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             printf "%s\n" ${d%/*};
  66         done
  67     ); do
  68         a["$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 -- "${1//+(\/)//}"
 192     shopt -q -u extglob
 193     printf "%s\n" "${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" == "$2" ]] && { printf "%s\n" "${1##*/}"; return; }
 210
 211     # corner case #2 - own dir link
 212     [[ "${1%/*}" == "$2" ]] && { printf ".\n"; 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     printf "%s\n" "$__newpath"
 248 }
 249
 250 if [[ "$(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 \
 307         /dev/mapper/* \
 308         /dev/disk/${persistent_policy:-by-uuid}/* \
 309         /dev/disk/by-uuid/* \
 310         /dev/disk/by-label/* \
 311         /dev/disk/by-partuuid/* \
 312         /dev/disk/by-partlabel/* \
 313         /dev/disk/by-id/* \
 314         /dev/disk/by-path/* \
 315         ; do
 316         [[ -e "$i" ]] || continue
 317         [[ $i == /dev/mapper/control ]] && continue
 318         [[ $i == /dev/mapper/mpath* ]] && continue
 319         _tmp=$(get_maj_min "$i")
 320         if [ "$_tmp" = "$_dev" ]; then
 321             printf -- "%s" "$i"
 322             return
 323         fi
 324     done
 325 }
 326
 327 expand_persistent_dev() {
 328     local _dev=$1
 329
 330     case "$_dev" in
 331         LABEL=*)
 332             _dev="/dev/disk/by-label/${_dev#LABEL=}"
 333             ;;
 334         UUID=*)
 335             _dev="${_dev#UUID=}"
 336             _dev="${_dev,,}"
 337             _dev="/dev/disk/by-uuid/${_dev}"
 338             ;;
 339         PARTUUID=*)
 340             _dev="${_dev#PARTUUID=}"
 341             _dev="${_dev,,}"
 342             _dev="/dev/disk/by-partuuid/${_dev}"
 343             ;;
 344         PARTLABEL=*)
 345             _dev="/dev/disk/by-partlabel/${_dev#PARTLABEL=}"
 346             ;;
 347     esac
 348     printf "%s" "$_dev"
 349 }
 350
 351 shorten_persistent_dev() {
 352     local _dev="$1"
 353     case "$_dev" in
 354         /dev/disk/by-uuid/*)
 355             printf "%s" "UUID=${_dev##*/}";;
 356         /dev/disk/by-label/*)
 357             printf "%s" "LABEL=${_dev##*/}";;
 358         /dev/disk/by-partuuid/*)
 359             printf "%s" "PARTUUID=${_dev##*/}";;
 360         /dev/disk/by-partlabel/*)
 361             printf "%s" "PARTLABEL=${_dev##*/}";;
 362         *)
 363             printf "%s" "$_dev";;
 364     esac
 365 }
 366
 367 # find_block_device <mountpoint>
 368 # Prints the major and minor number of the block device
 369 # for a given mountpoint.
 370 # Unless $use_fstab is set to "yes" the functions
 371 # uses /proc/self/mountinfo as the primary source of the
 372 # information and only falls back to /etc/fstab, if the mountpoint
 373 # is not found there.
 374 # Example:
 375 # $ find_block_device /usr
 376 # 8:4
 377 find_block_device() {
 378     local _majmin _dev _majmin _find_mpt
 379     _find_mpt="$1"
 380     if [[ $use_fstab != yes ]]; then
 381         [[ -d $_find_mpt/. ]]
 382         findmnt -e -v -n -o 'MAJ:MIN,SOURCE' --target "$_find_mpt" | { \
 383             while read _majmin _dev; do
 384                 if [[ -b $_dev ]]; then
 385                     if ! [[ $_majmin ]] || [[ $_majmin == 0:* ]]; then
 386                         _majmin=$(get_maj_min $_dev)
 387                     fi
 388                     if [[ $_majmin ]]; then
 389                         printf "%s\n" "$_majmin"
 390                     else
 391                         printf "%s\n" "$_dev"
 392                     fi
 393                     return 0
 394                 fi
 395                 if [[ $_dev = *:* ]]; then
 396                     printf "%s\n" "$_dev"
 397                     return 0
 398                 fi
 399             done; return 1; } && return 0
 400     fi
 401     # fall back to /etc/fstab
 402
 403     findmnt -e --fstab -v -n -o 'MAJ:MIN,SOURCE' --target "$_find_mpt" | { \
 404         while read _majmin _dev; do
 405             if ! [[ $_dev ]]; then
 406                 _dev="$_majmin"
 407                 unset _majmin
 408             fi
 409             if [[ -b $_dev ]]; then
 410                 [[ $_majmin ]] || _majmin=$(get_maj_min $_dev)
 411                 if [[ $_majmin ]]; then
 412                     printf "%s\n" "$_majmin"
 413                 else
 414                     printf "%s\n" "$_dev"
 415                 fi
 416                 return 0
 417             fi
 418             if [[ $_dev = *:* ]]; then
 419                 printf "%s\n" "$_dev"
 420                 return 0
 421             fi
 422         done; return 1; } && return 0
 423
 424     return 1
 425 }
 426
 427 # find_mp_fstype <mountpoint>
 428 # Echo the filesystem type for a given mountpoint.
 429 # /proc/self/mountinfo is taken as the primary source of information
 430 # and /etc/fstab is used as a fallback.
 431 # No newline is appended!
 432 # Example:
 433 # $ find_mp_fstype /;echo
 434 # ext4
 435 find_mp_fstype() {
 436     local _fs
 437
 438     if [[ $use_fstab != yes ]]; then
 439         findmnt -e -v -n -o 'FSTYPE' --target "$1" | { \
 440             while read _fs; do
 441                 [[ $_fs ]] || continue
 442                 [[ $_fs = "autofs" ]] && continue
 443                 printf "%s" "$_fs"
 444                 return 0
 445             done; return 1; } && return 0
 446     fi
 447
 448     findmnt --fstab -e -v -n -o 'FSTYPE' --target "$1" | { \
 449         while read _fs; do
 450             [[ $_fs ]] || continue
 451             [[ $_fs = "autofs" ]] && continue
 452             printf "%s" "$_fs"
 453             return 0
 454         done; return 1; } && return 0
 455
 456     return 1
 457 }
 458
 459 # find_dev_fstype <device>
 460 # Echo the filesystem type for a given device.
 461 # /proc/self/mountinfo is taken as the primary source of information
 462 # and /etc/fstab is used as a fallback.
 463 # No newline is appended!
 464 # Example:
 465 # $ find_dev_fstype /dev/sda2;echo
 466 # ext4
 467 find_dev_fstype() {
 468     local _find_dev _fs
 469     _find_dev="$1"
 470     if ! [[ "$_find_dev" = /dev* ]]; then
 471         [[ -b "/dev/block/$_find_dev" ]] && _find_dev="/dev/block/$_find_dev"
 472     fi
 473
 474     if [[ $use_fstab != yes ]]; then
 475         findmnt -e -v -n -o 'FSTYPE' --source "$_find_dev" | { \
 476             while read _fs; do
 477                 [[ $_fs ]] || continue
 478                 [[ $_fs = "autofs" ]] && continue
 479                 printf "%s" "$_fs"
 480                 return 0
 481             done; return 1; } && return 0
 482     fi
 483
 484     findmnt --fstab -e -v -n -o 'FSTYPE' --source "$_find_dev" | { \
 485         while read _fs; do
 486             [[ $_fs ]] || continue
 487             [[ $_fs = "autofs" ]] && continue
 488             printf "%s" "$_fs"
 489             return 0
 490         done; return 1; } && return 0
 491
 492     return 1
 493 }
 494
 495 # find_mp_fsopts <mountpoint>
 496 # Echo the filesystem options for a given mountpoint.
 497 # /proc/self/mountinfo is taken as the primary source of information
 498 # and /etc/fstab is used as a fallback.
 499 # No newline is appended!
 500 # Example:
 501 # $ find_mp_fsopts /;echo
 502 # rw,relatime,discard,data=ordered
 503 find_mp_fsopts() {
 504     if [[ $use_fstab != yes ]]; then
 505         findmnt -e -v -n -o 'OPTIONS' --target "$1" 2>/dev/null && return 0
 506     fi
 507
 508     findmnt --fstab -e -v -n -o 'OPTIONS' --target "$1"
 509 }
 510
 511 # find_dev_fsopts <device>
 512 # Echo the filesystem options for a given device.
 513 # /proc/self/mountinfo is taken as the primary source of information
 514 # and /etc/fstab is used as a fallback.
 515 # Example:
 516 # $ find_dev_fsopts /dev/sda2
 517 # rw,relatime,discard,data=ordered
 518 find_dev_fsopts() {
 519     local _find_dev _opts
 520     _find_dev="$1"
 521     if ! [[ "$_find_dev" = /dev* ]]; then
 522         [[ -b "/dev/block/$_find_dev" ]] && _find_dev="/dev/block/$_find_dev"
 523     fi
 524
 525     if [[ $use_fstab != yes ]]; then
 526         findmnt -e -v -n -o 'OPTIONS' --source "$_find_dev" 2>/dev/null && return 0
 527     fi
 528
 529     findmnt --fstab -e -v -n -o 'OPTIONS' --source "$_find_dev"
 530 }
 531
 532
 533 # finds the major:minor of the block device backing the root filesystem.
 534 find_root_block_device() { find_block_device /; }
 535
 536 # for_each_host_dev_fs <func>
 537 # Execute "<func> <dev> <filesystem>" for every "<dev> <fs>" pair found
 538 # in ${host_fs_types[@]}
 539 for_each_host_dev_fs()
 540 {
 541     local _func="$1"
 542     local _dev
 543     local _ret=1
 544
 545     [[ "${!host_fs_types[@]}" ]] || return 0
 546
 547     for _dev in "${!host_fs_types[@]}"; do
 548         $_func "$_dev" "${host_fs_types[$_dev]}" && _ret=0
 549     done
 550     return $_ret
 551 }
 552
 553 host_fs_all()
 554 {
 555     printf "%s\n" "${host_fs_types[@]}"
 556 }
 557
 558 # Walk all the slave relationships for a given block device.
 559 # Stop when our helper function returns success
 560 # $1 = function to call on every found block device
 561 # $2 = block device in major:minor format
 562 check_block_and_slaves() {
 563     local _x
 564     [[ -b /dev/block/$2 ]] || return 1 # Not a block device? So sorry.
 565     "$1" $2 && return
 566     check_vol_slaves "$@" && return 0
 567     if [[ -f /sys/dev/block/$2/../dev ]]; then
 568         check_block_and_slaves $1 $(<"/sys/dev/block/$2/../dev") && return 0
 569     fi
 570     [[ -d /sys/dev/block/$2/slaves ]] || return 1
 571     for _x in /sys/dev/block/$2/slaves/*/dev; do
 572         [[ -f $_x ]] || continue
 573         check_block_and_slaves $1 $(<"$_x") && return 0
 574     done
 575     return 1
 576 }
 577
 578 check_block_and_slaves_all() {
 579     local _x _ret=1
 580     [[ -b /dev/block/$2 ]] || return 1 # Not a block device? So sorry.
 581     if "$1" $2; then
 582         _ret=0
 583     fi
 584     check_vol_slaves "$@" && return 0
 585     if [[ -f /sys/dev/block/$2/../dev ]]; then
 586         check_block_and_slaves_all $1 $(<"/sys/dev/block/$2/../dev") && _ret=0
 587     fi
 588     [[ -d /sys/dev/block/$2/slaves ]] || return 1
 589     for _x in /sys/dev/block/$2/slaves/*/dev; do
 590         [[ -f $_x ]] || continue
 591         check_block_and_slaves_all $1 $(<"$_x") && _ret=0
 592     done
 593     return $_ret
 594 }
 595 # for_each_host_dev_and_slaves <func>
 596 # Execute "<func> <dev>" for every "<dev>" found
 597 # in ${host_devs[@]} and their slaves
 598 for_each_host_dev_and_slaves_all()
 599 {
 600     local _func="$1"
 601     local _dev
 602     local _ret=1
 603
 604     [[ "${host_devs[@]}" ]] || return 0
 605
 606     for _dev in ${host_devs[@]}; do
 607         [[ -b "$_dev" ]] || continue
 608         if check_block_and_slaves_all $_func $(get_maj_min $_dev); then
 609             _ret=0
 610         fi
 611     done
 612     return $_ret
 613 }
 614
 615 for_each_host_dev_and_slaves()
 616 {
 617     local _func="$1"
 618     local _dev
 619
 620     [[ "${host_devs[@]}" ]] || return 0
 621
 622     for _dev in ${host_devs[@]}; do
 623         [[ -b "$_dev" ]] || continue
 624         check_block_and_slaves $_func $(get_maj_min $_dev) && return 0
 625     done
 626     return 1
 627 }
 628
 629 # ugly workaround for the lvm design
 630 # There is no volume group device,
 631 # so, there are no slave devices for volume groups.
 632 # Logical volumes only have the slave devices they really live on,
 633 # but you cannot create the logical volume without the volume group.
 634 # And the volume group might be bigger than the devices the LV needs.
 635 check_vol_slaves() {
 636     local _lv _vg _pv
 637     for i in /dev/mapper/*; do
 638         [[ $i == /dev/mapper/control ]] && continue
 639         _lv=$(get_maj_min $i)
 640         if [[ $_lv = $2 ]]; then
 641             _vg=$(lvm lvs --noheadings -o vg_name $i 2>/dev/null)
 642             # strip space
 643             _vg=$(printf "%s\n" "$_vg")
 644             if [[ $_vg ]]; then
 645                 for _pv in $(lvm vgs --noheadings -o pv_name "$_vg" 2>/dev/null)
 646                 do
 647                     check_block_and_slaves $1 $(get_maj_min $_pv) && return 0
 648                 done
 649             fi
 650         fi
 651     done
 652     return 1
 653 }
 654
 655 # fs_get_option <filesystem options> <search for option>
 656 # search for a specific option in a bunch of filesystem options
 657 # and return the value
 658 fs_get_option() {
 659     local _fsopts=$1
 660     local _option=$2
 661     local OLDIFS="$IFS"
 662     IFS=,
 663     set -- $_fsopts
 664     IFS="$OLDIFS"
 665     while [ $# -gt 0 ]; do
 666         case $1 in
 667             $_option=*)
 668                 echo ${1#${_option}=}
 669                 break
 670         esac
 671         shift
 672     done
 673 }
 674
 675
 676 if ! [[ $DRACUT_INSTALL ]]; then
 677     DRACUT_INSTALL=$(find_binary dracut-install)
 678 fi
 679
 680 if ! [[ $DRACUT_INSTALL ]] && [[ -x $dracutbasedir/dracut-install ]]; then
 681     DRACUT_INSTALL=$dracutbasedir/dracut-install
 682 fi
 683
 684 if ! [[ -x $DRACUT_INSTALL ]]; then
 685     dfatal "dracut-install not found!"
 686     exit 10
 687 fi
 688
 689 [[ $DRACUT_RESOLVE_LAZY ]] || export DRACUT_RESOLVE_DEPS=1
 690 inst_dir() {
 691     [[ -e ${initdir}/"$1" ]] && return 0  # already there
 692     $DRACUT_INSTALL ${initdir:+-D "$initdir"} -d "$@"
 693     (($? != 0)) && derror $DRACUT_INSTALL ${initdir:+-D "$initdir"} -d "$@" || :
 694 }
 695
 696 inst() {
 697     [[ -e ${initdir}/"${2:-$1}" ]] && return 0  # already there
 698         #dinfo "$DRACUT_INSTALL -l $@"
 699     $DRACUT_INSTALL ${initdir:+-D "$initdir"} ${DRACUT_RESOLVE_DEPS:+-l} ${DRACUT_FIPS_MODE:+-H} "$@"
 700     (($? != 0)) && derror $DRACUT_INSTALL ${initdir:+-D "$initdir"} ${DRACUT_RESOLVE_DEPS:+-l} ${DRACUT_FIPS_MODE:+-H} "$@" || :
 701 }
 702
 703 inst_simple() {
 704     [[ -e ${initdir}/"${2:-$1}" ]] && return 0  # already there
 705     [[ -e $1 ]] || return 1  # no source
 706     $DRACUT_INSTALL ${initdir:+-D "$initdir"} "$@"
 707     (($? != 0)) && derror $DRACUT_INSTALL ${initdir:+-D "$initdir"} "$@" || :
 708 }
 709
 710 inst_symlink() {
 711     [[ -e ${initdir}/"${2:-$1}" ]] && return 0  # already there
 712     [[ -L $1 ]] || return 1
 713     $DRACUT_INSTALL ${initdir:+-D "$initdir"} ${DRACUT_RESOLVE_DEPS:+-l}  ${DRACUT_FIPS_MODE:+-H} "$@"
 714     (($? != 0)) && derror $DRACUT_INSTALL ${initdir:+-D "$initdir"} ${DRACUT_RESOLVE_DEPS:+-l}  ${DRACUT_FIPS_MODE:+-H} "$@" || :
 715 }
 716
 717 inst_multiple() {
 718     local ret
 719         #dinfo "initdir=$initdir $DRACUT_INSTALL -l $@"
 720     $DRACUT_INSTALL ${initdir:+-D "$initdir"} -a ${DRACUT_RESOLVE_DEPS:+-l}  ${DRACUT_FIPS_MODE:+-H} "$@"
 721     ret=$?
 722     (($ret != 0)) && derror $DRACUT_INSTALL ${initdir:+-D "$initdir"} -a ${DRACUT_RESOLVE_DEPS:+-l}  ${DRACUT_FIPS_MODE:+-H} "$@" || :
 723     return $ret
 724 }
 725
 726 dracut_install() {
 727     inst_multiple "$@"
 728 }
 729
 730 inst_library() {
 731     [[ -e ${initdir}/"${2:-$1}" ]] && return 0  # already there
 732     [[ -e $1 ]] || return 1  # no source
 733     $DRACUT_INSTALL ${initdir:+-D "$initdir"} ${DRACUT_RESOLVE_DEPS:+-l}  ${DRACUT_FIPS_MODE:+-H} "$@"
 734     (($? != 0)) && derror $DRACUT_INSTALL ${initdir:+-D "$initdir"} ${DRACUT_RESOLVE_DEPS:+-l}  ${DRACUT_FIPS_MODE:+-H} "$@" || :
 735 }
 736
 737 inst_binary() {
 738     $DRACUT_INSTALL ${initdir:+-D "$initdir"} ${DRACUT_RESOLVE_DEPS:+-l}  ${DRACUT_FIPS_MODE:+-H} "$@"
 739     (($? != 0)) && derror $DRACUT_INSTALL ${initdir:+-D "$initdir"} ${DRACUT_RESOLVE_DEPS:+-l}  ${DRACUT_FIPS_MODE:+-H} "$@" || :
 740 }
 741
 742 inst_script() {
 743     $DRACUT_INSTALL ${initdir:+-D "$initdir"} ${DRACUT_RESOLVE_DEPS:+-l}  ${DRACUT_FIPS_MODE:+-H} "$@"
 744     (($? != 0)) && derror $DRACUT_INSTALL ${initdir:+-D "$initdir"} ${DRACUT_RESOLVE_DEPS:+-l}  ${DRACUT_FIPS_MODE:+-H} "$@" || :
 745 }
 746
 747 # find symlinks linked to given library file
 748 # $1 = library file
 749 # Function searches for symlinks by stripping version numbers appended to
 750 # library filename, checks if it points to the same target and finally
 751 # prints the list of symlinks to stdout.
 752 #
 753 # Example:
 754 # rev_lib_symlinks libfoo.so.8.1
 755 # output: libfoo.so.8 libfoo.so
 756 # (Only if libfoo.so.8 and libfoo.so exists on host system.)
 757 rev_lib_symlinks() {
 758     [[ ! $1 ]] && return 0
 759
 760     local fn="$1" orig="$(readlink -f "$1")" links=''
 761
 762     [[ ${fn} == *.so.* ]] || return 1
 763
 764     until [[ ${fn##*.} == so ]]; do
 765         fn="${fn%.*}"
 766         [[ -L ${fn} && $(readlink -f "${fn}") == ${orig} ]] && links+=" ${fn}"
 767     done
 768
 769     echo "${links}"
 770 }
 771
 772 # attempt to install any programs specified in a udev rule
 773 inst_rule_programs() {
 774     local _prog _bin
 775
 776     if grep -qE 'PROGRAM==?"[^ "]+' "$1"; then
 777         for _prog in $(grep -E 'PROGRAM==?"[^ "]+' "$1" | sed -r 's/.*PROGRAM==?"([^ "]+).*/\1/'); do
 778             _bin=""
 779             if [ -x ${udevdir}/$_prog ]; then
 780                 _bin=${udevdir}/$_prog
 781             elif [[ "${_prog/\$env\{/}" == "$_prog" ]]; then
 782                 _bin=$(find_binary "$_prog") || {
 783                     dinfo "Skipping program $_prog using in udev rule ${1##*/} as it cannot be found"
 784                     continue;
 785                 }
 786             fi
 787
 788             [[ $_bin ]] && inst_binary "$_bin"
 789         done
 790     fi
 791     if grep -qE 'RUN[+=]=?"[^ "]+' "$1"; then
 792         for _prog in $(grep -E 'RUN[+=]=?"[^ "]+' "$1" | sed -r 's/.*RUN[+=]=?"([^ "]+).*/\1/'); do
 793             _bin=""
 794             if [ -x ${udevdir}/$_prog ]; then
 795                 _bin=${udevdir}/$_prog
 796             elif [[ "${_prog/\$env\{/}" == "$_prog" ]] && [[ "${_prog}" != "/sbin/initqueue" ]]; then
 797                 _bin=$(find_binary "$_prog") || {
 798                     dinfo "Skipping program $_prog using in udev rule ${1##*/} as it cannot be found"
 799                     continue;
 800                 }
 801             fi
 802
 803             [[ $_bin ]] && inst_binary "$_bin"
 804         done
 805     fi
 806     if grep -qE 'IMPORT\{program\}==?"[^ "]+' "$1"; then
 807         for _prog in $(grep -E 'IMPORT\{program\}==?"[^ "]+' "$1" | sed -r 's/.*IMPORT\{program\}==?"([^ "]+).*/\1/'); do
 808             _bin=""
 809             if [ -x ${udevdir}/$_prog ]; then
 810                 _bin=${udevdir}/$_prog
 811             elif [[ "${_prog/\$env\{/}" == "$_prog" ]]; then
 812                 _bin=$(find_binary "$_prog") || {
 813                     dinfo "Skipping program $_prog using in udev rule ${1##*/} as it cannot be found"
 814                     continue;
 815                 }
 816             fi
 817
 818             [[ $_bin ]] && dracut_install "$_bin"
 819         done
 820     fi
 821 }
 822
 823 # attempt to install any programs specified in a udev rule
 824 inst_rule_group_owner() {
 825     local i
 826
 827     if grep -qE 'OWNER=?"[^ "]+' "$1"; then
 828         for i in $(grep -E 'OWNER=?"[^ "]+' "$1" | sed -r 's/.*OWNER=?"([^ "]+).*/\1/'); do
 829             if ! egrep -q "^$i:" "$initdir/etc/passwd" 2>/dev/null; then
 830                 egrep "^$i:" /etc/passwd 2>/dev/null >> "$initdir/etc/passwd"
 831             fi
 832         done
 833     fi
 834     if grep -qE 'GROUP=?"[^ "]+' "$1"; then
 835         for i in $(grep -E 'GROUP=?"[^ "]+' "$1" | sed -r 's/.*GROUP=?"([^ "]+).*/\1/'); do
 836             if ! egrep -q "^$i:" "$initdir/etc/group" 2>/dev/null; then
 837                 egrep "^$i:" /etc/group 2>/dev/null >> "$initdir/etc/group"
 838             fi
 839         done
 840     fi
 841 }
 842
 843 inst_rule_initqueue() {
 844     if grep -q -F initqueue "$1"; then
 845         dracut_need_initqueue
 846     fi
 847 }
 848
 849 # udev rules always get installed in the same place, so
 850 # create a function to install them to make life simpler.
 851 inst_rules() {
 852     local _target=/etc/udev/rules.d _rule _found
 853
 854     inst_dir "${udevdir}/rules.d"
 855     inst_dir "$_target"
 856     for _rule in "$@"; do
 857         if [ "${_rule#/}" = "$_rule" ]; then
 858             for r in ${udevdir}/rules.d ${hostonly:+/etc/udev/rules.d}; do
 859                 if [[ -e $r/$_rule ]]; then
 860                     _found="$r/$_rule"
 861                     inst_rule_programs "$_found"
 862                     inst_rule_group_owner "$_found"
 863                     inst_rule_initqueue "$_found"
 864                     inst_simple "$_found"
 865                 fi
 866             done
 867         fi
 868         for r in '' ./ $dracutbasedir/rules.d/; do
 869             if [[ -f ${r}$_rule ]]; then
 870                 _found="${r}$_rule"
 871                 inst_rule_programs "$_found"
 872                 inst_rule_group_owner "$_found"
 873                 inst_rule_initqueue "$_found"
 874                 inst_simple "$_found" "$_target/${_found##*/}"
 875             fi
 876         done
 877         [[ $_found ]] || dinfo "Skipping udev rule: $_rule"
 878     done
 879 }
 880
 881 prepare_udev_rules() {
 882     [ -z "$UDEVVERSION" ] && export UDEVVERSION=$(udevadm --version)
 883
 884     for f in "$@"; do
 885         f="${initdir}/etc/udev/rules.d/$f"
 886         [ -e "$f" ] || continue
 887         while read line; do
 888             if [ "${line%%IMPORT PATH_ID}" != "$line" ]; then
 889                 if [ $UDEVVERSION -ge 174 ]; then
 890                     printf '%sIMPORT{builtin}="path_id"\n' "${line%%IMPORT PATH_ID}"
 891                 else
 892                     printf '%sIMPORT{program}="path_id %%p"\n' "${line%%IMPORT PATH_ID}"
 893                 fi
 894             elif [ "${line%%IMPORT BLKID}" != "$line" ]; then
 895                 if [ $UDEVVERSION -ge 176 ]; then
 896                     printf '%sIMPORT{builtin}="blkid"\n' "${line%%IMPORT BLKID}"
 897                 else
 898                     printf '%sIMPORT{program}="/sbin/blkid -o udev -p $tempnode"\n' "${line%%IMPORT BLKID}"
 899                 fi
 900             else
 901                 echo "$line"
 902             fi
 903         done < "${f}" > "${f}.new"
 904         mv "${f}.new" "$f"
 905     done
 906 }
 907
 908 # install function specialized for hooks
 909 # $1 = type of hook, $2 = hook priority (lower runs first), $3 = hook
 910 # All hooks should be POSIX/SuS compliant, they will be sourced by init.
 911 inst_hook() {
 912     if ! [[ -f $3 ]]; then
 913         dfatal "Cannot install a hook ($3) that does not exist."
 914         dfatal "Aborting initrd creation."
 915         exit 1
 916     elif ! [[ "$hookdirs" == *$1* ]]; then
 917         dfatal "No such hook type $1. Aborting initrd creation."
 918         exit 1
 919     fi
 920     inst_simple "$3" "/lib/dracut/hooks/${1}/${2}-${3##*/}"
 921 }
 922
 923 # install any of listed files
 924 #
 925 # If first argument is '-d' and second some destination path, first accessible
 926 # source is installed into this path, otherwise it will installed in the same
 927 # path as source.  If none of listed files was installed, function return 1.
 928 # On first successful installation it returns with 0 status.
 929 #
 930 # Example:
 931 #
 932 # inst_any -d /bin/foo /bin/bar /bin/baz
 933 #
 934 # Lets assume that /bin/baz exists, so it will be installed as /bin/foo in
 935 # initramfs.
 936 inst_any() {
 937     local to f
 938
 939     [[ $1 = '-d' ]] && to="$2" && shift 2
 940
 941     for f in "$@"; do
 942         if [[ -e $f ]]; then
 943             [[ $to ]] && inst "$f" "$to" && return 0
 944             inst "$f" && return 0
 945         fi
 946     done
 947
 948     return 1
 949 }
 950
 951
 952 # inst_libdir_file [-n <pattern>] <file> [<file>...]
 953 # Install a <file> located on a lib directory to the initramfs image
 954 # -n <pattern> install matching files
 955 inst_libdir_file() {
 956     local _files
 957     if [[ "$1" == "-n" ]]; then
 958         local _pattern=$2
 959         shift 2
 960         for _dir in $libdirs; do
 961             for _i in "$@"; do
 962                 for _f in "$_dir"/$_i; do
 963                     [[ "$_f" =~ $_pattern ]] || continue
 964                     [[ -e "$_f" ]] && _files+="$_f "
 965                 done
 966             done
 967         done
 968     else
 969         for _dir in $libdirs; do
 970             for _i in "$@"; do
 971                 for _f in "$_dir"/$_i; do
 972                     [[ -e "$_f" ]] && _files+="$_f "
 973                 done
 974             done
 975         done
 976     fi
 977     [[ $_files ]] && inst_multiple $_files
 978 }
 979
 980
 981 # install function decompressing the target and handling symlinks
 982 # $@ = list of compressed (gz or bz2) files or symlinks pointing to such files
 983 #
 984 # Function install targets in the same paths inside overlay but decompressed
 985 # and without extensions (.gz, .bz2).
 986 inst_decompress() {
 987     local _src _cmd
 988
 989     for _src in $@
 990     do
 991         case ${_src} in
 992             *.gz) _cmd='gzip -f -d' ;;
 993             *.bz2) _cmd='bzip2 -d' ;;
 994             *) return 1 ;;
 995         esac
 996         inst_simple ${_src}
 997         # Decompress with chosen tool.  We assume that tool changes name e.g.
 998         # from 'name.gz' to 'name'.
 999         ${_cmd} "${initdir}${_src}"
1000     done
1001 }
1002
1003 # It's similar to above, but if file is not compressed, performs standard
1004 # install.
1005 # $@ = list of files
1006 inst_opt_decompress() {
1007     local _src
1008
1009     for _src in $@
1010     do
1011         inst_decompress "${_src}" || inst "${_src}"
1012     done
1013 }
1014
1015 # module_check <dracut module>
1016 # execute the check() function of module-setup.sh of <dracut module>
1017 # or the "check" script, if module-setup.sh is not found
1018 # "check $hostonly" is called
1019 module_check() {
1020     local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
1021     local _ret
1022     local _forced=0
1023     local _hostonly=$hostonly
1024     [ $# -eq 2 ] && _forced=$2
1025     [[ -d $_moddir ]] || return 1
1026     if [[ ! -f $_moddir/module-setup.sh ]]; then
1027         # if we do not have a check script, we are unconditionally included
1028         [[ -x $_moddir/check ]] || return 0
1029         [ $_forced -ne 0 ] && unset hostonly
1030         $_moddir/check $hostonly
1031         _ret=$?
1032     else
1033         unset check depends cmdline install installkernel
1034         check() { true; }
1035         . $_moddir/module-setup.sh
1036         is_func check || return 0
1037         [ $_forced -ne 0 ] && unset hostonly
1038         check $hostonly
1039         _ret=$?
1040         unset check depends cmdline install installkernel
1041     fi
1042     hostonly=$_hostonly
1043     return $_ret
1044 }
1045
1046 # module_check_mount <dracut module>
1047 # execute the check() function of module-setup.sh of <dracut module>
1048 # or the "check" script, if module-setup.sh is not found
1049 # "mount_needs=1 check 0" is called
1050 module_check_mount() {
1051     local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
1052     local _ret
1053     mount_needs=1
1054     [[ -d $_moddir ]] || return 1
1055     if [[ ! -f $_moddir/module-setup.sh ]]; then
1056         # if we do not have a check script, we are unconditionally included
1057         [[ -x $_moddir/check ]] || return 0
1058         mount_needs=1 $_moddir/check 0
1059         _ret=$?
1060     else
1061         unset check depends cmdline install installkernel
1062         check() { false; }
1063         . $_moddir/module-setup.sh
1064         check 0
1065         _ret=$?
1066         unset check depends cmdline install installkernel
1067     fi
1068     unset mount_needs
1069     return $_ret
1070 }
1071
1072 # module_depends <dracut module>
1073 # execute the depends() function of module-setup.sh of <dracut module>
1074 # or the "depends" script, if module-setup.sh is not found
1075 module_depends() {
1076     local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
1077     local _ret
1078     [[ -d $_moddir ]] || return 1
1079     if [[ ! -f $_moddir/module-setup.sh ]]; then
1080         # if we do not have a check script, we have no deps
1081         [[ -x $_moddir/check ]] || return 0
1082         $_moddir/check -d
1083         return $?
1084     else
1085         unset check depends cmdline install installkernel
1086         depends() { true; }
1087         . $_moddir/module-setup.sh
1088         depends
1089         _ret=$?
1090         unset check depends cmdline install installkernel
1091         return $_ret
1092     fi
1093 }
1094
1095 # module_cmdline <dracut module>
1096 # execute the cmdline() function of module-setup.sh of <dracut module>
1097 # or the "cmdline" script, if module-setup.sh is not found
1098 module_cmdline() {
1099     local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
1100     local _ret
1101     [[ -d $_moddir ]] || return 1
1102     if [[ ! -f $_moddir/module-setup.sh ]]; then
1103         [[ -x $_moddir/cmdline ]] && . "$_moddir/cmdline"
1104         return $?
1105     else
1106         unset check depends cmdline install installkernel
1107         cmdline() { true; }
1108         . $_moddir/module-setup.sh
1109         cmdline
1110         _ret=$?
1111         unset check depends cmdline install installkernel
1112         return $_ret
1113     fi
1114 }
1115
1116 # module_install <dracut module>
1117 # execute the install() function of module-setup.sh of <dracut module>
1118 # or the "install" script, if module-setup.sh is not found
1119 module_install() {
1120     local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
1121     local _ret
1122     [[ -d $_moddir ]] || return 1
1123     if [[ ! -f $_moddir/module-setup.sh ]]; then
1124         [[ -x $_moddir/install ]] && . "$_moddir/install"
1125         return $?
1126     else
1127         unset check depends cmdline install installkernel
1128         install() { true; }
1129         . $_moddir/module-setup.sh
1130         install
1131         _ret=$?
1132         unset check depends cmdline install installkernel
1133         return $_ret
1134     fi
1135 }
1136
1137 # module_installkernel <dracut module>
1138 # execute the installkernel() function of module-setup.sh of <dracut module>
1139 # or the "installkernel" script, if module-setup.sh is not found
1140 module_installkernel() {
1141     local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
1142     local _ret
1143     [[ -d $_moddir ]] || return 1
1144     if [[ ! -f $_moddir/module-setup.sh ]]; then
1145         [[ -x $_moddir/installkernel ]] && . "$_moddir/installkernel"
1146         return $?
1147     else
1148         unset check depends cmdline install installkernel
1149         installkernel() { true; }
1150         . $_moddir/module-setup.sh
1151         installkernel
1152         _ret=$?
1153         unset check depends cmdline install installkernel
1154         return $_ret
1155     fi
1156 }
1157
1158 # check_mount <dracut module>
1159 # check_mount checks, if a dracut module is needed for the given
1160 # device and filesystem types in "${host_fs_types[@]}"
1161 check_mount() {
1162     local _mod=$1
1163     local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
1164     local _ret
1165     local _moddep
1166
1167     [ "${#host_fs_types[*]}" -le 0 ] && return 1
1168
1169     # If we are already scheduled to be loaded, no need to check again.
1170     [[ " $mods_to_load " == *\ $_mod\ * ]] && return 0
1171     [[ " $mods_checked_as_dep " == *\ $_mod\ * ]] && return 1
1172
1173     # This should never happen, but...
1174     [[ -d $_moddir ]] || return 1
1175
1176     [[ $2 ]] || mods_checked_as_dep+=" $_mod "
1177
1178     if [[ " $omit_dracutmodules " == *\ $_mod\ * ]]; then
1179         return 1
1180     fi
1181
1182     if [[ " $dracutmodules $add_dracutmodules $force_add_dracutmodules" == *\ $_mod\ * ]]; then
1183         module_check_mount $_mod; ret=$?
1184
1185         # explicit module, so also accept ret=255
1186         [[ $ret = 0 || $ret = 255 ]] || return 1
1187     else
1188         # module not in our list
1189         if [[ $dracutmodules = all ]]; then
1190             # check, if we can and should install this module
1191             module_check_mount $_mod || return 1
1192         else
1193             # skip this module
1194             return 1
1195         fi
1196     fi
1197
1198
1199     for _moddep in $(module_depends $_mod); do
1200         # handle deps as if they were manually added
1201         [[ " $add_dracutmodules " == *\ $_moddep\ * ]] || \
1202             add_dracutmodules+=" $_moddep "
1203         [[ " $force_add_dracutmodules " == *\ $_moddep\ * ]] || \
1204             force_add_dracutmodules+=" $_moddep "
1205         # if a module we depend on fail, fail also
1206         if ! check_module $_moddep; then
1207             derror "dracut module '$_mod' depends on '$_moddep', which can't be installed"
1208             return 1
1209         fi
1210     done
1211
1212     [[ " $mods_to_load " == *\ $_mod\ * ]] || \
1213         mods_to_load+=" $_mod "
1214
1215     return 0
1216 }
1217
1218 # check_module <dracut module> [<use_as_dep>]
1219 # check if a dracut module is to be used in the initramfs process
1220 # if <use_as_dep> is set, then the process also keeps track
1221 # that the modules were checked for the dependency tracking process
1222 check_module() {
1223     local _mod=$1
1224     local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
1225     local _ret
1226     local _moddep
1227     # If we are already scheduled to be loaded, no need to check again.
1228     [[ " $mods_to_load " == *\ $_mod\ * ]] && return 0
1229     [[ " $mods_checked_as_dep " == *\ $_mod\ * ]] && return 1
1230
1231     # This should never happen, but...
1232     [[ -d $_moddir ]] || return 1
1233
1234     [[ $2 ]] || mods_checked_as_dep+=" $_mod "
1235
1236     if [[ " $omit_dracutmodules " == *\ $_mod\ * ]]; then
1237         dinfo "dracut module '$_mod' will not be installed, because it's in the list to be omitted!"
1238         return 1
1239     fi
1240
1241     if [[ " $dracutmodules $add_dracutmodules $force_add_dracutmodules" == *\ $_mod\ * ]]; then
1242         if [[ " $force_add_dracutmodules " == *\ $_mod\ * ]]; then
1243             module_check $_mod 1; ret=$?
1244         else
1245             module_check $_mod 0; ret=$?
1246         fi
1247         # explicit module, so also accept ret=255
1248         [[ $ret = 0 || $ret = 255 ]] || return 1
1249     else
1250         # module not in our list
1251         if [[ $dracutmodules = all ]]; then
1252             # check, if we can and should install this module
1253             module_check $_mod || return 1
1254         else
1255             # skip this module
1256             return 1
1257         fi
1258     fi
1259
1260     for _moddep in $(module_depends $_mod); do
1261         # handle deps as if they were manually added
1262         [[ " $add_dracutmodules " == *\ $_moddep\ * ]] || \
1263             add_dracutmodules+=" $_moddep "
1264         [[ " $force_add_dracutmodules " == *\ $_moddep\ * ]] || \
1265             force_add_dracutmodules+=" $_moddep "
1266         # if a module we depend on fail, fail also
1267         if ! check_module $_moddep; then
1268             derror "dracut module '$_mod' depends on '$_moddep', which can't be installed"
1269             return 1
1270         fi
1271     done
1272
1273     [[ " $mods_to_load " == *\ $_mod\ * ]] || \
1274         mods_to_load+=" $_mod "
1275
1276     return 0
1277 }
1278
1279 # for_each_module_dir <func>
1280 # execute "<func> <dracut module> 1"
1281 for_each_module_dir() {
1282     local _modcheck
1283     local _mod
1284     local _moddir
1285     local _func
1286     _func=$1
1287     for _moddir in "$dracutbasedir/modules.d"/[0-9][0-9]*; do
1288         _mod=${_moddir##*/}; _mod=${_mod#[0-9][0-9]}
1289         $_func $_mod 1
1290     done
1291
1292     # Report any missing dracut modules, the user has specified
1293     _modcheck="$add_dracutmodules $force_add_dracutmodules"
1294     [[ $dracutmodules != all ]] && _modcheck="$m $dracutmodules"
1295     for _mod in $_modcheck; do
1296         [[ " $mods_to_load " == *\ $_mod\ * ]] && continue
1297         [[ " $omit_dracutmodules " == *\ $_mod\ * ]] && continue
1298         derror "dracut module '$_mod' cannot be found or installed."
1299     done
1300 }
1301
1302 # Install a single kernel module along with any firmware it may require.
1303 # $1 = full path to kernel module to install
1304 install_kmod_with_fw() {
1305     # no need to go further if the module is already installed
1306
1307     [[ -e "${initdir}/lib/modules/$kernel/${1##*/lib/modules/$kernel/}" ]] \
1308         && return 0
1309
1310     if [[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && [[ -e "$DRACUT_KERNEL_LAZY_HASHDIR/${1##*/}" ]]; then
1311         read ret < "$DRACUT_KERNEL_LAZY_HASHDIR/${1##*/}"
1312         return $ret
1313     fi
1314
1315     if [[ $omit_drivers ]]; then
1316         local _kmod=${1##*/}
1317         _kmod=${_kmod%.ko}
1318         _kmod=${_kmod/-/_}
1319         if [[ "$_kmod" =~ $omit_drivers ]]; then
1320             dinfo "Omitting driver $_kmod"
1321             return 0
1322         fi
1323         if [[ "${1##*/lib/modules/$kernel/}" =~ $omit_drivers ]]; then
1324             dinfo "Omitting driver $_kmod"
1325             return 0
1326         fi
1327     fi
1328
1329     if [[ $silent_omit_drivers ]]; then
1330         local _kmod=${1##*/}
1331         _kmod=${_kmod%.ko}
1332         _kmod=${_kmod/-/_}
1333         [[ "$_kmod" =~ $silent_omit_drivers ]] && return 0
1334         [[ "${1##*/lib/modules/$kernel/}" =~ $silent_omit_drivers ]] && return 0
1335     fi
1336
1337     inst_simple "$1" "/lib/modules/$kernel/${1##*/lib/modules/$kernel/}"
1338     ret=$?
1339     [[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && \
1340         [[ -d "$DRACUT_KERNEL_LAZY_HASHDIR" ]] && \
1341         echo $ret > "$DRACUT_KERNEL_LAZY_HASHDIR/${1##*/}"
1342     (($ret != 0)) && return $ret
1343
1344     local _modname=${1##*/} _fwdir _found _fw
1345     _modname=${_modname%.ko*}
1346     for _fw in $(modinfo -k $kernel -F firmware $1 2>/dev/null); do
1347         _found=''
1348         for _fwdir in $fw_dir; do
1349             if [[ -d $_fwdir && -f $_fwdir/$_fw ]]; then
1350                 inst_simple "$_fwdir/$_fw" "/lib/firmware/$_fw"
1351                 _found=yes
1352             fi
1353         done
1354         if [[ $_found != yes ]]; then
1355             if ! [[ -d $(echo /sys/module/${_modname//-/_}|{ read a b; echo $a; }) ]]; then
1356                 dinfo "Possible missing firmware \"${_fw}\" for kernel module" \
1357                     "\"${_modname}.ko\""
1358             else
1359                 dwarn "Possible missing firmware \"${_fw}\" for kernel module" \
1360                     "\"${_modname}.ko\""
1361             fi
1362         fi
1363     done
1364     return 0
1365 }
1366
1367 # Do something with all the dependencies of a kernel module.
1368 # Note that kernel modules depend on themselves using the technique we use
1369 # $1 = function to call for each dependency we find
1370 #      It will be passed the full path to the found kernel module
1371 # $2 = module to get dependencies for
1372 # rest of args = arguments to modprobe
1373 # _fderr specifies FD passed from surrounding scope
1374 for_each_kmod_dep() {
1375     local _func=$1 _kmod=$2 _cmd _modpath _options
1376     shift 2
1377     modprobe "$@" --ignore-install --show-depends $_kmod 2>&${_fderr} | (
1378         while read _cmd _modpath _options; do
1379             [[ $_cmd = insmod ]] || continue
1380             $_func ${_modpath} || exit $?
1381         done
1382     )
1383 }
1384
1385 dracut_kernel_post() {
1386     local _moddirname=${srcmods%%/lib/modules/*}
1387     local _pid
1388
1389     if [[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && [[ -f "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist" ]]; then
1390         xargs -r modprobe -a ${_moddirname:+-d ${_moddirname}/} \
1391             --ignore-install --show-depends --set-version $kernel \
1392             < "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist" 2>/dev/null \
1393             | sort -u \
1394             | while read _cmd _modpath _options; do
1395             [[ $_cmd = insmod ]] || continue
1396             echo "$_modpath"
1397         done > "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist.dep"
1398
1399         (
1400             if [[ $DRACUT_INSTALL ]] && [[ -z $_moddirname ]]; then
1401                 xargs -r $DRACUT_INSTALL ${initdir:+-D "$initdir"} -a < "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist.dep"
1402             else
1403                 while read _modpath; do
1404                     local _destpath=$_modpath
1405                     [[ $_moddirname ]] && _destpath=${_destpath##$_moddirname/}
1406                     _destpath=${_destpath##*/lib/modules/$kernel/}
1407                     inst_simple "$_modpath" "/lib/modules/$kernel/${_destpath}" || exit $?
1408                 done < "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist.dep"
1409             fi
1410         ) &
1411         _pid=$(jobs -p | while read a ; do printf ":$a";done)
1412         _pid=${_pid##*:}
1413
1414         if [[ $DRACUT_INSTALL ]]; then
1415             xargs -r modinfo -k $kernel -F firmware < "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist.dep" \
1416                 | while read line; do
1417                 for _fwdir in $fw_dir; do
1418                     echo $_fwdir/$line;
1419                 done;
1420             done | xargs -r $DRACUT_INSTALL ${initdir:+-D "$initdir"} -a -o
1421         else
1422             for _fw in $(xargs -r modinfo -k $kernel -F firmware < "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist.dep"); do
1423                 for _fwdir in $fw_dir; do
1424                     if [[ -d $_fwdir && -f $_fwdir/$_fw ]]; then
1425                         inst_simple "$_fwdir/$_fw" "/lib/firmware/$_fw"
1426                         break
1427                     fi
1428                 done
1429             done
1430         fi
1431
1432         wait $_pid
1433     fi
1434
1435     for _f in modules.builtin.bin modules.builtin; do
1436         [[ $srcmods/$_f ]] && break
1437     done || {
1438         dfatal "No modules.builtin.bin and modules.builtin found!"
1439         return 1
1440     }
1441
1442     for _f in modules.builtin.bin modules.builtin modules.order; do
1443         [[ $srcmods/$_f ]] && inst_simple "$srcmods/$_f" "/lib/modules/$kernel/$_f"
1444     done
1445
1446     # generate module dependencies for the initrd
1447     if [[ -d $initdir/lib/modules/$kernel ]] && \
1448         ! depmod -a -b "$initdir" $kernel; then
1449         dfatal "\"depmod -a $kernel\" failed."
1450         exit 1
1451     fi
1452
1453     [[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && rm -fr -- "$DRACUT_KERNEL_LAZY_HASHDIR"
1454 }
1455
1456 module_is_host_only() {
1457     local _mod=$1
1458     _mod=${_mod##*/}
1459     _mod=${_mod%.ko}
1460
1461     [[ " $add_drivers " == *\ ${_mod}\ * ]] && return 0
1462
1463     # check if module is loaded
1464     for i in /sys/module/${_mod//-/_}; do
1465         [[ -d $i ]] && return 0
1466     done
1467
1468     # check if module is loadable on the current kernel
1469     # this covers the case, where a new module is introduced
1470     # or a module was renamed
1471     # or a module changed from builtin to a module
1472     modinfo -F filename "$_mod" &>/dev/null || return 0
1473
1474     return 1
1475 }
1476
1477 find_kernel_modules_by_path () {
1478     local _OLDIFS
1479
1480     [[ -f "$srcmods/modules.dep" ]] || return 0
1481
1482     _OLDIFS=$IFS
1483     IFS=:
1484     while read a rest; do
1485         [[ $a = */$1/* ]] || continue
1486         printf "%s\n" "$srcmods/$a"
1487     done < "$srcmods/modules.dep"
1488     IFS=$_OLDIFS
1489     return 0
1490 }
1491
1492 find_kernel_modules () {
1493     find_kernel_modules_by_path  drivers
1494 }
1495
1496 # instmods [-c [-s]] <kernel module> [<kernel module> ... ]
1497 # instmods [-c [-s]] <kernel subsystem>
1498 # install kernel modules along with all their dependencies.
1499 # <kernel subsystem> can be e.g. "=block" or "=drivers/usb/storage"
1500 instmods() {
1501     [[ $no_kernel = yes ]] && return
1502     # called [sub]functions inherit _fderr
1503     local _fderr=9
1504     local _check=no
1505     local _silent=no
1506     if [[ $1 = '-c' ]]; then
1507         _check=yes
1508         shift
1509     fi
1510
1511     if [[ $1 = '-s' ]]; then
1512         _silent=yes
1513         shift
1514     fi
1515
1516     function inst1mod() {
1517         local _ret=0 _mod="$1"
1518         case $_mod in
1519             =*)
1520                 ( [[ "$_mpargs" ]] && echo $_mpargs
1521                     find_kernel_modules_by_path "${_mod#=}" ) \
1522                         | instmods
1523                 ((_ret+=$?))
1524                 ;;
1525             --*) _mpargs+=" $_mod" ;;
1526             *)
1527                 _mod=${_mod##*/}
1528                 # if we are already installed, skip this module and go on
1529                 # to the next one.
1530                 if [[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && \
1531                     [[ -f "$DRACUT_KERNEL_LAZY_HASHDIR/${_mod%.ko}.ko" ]]; then
1532                     read _ret <"$DRACUT_KERNEL_LAZY_HASHDIR/${_mod%.ko}.ko"
1533                     return $_ret
1534                 fi
1535
1536                 _mod=${_mod/-/_}
1537                 if [[ $omit_drivers ]] && [[ "$_mod" =~ $omit_drivers ]]; then
1538                     dinfo "Omitting driver ${_mod##$srcmods}"
1539                     return 0
1540                 fi
1541
1542                 # If we are building a host-specific initramfs and this
1543                 # module is not already loaded, move on to the next one.
1544                 [[ $hostonly ]] \
1545                     && ! module_is_host_only "$_mod" \
1546                     && return 0
1547
1548                 if [[ "$_check" = "yes" ]] || ! [[ $DRACUT_KERNEL_LAZY_HASHDIR ]]; then
1549                     # We use '-d' option in modprobe only if modules prefix path
1550                     # differs from default '/'.  This allows us to use dracut with
1551                     # old version of modprobe which doesn't have '-d' option.
1552                     local _moddirname=${srcmods%%/lib/modules/*}
1553                     [[ -n ${_moddirname} ]] && _moddirname="-d ${_moddirname}/"
1554
1555                     # ok, load the module, all its dependencies, and any firmware
1556                     # it may require
1557                     for_each_kmod_dep install_kmod_with_fw $_mod \
1558                         --set-version $kernel ${_moddirname} $_mpargs
1559                     ((_ret+=$?))
1560                 else
1561                     [[ $DRACUT_KERNEL_LAZY_HASHDIR ]] && \
1562                         echo $_mod >> "$DRACUT_KERNEL_LAZY_HASHDIR/lazylist"
1563                 fi
1564                 ;;
1565         esac
1566         return $_ret
1567     }
1568
1569     function instmods_1() {
1570         local _mod _mpargs
1571         if (($# == 0)); then  # filenames from stdin
1572             while read _mod; do
1573                 inst1mod "${_mod%.ko*}" || {
1574                     if [[ "$_check" == "yes" ]]; then
1575                         [[ "$_silent" == "no" ]] && dfatal "Failed to install module $_mod"
1576                         return 1
1577                     fi
1578                 }
1579             done
1580         fi
1581         while (($# > 0)); do  # filenames as arguments
1582             inst1mod ${1%.ko*} || {
1583                 if [[ "$_check" == "yes" ]]; then
1584                     [[ "$_silent" == "no" ]] && dfatal "Failed to install module $1"
1585                     return 1
1586                 fi
1587             }
1588             shift
1589         done
1590         return 0
1591     }
1592
1593     local _ret _filter_not_found='FATAL: Module .* not found.'
1594     # Capture all stderr from modprobe to _fderr. We could use {var}>...
1595     # redirections, but that would make dracut require bash4 at least.
1596     eval "( instmods_1 \"\$@\" ) ${_fderr}>&1" \
1597         | while read line; do [[ "$line" =~ $_filter_not_found ]] || echo $line;done | derror
1598     _ret=$?
1599     return $_ret
1600 }
1601 # get_cpu_vendor
1602 # Only two values are returned: AMD or Intel
1603 get_cpu_vendor ()
1604 {
1605     if grep -qE AMD /proc/cpuinfo; then
1606         printf "AMD"
1607     fi
1608     if grep -qE Intel /proc/cpuinfo; then
1609         printf "Intel"
1610     fi
1611 }
1612
1613 # get_host_ucode
1614 # Get the hosts' ucode file based on the /proc/cpuinfo
1615 get_ucode_file ()
1616 {
1617     local family=`grep -E "cpu family" /proc/cpuinfo | head -1 | sed s/.*:\ //`
1618     local model=`grep -E "model" /proc/cpuinfo |grep -v name | head -1 | sed s/.*:\ //`
1619     local stepping=`grep -E "stepping" /proc/cpuinfo | head -1 | sed s/.*:\ //`
1620
1621     if [[ "$(get_cpu_vendor)" == "AMD" ]]; then
1622         # If family greater or equal than 0x15
1623         if [[ $family -ge 21 ]]; then
1624             printf "microcode_amd_fam15h.bin"
1625         else
1626             printf "microcode_amd.bin"
1627         fi
1628     fi
1629     if [[ "$(get_cpu_vendor)" == "Intel" ]]; then
1630         # The /proc/cpuinfo are in decimal.
1631         printf "%02x-%02x-%02x" ${family} ${model} ${stepping}
1632     fi
1633 }