT_FIPS_MODE+-H} "$@"
 632     (($? != 0)) && derror $DRACUT_INSTALL ${initdir+-D "$initdir"} ${DRACUT_RESOLVE_DEPS+-l} ${DRACUT_FIPS_MODE+-H} "$@" || :
 633 }
 634
 635 inst_simple() {
 636     [[ -e ${initdir}/"${2:-$1}" ]] && return 0  # already there
 637     [[ -e $1 ]] || return 1  # no source
 638     $DRACUT_INSTALL ${initdir+-D "$initdir"} "$@"
 639     (($? != 0)) && derror $DRACUT_INSTALL ${initdir+-D "$initdir"} "$@" || :
 640 }
 641
 642 inst_symlink() {
 643     [[ -e ${initdir}/"${2:-$1}" ]] && return 0  # already there
 644     [[ -L $1 ]] || return 1
 645     $DRACUT_INSTALL ${initdir+-D "$initdir"} ${DRACUT_RESOLVE_DEPS+-l}  ${DRACUT_FIPS_MODE+-H} "$@"
 646     (($? != 0)) && derror $DRACUT_INSTALL ${initdir+-D "$initdir"} ${DRACUT_RESOLVE_DEPS+-l}  ${DRACUT_FIPS_MODE+-H} "$@" || :
 647 }
 648
 649 inst_multiple() {
 650     local ret
 651         #dinfo "initdir=$initdir $DRACUT_INSTALL -l $@"
 652     $DRACUT_INSTALL ${initdir+-D "$initdir"} -a ${DRACUT_RESOLVE_DEPS+-l}  ${DRACUT_FIPS_MODE+-H} "$@"
 653     ret=$?
 654     (($ret != 0)) && derror $DRACUT_INSTALL ${initdir+-D "$initdir"} -a ${DRACUT_RESOLVE_DEPS+-l}  ${DRACUT_FIPS_MODE+-H} "$@" || :
 655     return $ret
 656 }
 657
 658 dracut_install() {
 659     inst_multiple "$@"
 660 }
 661
 662 inst_library() {
 663     [[ -e ${initdir}/"${2:-$1}" ]] && return 0  # already there
 664     [[ -e $1 ]] || return 1  # no source
 665     $DRACUT_INSTALL ${initdir+-D "$initdir"} ${DRACUT_RESOLVE_DEPS+-l}  ${DRACUT_FIPS_MODE+-H} "$@"
 666     (($? != 0)) && derror $DRACUT_INSTALL ${initdir+-D "$initdir"} ${DRACUT_RESOLVE_DEPS+-l}  ${DRACUT_FIPS_MODE+-H} "$@" || :
 667 }
 668
 669 inst_binary() {
 670     $DRACUT_INSTALL ${initdir+-D "$initdir"} ${DRACUT_RESOLVE_DEPS+-l}  ${DRACUT_FIPS_MODE+-H} "$@"
 671     (($? != 0)) && derror $DRACUT_INSTALL ${initdir+-D "$initdir"} ${DRACUT_RESOLVE_DEPS+-l}  ${DRACUT_FIPS_MODE+-H} "$@" || :
 672 }
 673
 674 inst_script() {
 675     $DRACUT_INSTALL ${initdir+-D "$initdir"} ${DRACUT_RESOLVE_DEPS+-l}  ${DRACUT_FIPS_MODE+-H} "$@"
 676     (($? != 0)) && derror $DRACUT_INSTALL ${initdir+-D "$initdir"} ${DRACUT_RESOLVE_DEPS+-l}  ${DRACUT_FIPS_MODE+-H} "$@" || :
 677 }
 678
 679 # find symlinks linked to given library file
 680 # $1 = library file
 681 # Function searches for symlinks by stripping version numbers appended to
 682 # library filename, checks if it points to the same target and finally
 683 # prints the list of symlinks to stdout.
 684 #
 685 # Example:
 686 # rev_lib_symlinks libfoo.so.8.1
 687 # output: libfoo.so.8 libfoo.so
 688 # (Only if libfoo.so.8 and libfoo.so exists on host system.)
 689 rev_lib_symlinks() {
 690     [[ ! $1 ]] && return 0
 691
 692     local fn="$1" orig="$(readlink -f "$1")" links=''
 693
 694     [[ ${fn} == *.so.* ]] || return 1
 695
 696     until [[ ${fn##*.} == so ]]; do
 697         fn="${fn%.*}"
 698         [[ -L ${fn} && $(readlink -f "${fn}") == ${orig} ]] && links+=" ${fn}"
 699     done
 700
 701     echo "${links}"
 702 }
 703
 704 # attempt to install any programs specified in a udev rule
 705 inst_rule_programs() {
 706     local _prog _bin
 707
 708     if grep -qE 'PROGRAM==?"[^ "]+' "$1"; then
 709         for _prog in $(grep -E 'PROGRAM==?"[^ "]+' "$1" | sed -r 's/.*PROGRAM==?"([^ "]+).*/\1/'); do
 710             _bin=""
 711             if [ -x ${udevdir}/$_prog ]; then
 712                 _bin=${udevdir}/$_prog
 713             elif [[ "${_prog/\$env\{/}" == "$_prog" ]]; then
 714                 _bin=$(find_binary "$_prog") || {
 715                     dinfo "Skipping program $_prog using in udev rule ${1##*/} as it cannot be found"
 716                     continue;
 717                 }
 718             fi
 719
 720             [[ $_bin ]] && inst_binary "$_bin"
 721         done
 722     fi
 723     if grep -qE 'RUN[+=]=?"[^ "]+' "$1"; then
 724         for _prog in $(grep -E 'RUN[+=]=?"[^ "]+' "$1" | sed -r 's/.*RUN[+=]=?"([^ "]+).*/\1/'); do
 725             _bin=""
 726             if [ -x ${udevdir}/$_prog ]; then
 727                 _bin=${udevdir}/$_prog
 728             elif [[ "${_prog/\$env\{/}" == "$_prog" ]] && [[ "${_prog}" != "/sbin/initqueue" ]]; then
 729                 _bin=$(find_binary "$_prog") || {
 730                     dinfo "Skipping program $_prog using in udev rule ${1##*/} as it cannot be found"
 731                     continue;
 732                 }
 733             fi
 734
 735             [[ $_bin ]] && inst_binary "$_bin"
 736         done
 737     fi
 738     if grep -qE 'IMPORT\{program\}==?"[^ "]+' "$1"; then
 739         for _prog in $(grep -E 'IMPORT\{program\}==?"[^ "]+' "$1" | sed -r 's/.*IMPORT\{program\}==?"([^ "]+).*/\1/'); do
 740             _bin=""
 741             if [ -x ${udevdir}/$_prog ]; then
 742                 _bin=${udevdir}/$_prog
 743             elif [[ "${_prog/\$env\{/}" == "$_prog" ]]; then
 744                 _bin=$(find_binary "$_prog") || {
 745                     dinfo "Skipping program $_prog using in udev rule ${1##*/} as it cannot be found"
 746                     continue;
 747                 }
 748             fi
 749
 750             [[ $_bin ]] && dracut_install "$_bin"
 751         done
 752     fi
 753 }
 754
 755 # attempt to install any programs specified in a udev rule
 756 inst_rule_group_owner() {
 757     local i
 758
 759     if grep -qE 'OWNER=?"[^ "]+' "$1"; then
 760         for i in $(grep -E 'OWNER=?"[^ "]+' "$1" | sed -r 's/.*OWNER=?"([^ "]+).*/\1/'); do
 761             if ! egrep -q "^$i:" "$initdir/etc/passwd" 2>/dev/null; then
 762                 egrep "^$i:" /etc/passwd 2>/dev/null >> "$initdir/etc/passwd"
 763             fi
 764         done
 765     fi
 766     if grep -qE 'GROUP=?"[^ "]+' "$1"; then
 767         for i in $(grep -E 'GROUP=?"[^ "]+' "$1" | sed -r 's/.*GROUP=?"([^ "]+).*/\1/'); do
 768             if ! egrep -q "^$i:" "$initdir/etc/group" 2>/dev/null; then
 769                 egrep "^$i:" /etc/group 2>/dev/null >> "$initdir/etc/group"
 770             fi
 771         done
 772     fi
 773 }
 774
 775 inst_rule_initqueue() {
 776     if grep -q -F initqueue "$1"; then
 777         dracut_need_initqueue
 778     fi
 779 }
 780
 781 # udev rules always get installed in the same place, so
 782 # create a function to install them to make life simpler.
 783 inst_rules() {
 784     local _target=/etc/udev/rules.d _rule _found
 785
 786     inst_dir "${udevdir}/rules.d"
 787     inst_dir "$_target"
 788     for _rule in "$@"; do
 789         if [ "${_rule#/}" = "$_rule" ]; then
 790             for r in ${udevdir}/rules.d /etc/udev/rules.d; do
 791                 if [[ -f $r/$_rule ]]; then
 792                     _found="$r/$_rule"
 793                     inst_rule_programs "$_found"
 794                     inst_rule_group_owner "$_found"
 795                     inst_rule_initqueue "$_found"
 796                     inst_simple "$_found"
 797                 fi
 798             done
 799         fi
 800         for r in '' ./ $dracutbasedir/rules.d/; do
 801             if [[ -f ${r}$_rule ]]; then
 802                 _found="${r}$_rule"
 803                 inst_rule_programs "$_found"
 804                 inst_rule_group_owner "$_found"
 805                 inst_rule_initqueue "$_found"
 806                 inst_simple "$_found" "$_target/${_found##*/}"
 807             fi
 808         done
 809         [[ $_found ]] || dinfo "Skipping udev rule: $_rule"
 810     done
 811 }
 812
 813 prepare_udev_rules() {
 814     [ -z "$UDEVVERSION" ] && export UDEVVERSION=$(udevadm --version)
 815
 816     for f in "$@"; do
 817         f="${initdir}/etc/udev/rules.d/$f"
 818         [ -e "$f" ] || continue
 819         while read line; do
 820             if [ "${line%%IMPORT PATH_ID}" != "$line" ]; then
 821                 if [ $UDEVVERSION -ge 174 ]; then
 822                     printf '%sIMPORT{builtin}="path_id"\n' "${line%%IMPORT PATH_ID}"
 823                 else
 824                     printf '%sIMPORT{program}="path_id %%p"\n' "${line%%IMPORT PATH_ID}"
 825                 fi
 826             elif [ "${line%%IMPORT BLKID}" != "$line" ]; then
 827                 if [ $UDEVVERSION -ge 176 ]; then
 828                     printf '%sIMPORT{builtin}="blkid"\n' "${line%%IMPORT BLKID}"
 829                 else
 830                     printf '%sIMPORT{program}="/sbin/blkid -o udev -p $tempnode"\n' "${line%%IMPORT BLKID}"
 831                 fi
 832             else
 833                 echo "$line"
 834             fi
 835         done < "${f}" > "${f}.new"
 836         mv "${f}.new" "$f"
 837     done
 838 }
 839
 840 # install function specialized for hooks
 841 # $1 = type of hook, $2 = hook priority (lower runs first), $3 = hook
 842 # All hooks should be POSIX/SuS compliant, they will be sourced by init.
 843 inst_hook() {
 844     if ! [[ -f $3 ]]; then
 845         dfatal "Cannot install a hook ($3) that does not exist."
 846         dfatal "Aborting initrd creation."
 847         exit 1
 848     elif ! [[ "$hookdirs" == *$1* ]]; then
 849         dfatal "No such hook type $1. Aborting initrd creation."
 850         exit 1
 851     fi
 852     inst_simple "$3" "/lib/dracut/hooks/${1}/${2}-${3##*/}"
 853 }
 854
 855 # install any of listed files
 856 #
 857 # If first argument is '-d' and second some destination path, first accessible
 858 # source is installed into this path, otherwise it will installed in the same
 859 # path as source.  If none of listed files was installed, function return 1.
 860 # On first successful installation it returns with 0 status.
 861 #
 862 # Example:
 863 #
 864 # inst_any -d /bin/foo /bin/bar /bin/baz
 865 #
 866 # Lets assume that /bin/baz exists, so it will be installed as /bin/foo in
 867 # initramfs.
 868 inst_any() {
 869     local to f
 870
 871     [[ $1 = '-d' ]] && to="$2" && shift 2
 872
 873     for f in "$@"; do
 874         if [[ -e $f ]]; then
 875             [[ $to ]] && inst "$f" "$to" && return 0
 876             inst "$f" && return 0
 877         fi
 878     done
 879
 880     return 1
 881 }
 882
 883
 884 # inst_libdir_file [-n <pattern>] <file> [<file>...]
 885 # Install a <file> located on a lib directory to the initramfs image
 886 # -n <pattern> install matching files
 887 inst_libdir_file() {
 888     local _files
 889     if [[ "$1" == "-n" ]]; then
 890         local _pattern=$2
 891         shift 2
 892         for _dir in $libdirs; do
 893             for _i in "$@"; do
 894                 for _f in "$_dir"/$_i; do
 895                     [[ "$_f" =~ $_pattern ]] || continue
 896                     [[ -e "$_f" ]] && _files+="$_f "
 897                 done
 898             done
 899         done
 900     else
 901         for _dir in $libdirs; do
 902             for _i in "$@"; do
 903                 for _f in "$_dir"/$_i; do
 904                     [[ -e "$_f" ]] && _files+="$_f "
 905                 done
 906             done
 907         done
 908     fi
 909     [[ $_files ]] && inst_multiple $_files
 910 }
 911
 912
 913 # install function decompressing the target and handling symlinks
 914 # $@ = list of compressed (gz or bz2) files or symlinks pointing to such files
 915 #
 916 # Function install targets in the same paths inside overlay but decompressed
 917 # and without extensions (.gz, .bz2).
 918 inst_decompress() {
 919     local _src _cmd
 920
 921     for _src in $@
 922     do
 923         case ${_src} in
 924             *.gz) _cmd='gzip -f -d' ;;
 925             *.bz2) _cmd='bzip2 -d' ;;
 926             *) return 1 ;;
 927         esac
 928         inst_simple ${_src}
 929         # Decompress with chosen tool.  We assume that tool changes name e.g.
 930         # from 'name.gz' to 'name'.
 931         ${_cmd} "${initdir}${_src}"
 932     done
 933 }
 934
 935 # It's similar to above, but if file is not compressed, performs standard
 936 # install.
 937 # $@ = list of files
 938 inst_opt_decompress() {
 939     local _src
 940
 941     for _src in $@
 942     do
 943         inst_decompress "${_src}" || inst "${_src}"
 944     done
 945 }
 946
 947 # module_check <dracut module>
 948 # execute the check() function of module-setup.sh of <dracut module>
 949 # or the "check" script, if module-setup.sh is not found
 950 # "check $hostonly" is called
 951 module_check() {
 952     local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
 953     local _ret
 954     local _forced=0
 955     local _hostonly=$hostonly
 956     [ $# -eq 2 ] && _forced=$2
 957     [[ -d $_moddir ]] || return 1
 958     if [[ ! -f $_moddir/module-setup.sh ]]; then
 959         # if we do not have a check script, we are unconditionally included
 960         [[ -x $_moddir/check ]] || return 0
 961         [ $_forced -ne 0 ] && unset hostonly
 962         $_moddir/check $hostonly
 963         _ret=$?
 964     else
 965         unset check depends install installkernel
 966         check() { true; }
 967         . $_moddir/module-setup.sh
 968         is_func check || return 0
 969         [ $_forced -ne 0 ] && unset hostonly
 970         check $hostonly
 971         _ret=$?
 972         unset check depends install installkernel
 973     fi
 974     hostonly=$_hostonly
 975     return $_ret
 976 }
 977
 978 # module_check_mount <dracut module>
 979 # execute the check() function of module-setup.sh of <dracut module>
 980 # or the "check" script, if module-setup.sh is not found
 981 # "mount_needs=1 check 0" is called
 982 module_check_mount() {
 983     local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
 984     local _ret
 985     mount_needs=1
 986     [[ -d $_moddir ]] || return 1
 987     if [[ ! -f $_moddir/module-setup.sh ]]; then
 988         # if we do not have a check script, we are unconditionally included
 989         [[ -x $_moddir/check ]] || return 0
 990         mount_needs=1 $_moddir/check 0
 991         _ret=$?
 992     else
 993         unset check depends install installkernel
 994         check() { false; }
 995         . $_moddir/module-setup.sh
 996         check 0
 997         _ret=$?
 998         unset check depends install installkernel
 999     fi
1000     unset mount_needs
1001     return $_ret
1002 }
1003
1004 # module_depends <dracut module>
1005 # execute the depends() function of module-setup.sh of <dracut module>
1006 # or the "depends" script, if module-setup.sh is not found
1007 module_depends() {
1008     local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
1009     local _ret
1010     [[ -d $_moddir ]] || return 1
1011     if [[ ! -f $_moddir/module-setup.sh ]]; then
1012         # if we do not have a check script, we have no deps
1013         [[ -x $_moddir/check ]] || return 0
1014         $_moddir/check -d
1015         return $?
1016     else
1017         unset check depends install installkernel
1018         depends() { true; }
1019         . $_moddir/module-setup.sh
1020         depends
1021         _ret=$?
1022         unset check depends install installkernel
1023         return $_ret
1024     fi
1025 }
1026
1027 # module_install <dracut module>
1028 # execute the install() function of module-setup.sh of <dracut module>
1029 # or the "install" script, if module-setup.sh is not found
1030 module_install() {
1031     local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
1032     local _ret
1033     [[ -d $_moddir ]] || return 1
1034     if [[ ! -f $_moddir/module-setup.sh ]]; then
1035         [[ -x $_moddir/install ]] && . "$_moddir/install"
1036         return $?
1037     else
1038         unset check depends install installkernel
1039         install() { true; }
1040         . $_moddir/module-setup.sh
1041         install
1042         _ret=$?
1043         unset check depends install installkernel
1044         return $_ret
1045     fi
1046 }
1047
1048 # module_installkernel <dracut module>
1049 # execute the installkernel() function of module-setup.sh of <dracut module>
1050 # or the "installkernel" script, if module-setup.sh is not found
1051 module_installkernel() {
1052     local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
1053     local _ret
1054     [[ -d $_moddir ]] || return 1
1055     if [[ ! -f $_moddir/module-setup.sh ]]; then
1056         [[ -x $_moddir/installkernel ]] && . "$_moddir/installkernel"
1057         return $?
1058     else
1059         unset check depends install installkernel
1060         installkernel() { true; }
1061         . $_moddir/module-setup.sh
1062         installkernel
1063         _ret=$?
1064         unset check depends install installkernel
1065         return $_ret
1066     fi
1067 }
1068
1069 # check_mount <dracut module>
1070 # check_mount checks, if a dracut module is needed for the given
1071 # device and filesystem types in "${host_fs_types[@]}"
1072 check_mount() {
1073     local _mod=$1
1074     local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
1075     local _ret
1076     local _moddep
1077
1078     [ "${#host_fs_types[*]}" -le 0 ] && return 1
1079
1080     # If we are already scheduled to be loaded, no need to check again.
1081     [[ " $mods_to_load " == *\ $_mod\ * ]] && return 0
1082     [[ " $mods_checked_as_dep " == *\ $_mod\ * ]] && return 1
1083
1084     # This should never happen, but...
1085     [[ -d $_moddir ]] || return 1
1086
1087     [[ $2 ]] || mods_checked_as_dep+=" $_mod "
1088
1089     if [[ " $omit_dracutmodules " == *\ $_mod\ * ]]; then
1090         return 1
1091     fi
1092
1093     if [[ " $dracutmodules $add_dracutmodules $force_add_dracutmodules" == *\ $_mod\ * ]]; then
1094         module_check_mount $_mod; ret=$?
1095
1096         # explicit module, so also accept ret=255
1097         [[ $ret = 0 || $ret = 255 ]] || return 1
1098     else
1099         # module not in our list
1100         if [[ $dracutmodules = all ]]; then
1101             # check, if we can and should install this module
1102             module_check_mount $_mod || return 1
1103         else
1104             # skip this module
1105             return 1
1106         fi
1107     fi
1108
1109
1110     for _moddep in $(module_depends $_mod); do
1111         # handle deps as if they were manually added
1112         [[ " $add_dracutmodules " == *\ $_moddep\ * ]] || \
1113             add_dracutmodules+=" $_moddep "
1114         [[ " $force_add_dracutmodules " == *\ $_moddep\ * ]] || \
1115             force_add_dracutmodules+=" $_moddep "
1116         # if a module we depend on fail, fail also
1117         if ! check_module $_moddep; then
1118             derror "dracut module '$_mod' depends on '$_moddep', which can't be installed"
1119             return 1
1120         fi
1121     done
1122
1123     [[ " $mods_to_load " == *\ $_mod\ * ]] || \
1124         mods_to_load+=" $_mod "
1125
1126     return 0
1127 }
1128
1129 # check_module <dracut module> [<use_as_dep>]
1130 # check if a dracut module is to be used in the initramfs process
1131 # if <use_as_dep> is set, then the process also keeps track
1132 # that the modules were checked for the dependency tracking process
1133 check_module() {
1134     local _mod=$1
1135     local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
1136     local _ret
1137     local _moddep
1138     # If we are already scheduled to be loaded, no need to check again.
1139     [[ " $mods_to_load " == *\ $_mod\ * ]] && return 0
1140     [[ " $mods_checked_as_dep " == *\ $_mod\ * ]] && return 1
1141
1142     # This should never happen, but...
1143     [[ -d $_moddir ]] || return 1
1144
1145     [[ $2 ]] || mods_checked_as_dep+=" $_mod "
1146
1147     if [[ " $omit_dracutmodules " == *\ $_mod\ * ]]; then
1148         dinfo "dracut module '$_mod' will not be installed, because it's in the list to be omitted!"
1149         return 1
1150     fi
1151
1152     if [[ " $dracutmodules $add_dracutmodules $force_add_dracutmodules" == *\ $_mod\ * ]]; then
1153         if [[ " $force_add_dracutmodules " == *\ $_mod\ * ]]; then
1154             module_check $_mod 1; ret=$?
1155         else
1156             module_check $_mod 0; ret=$?
1157         fi
1158         # explicit module, so also accept ret=255
1159         [[ $ret = 0 || $ret = 255 ]] || return 1
1160     else
1161         # module not in our list
1162         if [[ $dracutmodules = all ]]; then
1163             # check, if we can and should install this module
1164             module_check $_mod || return 1
1165         else
1166             # skip this module
1167             return 1
1168         fi
1169     fi
1170
1171     for _moddep in $(module_depends $_mod); do
1172         # handle deps as if they were manually added
1173         [[ " $add_dracutmodules " == *\ $_moddep\ * ]] || \
1174             add_dracutmodules+=" $_moddep "
1175         [[ " $force_add_dracutmodules " == *\ $_moddep\ * ]] || \
1176             force_add_dracutmodules+=" $_moddep "
1177         # if a module we depend on fail, fail also
1178         if ! check_module $_moddep; then
1179             derror "dracut module '$_mod' depends on '$_moddep', which can't be installed"
1180             return 1
1181         fi
1182     done
1183
1184     [[ " $mods_to_load " == *\ $_mod\ * ]] || \
1185         mods_to_load+=" $_mod "
1186
1187     return 0
1188 }
1189
1190 # for_each_module_dir <func>
1191 # execute "<func> <dracut module> 1"
1192 for_each_module_dir() {
1193     local _modcheck
1194     local _mod
1195     local _moddir
1196     local _func
1197     _func=$1
1198     for _moddir in "$dracutbasedir/modules.d"/[0-9][0-9]*; do
1199         _mod=${_moddir##*/}; _mod=${_mod#[0-9][0-9]}
1200         $_func $_mod 1
1201     done
1202
1203     # Report any missing dracut modules, the user has specified
1204     _modcheck="$add_dracutmodules $force_add_dracutmodules"
1205     [[ $dracutmodules != all ]] && _modcheck="$m $dracutmodules"
1206     for _mod in $_modcheck; do
1207         [[ " $mods_to_load " == *\ $_mod\ * ]] && continue
1208         [[ " $omit_dracutmodules " == *\ $_mod\ * ]] && continue
1209         derror "dracut module '$_mod' cannot be found or installed."
1210     done
1211 }
1212
1213 # Install a single kernel module along with any firmware it may require.
1214 # $1 = full path to kernel module to install
1215 install_kmod_with_fw() {
1216     # no need to go further if the module is already installed
1217
1218     [[ -e "${initdir}/lib/modules/$kernel/${1##*/lib/modules/$kernel/}" ]] \
1219         && return 0
1220
1221     if [[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && [[ -e "$DRACUT_KERNEL_LAZY_HASHDIR/${1##*/}" ]]; then
1222         read ret < "$DRACUT_KERNEL_LAZY_HASHDIR/${1##*/}"
1223         return $ret
1224     fi
1225
1226     if [[ $omit_drivers ]]; then
1227         local _kmod=${1##*/}
1228         _kmod=${_kmod%.ko}
1229         _kmod=${_kmod/-/_}
1230         if [[ "$_kmod" =~ $omit_drivers ]]; then
1231             dinfo "Omitting driver $_kmod"
1232             return 0
1233         fi
1234         if [[ "${1##*/lib/modules/$kernel/}" =~ $omit_drivers ]]; then
1235             dinfo "Omitting driver $_kmod"
1236             return 0
1237         fi
1238     fi
1239
1240     if [[ $silent_omit_drivers ]]; then
1241         local _kmod=${1##*/}
1242         _kmod=${_kmod%.ko}
1243         _kmod=${_kmod/-/_}
1244         [[ "$_kmod" =~ $silent_omit_drivers ]] && return 0
1245         [[ "${1##*/lib/modules/$kernel/}" =~ $silent_omit_drivers ]] && return 0
1246     fi
1247
1248     inst_simple "$1" "/lib/modules/$kernel/${1##*/lib/modules/$kernel/}"
1249     ret=$?
1250     [[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && \
1251         [[ -d "$DRACUT_KERNEL_LAZY_HASHDIR" ]] && \
1252         echo $ret > "$DRACUT_KERNEL_LAZY_HASHDIR/${1##*/}"
1253     (($ret != 0)) && return $ret
1254
1255     local _modname=${1##*/} _fwdir _found _fw
1256     _modname=${_modname%.ko*}
1257     for _fw in $(modinfo -k $kernel -F firmware $1 2>/dev/null); do
1258         _found=''
1259         for _fwdir in $fw_dir; do
1260             if [[ -d $_fwdir && -f $_fwdir/$_fw ]]; then
1261                 inst_simple "$_fwdir/$_fw" "/lib/firmware/$_fw"
1262                 _found=yes
1263             fi
1264         done
1265         if [[ $_found != yes ]]; then
1266             if ! [[ -d $(echo /sys/module/${_modname//-/_}|{ read a b; echo $a; }) ]]; then
1267                 dinfo "Possible missing firmware \"${_fw}\" for kernel module" \
1268                     "\"${_modname}.ko\""
1269             else
1270                 dwarn "Possible missing firmware \"${_fw}\" for kernel module" \
1271                     "\"${_modname}.ko\""
1272             fi
1273         fi
1274     done
1275     return 0
1276 }
1277
1278 # Do something with all the dependencies of a kernel module.
1279 # Note that kernel modules depend on themselves using the technique we use
1280 # $1 = function to call for each dependency we find
1281 #      It will be passed the full path to the found kernel module
1282 # $2 = module to get dependencies for
1283 # rest of args = arguments to modprobe
1284 # _fderr specifies FD passed from surrounding scope
1285 for_each_kmod_dep() {
1286     local _func=$1 _kmod=$2 _cmd _modpath _options
1287     shift 2
1288     modprobe "$@" --ignore-install --show-depends $_kmod 2>&${_fderr} | (
1289         while read _cmd _modpath _options; do
1290             [[ $_cmd = insmod ]] || continue
1291             $_func ${_modpath} || exit $?
1292         done
1293     )
1294 }
1295
1296 dracut_kernel_post() {
1297     local _moddirname=${srcmods%%/lib/modules/*}
1298     local _pid
1299
1300     if [[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && [[ -f "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist" ]]; then
1301         xargs -r modprobe -a ${_moddirname+-d ${_moddirname}/} \
1302             --ignore-install --show-depends --set-version $kernel \
1303             < "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist" 2>/dev/null \
1304             | sort -u \
1305             | while read _cmd _modpath _options; do
1306             [[ $_cmd = insmod ]] || continue
1307             echo "$_modpath"
1308         done > "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist.dep"
1309
1310         (
1311             if [[ $DRACUT_INSTALL ]] && [[ -z $_moddirname ]]; then
1312                 xargs -r $DRACUT_INSTALL ${initdir+-D "$initdir"} -a < "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist.dep"
1313             else
1314                 while read _modpath; do
1315                     local _destpath=$_modpath
1316                     [[ $_moddirname ]] && _destpath=${_destpath##$_moddirname/}
1317                     _destpath=${_destpath##*/lib/modules/$kernel/}
1318                     inst_simple "$_modpath" "/lib/modules/$kernel/${_destpath}" || exit $?
1319                 done < "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist.dep"
1320             fi
1321         ) &
1322         _pid=$(jobs -p | while read a ; do printf ":$a";done)
1323         _pid=${_pid##*:}
1324
1325         if [[ $DRACUT_INSTALL ]]; then
1326             xargs -r modinfo -k $kernel -F firmware < "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist.dep" \
1327                 | while read line; do
1328                 for _fwdir in $fw_dir; do
1329                     echo $_fwdir/$line;
1330                 done;
1331             done | xargs -r $DRACUT_INSTALL ${initdir+-D "$initdir"} -a -o
1332         else
1333             for _fw in $(xargs -r modinfo -k $kernel -F firmware < "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist.dep"); do
1334                 for _fwdir in $fw_dir; do
1335                     if [[ -d $_fwdir && -f $_fwdir/$_fw ]]; then
1336                         inst_simple "$_fwdir/$_fw" "/lib/firmware/$_fw"
1337                         break
1338                     fi
1339                 done
1340             done
1341         fi
1342
1343         wait $_pid
1344     fi
1345
1346     for _f in modules.builtin.bin modules.builtin; do
1347         [[ $srcmods/$_f ]] && break
1348     done || {
1349         dfatal "No modules.builtin.bin and modules.builtin found!"
1350         return 1
1351     }
1352
1353     for _f in modules.builtin.bin modules.builtin modules.order; do
1354         [[ $srcmods/$_f ]] && inst_simple "$srcmods/$_f" "/lib/modules/$kernel/$_f"
1355     done
1356
1357     # generate module dependencies for the initrd
1358     if [[ -d $initdir/lib/modules/$kernel ]] && \
1359         ! depmod -a -b "$initdir" $kernel; then
1360         dfatal "\"depmod -a $kernel\" failed."
1361         exit 1
1362     fi
1363
1364     [[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && rm -fr -- "$DRACUT_KERNEL_LAZY_HASHDIR"
1365 }
1366
1367 module_is_host_only() {
1368     local _mod=$1
1369     _mod=${_mod##*/}
1370     _mod=${_mod%.ko}
1371
1372     [[ " $add_drivers " == *\ ${_mod}\ * ]] && return 0
1373
1374     # check if module is loaded
1375     for i in /sys/module/${_mod//-/_}; do
1376         [[ -d $i ]] && return 0
1377     done
1378
1379     # check if module is loadable on the current kernel
1380     # this covers the case, where a new module is introduced
1381     # or a module was renamed
1382     # or a module changed from builtin to a module
1383     modinfo -F filename "$_mod" &>/dev/null || return 0
1384
1385     return 1
1386 }
1387
1388 find_kernel_modules_by_path () {
1389     local _OLDIFS
1390
1391     [[ -f "$srcmods/modules.dep" ]] || return 0
1392
1393     _OLDIFS=$IFS
1394     IFS=:
1395     while read a rest; do
1396         [[ $a = */$1/* ]] || continue
1397         printf "%s\n" "$srcmods/$a"
1398     done < "$srcmods/modules.dep"
1399     IFS=$_OLDIFS
1400     return 0
1401 }
1402
1403 find_kernel_modules () {
1404     find_kernel_modules_by_path  drivers
1405 }
1406
1407 # instmods [-c [-s]] <kernel module> [<kernel module> ... ]
1408 # instmods [-c [-s]] <kernel subsystem>
1409 # install kernel modules along with all their dependencies.
1410 # <kernel subsystem> can be e.g. "=block" or "=drivers/usb/storage"
1411 instmods() {
1412     [[ $no_kernel = yes ]] && return
1413     # called [sub]functions inherit _fderr
1414     local _fderr=9
1415     local _check=no
1416     local _silent=no
1417     if [[ $1 = '-c' ]]; then
1418         _check=yes
1419         shift
1420     fi
1421
1422     if [[ $1 = '-s' ]]; then
1423         _silent=yes
1424         shift
1425     fi
1426
1427     function inst1mod() {
1428         local _ret=0 _mod="$1"
1429         case $_mod in
1430             =*)
1431                 ( [[ "$_mpargs" ]] && echo $_mpargs
1432                     find_kernel_modules_by_path "${_mod#=}" ) \
1433                         | instmods
1434                 ((_ret+=$?))
1435                 ;;
1436             --*) _mpargs+=" $_mod" ;;
1437             *)
1438                 _mod=${_mod##*/}
1439                 # if we are already installed, skip this module and go on
1440                 # to the next one.
1441                 if [[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && \
1442                     [[ -f "$DRACUT_KERNEL_LAZY_HASHDIR/${_mod%.ko}.ko" ]]; then
1443                     read _ret <"$DRACUT_KERNEL_LAZY_HASHDIR/${_mod%.ko}.ko"
1444                     return $_ret
1445                 fi
1446
1447                 _mod=${_mod/-/_}
1448                 if [[ $omit_drivers ]] && [[ "$_mod" =~ $omit_drivers ]]; then
1449                     dinfo "Omitting driver ${_mod##$srcmods}"
1450                     return 0
1451                 fi
1452
1453                 # If we are building a host-specific initramfs and this
1454                 # module is not already loaded, move on to the next one.
1455                 [[ $hostonly ]] \
1456                     && ! module_is_host_only "$_mod" \
1457                     && return 0
1458
1459                 if [[ "$_check" = "yes" ]] || ! [[ $DRACUT_KERNEL_LAZY_HASHDIR ]]; then
1460                     # We use '-d' option in modprobe only if modules prefix path
1461                     # differs from default '/'.  This allows us to use dracut with
1462                     # old version of modprobe which doesn't have '-d' option.
1463                     local _moddirname=${srcmods%%/lib/modules/*}
1464                     [[ -n ${_moddirname} ]] && _moddirname="-d ${_moddirname}/"
1465
1466                     # ok, load the module, all its dependencies, and any firmware
1467                     # it may require
1468                     for_each_kmod_dep install_kmod_with_fw $_mod \
1469                         --set-version $kernel ${_moddirname} $_mpargs
1470                     ((_ret+=$?))
1471                 else
1472                     [[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && \
1473                         echo $_mod >> "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist"
1474                 fi
1475                 ;;
1476         esac
1477         return $_ret
1478     }
1479
1480     function instmods_1() {
1481         local _mod _mpargs
1482         if (($# == 0)); then  # filenames from stdin
1483             while read _mod; do
1484                 inst1mod "${_mod%.ko*}" || {
1485                     if [[ "$_check" == "yes" ]]; then
1486                         [[ "$_silent" == "no" ]] && dfatal "Failed to install module $_mod"
1487                         return 1
1488                     fi
1489                 }
1490             done
1491         fi
1492         while (($# > 0)); do  # filenames as arguments
1493             inst1mod ${1%.ko*} || {
1494                 if [[ "$_check" == "yes" ]]; then
1495                     [[ "$_silent" == "no" ]] && dfatal "Failed to install module $1"
1496                     return 1
1497                 fi
1498             }
1499             shift
1500         done
1501         return 0
1502     }
1503
1504     local _ret _filter_not_found='FATAL: Module .* not found.'
1505     # Capture all stderr from modprobe to _fderr. We could use {var}>...
1506     # redirections, but that would make dracut require bash4 at least.
1507     eval "( instmods_1 \"\$@\" ) ${_fderr}>&1" \
1508         | while read line; do [[ "$line" =~ $_filter_not_found ]] || echo $line;done | derror
1509     _ret=$?
1510     return $_ret
1511 }
1512 # get_cpu_vendor
1513 # Only two values are returned: AMD or Intel
1514 get_cpu_vendor ()
1515 {
1516     if grep -qE AMD /proc/cpuinfo; then
1517         printf "AMD"
1518     fi
1519     if grep -qE Intel /proc/cpuinfo; then
1520         printf "Intel"
1521     fi
1522 }
1523
1524 # get_host_ucode
1525 # Get the hosts' ucode file based on the /proc/cpuinfo
1526 get_ucode_file ()
1527 {
1528     local family=`grep -E "cpu family" /proc/cpuinfo | head -1 | sed s/.*:\ //`
1529     local model=`grep -E "model" /proc/cpuinfo |grep -v name | head -1 | sed s/.*:\ //`
1530     local stepping=`grep -E "stepping" /proc/cpuinfo | head -1 | sed s/.*:\ //`
1531
1532     if [[ "$(get_cpu_vendor)" == "AMD" ]]; then
1533         # If family greater or equal than 0x15
1534         if [[ $family -ge 21 ]]; then
1535             printf "microcode_amd_fam15h.bin"
1536         else
1537             printf "microcode_amd.bin"
1538         fi
1539     fi
1540     if [[ "$(get_cpu_vendor)" == "Intel" ]]; then
1541         # The /proc/cpuinfo are in decimal.
1542         printf "%02x-%02x-%02x" ${family} ${model} ${stepping}
1543     fi
1544 }