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#!/bin/bash
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# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
# ex: ts=8 sw=4 sts=4 et filetype=sh
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#
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# functions used by dracut and other tools.
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#
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# Copyright 2005-2009 Red Hat, Inc. All rights reserved.
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#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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if ! [[ $dracutbasedir ]]; then
dracutbasedir=${BASH_SOURCE[0]%/*}
[[ $dracutbasedir = "dracut-functions" ]] && dracutbasedir="."
[[ $dracutbasedir ]] || dracutbasedir="."
dracutbasedir="$(readlink -f $dracutbasedir)"
fi
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if ! type dinfo >/dev/null 2>&1; then
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. "$dracutbasedir/dracut-logger"
dlog_init
fi
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# Generic substring function. If $2 is in $1, return 0.
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strstr() { [[ $1 =~ $2 ]]; }
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# Create all subdirectories for given path without creating the last element.
# $1 = path
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mksubdirs() { mkdir -m 0755 -p ${1%/*}; }
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# Version comparision function. Assumes Linux style version scheme.
# $1 = version a
# $2 = comparision op (gt, ge, eq, le, lt, ne)
# $3 = version b
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vercmp() {
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local _n1=(${1//./ }) _op=$2 _n2=(${3//./ }) _i _res
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for ((_i=0; ; _i++))
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do
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if [[ ! ${_n1[_i]}${_n2[_i]} ]]; then _res=0
elif ((${_n1[_i]:-0} > ${_n2[_i]:-0})); then _res=1
elif ((${_n1[_i]:-0} < ${_n2[_i]:-0})); then _res=2
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else continue
fi
break
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done
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case $_op in
gt) ((_res == 1));;
ge) ((_res != 2));;
eq) ((_res == 0));;
le) ((_res != 1));;
lt) ((_res == 2));;
ne) ((_res != 0));;
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esac
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}
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is_func() {
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[[ $(type -t $1) = "function" ]]
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}
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# Function prints global variables in format name=value line by line.
# $@ = list of global variables' name
print_vars() {
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local _var _value
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for _var in $@
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do
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_value=$(eval echo \$$_var)
[[ ${_value} ]] && echo "${_var}=\"${_value}\""
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done
}
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normalize_path() {
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shopt -q -s extglob
set -- "${1//+(\/)//}"
shopt -q -u extglob
echo "${1%/}"
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}
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convert_abs_rel() {
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local __current __absolute __abssize __cursize __newpath __oldifs
local -i __i __level
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# PS4='${BASH_SOURCE}@${LINENO}(${FUNCNAME[0]}): ';
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set -- "$(normalize_path "$1")" "$(normalize_path "$2")"
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# corner case #1 - self looping link
[[ "$1" == "$2" ]] && { echo "${1##*/}"; return; }
# corner case #2 - own dir link
[[ "${1%/*}" == "$2" ]] && { echo "."; return; }
__oldifs="$IFS"
IFS="/"
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__current=($1)
__absolute=($2)
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IFS="$__oldifs"
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__abssize=${#__absolute[@]}
__cursize=${#__current[@]}
while [[ ${__absolute[__level]} == ${__current[__level]} ]]
do
(( __level++ ))
if (( __level > __abssize || __level > __cursize ))
then
break
fi
done
for ((__i = __level; __i < __cursize-1; __i++))
do
if ((__i > __level))
then
__newpath=$__newpath"/"
fi
__newpath=$__newpath".."
done
for ((__i = __level; __i < __abssize; __i++))
do
if [[ -n $__newpath ]]
then
__newpath=$__newpath"/"
fi
__newpath=$__newpath${__absolute[__i]}
done
echo "$__newpath"
}
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get_fs_env() {
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[[ $1 ]] || return
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unset ID_FS_TYPE
unset ID_FS_UUID
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eval $(udevadm info --query=env --name=$1|egrep 'ID_FS_(TYPE|UUID)=')
[[ $ID_FS_TYPE ]] && return
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if [[ -x /lib/udev/vol_id ]]; then
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eval $(/lib/udev/vol_id --export $1)
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elif find_binary blkid >/dev/null; then
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eval $(blkid -o udev $1)
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else
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return 1
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fi
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}
get_fs_type() (
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[[ $1 ]] || return
if [[ $1 != ${1#/dev/block/nfs:} ]] \
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|| [[ $1 != ${1#/dev/block/nfs3:} ]] \
|| [[ $1 != ${1#/dev/block/nfs4:} ]]; then
echo "nfs"
return
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fi
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if get_fs_env $1; then
echo $ID_FS_TYPE
return
fi
find_dev_fstype $1
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)
get_fs_uuid() (
get_fs_env $1 || return
echo $ID_FS_UUID
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)
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get_maj_min() {
local _dev
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_dev=$(stat -L -c '$((0x%t)):$((0x%T))' "$1" 2>/dev/null)
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_dev=$(eval "echo $_dev")
echo $_dev
}
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find_block_device() {
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local _x _mpt _majmin _dev _fs _maj _min
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if [[ $use_fstab != yes ]]; then
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while read _x _x _majmin _x _mpt _x _x _fs _dev _x; do
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[[ $_mpt = $1 ]] || continue
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[[ $_fs = nfs ]] && { echo $_dev; return 0;}
[[ $_fs = nfs3 ]] && { echo $_dev; return 0;}
[[ $_fs = nfs4 ]] && { echo $_dev; return 0;}
[[ $_fs = btrfs ]] && {
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get_maj_min $_dev
return 0;
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}
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if [[ ${_majmin#0:} = $_majmin ]]; then
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echo $_majmin
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return 0 # we have a winner!
fi
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done < /proc/self/mountinfo
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fi
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# fall back to /etc/fstab
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while read _dev _mpt _fs _x; do
if [[ $_mpt = $1 ]]; then
[[ $_fs = nfs ]] && { echo $_dev; return 0;}
[[ $_fs = nfs3 ]] && { echo $_dev; return 0;}
[[ $_fs = nfs4 ]] && { echo $_dev; return 0;}
[[ $_dev != ${_dev#UUID=} ]] && _dev=/dev/disk/by-uuid/${_dev#UUID=}
[[ $_dev != ${_dev#LABEL=} ]] && _dev=/dev/disk/by-label/${_dev#LABEL=}
[[ -b $_dev ]] || return 1 # oops, not a block device.
ls -nLl "$_dev" | {
read _x _x _x _x _maj _min _x
_maj=${_maj//,/}
echo $_maj:$_min
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} && return 0
fi
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done < /etc/fstab
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return 1
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}
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find_dev_fstype() {
local _x _mpt _majmin _dev _fs _maj _min
while read _x _x _majmin _x _mpt _x _x _fs _dev _x; do
[[ $_dev = $1 ]] || continue
echo -n $_fs;
return 0;
done < /proc/self/mountinfo
# fall back to /etc/fstab
while read _dev _mpt _fs _x; do
[[ $_dev = $1 ]] || continue
echo -n $_fs;
return 0;
done < /etc/fstab
return 1
}
# finds the major:minor of the block device backing the root filesystem.
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find_root_block_device() { find_block_device /; }
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for_each_host_dev_fs()
{
local _func="$1"
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local _dev
local _fs
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for f in ${host_fs_types[@]}; do
OLDIFS="$IFS"
IFS="|"
set -- $f
IFS="$OLDIFS"
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_dev="$1"
[[ -b "$_dev" ]] || continue
_fs="$2"
$_func $_dev $_fs
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done
}
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# Walk all the slave relationships for a given block device.
# Stop when our helper function returns success
# $1 = function to call on every found block device
# $2 = block device in major:minor format
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check_block_and_slaves() {
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local _x
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[[ -b /dev/block/$2 ]] || return 1 # Not a block device? So sorry.
"$1" $2 && return
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check_vol_slaves "$@" && return 0
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if [[ -f /sys/dev/block/$2/../dev ]]; then
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check_block_and_slaves $1 $(cat "/sys/dev/block/$2/../dev") && return 0
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fi
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[[ -d /sys/dev/block/$2/slaves ]] || return 1
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for _x in /sys/dev/block/$2/slaves/*/dev; do
[[ -f $_x ]] || continue
check_block_and_slaves $1 $(cat "$_x") && return 0
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done
return 1
}
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get_numeric_dev() {
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local _x _maj _min
ls -lH "$1" | { read _x _x _x _x _maj _min _x; printf "%d:%d" ${_maj%%,} $_min; }
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}
# ugly workaround for the lvm design
# There is no volume group device,
# so, there are no slave devices for volume groups.
# Logical volumes only have the slave devices they really live on,
# but you cannot create the logical volume without the volume group.
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# And the volume group might be bigger than the devices the LV needs.
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check_vol_slaves() {
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local _lv _vg _pv
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for i in /dev/mapper/*; do
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_lv=$(get_numeric_dev $i)
if [[ $_lv = $2 ]]; then
_vg=$(lvm lvs --noheadings -o vg_name $i 2>/dev/null)
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# strip space
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_vg=$(echo $_vg)
if [[ $_vg ]]; then
for _pv in $(lvm vgs --noheadings -o pv_name "$_vg" 2>/dev/null)
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do
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check_block_and_slaves $1 $(get_numeric_dev $_pv) && return 0
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done
fi
fi
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done
return 1
}
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# Install a directory, keeping symlinks as on the original system.
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# Example: if /lib points to /lib64 on the host, "inst_dir /lib/file"
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# will create ${initdir}/lib64, ${initdir}/lib64/file,
# and a symlink ${initdir}/lib -> lib64.
inst_dir() {
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[[ -e ${initdir}/"$1" ]] && return 0 # already there
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local _dir="$1" _part="${1%/*}" _file
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while [[ "$_part" != "${_part%/*}" ]] && ! [[ -e "${initdir}/${_part}" ]]; do
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_dir="$_part $_dir"
_part=${_part%/*}
done
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# iterate over parent directories
for _file in $_dir; do
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if [[ -L $_file ]]; then
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# create link as the original
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local target=$(readlink -f "$_file")
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# resolve relative path and recursively install destination
[[ $target == ${target#/} ]] && target="$(dirname "$_file")/$target"
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inst_dir "$target"
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inst_symlink "$_file"
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else
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[[ -h ${initdir}/$_file ]] && _file=$(readlink "${initdir}/$_file")
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# create directory
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[[ -e "${initdir}/$_file" ]] || mkdir -m 0755 -p "${initdir}/$_file" || return 1
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if [[ -d "$_file" ]]; then
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chmod --reference="$_file" "${initdir}/$_file"
chmod u+w "${initdir}/$_file"
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fi
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fi
done
}
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# $1 = file to copy to ramdisk
# $2 (optional) Name for the file on the ramdisk
# Location of the image dir is assumed to be $initdir
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# We never overwrite the target if it exists.
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inst_simple() {
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[[ -f "$1" ]] || return 1
strstr "$1" "/" || return 1
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local _src=$1 target="${2:-$1}"
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if ! [[ -d ${initdir}/$target ]]; then
[[ -e ${initdir}/$target ]] && return 0
[[ -h ${initdir}/$target ]] && return 0
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inst_dir "${target%/*}"
fi
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# install checksum files also
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if [[ -e "${_src%/*}/.${_src##*/}.hmac" ]]; then
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inst "${_src%/*}/.${_src##*/}.hmac" "${target%/*}/.${target##*/}.hmac"
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fi
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ddebug "Installing $_src"
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cp --sparse=always -pfL "$_src" "${initdir}/$target"
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}
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# find symlinks linked to given library file
# $1 = library file
# Function searches for symlinks by stripping version numbers appended to
# library filename, checks if it points to the same target and finally
# prints the list of symlinks to stdout.
#
# Example:
# rev_lib_symlinks libfoo.so.8.1
# output: libfoo.so.8 libfoo.so
# (Only if libfoo.so.8 and libfoo.so exists on host system.)
rev_lib_symlinks() {
[[ ! $1 ]] && return 0
local fn="$1" orig="$(readlink -f "$1")" links=''
[[ ${fn} =~ .*\.so\..* ]] || return 1
until [[ ${fn##*.} == so ]]; do
fn="${fn%.*}"
[[ -L ${fn} && $(readlink -f "${fn}") == ${orig} ]] && links+=" ${fn}"
done
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echo "${links}"
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}
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# Same as above, but specialized to handle dynamic libraries.
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# It handles making symlinks according to how the original library
# is referenced.
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inst_library() {
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local _src="$1" _dest=${2:-$1} _lib _reallib _symlink
strstr "$1" "/" || return 1
[[ -e $initdir/$_dest ]] && return 0
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if [[ -L $_src ]]; then
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# install checksum files also
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if [[ -e "${_src%/*}/.${_src##*/}.hmac" ]]; then
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inst "${_src%/*}/.${_src##*/}.hmac" "${_dest%/*}/.${_dest##*/}.hmac"
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fi
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_reallib=$(readlink -f "$_src")
inst_simple "$_reallib" "$_reallib"
inst_dir "${_dest%/*}"
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ln -sfn $(convert_abs_rel "${_dest}" "${_reallib}") "${initdir}/${_dest}"
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else
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inst_simple "$_src" "$_dest"
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fi
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# Create additional symlinks. See rev_symlinks description.
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for _symlink in $(rev_lib_symlinks $_src) $(rev_lib_symlinks $_reallib); do
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[[ ! -e $initdir/$_symlink ]] && {
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ddebug "Creating extra symlink: $_symlink"
inst_symlink $_symlink
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}
done
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}
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# find a binary. If we were not passed the full path directly,
# search in the usual places to find the binary.
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find_binary() {
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if [[ -z ${1##/*} ]]; then
if [[ -x $1 ]] || ldd $1 &>/dev/null; then
echo $1
return 0
fi
fi
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type -P $1
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}
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# Same as above, but specialized to install binary executables.
# Install binary executable, and all shared library dependencies, if any.
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inst_binary() {
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local _bin _target _f _self _so_regex _lib_regex _tlibdir _base _file _line
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_bin=$(find_binary "$1") || return 1
_target=${2:-$_bin}
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[[ -e $initdir/$_target ]] && return 0
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inst_symlink $_bin $_target && return 0
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# If the binary being installed is also a library, add it to the loop.
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_so_regex='([^ ]*/lib[^/]*/[^ ]*\.so[^ ]*)'
[[ $_bin =~ $_so_regex ]] && _self="\t${_bin##*/} => ${_bin} (0x0)\n"
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_lib_regex='^(/lib[^/]*).*'
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# I love bash!
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{ LC_ALL=C ldd $_bin 2>/dev/null; echo -en "$_self"; } | while read _line; do
[[ $_line = 'not a dynamic executable' ]] && return 1
if [[ $_line =~ not\ found ]]; then
dfatal "Missing a shared library required by $_bin."
dfatal "Run \"ldd $_bin\" to find out what it is."
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dfatal "dracut cannot create an initrd."
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exit 1
fi
2011-05-12 13:03:30 +04:00
[[ $_line =~ $_so_regex ]] || continue
_file=${BASH_REMATCH[1]}
2011-10-21 12:09:55 +04:00
[[ -e ${initdir}/$_file ]] && continue
2011-05-10 16:36:23 +04:00
# See if we are loading an optimized version of a shared lib.
2011-05-12 13:03:30 +04:00
if [[ $_file =~ $_lib_regex ]]; then
2012-02-02 21:25:49 +04:00
_tlibdir=${BASH_REMATCH[1]}
_base=${_file##*/}
# Prefer nosegneg libs to unoptimized ones.
2012-02-07 20:14:23 +04:00
for _f in "$_tlibdir/i686/nosegneg"; do
2011-05-12 13:03:30 +04:00
[[ -e $_f/$_base ]] || continue
2012-02-02 21:25:49 +04:00
inst_library $_f/$_base
2010-09-10 17:23:06 +04:00
break
done
2011-05-10 16:36:23 +04:00
fi
2012-02-02 21:25:49 +04:00
inst_library "$_file"
2009-03-09 11:17:41 +03:00
done
2011-05-10 16:36:23 +04:00
# Install the binary if it wasn't handled in the above loop.
2011-05-12 13:03:30 +04:00
[[ -z $_self ]] && inst_simple "$_bin" "$_target"
2009-02-13 15:42:28 +03:00
}
2008-12-18 00:57:43 +03:00
2009-02-13 15:42:28 +03:00
# same as above, except for shell scripts.
# If your shell script does not start with shebang, it is not a shell script.
inst_script() {
2011-10-21 12:09:55 +04:00
local _bin
_bin=$(find_binary "$1") || return 1
2011-10-21 14:33:05 +04:00
shift
2011-05-12 13:03:30 +04:00
local _line _shebang_regex
2011-10-21 12:09:55 +04:00
read -r -n 80 _line <"$_bin"
2009-05-20 11:03:01 +04:00
# If debug is set, clean unprintable chars to prevent messing up the term
2011-05-12 13:03:30 +04:00
[[ $debug ]] && _line=$(echo -n "$_line" | tr -c -d '[:print:][:space:]')
_shebang_regex='(#! *)(/[^ ]+).*'
[[ $_line =~ $_shebang_regex ]] || return 1
2011-11-01 23:13:57 +04:00
inst "${BASH_REMATCH[2]}" && inst_simple "$_bin" "$@"
2008-12-18 00:57:43 +03:00
}
2009-02-13 15:42:28 +03:00
# same as above, but specialized for symlinks
inst_symlink() {
2012-02-07 20:15:11 +04:00
local _src=$1 _target=${2:-$1} _realsrc
2011-10-21 12:09:55 +04:00
strstr "$1" "/" || return 1
2009-02-13 15:42:28 +03:00
[[ -L $1 ]] || return 1
2012-02-07 20:15:11 +04:00
[[ -L $initdir/$_target ]] && return 0
2011-05-12 13:03:30 +04:00
_realsrc=$(readlink -f "$_src")
2012-02-07 20:15:11 +04:00
[[ -d ${_target%/*} ]] && _target=$(readlink -f ${_target%/*})/${_target##*/}
2011-05-20 01:18:47 +04:00
if [[ -d $_realsrc ]]; then
inst_dir "$_realsrc"
else
2012-02-07 20:15:11 +04:00
{
local _t
_t=${2:-$1}
_t="${_t%/*}"
[[ $_t ]] && inst_dir "$_t"
inst "$_realsrc"
}
2011-05-20 01:18:47 +04:00
fi
if [[ -e "${_src}" ]]; then
2012-02-07 20:15:11 +04:00
ln -sfn $(convert_abs_rel "${_target}" "${_realsrc}") "$initdir/$_target"
2011-05-20 01:18:47 +04:00
else
2012-02-07 20:15:11 +04:00
ln -sfn "$_realsrc" "$initdir/$_target"
2011-05-20 01:18:47 +04:00
fi
2009-02-13 15:42:28 +03:00
}
2011-12-17 04:35:08 +04:00
# attempt to install any programs specified in a udev rule
inst_rule_programs() {
local _prog _bin
if grep -qE 'PROGRAM==?"[^ "]+' "$1"; then
for _prog in $(grep -E 'PROGRAM==?"[^ "]+' "$1" | sed -r 's/.*PROGRAM==?"([^ "]+).*/\1/'); do
if [ -x /lib/udev/$_prog ]; then
_bin=/lib/udev/$_prog
else
_bin=$(find_binary "$_prog") || {
dinfo "Skipping program $_prog using in udev rule $(basename $1) as it cannot be found"
continue;
}
fi
#dinfo "Installing $_bin due to it's use in the udev rule $(basename $1)"
dracut_install "$_bin"
done
fi
}
2009-02-13 15:43:26 +03:00
# udev rules always get installed in the same place, so
# create a function to install them to make life simpler.
2011-03-25 17:56:46 +03:00
inst_rules() {
2011-05-12 13:03:30 +04:00
local _target=/etc/udev/rules.d _rule _found
2010-07-05 13:25:21 +04:00
2009-09-27 08:33:41 +04:00
inst_dir "/lib/udev/rules.d"
2011-05-12 13:03:30 +04:00
inst_dir "$_target"
for _rule in "$@"; do
2011-09-22 18:14:38 +04:00
if [ "${rule#/}" = "$rule" ]; then
2011-09-22 17:43:34 +04:00
for r in /lib/udev/rules.d /etc/udev/rules.d; do
if [[ -f $r/$_rule ]]; then
_found="$r/$_rule"
inst_simple "$_found"
2011-12-17 04:35:08 +04:00
inst_rule_programs "$_found"
2011-09-22 17:43:34 +04:00
fi
done
fi
2011-03-25 15:05:05 +03:00
for r in '' ./ $dracutbasedir/rules.d/; do
2011-05-12 13:03:30 +04:00
if [[ -f ${r}$_rule ]]; then
_found="${r}$_rule"
inst_simple "$_found" "$_target/${_found##*/}"
2011-12-17 04:35:08 +04:00
inst_rule_programs "$_found"
2011-03-25 15:05:05 +03:00
fi
done
2011-05-12 13:03:30 +04:00
[[ $_found ]] || dinfo "Skipping udev rule: $_rule"
2009-02-13 15:43:26 +03:00
done
}
2009-02-13 15:42:28 +03:00
# general purpose installation function
# Same args as above.
2009-02-13 15:42:15 +03:00
inst() {
2011-05-12 13:03:30 +04:00
local _x
2009-09-14 21:33:54 +04:00
case $# in
1) ;;
2010-08-14 23:23:24 +04:00
2) [[ ! $initdir && -d $2 ]] && export initdir=$2
2010-09-10 17:23:06 +04:00
[[ $initdir = $2 ]] && set $1;;
2011-03-25 17:56:46 +03:00
3) [[ -z $initdir ]] && export initdir=$2
2010-09-10 17:23:06 +04:00
set $1 $3;;
2011-03-25 17:56:47 +03:00
*) dfatal "inst only takes 1 or 2 or 3 arguments"
2010-09-10 17:23:06 +04:00
exit 1;;
2009-09-14 21:33:54 +04:00
esac
2011-05-12 13:03:30 +04:00
for _x in inst_symlink inst_script inst_binary inst_simple; do
$_x "$@" && return 0
2009-02-13 15:42:28 +03:00
done
return 1
2008-12-18 00:57:43 +03:00
}
2011-03-25 15:31:34 +03:00
[[ $hookdirs ]] || {
hookdirs="cmdline pre-udev pre-trigger netroot initqueue pre-mount"
2012-02-07 22:23:22 +04:00
hookdirs+=" pre-pivot mount emergency shutdown-emergency shutdown cleanup"
2011-03-25 15:31:34 +03:00
export hookdirs
}
2009-02-13 15:43:29 +03:00
# install function specialized for hooks
# $1 = type of hook, $2 = hook priority (lower runs first), $3 = hook
# All hooks should be POSIX/SuS compliant, they will be sourced by init.
inst_hook() {
2009-05-23 06:24:31 +04:00
if ! [[ -f $3 ]]; then
2011-03-25 17:56:47 +03:00
dfatal "Cannot install a hook ($3) that does not exist."
dfatal "Aborting initrd creation."
2010-09-10 17:23:06 +04:00
exit 1
2009-05-23 06:24:31 +04:00
elif ! strstr "$hookdirs" "$1"; then
2011-05-10 13:39:10 +04:00
dfatal "No such hook type $1. Aborting initrd creation."
2010-09-10 17:23:06 +04:00
exit 1
2009-05-23 06:24:31 +04:00
fi
2011-03-25 15:31:34 +03:00
inst_simple "$3" "/lib/dracut/hooks/${1}/${2}${3##*/}"
2009-02-13 15:43:29 +03:00
}
2011-08-21 14:47:13 +04:00
# install any of listed files
#
# If first argument is '-d' and second some destination path, first accessible
# source is installed into this path, otherwise it will installed in the same
# path as source. If none of listed files was installed, function return 1.
# On first successful installation it returns with 0 status.
#
# Example:
#
# inst_any -d /bin/foo /bin/bar /bin/baz
#
# Lets assume that /bin/baz exists, so it will be installed as /bin/foo in
# initramfs.
inst_any() {
local to f
[[ $1 = '-d' ]] && to="$2" && shift 2
for f in "$@"; do
if [[ -e $f ]]; then
[[ $to ]] && inst "$f" "$to" && return 0
inst "$f" && return 0
fi
done
return 1
}
2009-02-13 15:43:24 +03:00
dracut_install() {
2011-05-12 13:03:30 +04:00
local _optional=no
2011-03-25 17:56:46 +03:00
if [[ $1 = '-o' ]]; then
2011-05-12 13:03:30 +04:00
_optional=yes
2010-09-10 17:23:06 +04:00
shift
2009-08-15 16:55:59 +04:00
fi
2009-02-13 15:43:24 +03:00
while (($# > 0)); do
2010-09-10 17:23:06 +04:00
if ! inst "$1" ; then
2011-05-12 13:03:30 +04:00
if [[ $_optional = yes ]]; then
2011-07-22 16:18:23 +04:00
dinfo "Skipping program $1 as it cannot be found and is" \
2011-03-25 17:56:47 +03:00
"flagged to be optional"
2010-09-10 17:23:06 +04:00
else
2011-03-25 17:56:47 +03:00
dfatal "Failed to install $1"
2010-09-10 17:23:06 +04:00
exit 1
2009-08-15 16:55:59 +04:00
fi
2010-09-10 17:23:06 +04:00
fi
shift
2009-02-13 15:43:24 +03:00
done
}
2010-07-01 23:17:37 +04:00
# install function decompressing the target and handling symlinks
# $@ = list of compressed (gz or bz2) files or symlinks pointing to such files
#
# Function install targets in the same paths inside overlay but decompressed
# and without extensions (.gz, .bz2).
inst_decompress() {
2011-05-12 13:03:30 +04:00
local _src _dst _realsrc _realdst _cmd
2010-07-01 23:17:37 +04:00
2011-05-12 13:03:30 +04:00
for _src in $@
2010-07-01 23:17:37 +04:00
do
2011-05-12 13:03:30 +04:00
case ${_src} in
*.gz) _cmd='gzip -d' ;;
*.bz2) _cmd='bzip2 -d' ;;
2010-07-01 23:17:37 +04:00
*) return 1 ;;
esac
2011-05-12 13:03:30 +04:00
if [[ -L ${_src} ]]
2010-07-01 23:17:37 +04:00
then
2011-05-12 13:03:30 +04:00
_realsrc="$(readlink -f ${_src})" # symlink target with extension
_dst="${_src%.*}" # symlink without extension
_realdst="${_realsrc%.*}" # symlink target without extension
mksubdirs "${initdir}/${_src}"
2010-07-01 23:17:37 +04:00
# Create symlink without extension to target without extension.
2011-05-12 13:03:30 +04:00
ln -sfn "${_realdst}" "${initdir}/${_dst}"
2010-07-01 23:17:37 +04:00
fi
# If the source is symlink we operate on its target.
2011-05-12 13:03:30 +04:00
[[ ${_realsrc} ]] && _src=${_realsrc}
inst ${_src}
2010-07-01 23:17:37 +04:00
# Decompress with chosen tool. We assume that tool changes name e.g.
# from 'name.gz' to 'name'.
2011-05-12 13:03:30 +04:00
${_cmd} "${initdir}${_src}"
2010-07-01 23:17:37 +04:00
done
}
# It's similar to above, but if file is not compressed, performs standard
# install.
# $@ = list of files
inst_opt_decompress() {
2011-05-12 13:03:30 +04:00
local _src
2010-07-01 23:17:37 +04:00
2011-05-12 13:03:30 +04:00
for _src in $@
2010-07-01 23:17:37 +04:00
do
2011-05-12 13:03:30 +04:00
inst_decompress "${_src}" || inst "${_src}"
2010-07-01 23:17:37 +04:00
done
}
2011-02-02 15:34:58 +03:00
module_check() {
2011-05-12 13:03:30 +04:00
local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
local _ret
2011-08-01 06:01:23 +04:00
local _forced=0
local _hostonly=$hostonly
[ $# -eq 2 ] && _forced=$2
2011-05-12 13:03:30 +04:00
[[ -d $_moddir ]] || return 1
if [[ ! -f $_moddir/module-setup.sh ]]; then
2011-02-02 15:34:58 +03:00
# if we do not have a check script, we are unconditionally included
2011-05-12 13:03:30 +04:00
[[ -x $_moddir/check ]] || return 0
2011-08-01 06:01:23 +04:00
[ $_forced -ne 0 ] && unset hostonly
2011-05-12 13:03:30 +04:00
$_moddir/check $hostonly
2011-08-01 06:01:23 +04:00
_ret=$?
2011-02-02 15:34:58 +03:00
else
unset check depends install installkernel
2011-05-12 13:03:30 +04:00
. $_moddir/module-setup.sh
2011-02-02 15:34:58 +03:00
is_func check || return 0
2011-08-01 06:01:23 +04:00
[ $_forced -ne 0 ] && unset hostonly
check $hostonly
2011-05-12 13:03:30 +04:00
_ret=$?
2011-02-02 15:34:58 +03:00
unset check depends install installkernel
2009-05-24 09:29:44 +04:00
fi
2011-08-01 06:01:23 +04:00
hostonly=$_hostonly
return $_ret
2009-05-24 09:29:44 +04:00
}
2011-02-02 15:34:58 +03:00
module_depends() {
2011-05-12 13:03:30 +04:00
local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
local _ret
[[ -d $_moddir ]] || return 1
if [[ ! -f $_moddir/module-setup.sh ]]; then
2011-02-02 15:34:58 +03:00
# if we do not have a check script, we have no deps
2011-05-12 13:03:30 +04:00
[[ -x $_moddir/check ]] || return 0
$_moddir/check -d
2011-02-02 15:34:58 +03:00
return $?
else
unset check depends install installkernel
2011-05-12 13:03:30 +04:00
. $_moddir/module-setup.sh
2011-02-02 15:34:58 +03:00
is_func depends || return 0
depends
2011-05-12 13:03:30 +04:00
_ret=$?
2011-02-02 15:34:58 +03:00
unset check depends install installkernel
2011-05-12 13:03:30 +04:00
return $_ret
2009-07-22 14:43:26 +04:00
fi
2009-05-24 09:29:44 +04:00
}
2011-02-02 15:34:58 +03:00
module_install() {
2011-05-12 13:03:30 +04:00
local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
local _ret
[[ -d $_moddir ]] || return 1
if [[ ! -f $_moddir/module-setup.sh ]]; then
[[ -x $_moddir/install ]] && . "$_moddir/install"
2011-02-02 15:34:58 +03:00
return $?
else
unset check depends install installkernel
2011-05-12 13:03:30 +04:00
. $_moddir/module-setup.sh
2011-02-02 15:34:58 +03:00
is_func install || return 0
install
2011-05-12 13:03:30 +04:00
_ret=$?
2011-02-02 15:34:58 +03:00
unset check depends install installkernel
2011-05-12 13:03:30 +04:00
return $_ret
2011-02-02 15:34:58 +03:00
fi
}
module_installkernel() {
2011-05-12 13:03:30 +04:00
local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
local _ret
[[ -d $_moddir ]] || return 1
if [[ ! -f $_moddir/module-setup.sh ]]; then
[[ -x $_moddir/installkernel ]] && . "$_moddir/installkernel"
2011-02-02 15:34:58 +03:00
return $?
else
unset check depends install installkernel
2011-05-12 13:03:30 +04:00
. $_moddir/module-setup.sh
2011-02-02 15:34:58 +03:00
is_func installkernel || return 0
installkernel
2011-05-12 13:03:30 +04:00
_ret=$?
2011-02-02 15:34:58 +03:00
unset check depends install installkernel
2011-05-12 13:03:30 +04:00
return $_ret
2011-02-02 15:34:58 +03:00
fi
}
2011-12-20 10:09:57 +04:00
module_check_mount() {
local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
local _ret
mount_needs=1
[[ -d $_moddir ]] || return 1
if [[ ! -f $_moddir/module-setup.sh ]]; then
# if we do not have a check script, we are unconditionally included
[[ -x $_moddir/check ]] || return 0
mount_needs=1 $_moddir/check 0
_ret=$?
else
unset check depends install installkernel
. $_moddir/module-setup.sh
is_func check || return 1
check 0
_ret=$?
unset check depends install installkernel
fi
unset mount_needs
return $_ret
}
check_mount() {
local _mod=$1
local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
local _ret
local _moddep
# If we are already scheduled to be loaded, no need to check again.
strstr " $mods_to_load " " $_mod " && return 0
strstr " $mods_checked_as_dep " " $_mod " && return 1
# This should never happen, but...
[[ -d $_moddir ]] || return 1
[[ $2 ]] || mods_checked_as_dep+=" $_mod "
strstr " $omit_dracutmodules " " $_mod " && return 1
if [ "${#host_fs_types[*]}" -gt 0 ]; then
module_check_mount $_mod || return 1
else
# skip this module
return 1
fi
for _moddep in $(module_depends $_mod); do
# handle deps as if they were manually added
strstr " $add_dracutmodules " " $_moddep " || \
add_dracutmodules+=" $_moddep "
strstr " $force_add_dracutmodules " " $_moddep " || \
force_add_dracutmodules+=" $_moddep "
# if a module we depend on fail, fail also
check_module $_moddep || return 1
done
strstr " $mods_to_load " " $_mod " || \
mods_to_load+=" $_mod "
return 0
}
2011-02-02 15:34:58 +03:00
check_module() {
2011-05-12 13:03:30 +04:00
local _mod=$1
local _moddir=$(echo ${dracutbasedir}/modules.d/??${1})
local _ret
local _moddep
2011-02-02 15:34:58 +03:00
# If we are already scheduled to be loaded, no need to check again.
2011-05-12 13:03:30 +04:00
strstr " $mods_to_load " " $_mod " && return 0
strstr " $mods_checked_as_dep " " $_mod " && return 1
2011-02-02 15:34:58 +03:00
# This should never happen, but...
2011-05-12 13:03:30 +04:00
[[ -d $_moddir ]] || return 1
2011-02-02 15:34:58 +03:00
2011-05-12 13:03:30 +04:00
[[ $2 ]] || mods_checked_as_dep+=" $_mod "
2011-02-02 15:34:58 +03:00
2011-05-12 13:03:30 +04:00
strstr " $omit_dracutmodules " " $_mod " && return 1
2011-02-02 15:34:58 +03:00
2011-08-01 06:01:23 +04:00
if strstr " $dracutmodules $add_dracutmodules $force_add_dracutmodules" " $_mod "; then
if strstr " $force_add_dracutmodules" " $_mod"; then
module_check $_mod 1; ret=$?
else
module_check $_mod 0; ret=$?
fi
2011-02-02 15:34:58 +03:00
# explicit module, so also accept ret=255
[[ $ret = 0 || $ret = 255 ]] || return 1
else
# module not in our list
if [[ $dracutmodules = all ]]; then
# check, if we can and should install this module
2011-05-12 13:03:30 +04:00
module_check $_mod || return 1
2010-09-10 17:23:06 +04:00
else
2011-02-02 15:34:58 +03:00
# skip this module
return 1
2009-07-02 13:57:23 +04:00
fi
2011-02-02 15:34:58 +03:00
fi
2010-07-27 13:51:27 +04:00
2011-05-12 13:03:30 +04:00
for _moddep in $(module_depends $_mod); do
2011-02-02 15:34:58 +03:00
# handle deps as if they were manually added
2011-05-12 13:03:30 +04:00
strstr " $add_dracutmodules " " $_moddep " || \
add_dracutmodules+=" $_moddep "
2011-08-01 06:01:23 +04:00
strstr " $force_add_dracutmodules " " $_moddep " || \
force_add_dracutmodules+=" $_moddep "
2011-02-02 15:34:58 +03:00
# if a module we depend on fail, fail also
2011-05-12 13:03:30 +04:00
check_module $_moddep || return 1
2009-05-24 09:29:44 +04:00
done
2010-05-26 19:42:57 +04:00
2011-05-12 13:03:30 +04:00
strstr " $mods_to_load " " $_mod " || \
mods_to_load+=" $_mod "
2011-02-02 15:34:58 +03:00
return 0
}
2011-12-20 10:09:57 +04:00
for_each_module_dir() {
2011-05-12 13:03:30 +04:00
local _modcheck
local _mod
local _moddir
2011-12-20 10:09:57 +04:00
local _func
_func=$1
2011-05-12 13:03:30 +04:00
for _moddir in "$dracutbasedir/modules.d"/[0-9][0-9]*; do
_mod=${_moddir##*/}; _mod=${_mod#[0-9][0-9]}
2011-12-20 10:09:57 +04:00
$_func $_mod 1
2010-05-26 19:42:57 +04:00
done
2011-03-07 15:08:13 +03:00
# Report any missing dracut modules, the user has specified
2011-08-01 06:01:23 +04:00
_modcheck="$add_dracutmodules $force_add_dracutmodules"
2011-05-12 13:03:30 +04:00
[[ $dracutmodules != all ]] && _modcheck="$m $dracutmodules"
for _mod in $_modcheck; do
strstr "$mods_to_load" "$_mod" && continue
strstr "$omit_dracutmodules" "$_mod" && continue
derror "Dracut module \"$_mod\" cannot be found."
2011-03-07 15:08:13 +03:00
done
2009-05-24 09:29:44 +04:00
}
2009-08-15 23:17:19 +04:00
# Install a single kernel module along with any firmware it may require.
# $1 = full path to kernel module to install
install_kmod_with_fw() {
2011-03-07 15:09:25 +03:00
# no need to go further if the module is already installed
2011-03-25 17:56:46 +03:00
[[ -e "${initdir}/lib/modules/$kernel/${1##*/lib/modules/$kernel/}" ]] \
&& return 0
inst_simple "$1" "/lib/modules/$kernel/${1##*/lib/modules/$kernel/}" \
|| return $?
2011-08-29 00:24:58 +04:00
local _modname=${1##*/} _fwdir _found _fw
_modname=${_modname%.ko*}
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for _fw in $(modinfo -k $kernel -F firmware $1 2>/dev/null); do
_found=''
for _fwdir in $fw_dir; do
if [[ -d $_fwdir && -f $_fwdir/$_fw ]]; then
inst_simple "$_fwdir/$_fw" "/lib/firmware/$_fw"
_found=yes
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fi
done
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if [[ $_found != yes ]]; then
if ! grep -qe "\<${_modname//-/_}\>" /proc/modules; then
dinfo "Possible missing firmware \"${_fw}\" for kernel module" \
"\"${_modname}.ko\""
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else
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dwarn "Possible missing firmware \"${_fw}\" for kernel module" \
"\"${_modname}.ko\""
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fi
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fi
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done
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return 0
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}
# Do something with all the dependencies of a kernel module.
# Note that kernel modules depend on themselves using the technique we use
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# $1 = function to call for each dependency we find
# It will be passed the full path to the found kernel module
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# $2 = module to get dependencies for
# rest of args = arguments to modprobe
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# _fderr specifies FD passed from surrounding scope
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for_each_kmod_dep() {
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local _func=$1 _kmod=$2 _cmd _modpath _options _found=0
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shift 2
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modprobe "$@" --ignore-install --show-depends $_kmod 2>&${_fderr} | (
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while read _cmd _modpath _options; do
[[ $_cmd = insmod ]] || continue
$_func ${_modpath} || exit $?
_found=1
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done
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[[ $_found -eq 0 ]] && exit 1
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exit 0
)
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}
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# filter kernel modules to install certain modules that meet specific
# requirements.
# $1 = search only in subdirectory of /kernel/$1
# $2 = function to call with module name to filter.
# This function will be passed the full path to the module to test.
# The behaviour of this function can vary depending on whether $hostonly is set.
# If it is, we will only look at modules that are already in memory.
# If it is not, we will look at all kernel modules
# This function returns the full filenames of modules that match $1
filter_kernel_modules_by_path () (
local _modname _filtercmd
if ! [[ $hostonly ]]; then
_filtercmd='find "$srcmods/kernel/$1" "$srcmods/extra"'
_filtercmd+=' "$srcmods/weak-updates" -name "*.ko" -o -name "*.ko.gz"'
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_filtercmd+=' -o -name "*.ko.xz"'
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_filtercmd+=' 2>/dev/null'
else
_filtercmd='cut -d " " -f 1 </proc/modules|xargs modinfo -F filename '
_filtercmd+='-k $kernel 2>/dev/null'
fi
for _modname in $(eval $_filtercmd); do
case $_modname in
*.ko) "$2" "$_modname" && echo "$_modname";;
*.ko.gz) gzip -dc "$_modname" > $initdir/$$.ko
$2 $initdir/$$.ko && echo "$_modname"
rm -f $initdir/$$.ko
;;
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*.ko.xz) xz -dc "$_modname" > $initdir/$$.ko
$2 $initdir/$$.ko && echo "$_modname"
rm -f $initdir/$$.ko
;;
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esac
done
)
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find_kernel_modules_by_path () (
if ! [[ $hostonly ]]; then
find "$srcmods/kernel/$1" "$srcmods/extra" "$srcmods/weak-updates" \
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-name "*.ko" -o -name "*.ko.gz" -o -name "*.ko.xz" 2>/dev/null
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else
cut -d " " -f 1 </proc/modules \
| xargs modinfo -F filename -k $kernel 2>/dev/null
fi
)
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filter_kernel_modules () {
filter_kernel_modules_by_path drivers "$1"
}
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find_kernel_modules () {
find_kernel_modules_by_path drivers
}
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# install kernel modules along with all their dependencies.
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instmods() {
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[[ $no_kernel = yes ]] && return
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# called [sub]functions inherit _fderr
local _fderr=9
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function inst1mod() {
local _mod="$1"
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case $_mod in
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=*)
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# This introduces 2 incompatible meanings for =* arguments
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# to instmods. We need to decide which one to keep.
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if [[ $_mod = =ata && -f $srcmods/modules.block ]]; then
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( [[ "$_mpargs" ]] && echo $_mpargs
egrep 'ata|ahci' "${srcmods}/modules.block" ) \
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| instmods
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elif [ -f $srcmods/modules.${_mod#=} ]; then
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( [[ "$_mpargs" ]] && echo $_mpargs
cat "${srcmods}/modules.${_mod#=}" ) \
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| instmods
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else
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( [[ "$_mpargs" ]] && echo $_mpargs
find "$srcmods" -path "*/${_mod#=}/*" ) \
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| instmods
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fi
;;
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--*) _mpargs+=" $_mod" ;;
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i2o_scsi) return ;; # Do not load this diagnostic-only module
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*) _mod=${_mod##*/}
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# if we are already installed, skip this module and go on
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# to the next one.
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[[ -f $initdir/$1 ]] && return
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# If we are building a host-specific initramfs and this
# module is not already loaded, move on to the next one.
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[[ $hostonly ]] && ! grep -qe "\<${_mod//-/_}\>" /proc/modules \
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&& ! echo $add_drivers | grep -qe "\<${_mod}\>" \
&& return
2008-12-18 00:57:43 +03:00
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# We use '-d' option in modprobe only if modules prefix path
# differs from default '/'. This allows us to use Dracut with
# old version of modprobe which doesn't have '-d' option.
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local _moddirname=${srcmods%%/lib/modules/*}
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[[ -n ${_moddirname} ]] && _moddirname="-d ${_moddirname}/"
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# ok, load the module, all its dependencies, and any firmware
# it may require
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for_each_kmod_dep install_kmod_with_fw $_mod \
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--set-version $kernel ${_moddirname} $_mpargs
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((_ret+=$?))
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;;
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esac
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}
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function instmods_1() {
local _ret=0 _mod _mpargs
if (($# == 0)); then # filenames from stdin
while read _mod; do
inst1mod "${_mod%.ko*}"
done
fi
while (($# > 0)); do # filenames as arguments
inst1mod ${1%.ko*}
shift
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done
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return $_ret
}
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# Capture all stderr from modprobe to _fderr. We could use {var}>...
# redirections, but that would make dracut require bash4 at least.
eval "( instmods_1 \"\$@\" ) ${_fderr}>&1" \
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| egrep -v 'FATAL: Module .* not found.' | derror
return $?
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}