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 if ! [[ $DRACUT_INSTALL ]]; then
  59     DRACUT_INSTALL=$(find_binary dracut-install)
  60 fi
  61
  62 if ! [[ $DRACUT_INSTALL ]] && [[ -x $dracutbasedir/dracut-install ]]; then
  63     DRACUT_INSTALL=$dracutbasedir/dracut-install
  64 fi
  65
  66 # Detect lib paths
  67 if ! [[ $libdirs ]] ; then
  68     if [[ "$(ldd /bin/sh)" == */lib64/* ]] &>/dev/null \
  69         && [[ -d /lib64 ]]; then
  70         libdirs+=" /lib64"
  71         [[ -d /usr/lib64 ]] && libdirs+=" /usr/lib64"
  72     else
  73         libdirs+=" /lib"
  74         [[ -d /usr/lib ]] && libdirs+=" /usr/lib"
  75     fi
  76     export libdirs
  77 fi
  78
  79 if ! [[ $kernel ]]; then
  80     kernel=$(uname -r)
  81     export kernel
  82 fi
  83
  84 srcmods="/lib/modules/$kernel/"
  85 [[ $drivers_dir ]] && {
  86     if vercmp "$(modprobe --version | cut -d' ' -f3)" lt 3.7; then
  87         dfatal 'To use --kmoddir option module-init-tools >= 3.7 is required.'
  88         exit 1
  89     fi
  90     srcmods="$drivers_dir"
  91 }
  92 export srcmods
  93
  94 if ! type dinfo >/dev/null 2>&1; then
  95     . "$dracutbasedir/dracut-logger.sh"
  96     dlog_init
  97 fi
  98
  99 if ! [[ $initdir ]]; then
 100     dfatal "initdir not set"
 101     exit 1
 102 fi
 103
 104 # export standard hookdirs
 105 [[ $hookdirs ]] || {
 106     hookdirs="cmdline pre-udev pre-trigger netroot "
 107     hookdirs+="initqueue initqueue/settled initqueue/online initqueue/finished initqueue/timeout "
 108     hookdirs+="pre-mount pre-pivot cleanup mount "
 109     hookdirs+="emergency shutdown-emergency pre-shutdown shutdown "
 110     export hookdirs
 111 }
 112
 113 dracut_need_initqueue() {
 114     >"$initdir/lib/dracut/need-initqueue"
 115 }
 116
 117 dracut_module_included() {
 118     [[ "$mods_to_load $modules_loaded" == *$@* ]]
 119 }
 120
 121 # Create all subdirectories for given path without creating the last element.
 122 # $1 = path
 123 mksubdirs() {
 124     [[ -e ${1%/*} ]] || mkdir -m 0755 -p -- "${1%/*}"
 125 }
 126
 127 # Version comparision function.  Assumes Linux style version scheme.
 128 # $1 = version a
 129 # $2 = comparision op (gt, ge, eq, le, lt, ne)
 130 # $3 = version b
 131 vercmp() {
 132     local _n1=${1//./ } _op=$2 _n2=${3//./ } _i _res
 133
 134     for ((_i=0; ; _i++))
 135     do
 136         if [[ ! ${_n1[_i]}${_n2[_i]} ]]; then _res=0
 137         elif ((${_n1[_i]:-0} > ${_n2[_i]:-0})); then _res=1
 138         elif ((${_n1[_i]:-0} < ${_n2[_i]:-0})); then _res=2
 139         else continue
 140         fi
 141         break
 142     done
 143
 144     case $_op in
 145         gt) ((_res == 1));;
 146         ge) ((_res != 2));;
 147         eq) ((_res == 0));;
 148         le) ((_res != 1));;
 149         lt) ((_res == 2));;
 150         ne) ((_res != 0));;
 151     esac
 152 }
 153
 154 # is_func <command>
 155 # Check whether $1 is a function.
 156 is_func() {
 157     [[ "$(type -t "$1")" = "function" ]]
 158 }
 159
 160 # Function prints global variables in format name=value line by line.
 161 # $@ = list of global variables' name
 162 print_vars() {
 163     local _var _value
 164
 165     for _var in "$@"
 166     do
 167         eval printf -v _value "%s" "\$$_var"
 168         [[ ${_value} ]] && printf '%s="%s"\n' "$_var" "$_value"
 169     done
 170 }
 171
 172 # normalize_path <path>
 173 # Prints the normalized path, where it removes any duplicated
 174 # and trailing slashes.
 175 # Example:
 176 # $ normalize_path ///test/test//
 177 # /test/test
 178 normalize_path() {
 179     shopt -q -s extglob
 180     set -- "${1//+(\/)//}"
 181     shopt -q -u extglob
 182     echo "${1%/}"
 183 }
 184
 185 # convert_abs_rel <from> <to>
 186 # Prints the relative path, when creating a symlink to <to> from <from>.
 187 # Example:
 188 # $ convert_abs_rel /usr/bin/test /bin/test-2
 189 # ../../bin/test-2
 190 # $ ln -s $(convert_abs_rel /usr/bin/test /bin/test-2) /usr/bin/test
 191 convert_abs_rel() {
 192     local __current __absolute __abssize __cursize __newpath
 193     local -i __i __level
 194
 195     set -- "$(normalize_path "$1")" "$(normalize_path "$2")"
 196
 197     # corner case #1 - self looping link
 198     [[ "$1" == "$2" ]] && { echo "${1##*/}"; return; }
 199
 200     # corner case #2 - own dir link
 201     [[ "${1%/*}" == "$2" ]] && { echo "."; return; }
 202
 203     IFS="/" __current=($1)
 204     IFS="/" __absolute=($2)
 205
 206     __abssize=${#__absolute[@]}
 207     __cursize=${#__current[@]}
 208
 209     while [[ "${__absolute[__level]}" == "${__current[__level]}" ]]
 210     do
 211         (( __level++ ))
 212         if (( __level > __abssize || __level > __cursize ))
 213         then
 214             break
 215         fi
 216     done
 217
 218     for ((__i = __level; __i < __cursize-1; __i++))
 219     do
 220         if ((__i > __level))
 221         then
 222             __newpath=$__newpath"/"
 223         fi
 224         __newpath=$__newpath".."
 225     done
 226
 227     for ((__i = __level; __i < __abssize; __i++))
 228     do
 229         if [[ -n $__newpath ]]
 230         then
 231             __newpath=$__newpath"/"
 232         fi
 233         __newpath=$__newpath${__absolute[__i]}
 234     done
 235
 236     echo "$__newpath"
 237 }
 238
 239 if [[ "$(ln --help)" == *--relative* ]]; then
 240     ln_r() {
 241         ln -sfnr "${initdir}/$1" "${initdir}/$2"
 242     }
 243 else
 244     ln_r() {
 245         local _source=$1
 246         local _dest=$2
 247         [[ -d "${_dest%/*}" ]] && _dest=$(readlink -f "${_dest%/*}")/${_dest##*/}
 248         ln -sfn -- "$(convert_abs_rel "${_dest}" "${_source}")" "${initdir}/${_dest}"
 249     }
 250 fi
 251
 252 get_persistent_dev() {
 253     local i _tmp _dev
 254
 255     _dev=$(udevadm info --query=name --name="$1" 2>/dev/null)
 256     [ -z "$_dev" ] && return
 257
 258     for i in /dev/mapper/* /dev/disk/by-uuid/* /dev/disk/by-id/*; do
 259         [[ $i == /dev/mapper/mpath* ]] && continue
 260         _tmp=$(udevadm info --query=name --name="$i" 2>/dev/null)
 261         if [ "$_tmp" = "$_dev" ]; then
 262             printf -- "%s" "$i"
 263             return
 264         fi
 265     done
 266 }
 267
 268 # get_fs_env <device>
 269 # Get and set the ID_FS_TYPE variable from udev for a device.
 270 # Example:
 271 # $ get_fs_env /dev/sda2; echo $ID_FS_TYPE
 272 # ext4
 273 get_fs_env() {
 274     local evalstr
 275     local found
 276
 277     [[ $1 ]] || return
 278     unset ID_FS_TYPE
 279     if ID_FS_TYPE=$(udevadm info --query=env --name="$1" \
 280         | { while read line; do
 281                     [[ "$line" == DEVPATH\=* ]] && found=1;
 282                     if [[ "$line" == ID_FS_TYPE\=* ]]; then
 283                         printf "%s" "${line#ID_FS_TYPE=}";
 284                         exit 0;
 285                     fi
 286             done; [[ $found ]] && exit 0; exit 1; }) ; then
 287         if [[ $ID_FS_TYPE ]]; then
 288             printf "%s" "$ID_FS_TYPE"
 289             return 0
 290         fi
 291     fi
 292
 293     # Fallback, if we don't have udev information
 294     if find_binary blkid >/dev/null; then
 295         ID_FS_TYPE=$(blkid -u filesystem -o export -- "$1" \
 296             | while read line; do
 297                 if [[ "$line" == TYPE\=* ]]; then
 298                     printf "%s" "${line#TYPE=}";
 299                     exit 0;
 300                 fi
 301                 done)
 302         if [[ $ID_FS_TYPE ]]; then
 303             printf "%s" "$ID_FS_TYPE"
 304             return 0
 305         fi
 306     fi
 307     return 1
 308 }
 309
 310 # get_maj_min <device>
 311 # Prints the major and minor of a device node.
 312 # Example:
 313 # $ get_maj_min /dev/sda2
 314 # 8:2
 315 get_maj_min() {
 316     local _maj _min
 317     read _maj _min < <(stat -L -c '%t %T' "$1" 2>/dev/null)
 318     printf "%s" "$((0x$_maj)):$((0x$_min))"
 319 }
 320
 321 # find_block_device <mountpoint>
 322 # Prints the major and minor number of the block device
 323 # for a given mountpoint.
 324 # Unless $use_fstab is set to "yes" the functions
 325 # uses /proc/self/mountinfo as the primary source of the
 326 # information and only falls back to /etc/fstab, if the mountpoint
 327 # is not found there.
 328 # Example:
 329 # $ find_block_device /usr
 330 # 8:4
 331 find_block_device() {
 332     local _majmin _dev _majmin _find_mpt
 333     _find_mpt="$1"
 334     if [[ $use_fstab != yes ]]; then
 335         [[ -d $_find_mpt/. ]]
 336         while read _majmin _dev; do
 337             if [[ -b $_dev ]]; then
 338                 if ! [[ $_majmin ]] || [[ $_majmin == 0:* ]]; then
 339                     read _majmin < <(get_maj_min $_dev)
 340                 fi
 341                 if [[ $_majmin ]]; then
 342                     echo $_majmin
 343                 else
 344                     echo $_dev
 345                 fi
 346                 return 0
 347             fi
 348             if [[ $_dev = *:* ]]; then
 349                 echo $_dev
 350                 return 0
 351             fi
 352         done < <(findmnt -e -v -n -o 'MAJ:MIN,SOURCE' --target "$_find_mpt")
 353     fi
 354     # fall back to /etc/fstab
 355
 356     while read _majmin _dev; do
 357         if ! [[ $_dev ]]; then
 358             _dev="$_majmin"
 359             unset _majmin
 360         fi
 361         if [[ -b $_dev ]]; then
 362             [[ $_majmin ]] || read _majmin < <(get_maj_min $_dev)
 363             if [[ $_majmin ]]; then
 364                 echo $_majmin
 365             else
 366                 echo $_dev
 367             fi
 368             return 0
 369         fi
 370         if [[ $_dev = *:* ]]; then
 371             echo $_dev
 372             return 0
 373         fi
 374     done < <(findmnt -e --fstab -v -n -o 'MAJ:MIN,SOURCE' --target "$_find_mpt")
 375
 376     return 1
 377 }
 378
 379 # find_mp_fstype <mountpoint>
 380 # Echo the filesystem type for a given mountpoint.
 381 # /proc/self/mountinfo is taken as the primary source of information
 382 # and /etc/fstab is used as a fallback.
 383 # No newline is appended!
 384 # Example:
 385 # $ find_mp_fstype /;echo
 386 # ext4
 387 find_mp_fstype() {
 388     local _fs
 389
 390     if [[ $use_fstab != yes ]]; then
 391         while read _fs; do
 392             [[ $_fs ]] || continue
 393             [[ $_fs = "autofs" ]] && continue
 394             echo -n $_fs
 395             return 0
 396         done < <(findmnt -e -v -n -o 'FSTYPE' --target "$1")
 397     fi
 398
 399     while read _fs; do
 400         [[ $_fs ]] || continue
 401         [[ $_fs = "autofs" ]] && continue
 402         echo -n $_fs
 403         return 0
 404     done < <(findmnt --fstab -e -v -n -o 'FSTYPE' --target "$1")
 405
 406     return 1
 407 }
 408
 409 # find_dev_fstype <device>
 410 # Echo the filesystem type for a given device.
 411 # /proc/self/mountinfo is taken as the primary source of information
 412 # and /etc/fstab is used as a fallback.
 413 # No newline is appended!
 414 # Example:
 415 # $ find_dev_fstype /dev/sda2;echo
 416 # ext4
 417 find_dev_fstype() {
 418     local _find_dev _fs
 419     _find_dev="$1"
 420     [[ "$_find_dev" = /dev* ]] || _find_dev="/dev/block/$_find_dev"
 421
 422     if [[ $use_fstab != yes ]]; then
 423         while read _fs; do
 424             [[ $_fs ]] || continue
 425             [[ $_fs = "autofs" ]] && continue
 426             echo -n $_fs
 427             return 0
 428         done < <(findmnt -e -v -n -o 'FSTYPE' --source "$_find_dev")
 429     fi
 430
 431     while read _fs; do
 432         [[ $_fs ]] || continue
 433         [[ $_fs = "autofs" ]] && continue
 434         echo -n $_fs
 435         return 0
 436     done < <(findmnt --fstab -e -v -n -o 'FSTYPE' --source "$_find_dev")
 437
 438     return 1
 439
 440 }
 441
 442 # finds the major:minor of the block device backing the root filesystem.
 443 find_root_block_device() { find_block_device /; }
 444
 445 # for_each_host_dev_fs <func>
 446 # Execute "<func> <dev> <filesystem>" for every "<dev> <fs>" pair found
 447 # in ${host_fs_types[@]}
 448 for_each_host_dev_fs()
 449 {
 450     local _func="$1"
 451     local _dev
 452     local _ret=1
 453
 454     [[ "${!host_fs_types[@]}" ]] || return 0
 455
 456     for _dev in "${!host_fs_types[@]}"; do
 457         $_func "$_dev" "${host_fs_types[$_dev]}" && _ret=0
 458     done
 459     return $_ret
 460 }
 461
 462 host_fs_all()
 463 {
 464     echo "${host_fs_types[@]}"
 465 }
 466
 467 # Walk all the slave relationships for a given block device.
 468 # Stop when our helper function returns success
 469 # $1 = function to call on every found block device
 470 # $2 = block device in major:minor format
 471 check_block_and_slaves() {
 472     local _x
 473     [[ -b /dev/block/$2 ]] || return 1 # Not a block device? So sorry.
 474     "$1" $2 && return
 475     check_vol_slaves "$@" && return 0
 476     if [[ -f /sys/dev/block/$2/../dev ]]; then
 477         check_block_and_slaves $1 $(cat "/sys/dev/block/$2/../dev") && return 0
 478     fi
 479     [[ -d /sys/dev/block/$2/slaves ]] || return 1
 480     for _x in /sys/dev/block/$2/slaves/*/dev; do
 481         [[ -f $_x ]] || continue
 482         check_block_and_slaves $1 $(cat "$_x") && return 0
 483     done
 484     return 1
 485 }
 486
 487 check_block_and_slaves_all() {
 488     local _x _ret=1
 489     [[ -b /dev/block/$2 ]] || return 1 # Not a block device? So sorry.
 490     if "$1" $2; then
 491           _ret=0
 492     fi
 493     check_vol_slaves "$@" && return 0
 494     if [[ -f /sys/dev/block/$2/../dev ]]; then
 495         check_block_and_slaves_all $1 $(cat "/sys/dev/block/$2/../dev") && _ret=0
 496     fi
 497     [[ -d /sys/dev/block/$2/slaves ]] || return 1
 498     for _x in /sys/dev/block/$2/slaves/*/dev; do
 499         [[ -f $_x ]] || continue
 500         check_block_and_slaves_all $1 $(cat "$_x") && _ret=0
 501     done
 502     return $_ret
 503 }
 504 # for_each_host_dev_and_slaves <func>
 505 # Execute "<func> <dev>" for every "<dev>" found
 506 # in ${host_devs[@]} and their slaves
 507 for_each_host_dev_and_slaves_all()
 508 {
 509     local _func="$1"
 510     local _dev
 511     local _ret=1
 512
 513     [[ "${host_devs[@]}" ]] || return 0
 514
 515     for _dev in ${host_devs[@]}; do
 516         [[ -b "$_dev" ]] || continue
 517         if check_block_and_slaves_all $_func $(get_maj_min $_dev); then
 518                _ret=0
 519         fi
 520     done
 521     return $_ret
 522 }
 523
 524 for_each_host_dev_and_slaves()
 525 {
 526     local _func="$1"
 527     local _dev
 528
 529     [[ "${host_devs[@]}" ]] || return 0
 530
 531     for _dev in ${host_devs[@]}; do
 532         [[ -b "$_dev" ]] || continue
 533         check_block_and_slaves $_func $(get_maj_min $_dev) && return 0
 534     done
 535     return 1
 536 }
 537
 538 # ugly workaround for the lvm design
 539 # There is no volume group device,
 540 # so, there are no slave devices for volume groups.
 541 # Logical volumes only have the slave devices they really live on,
 542 # but you cannot create the logical volume without the volume group.
 543 # And the volume group might be bigger than the devices the LV needs.
 544 check_vol_slaves() {
 545     local _lv _vg _pv
 546     for i in /dev/mapper/*; do
 547         _lv=$(get_maj_min $i)
 548         if [[ $_lv = $2 ]]; then
 549             _vg=$(lvm lvs --noheadings -o vg_name $i 2>/dev/null)
 550             # strip space
 551             _vg=$(echo $_vg)
 552             if [[ $_vg ]]; then
 553                 for _pv in $(lvm vgs --noheadings -o pv_name "$_vg" 2>/dev/null)
 554                 do
 555                     check_block_and_slaves $1 $(get_maj_min $_pv) && return 0
 556                 done
 557             fi
 558         fi
 559     done
 560     return 1
 561 }
 562
 563 # fs_get_option <filesystem options> <search for option>
 564 # search for a specific option in a bunch of filesystem options
 565 # and return the value
 566 fs_get_option() {
 567     local _fsopts=$1
 568     local _option=$2
 569     local OLDIFS="$IFS"
 570     IFS=,
 571     set -- $_fsopts
 572     IFS="$OLDIFS"
 573     while [ $# -gt 0 ]; do
 574         case $1 in
 575             $_option=*)
 576                 echo ${1#${_option}=}
 577                 break
 578         esac
 579         shift
 580     done
 581 }
 582
 583 if [[ $DRACUT_INSTALL ]]; then
 584     [[ $DRACUT_RESOLVE_LAZY ]] || export DRACUT_RESOLVE_DEPS=1
 585     inst_dir() {
 586         [[ -e ${initdir}/"$1" ]] && return 0  # already there
 587         $DRACUT_INSTALL ${initdir+-D "$initdir"} -d "$@"
 588         (($? != 0)) && derror $DRACUT_INSTALL ${initdir+-D "$initdir"} -d "$@" || :
 589     }
 590
 591     inst() {
 592         [[ -e ${initdir}/"${2:-$1}" ]] && return 0  # already there
 593         #dinfo "$DRACUT_INSTALL -l $@"
 594         $DRACUT_INSTALL ${initdir+-D "$initdir"} ${DRACUT_RESOLVE_DEPS+-l} ${DRACUT_FIPS_MODE+-H} "$@"
 595         (($? != 0)) && derror $DRACUT_INSTALL ${initdir+-D "$initdir"} ${DRACUT_RESOLVE_DEPS+-l} ${DRACUT_FIPS_MODE+-H} "$@" || :
 596     }
 597
 598     inst_simple() {
 599         [[ -e ${initdir}/"${2:-$1}" ]] && return 0  # already there
 600         [[ -e $1 ]] || return 1  # no source
 601         $DRACUT_INSTALL ${initdir+-D "$initdir"} "$@"
 602         (($? != 0)) && derror $DRACUT_INSTALL ${initdir+-D "$initdir"} "$@" || :
 603     }
 604
 605     inst_symlink() {
 606         [[ -e ${initdir}/"${2:-$1}" ]] && return 0  # already there
 607         [[ -L $1 ]] || return 1
 608         $DRACUT_INSTALL ${initdir+-D "$initdir"} ${DRACUT_RESOLVE_DEPS+-l}  ${DRACUT_FIPS_MODE+-H} "$@"
 609         (($? != 0)) && derror $DRACUT_INSTALL ${initdir+-D "$initdir"} ${DRACUT_RESOLVE_DEPS+-l}  ${DRACUT_FIPS_MODE+-H} "$@" || :
 610     }
 611
 612     dracut_install() {
 613         local ret
 614         #dinfo "initdir=$initdir $DRACUT_INSTALL -l $@"
 615         $DRACUT_INSTALL ${initdir+-D "$initdir"} -a ${DRACUT_RESOLVE_DEPS+-l}  ${DRACUT_FIPS_MODE+-H} "$@"
 616         ret=$?
 617         (($ret != 0)) && derror $DRACUT_INSTALL ${initdir+-D "$initdir"} -a ${DRACUT_RESOLVE_DEPS+-l}  ${DRACUT_FIPS_MODE+-H} "$@" || :
 618         return $ret
 619     }
 620
 621     inst_library() {
 622         [[ -e ${initdir}/"${2:-$1}" ]] && return 0  # already there
 623         [[ -e $1 ]] || return 1  # no source
 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_binary() {
 629         $DRACUT_INSTALL ${initdir+-D "$initdir"} ${DRACUT_RESOLVE_DEPS+-l}  ${DRACUT_FIPS_MODE+-H} "$@"
 630         (($? != 0)) && derror $DRACUT_INSTALL ${initdir+-D "$initdir"} ${DRACUT_RESOLVE_DEPS+-l}  ${DRACUT_FIPS_MODE+-H} "$@" || :
 631     }
 632
 633     inst_script() {
 634         $DRACUT_INSTALL ${initdir+-D "$initdir"} ${DRACUT_RESOLVE_DEPS+-l}  ${DRACUT_FIPS_MODE+-H} "$@"
 635         (($? != 0)) && derror $DRACUT_INSTALL ${initdir+-D "$initdir"} ${DRACUT_RESOLVE_DEPS+-l}  ${DRACUT_FIPS_MODE+-H} "$@" || :
 636     }
 637
 638 else
 639
 640     # Install a directory, keeping symlinks as on the original system.
 641     # Example: if /lib points to /lib64 on the host, "inst_dir /lib/file"
 642     # will create ${initdir}/lib64, ${initdir}/lib64/file,
 643     # and a symlink ${initdir}/lib -> lib64.
 644     inst_dir() {
 645         [[ -e ${initdir}/"$1" ]] && return 0  # already there
 646
 647         local _dir="$1" _part="${1%/*}" _file
 648         while [[ "$_part" != "${_part%/*}" ]] && ! [[ -e "${initdir}/${_part}" ]]; do
 649             _dir="$_part $_dir"
 650             _part=${_part%/*}
 651         done
 652
 653         # iterate over parent directories
 654         for _file in $_dir; do
 655             [[ -e "${initdir}/$_file" ]] && continue
 656             if [[ -L $_file ]]; then
 657                 inst_symlink "$_file"
 658             else
 659             # create directory
 660                 mkdir -m 0755 -p "${initdir}/$_file" || return 1
 661                 [[ -e "$_file" ]] && chmod --reference="$_file" "${initdir}/$_file"
 662                 chmod u+w "${initdir}/$_file"
 663             fi
 664         done
 665     }
 666
 667     # $1 = file to copy to ramdisk
 668     # $2 (optional) Name for the file on the ramdisk
 669     # Location of the image dir is assumed to be $initdir
 670     # We never overwrite the target if it exists.
 671     inst_simple() {
 672         [[ -f "$1" ]] || return 1
 673         [[ "$1" == */* ]] || return 1
 674         local _src=$1 _target="${2:-$1}"
 675
 676         [[ -L $_src ]] && { inst_symlink $_src $_target; return $?; }
 677
 678         if ! [[ -d ${initdir}/$_target ]]; then
 679             [[ -e ${initdir}/$_target ]] && return 0
 680             [[ -L ${initdir}/$_target ]] && return 0
 681             [[ -d "${initdir}/${_target%/*}" ]] || inst_dir "${_target%/*}"
 682         fi
 683         if [[ $DRACUT_FIPS_MODE ]]; then
 684             # install checksum files also
 685             if [[ -e "${_src%/*}/.${_src##*/}.hmac" ]]; then
 686                 inst "${_src%/*}/.${_src##*/}.hmac" "${_target%/*}/.${_target##*/}.hmac"
 687             fi
 688             if [[ -e "/lib/fipscheck/${_src##*/}.hmac" ]]; then
 689                 inst "/lib/fipscheck/${_src##*/}.hmac" "/lib/fipscheck/${_target##*/}.hmac"
 690             fi
 691             if [[ -e "/lib64/fipscheck/${_src##*/}.hmac" ]]; then
 692                 inst "/lib64/fipscheck/${_src##*/}.hmac" "/lib64/fipscheck/${_target##*/}.hmac"
 693             fi
 694         fi
 695         ddebug "Installing $_src"
 696         cp --reflink=auto --sparse=auto -pfL "$_src" "${initdir}/$_target"
 697     }
 698
 699     # same as above, but specialized for symlinks
 700     inst_symlink() {
 701         local _src=$1 _target=${2:-$1} _realsrc
 702         [[ "$1" == */* ]] || return 1
 703         [[ -L $1 ]] || return 1
 704         [[ -L $initdir/$_target ]] && return 0
 705         _realsrc=$(readlink -f "$_src")
 706         if ! [[ -e $initdir/$_realsrc ]]; then
 707             if [[ -d $_realsrc ]]; then
 708                 inst_dir "$_realsrc"
 709             else
 710                 inst "$_realsrc"
 711             fi
 712         fi
 713         [[ ! -e $initdir/${_target%/*} ]] && inst_dir "${_target%/*}"
 714
 715         ln_r "${_realsrc}" "${_target}"
 716     }
 717
 718     # Same as above, but specialized to handle dynamic libraries.
 719     # It handles making symlinks according to how the original library
 720     # is referenced.
 721     inst_library() {
 722         local _src="$1" _dest=${2:-$1} _lib _reallib _symlink
 723         [[ "$1" == */* ]] || return 1
 724         [[ -e $initdir/$_dest ]] && return 0
 725         if [[ -L $_src ]]; then
 726             if [[ $DRACUT_FIPS_MODE ]]; then
 727                 # install checksum files also
 728                 if [[ -e "${_src%/*}/.${_src##*/}.hmac" ]]; then
 729                     inst "${_src%/*}/.${_src##*/}.hmac" "${_dest%/*}/.${_dest##*/}.hmac"
 730                 fi
 731                 if [[ -e "/lib/fipscheck/${_src##*/}.hmac" ]]; then
 732                     inst "/lib/fipscheck/${_src##*/}.hmac" "/lib/fipscheck/${_dest##*/}.hmac"
 733                 fi
 734                 if [[ -e "/lib64/fipscheck/${_src##*/}.hmac" ]]; then
 735                     inst "/lib64/fipscheck/${_src##*/}.hmac" "/lib64/fipscheck/${_dest##*/}.hmac"
 736                 fi
 737             fi
 738             _reallib=$(readlink -f "$_src")
 739             inst_simple "$_reallib" "$_reallib"
 740             inst_dir "${_dest%/*}"
 741             ln_r "${_reallib}" "${_dest}"
 742         else
 743             inst_simple "$_src" "$_dest"
 744         fi
 745
 746         # Create additional symlinks.  See rev_symlinks description.
 747         for _symlink in $(rev_lib_symlinks $_src) $(rev_lib_symlinks $_reallib); do
 748             [[ ! -e $initdir/$_symlink ]] && {
 749                 ddebug "Creating extra symlink: $_symlink"
 750                 inst_symlink $_symlink
 751             }
 752         done
 753     }
 754
 755     # Same as above, but specialized to install binary executables.
 756     # Install binary executable, and all shared library dependencies, if any.
 757     inst_binary() {
 758         local _bin _target
 759         _bin=$(find_binary "$1") || return 1
 760         _target=${2:-$_bin}
 761         [[ -e $initdir/$_target ]] && return 0
 762         local _file _line
 763         local _so_regex='([^ ]*/lib[^/]*/[^ ]*\.so[^ ]*)'
 764         # I love bash!
 765         LC_ALL=C ldd "$_bin" 2>/dev/null | while read _line; do
 766             [[ $_line = 'not a dynamic executable' ]] && break
 767
 768             if [[ $_line =~ $_so_regex ]]; then
 769                 _file=${BASH_REMATCH[1]}
 770                 [[ -e ${initdir}/$_file ]] && continue
 771                 inst_library "$_file"
 772                 continue
 773             fi
 774
 775             if [[ $_line == *not\ found* ]]; then
 776                 dfatal "Missing a shared library required by $_bin."
 777                 dfatal "Run \"ldd $_bin\" to find out what it is."
 778                 dfatal "$_line"
 779                 dfatal "dracut cannot create an initrd."
 780                 exit 1
 781             fi
 782         done
 783         inst_simple "$_bin" "$_target"
 784     }
 785
 786     # same as above, except for shell scripts.
 787     # If your shell script does not start with shebang, it is not a shell script.
 788     inst_script() {
 789         local _bin
 790         _bin=$(find_binary "$1") || return 1
 791         shift
 792         local _line _shebang_regex
 793         read -r -n 80 _line <"$_bin"
 794         # If debug is set, clean unprintable chars to prevent messing up the term
 795         [[ $debug ]] && _line=$(echo -n "$_line" | tr -c -d '[:print:][:space:]')
 796         _shebang_regex='(#! *)(/[^ ]+).*'
 797         [[ $_line =~ $_shebang_regex ]] || return 1
 798         inst "${BASH_REMATCH[2]}" && inst_simple "$_bin" "$@"
 799     }
 800
 801     # general purpose installation function
 802     # Same args as above.
 803     inst() {
 804         local _x
 805
 806         case $# in
 807             1) ;;
 808             2) [[ ! $initdir && -d $2 ]] && export initdir=$2
 809                 [[ $initdir = $2 ]] && set $1;;
 810             3) [[ -z $initdir ]] && export initdir=$2
 811                 set $1 $3;;
 812             *) dfatal "inst only takes 1 or 2 or 3 arguments"
 813                 exit 1;;
 814         esac
 815         for _x in inst_symlink inst_script inst_binary inst_simple; do
 816             $_x "$@" && return 0
 817         done
 818         return 1
 819     }
 820
 821     # dracut_install [-o ] <file> [<file> ... ]
 822     # Install <file> to the initramfs image
 823     # -o optionally install the <file> and don't fail, if it is not there
 824     dracut_install() {
 825         local _optional=no
 826         if [[ $1 = '-o' ]]; then
 827             _optional=yes
 828             shift
 829         fi
 830         while (($# > 0)); do
 831             if ! inst "$1" ; then
 832                 if [[ $_optional = yes ]]; then
 833                     dinfo "Skipping program $1 as it cannot be found and is" \
 834                         "flagged to be optional"
 835                 else
 836                     dfatal "Failed to install $1"
 837                     exit 1
 838                 fi
 839             fi
 840             shift
 841         done
 842     }
 843
 844 fi
 845
 846 # find symlinks linked to given library file
 847 # $1 = library file
 848 # Function searches for symlinks by stripping version numbers appended to
 849 # library filename, checks if it points to the same target and finally
 850 # prints the list of symlinks to stdout.
 851 #
 852 # Example:
 853 # rev_lib_symlinks libfoo.so.8.1
 854 # output: libfoo.so.8 libfoo.so
 855 # (Only if libfoo.so.8 and libfoo.so exists on host system.)
 856 rev_lib_symlinks() {
 857     [[ ! $1 ]] && return 0
 858
 859     local fn="$1" orig="$(readlink -f "$1")" links=''
 860
 861     [[ ${fn} == *.so.* ]] || return 1
 862
 863     until [[ ${fn##*.} == so ]]; do
 864         fn="${fn%.*}"
 865         [[ -L ${fn} && $(readlink -f "${fn}") == ${orig} ]] && links+=" ${fn}"
 866     done
 867
 868     echo "${links}"
 869 }
 870
 871 # attempt to install any programs specified in a udev rule
 872 inst_rule_programs() {
 873     local _prog _bin
 874
 875     if grep -qE 'PROGRAM==?"[^ "]+' "$1"; then
 876         for _prog in $(grep -E 'PROGRAM==?"[^ "]+' "$1" | sed -r 's/.*PROGRAM==?"([^ "]+).*/\1/'); do
 877             _bin=""
 878             if [ -x ${udevdir}/$_prog ]; then
 879                 _bin=${udevdir}/$_prog
 880             elif [[ "${_prog/\$env\{/}" == "$_prog" ]]; then
 881                 _bin=$(find_binary "$_prog") || {
 882                     dinfo "Skipping program $_prog using in udev rule ${1##*/} as it cannot be found"
 883                     continue;
 884                 }
 885             fi
 886
 887             [[ $_bin ]] && dracut_install "$_bin"
 888         done
 889     fi
 890     if grep -qE 'RUN[+=]=?"[^ "]+' "$1"; then
 891         for _prog in $(grep -E 'RUN[+=]=?"[^ "]+' "$1" | sed -r 's/.*RUN[+=]=?"([^ "]+).*/\1/'); do
 892             _bin=""
 893             if [ -x ${udevdir}/$_prog ]; then
 894                 _bin=${udevdir}/$_prog
 895             elif [[ "${_prog/\$env\{/}" == "$_prog" ]] && [[ "${_prog}" != "/sbin/initqueue" ]]; then
 896                 _bin=$(find_binary "$_prog") || {
 897                     dinfo "Skipping program $_prog using in udev rule ${1##*/} as it cannot be found"
 898                     continue;
 899                 }
 900             fi
 901
 902             [[ $_bin ]] && dracut_install "$_bin"
 903         done
 904     fi
 905     if grep -qE 'IMPORT\{program\}==?"[^ "]+' "$1"; then
 906         for _prog in $(grep -E 'IMPORT\{program\}==?"[^ "]+' "$1" | sed -r 's/.*IMPORT\{program\}==?"([^ "]+).*/\1/'); do
 907             _bin=""
 908             if [ -x ${udevdir}/$_prog ]; then
 909                 _bin=${udevdir}/$_prog
 910             elif [[ "${_prog/\$env\{/}" == "$_prog" ]]; then
 911                 _bin=$(find_binary "$_prog") || {
 912                     dinfo "Skipping program $_prog using in udev rule ${1##*/} as it cannot be found"
 913                     continue;
 914                 }
 915             fi
 916
 917             [[ $_bin ]] && dracut_install "$_bin"
 918         done
 919     fi
 920 }
 921
 922 # attempt to install any programs specified in a udev rule
 923 inst_rule_group_owner() {
 924     local i
 925
 926     if grep -qE 'OWNER=?"[^ "]+' "$1"; then
 927         for i in $(grep -E 'OWNER=?"[^ "]+' "$1" | sed -r 's/.*OWNER=?"([^ "]+).*/\1/'); do
 928             if ! egrep -q "^$i:" "$initdir/etc/passwd" 2>/dev/null; then
 929                 egrep "^$i:" /etc/passwd 2>/dev/null >> "$initdir/etc/passwd"
 930             fi
 931         done
 932     fi
 933     if grep -qE 'GROUP=?"[^ "]+' "$1"; then
 934         for i in $(grep -E 'GROUP=?"[^ "]+' "$1" | sed -r 's/.*GROUP=?"([^ "]+).*/\1/'); do
 935             if ! egrep -q "^$i:" "$initdir/etc/group" 2>/dev/null; then
 936                 egrep "^$i:" /etc/group 2>/dev/null >> "$initdir/etc/group"
 937             fi
 938         done
 939     fi
 940 }
 941
 942 inst_rule_initqueue() {
 943     if grep -q -F initqueue "$1"; then
 944         dracut_need_initqueue
 945     fi
 946 }
 947
 948 # udev rules always get installed in the same place, so
 949 # create a function to install them to make life simpler.
 950 inst_rules() {
 951     local _target=/etc/udev/rules.d _rule _found
 952
 953     inst_dir "${udevdir}/rules.d"
 954     inst_dir "$_target"
 955     for _rule in "$@"; do
 956         if [ "${_rule#/}" = "$_rule" ]; then
 957             for r in ${udevdir}/rules.d /etc/udev/rules.d; do
 958                 if [[ -f $r/$_rule ]]; then
 959                     _found="$r/$_rule"
 960                     inst_rule_programs "$_found"
 961                     inst_rule_group_owner "$_found"
 962                     inst_rule_initqueue "$_found"
 963                     inst_simple "$_found"
 964                 fi
 965             done
 966         fi
 967         for r in '' ./ $dracutbasedir/rules.d/; do
 968             if [[ -f ${r}$_rule ]]; then
 969                 _found="${r}$_rule"
 970                 inst_rule_programs "$_found"
 971                 inst_rule_group_owner "$_found"
 972                 inst_rule_initqueue "$_found"
 973                 inst_simple "$_found" "$_target/${_found##*/}"
 974             fi
 975         done
 976         [[ $_found ]] || dinfo "Skipping udev rule: $_rule"
 977     done
 978 }
 979
 980 prepare_udev_rules() {
 981     [ -z "$UDEVVERSION" ] && export UDEVVERSION=$(udevadm --version)
 982
 983     for f in "$@"; do
 984         f="${initdir}/etc/udev/rules.d/$f"
 985         [ -e "$f" ] || continue
 986         while read line; do
 987             if [ "${line%%IMPORT PATH_ID}" != "$line" ]; then
 988                 if [ $UDEVVERSION -ge 174 ]; then
 989                     printf '%sIMPORT{builtin}="path_id"\n' "${line%%IMPORT PATH_ID}"
 990                 else
 991                     printf '%sIMPORT{program}="path_id %%p"\n' "${line%%IMPORT PATH_ID}"
 992                 fi
 993             elif [ "${line%%IMPORT BLKID}" != "$line" ]; then
 994                 if [ $UDEVVERSION -ge 176 ]; then
 995                     printf '%sIMPORT{builtin}="blkid"\n' "${line%%IMPORT BLKID}"
 996                 else
 997                     printf '%sIMPORT{program}="/sbin/blkid -o udev -p $tempnode"\n' "${line%%IMPORT BLKID}"
 998                 fi
 999             else
1000                 echo "$line"
1001             fi
1002         done < "${f}" > "${f}.new"
1003         mv "${f}.new" "$f"
1004     done
1005 }
1006
1007 # install function specialized for hooks
1008 # $1 = type of hook, $2 = hook priority (lower runs first), $3 = hook
1009 # All hooks should be POSIX/SuS compliant, they will be sourced by init.
1010 inst_hook() {
1011     if ! [[ -f $3 ]]; then
1012         dfatal "Cannot install a hook ($3) that does not exist."
1013         dfatal "Aborting initrd creation."
1014         exit 1
1015     elif ! [[ "$hookdirs" == *$1* ]]; then
1016         dfatal "No such hook type $1. Aborting initrd creation."
1017         exit 1
1018     fi
1019     inst_simple "$3" "/lib/dracut/hooks/${1}/${2}-${3##*/}"
1020 }
1021
1022 # install any of listed files
1023 #
1024 # If first argument is '-d' and second some destination path, first accessible
1025 # source is installed into this path, otherwise it will installed in the same
1026 # path as source.  If none of listed files was installed, function return 1.
1027 # On first successful installation it returns with 0 status.
1028 #
1029 # Example:
1030 #
1031 # inst_any -d /bin/foo /bin/bar /bin/baz
1032 #
1033 # Lets assume that /bin/baz exists, so it will be installed as /bin/foo in
1034 # initramfs.
1035 inst_any() {
1036     local to f
1037
1038     [[ $1 = '-d' ]] && to="$2" && shift 2
1039
1040     for f in "$@"; do
1041         if [[ -e $f ]]; then
1042             [[ $to ]] && inst "$f" "$to" && return 0
1043             inst "$f" && return 0
1044         fi
1045     done
1046
1047     return 1
1048 }
1049
1050
1051 # inst_libdir_file [-n <pattern>] <file> [<file>...]
1052 # Install a <file> located on a lib directory to the initramfs image
1053 # -n <pattern> install matching files
1054 inst_libdir_file() {
1055     local _files
1056     if [[ "$1" == "-n" ]]; then
1057         local _pattern=$2
1058         shift 2
1059         for _dir in $libdirs; do
1060             for _i in "$@"; do
1061                 for _f in "$_dir"/$_i; do
1062                     [[ "$_f" =~ $_pattern ]] || continue
1063                     [[ -e "$_f" ]] && _files+="$_f "
1064                 done
1065             done
1066         done
1067     else
1068         for _dir in $libdirs; do
1069             for _i in "$@"; do
1070                 for _f in "$_dir"/$_i; do
1071                     [[ -e "$_f" ]] && _files+="$_f "
1072                 done
1073             done
1074         done
1075     fi
1076     [[ $_files ]] && dracut_install $_files
1077 }
1078
1079
1080 # install function decompressing the target and handling symlinks
1081 # $@ = list of compressed (gz or bz2) files or symlinks pointing to such files
1082 #
1083 # Function install targets in the same paths inside overlay but decompressed
1084 # and without extensions (.gz, .bz2).
1085 inst_decompress() {
1086     local _src _cmd
1087
1088     for _src in $@
1089     do
1090         case ${_src} in
1091             *.gz) _cmd='gzip -f -d' ;;
1092             *.bz2) _cmd='bzip2 -d' ;;
1093             *) return 1 ;;
1094         esac
1095         inst_simple ${_src}
1096         # Decompress with chosen tool.  We assume that tool changes name e.g.
1097         # from 'name.gz' to 'name'.
1098         ${_cmd} "${initdir}${_src}"
1099     done
1100 }
1101
1102 # It's similar to above, but if file is not compressed, performs standard
1103 # install.
1104 # $@ = list of files
1105 inst_opt_decompress() {
1106     local _src
1107
1108     for _src in $@
1109     do
1110         inst_decompress "${_src}" || inst "${_src}"
1111     done
1112 }
1113
1114 # module_check <dracut module>
1115 # execute the check() function of module-setup.sh of <dracut module>
1116 # or the "check" script, if module-setup.sh is not found
1117 # "check $hostonly" is called
1118 module_check() {
1119     local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
1120     local _ret
1121     local _forced=0
1122     local _hostonly=$hostonly
1123     [ $# -eq 2 ] && _forced=$2
1124     [[ -d $_moddir ]] || return 1
1125     if [[ ! -f $_moddir/module-setup.sh ]]; then
1126         # if we do not have a check script, we are unconditionally included
1127         [[ -x $_moddir/check ]] || return 0
1128         [ $_forced -ne 0 ] && unset hostonly
1129         $_moddir/check $hostonly
1130         _ret=$?
1131     else
1132         unset check depends install installkernel
1133         check() { true; }
1134         . $_moddir/module-setup.sh
1135         is_func check || return 0
1136         [ $_forced -ne 0 ] && unset hostonly
1137         check $hostonly
1138         _ret=$?
1139         unset check depends install installkernel
1140     fi
1141     hostonly=$_hostonly
1142     return $_ret
1143 }
1144
1145 # module_check_mount <dracut module>
1146 # execute the check() function of module-setup.sh of <dracut module>
1147 # or the "check" script, if module-setup.sh is not found
1148 # "mount_needs=1 check 0" is called
1149 module_check_mount() {
1150     local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
1151     local _ret
1152     mount_needs=1
1153     [[ -d $_moddir ]] || return 1
1154     if [[ ! -f $_moddir/module-setup.sh ]]; then
1155         # if we do not have a check script, we are unconditionally included
1156         [[ -x $_moddir/check ]] || return 0
1157         mount_needs=1 $_moddir/check 0
1158         _ret=$?
1159     else
1160         unset check depends install installkernel
1161         check() { false; }
1162         . $_moddir/module-setup.sh
1163         check 0
1164         _ret=$?
1165         unset check depends install installkernel
1166     fi
1167     unset mount_needs
1168     return $_ret
1169 }
1170
1171 # module_depends <dracut module>
1172 # execute the depends() function of module-setup.sh of <dracut module>
1173 # or the "depends" script, if module-setup.sh is not found
1174 module_depends() {
1175     local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
1176     local _ret
1177     [[ -d $_moddir ]] || return 1
1178     if [[ ! -f $_moddir/module-setup.sh ]]; then
1179         # if we do not have a check script, we have no deps
1180         [[ -x $_moddir/check ]] || return 0
1181         $_moddir/check -d
1182         return $?
1183     else
1184         unset check depends install installkernel
1185         depends() { true; }
1186         . $_moddir/module-setup.sh
1187         depends
1188         _ret=$?
1189         unset check depends install installkernel
1190         return $_ret
1191     fi
1192 }
1193
1194 # module_install <dracut module>
1195 # execute the install() function of module-setup.sh of <dracut module>
1196 # or the "install" script, if module-setup.sh is not found
1197 module_install() {
1198     local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
1199     local _ret
1200     [[ -d $_moddir ]] || return 1
1201     if [[ ! -f $_moddir/module-setup.sh ]]; then
1202         [[ -x $_moddir/install ]] && . "$_moddir/install"
1203         return $?
1204     else
1205         unset check depends install installkernel
1206         install() { true; }
1207         . $_moddir/module-setup.sh
1208         install
1209         _ret=$?
1210         unset check depends install installkernel
1211         return $_ret
1212     fi
1213 }
1214
1215 # module_installkernel <dracut module>
1216 # execute the installkernel() function of module-setup.sh of <dracut module>
1217 # or the "installkernel" script, if module-setup.sh is not found
1218 module_installkernel() {
1219     local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
1220     local _ret
1221     [[ -d $_moddir ]] || return 1
1222     if [[ ! -f $_moddir/module-setup.sh ]]; then
1223         [[ -x $_moddir/installkernel ]] && . "$_moddir/installkernel"
1224         return $?
1225     else
1226         unset check depends install installkernel
1227         installkernel() { true; }
1228        . $_moddir/module-setup.sh
1229         installkernel
1230         _ret=$?
1231         unset check depends install installkernel
1232         return $_ret
1233     fi
1234 }
1235
1236 # check_mount <dracut module>
1237 # check_mount checks, if a dracut module is needed for the given
1238 # device and filesystem types in "${host_fs_types[@]}"
1239 check_mount() {
1240     local _mod=$1
1241     local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
1242     local _ret
1243     local _moddep
1244
1245     [ "${#host_fs_types[*]}" -le 0 ] && return 1
1246
1247     # If we are already scheduled to be loaded, no need to check again.
1248     [[ " $mods_to_load " == *\ $_mod\ * ]] && return 0
1249     [[ " $mods_checked_as_dep " == *\ $_mod\ * ]] && return 1
1250
1251     # This should never happen, but...
1252     [[ -d $_moddir ]] || return 1
1253
1254     [[ $2 ]] || mods_checked_as_dep+=" $_mod "
1255
1256     if [[ " $omit_dracutmodules " == *\ $_mod\ * ]]; then
1257         return 1
1258     fi
1259
1260     if [[ " $dracutmodules $add_dracutmodules $force_add_dracutmodules" == *\ $_mod\ * ]]; then
1261         module_check_mount $_mod; ret=$?
1262
1263         # explicit module, so also accept ret=255
1264         [[ $ret = 0 || $ret = 255 ]] || return 1
1265     else
1266         # module not in our list
1267         if [[ $dracutmodules = all ]]; then
1268             # check, if we can and should install this module
1269             module_check_mount $_mod || return 1
1270         else
1271             # skip this module
1272             return 1
1273         fi
1274     fi
1275
1276
1277     for _moddep in $(module_depends $_mod); do
1278         # handle deps as if they were manually added
1279         [[ " $add_dracutmodules " == *\ $_moddep\ * ]] || \
1280             add_dracutmodules+=" $_moddep "
1281         [[ " $force_add_dracutmodules " == *\ $_moddep\ * ]] || \
1282             force_add_dracutmodules+=" $_moddep "
1283         # if a module we depend on fail, fail also
1284         if ! check_module $_moddep; then
1285             derror "dracut module '$_mod' depends on '$_moddep', which can't be installed"
1286             return 1
1287         fi
1288     done
1289
1290     [[ " $mods_to_load " == *\ $_mod\ * ]] || \
1291         mods_to_load+=" $_mod "
1292
1293     return 0
1294 }
1295
1296 # check_module <dracut module> [<use_as_dep>]
1297 # check if a dracut module is to be used in the initramfs process
1298 # if <use_as_dep> is set, then the process also keeps track
1299 # that the modules were checked for the dependency tracking process
1300 check_module() {
1301     local _mod=$1
1302     local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
1303     local _ret
1304     local _moddep
1305     # If we are already scheduled to be loaded, no need to check again.
1306     [[ " $mods_to_load " == *\ $_mod\ * ]] && return 0
1307     [[ " $mods_checked_as_dep " == *\ $_mod\ * ]] && return 1
1308
1309     # This should never happen, but...
1310     [[ -d $_moddir ]] || return 1
1311
1312     [[ $2 ]] || mods_checked_as_dep+=" $_mod "
1313
1314     if [[ " $omit_dracutmodules " == *\ $_mod\ * ]]; then
1315         dinfo "dracut module '$_mod' will not be installed, because it's in the list to be omitted!"
1316         return 1
1317     fi
1318
1319     if [[ " $dracutmodules $add_dracutmodules $force_add_dracutmodules" == *\ $_mod\ * ]]; then
1320         if [[ " $force_add_dracutmodules " == *\ $_mod\ * ]]; then
1321             module_check $_mod 1; ret=$?
1322         else
1323             module_check $_mod 0; ret=$?
1324         fi
1325         # explicit module, so also accept ret=255
1326         [[ $ret = 0 || $ret = 255 ]] || return 1
1327     else
1328         # module not in our list
1329         if [[ $dracutmodules = all ]]; then
1330             # check, if we can and should install this module
1331             module_check $_mod || return 1
1332         else
1333             # skip this module
1334             return 1
1335         fi
1336     fi
1337
1338     for _moddep in $(module_depends $_mod); do
1339         # handle deps as if they were manually added
1340         [[ " $add_dracutmodules " == *\ $_moddep\ * ]] || \
1341             add_dracutmodules+=" $_moddep "
1342         [[ " $force_add_dracutmodules " == *\ $_moddep\ * ]] || \
1343             force_add_dracutmodules+=" $_moddep "
1344         # if a module we depend on fail, fail also
1345         if ! check_module $_moddep; then
1346             derror "dracut module '$_mod' depends on '$_moddep', which can't be installed"
1347             return 1
1348         fi
1349     done
1350
1351     [[ " $mods_to_load " == *\ $_mod\ * ]] || \
1352         mods_to_load+=" $_mod "
1353
1354     return 0
1355 }
1356
1357 # for_each_module_dir <func>
1358 # execute "<func> <dracut module> 1"
1359 for_each_module_dir() {
1360     local _modcheck
1361     local _mod
1362     local _moddir
1363     local _func
1364     _func=$1
1365     for _moddir in "$dracutbasedir/modules.d"/[0-9][0-9]*; do
1366         _mod=${_moddir##*/}; _mod=${_mod#[0-9][0-9]}
1367         $_func $_mod 1
1368     done
1369
1370     # Report any missing dracut modules, the user has specified
1371     _modcheck="$add_dracutmodules $force_add_dracutmodules"
1372     [[ $dracutmodules != all ]] && _modcheck="$m $dracutmodules"
1373     for _mod in $_modcheck; do
1374         [[ " $mods_to_load " == *\ $_mod\ * ]] && continue
1375         [[ " $omit_dracutmodules " == *\ $_mod\ * ]] && continue
1376         derror "dracut module '$_mod' cannot be found or installed."
1377     done
1378 }
1379
1380 # Install a single kernel module along with any firmware it may require.
1381 # $1 = full path to kernel module to install
1382 install_kmod_with_fw() {
1383     # no need to go further if the module is already installed
1384
1385     [[ -e "${initdir}/lib/modules/$kernel/${1##*/lib/modules/$kernel/}" ]] \
1386         && return 0
1387
1388     if [[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && [[ -e "$DRACUT_KERNEL_LAZY_HASHDIR/${1##*/}" ]]; then
1389         read ret < "$DRACUT_KERNEL_LAZY_HASHDIR/${1##*/}"
1390         return $ret
1391     fi
1392
1393     if [[ $omit_drivers ]]; then
1394         local _kmod=${1##*/}
1395         _kmod=${_kmod%.ko}
1396         _kmod=${_kmod/-/_}
1397         if [[ "$_kmod" =~ $omit_drivers ]]; then
1398             dinfo "Omitting driver $_kmod"
1399             return 0
1400         fi
1401         if [[ "${1##*/lib/modules/$kernel/}" =~ $omit_drivers ]]; then
1402             dinfo "Omitting driver $_kmod"
1403             return 0
1404         fi
1405     fi
1406
1407     inst_simple "$1" "/lib/modules/$kernel/${1##*/lib/modules/$kernel/}"
1408     ret=$?
1409     [[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && \
1410         [[ -d "$DRACUT_KERNEL_LAZY_HASHDIR" ]] && \
1411         echo $ret > "$DRACUT_KERNEL_LAZY_HASHDIR/${1##*/}"
1412     (($ret != 0)) && return $ret
1413
1414     local _modname=${1##*/} _fwdir _found _fw
1415     _modname=${_modname%.ko*}
1416     for _fw in $(modinfo -k $kernel -F firmware $1 2>/dev/null); do
1417         _found=''
1418         for _fwdir in $fw_dir; do
1419             if [[ -d $_fwdir && -f $_fwdir/$_fw ]]; then
1420                 inst_simple "$_fwdir/$_fw" "/lib/firmware/$_fw"
1421                 _found=yes
1422             fi
1423         done
1424         if [[ $_found != yes ]]; then
1425             if ! [[ -d $(echo /sys/module/${_modname//-/_}|{ read a b; echo $a; }) ]]; then
1426                 dinfo "Possible missing firmware \"${_fw}\" for kernel module" \
1427                     "\"${_modname}.ko\""
1428             else
1429                 dwarn "Possible missing firmware \"${_fw}\" for kernel module" \
1430                     "\"${_modname}.ko\""
1431             fi
1432         fi
1433     done
1434     return 0
1435 }
1436
1437 # Do something with all the dependencies of a kernel module.
1438 # Note that kernel modules depend on themselves using the technique we use
1439 # $1 = function to call for each dependency we find
1440 #      It will be passed the full path to the found kernel module
1441 # $2 = module to get dependencies for
1442 # rest of args = arguments to modprobe
1443 # _fderr specifies FD passed from surrounding scope
1444 for_each_kmod_dep() {
1445     local _func=$1 _kmod=$2 _cmd _modpath _options
1446     shift 2
1447     modprobe "$@" --ignore-install --show-depends $_kmod 2>&${_fderr} | (
1448         while read _cmd _modpath _options; do
1449             [[ $_cmd = insmod ]] || continue
1450             $_func ${_modpath} || exit $?
1451         done
1452     )
1453 }
1454
1455 dracut_kernel_post() {
1456     local _moddirname=${srcmods%%/lib/modules/*}
1457     local _pid
1458
1459     if [[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && [[ -f "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist" ]]; then
1460         xargs -r modprobe -a ${_moddirname+-d ${_moddirname}/} \
1461             --ignore-install --show-depends --set-version $kernel \
1462             < "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist" 2>/dev/null \
1463             | sort -u \
1464             | while read _cmd _modpath _options; do
1465             [[ $_cmd = insmod ]] || continue
1466             echo "$_modpath"
1467         done > "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist.dep"
1468
1469         (
1470             if [[ $DRACUT_INSTALL ]] && [[ -z $_moddirname ]]; then
1471                 xargs -r $DRACUT_INSTALL ${initdir+-D "$initdir"} -a < "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist.dep"
1472             else
1473                 while read _modpath; do
1474                     local _destpath=$_modpath
1475                     [[ $_moddirname ]] && _destpath=${_destpath##$_moddirname/}
1476                     _destpath=${_destpath##*/lib/modules/$kernel/}
1477                     inst_simple "$_modpath" "/lib/modules/$kernel/${_destpath}" || exit $?
1478                 done < "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist.dep"
1479             fi
1480         ) &
1481         while read a ; do _pid=$a;done < <(jobs -p)
1482
1483         if [[ $DRACUT_INSTALL ]]; then
1484             xargs -r modinfo -k $kernel -F firmware < "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist.dep" \
1485                 | while read line; do
1486                 for _fwdir in $fw_dir; do
1487                     echo $_fwdir/$line;
1488                 done;
1489             done | xargs -r $DRACUT_INSTALL ${initdir+-D "$initdir"} -a -o
1490         else
1491             for _fw in $(xargs -r modinfo -k $kernel -F firmware < "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist.dep"); do
1492                 for _fwdir in $fw_dir; do
1493                     if [[ -d $_fwdir && -f $_fwdir/$_fw ]]; then
1494                         inst_simple "$_fwdir/$_fw" "/lib/firmware/$_fw"
1495                         break
1496                     fi
1497                 done
1498             done
1499         fi
1500
1501         wait $_pid
1502     fi
1503
1504     for _f in modules.builtin.bin modules.builtin; do
1505         [[ $srcmods/$_f ]] && break
1506     done || {
1507         dfatal "No modules.builtin.bin and modules.builtin found!"
1508         return 1
1509     }
1510
1511     for _f in modules.builtin.bin modules.builtin modules.order; do
1512         [[ $srcmods/$_f ]] && inst_simple "$srcmods/$_f" "/lib/modules/$kernel/$_f"
1513     done
1514
1515     # generate module dependencies for the initrd
1516     if [[ -d $initdir/lib/modules/$kernel ]] && \
1517         ! depmod -a -b "$initdir" $kernel; then
1518         dfatal "\"depmod -a $kernel\" failed."
1519         exit 1
1520     fi
1521
1522     [[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && rm -fr -- "$DRACUT_KERNEL_LAZY_HASHDIR"
1523 }
1524
1525 module_is_host_only() { (
1526     local _mod=$1
1527     _mod=${_mod##*/}
1528     _mod=${_mod%.ko}
1529
1530     [[ " $add_drivers " == *\ ${_mod}\ * ]] && return 0
1531
1532     # check if module is loaded
1533     for i in /sys/module/${_mod//-/_}; do
1534         [[ -d $i ]] && return 0
1535     done
1536
1537     # check if module is loadable on the current kernel
1538     # this covers the case, where a new module is introduced
1539     # or a module was renamed
1540     # or a module changed from builtin to a module
1541     modinfo -F filename "$_mod" &>/dev/null || return 0
1542
1543     return 1
1544     )
1545 }
1546
1547 find_kernel_modules_by_path () {
1548     local _OLDIFS
1549
1550     [[ -f "$srcmods/modules.dep" ]] || return 0
1551
1552     _OLDIFS=$IFS
1553     IFS=:
1554     while read a rest; do
1555         [[ $a = */$1/* ]] || continue
1556         printf "%s\n" "$srcmods/$a"
1557     done < "$srcmods/modules.dep"
1558     IFS=$_OLDIFS
1559     return 0
1560 }
1561
1562 find_kernel_modules () {
1563     find_kernel_modules_by_path  drivers
1564 }
1565
1566 # instmods [-c [-s]] <kernel module> [<kernel module> ... ]
1567 # instmods [-c [-s]] <kernel subsystem>
1568 # install kernel modules along with all their dependencies.
1569 # <kernel subsystem> can be e.g. "=block" or "=drivers/usb/storage"
1570 instmods() {
1571     [[ $no_kernel = yes ]] && return
1572     # called [sub]functions inherit _fderr
1573     local _fderr=9
1574     local _check=no
1575     local _silent=no
1576     if [[ $1 = '-c' ]]; then
1577         _check=yes
1578         shift
1579     fi
1580
1581     if [[ $1 = '-s' ]]; then
1582         _silent=yes
1583         shift
1584     fi
1585
1586     function inst1mod() {
1587         local _ret=0 _mod="$1"
1588         case $_mod in
1589             =*)
1590                 ( [[ "$_mpargs" ]] && echo $_mpargs
1591                     find_kernel_modules_by_path "${_mod#=}" ) \
1592                         | instmods
1593                 ((_ret+=$?))
1594                 ;;
1595             --*) _mpargs+=" $_mod" ;;
1596             *)
1597                 _mod=${_mod##*/}
1598                 # if we are already installed, skip this module and go on
1599                 # to the next one.
1600                 if [[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && \
1601                     [[ -f "$DRACUT_KERNEL_LAZY_HASHDIR/${_mod%.ko}.ko" ]]; then
1602                     read _ret <"$DRACUT_KERNEL_LAZY_HASHDIR/${_mod%.ko}.ko"
1603                     return $_ret
1604                 fi
1605
1606                 if [[ $omit_drivers ]] && [[ "$1" =~ $omit_drivers ]]; then
1607                     dinfo "Omitting driver ${_mod##$srcmods}"
1608                     return 0
1609                 fi
1610
1611                 # If we are building a host-specific initramfs and this
1612                 # module is not already loaded, move on to the next one.
1613                 [[ $hostonly ]] \
1614                     && ! module_is_host_only "$_mod" \
1615                     && return 0
1616
1617                 if [[ "$_check" = "yes" ]] || ! [[ $DRACUT_KERNEL_LAZY_HASHDIR ]]; then
1618                     # We use '-d' option in modprobe only if modules prefix path
1619                     # differs from default '/'.  This allows us to use dracut with
1620                     # old version of modprobe which doesn't have '-d' option.
1621                     local _moddirname=${srcmods%%/lib/modules/*}
1622                     [[ -n ${_moddirname} ]] && _moddirname="-d ${_moddirname}/"
1623
1624                     # ok, load the module, all its dependencies, and any firmware
1625                     # it may require
1626                     for_each_kmod_dep install_kmod_with_fw $_mod \
1627                         --set-version $kernel ${_moddirname} $_mpargs
1628                     ((_ret+=$?))
1629                 else
1630                     [[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && \
1631                         echo $_mod >> "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist"
1632                 fi
1633                 ;;
1634         esac
1635         return $_ret
1636     }
1637
1638     function instmods_1() {
1639         local _mod _mpargs
1640         if (($# == 0)); then  # filenames from stdin
1641             while read _mod; do
1642                 inst1mod "${_mod%.ko*}" || {
1643                     if [[ "$_check" == "yes" ]]; then
1644                         [[ "$_silent" == "no" ]] && dfatal "Failed to install module $_mod"
1645                         return 1
1646                     fi
1647                 }
1648             done
1649         fi
1650         while (($# > 0)); do  # filenames as arguments
1651             inst1mod ${1%.ko*} || {
1652                 if [[ "$_check" == "yes" ]]; then
1653                     [[ "$_silent" == "no" ]] && dfatal "Failed to install module $1"
1654                     return 1
1655                 fi
1656             }
1657             shift
1658         done
1659         return 0
1660     }
1661
1662     local _ret _filter_not_found='FATAL: Module .* not found.'
1663     # Capture all stderr from modprobe to _fderr. We could use {var}>...
1664     # redirections, but that would make dracut require bash4 at least.
1665     eval "( instmods_1 \"\$@\" ) ${_fderr}>&1" \
1666     | while read line; do [[ "$line" =~ $_filter_not_found ]] || echo $line;done | derror
1667     _ret=$?
1668     return $_ret
1669 }
1670 # get_cpu_vendor
1671 # Only two values are returned: AMD or Intel
1672 get_cpu_vendor ()
1673 {
1674     if grep -qE AMD /proc/cpuinfo; then
1675         printf "AMD"
1676     fi
1677     if grep -qE Intel /proc/cpuinfo; then
1678         printf "Intel"
1679     fi
1680 }
1681
1682 # get_host_ucode
1683 # Get the hosts' ucode file based on the /proc/cpuinfo
1684 get_ucode_file ()
1685 {
1686     local family=`grep -E "cpu family" /proc/cpuinfo | head -1 | sed s/.*:\ //`
1687     local model=`grep -E "model" /proc/cpuinfo |grep -v name | head -1 | sed s/.*:\ //`
1688     local stepping=`grep -E "stepping" /proc/cpuinfo | head -1 | sed s/.*:\ //`
1689
1690     if [[ "$(get_cpu_vendor)" == "AMD" ]]; then
1691         # If family greater or equal than 0x15
1692         if [[ $family -ge 21 ]]; then
1693             printf "microcode_amd_fam15h.bin"
1694         else
1695             printf "microcode_amd.bin"
1696         fi
1697     fi
1698     if [[ "$(get_cpu_vendor)" == "Intel" ]]; then
1699         # The /proc/cpuinfo are in decimal.
1700         printf "%02x-%02x-%02x" ${family} ${model} ${stepping}
1701     fi
1702 }