# returns OK if $1 contains $2
strstr() {
[ "${1#*$2*}" != "$1" ]
}
# replaces all occurrences of 'search' in 'str' with 'replacement'
#
# str_replace str search replacement
#
# example:
# str_replace ' one two three ' ' ' '_'
str_replace() {
local in="$1"; local s="$2"; local r="$3"
local out=''
while strstr "${in}" "$s"; do
chop="${in%%$s*}"
out="${out}${chop}$r"
in="${in#*$s}"
done
echo "${out}${in}"
}
getarg() {
set +x
local o line
if [ -z "$CMDLINE" ]; then
if [ -e /etc/cmdline ]; then
while read line; do
CMDLINE_ETC="$CMDLINE_ETC $line";
done </etc/cmdline;
fi
read CMDLINE </proc/cmdline;
CMDLINE="$CMDLINE $CMDLINE_ETC"
fi
for o in $CMDLINE; do
[ "$o" = "$1" ] && { [ "$RDDEBUG" = "yes" ] && set -x; return 0; }
[ "${o%%=*}" = "${1%=}" ] && { echo ${o#*=}; [ "$RDDEBUG" = "yes" ] && set -x; return 0; }
done
[ "$RDDEBUG" = "yes" ] && set -x
return 1
}
getargs() {
set +x
local o line found
if [ -z "$CMDLINE" ]; then
if [ -e /etc/cmdline ]; then
while read line; do
CMDLINE_ETC="$CMDLINE_ETC $line";
done </etc/cmdline;
fi
read CMDLINE </proc/cmdline;
CMDLINE="$CMDLINE $CMDLINE_ETC"
fi
for o in $CMDLINE; do
[ "$o" = "$1" ] && { [ "$RDDEBUG" = "yes" ] && set -x; return 0; }
if [ "${o%%=*}" = "${1%=}" ]; then
echo -n "${o#*=} ";
found=1;
fi
done
[ -n "$found" ] && { [ "$RDDEBUG" = "yes" ] && set -x; return 0; }
[ "$RDDEBUG" = "yes" ] && set -x
return 1;
}
setdebug() {
if [ -z "$RDDEBUG" ]; then
if [ -e /proc/cmdline ]; then
RDDEBUG=no
if getarg rdinitdebug || getarg rdnetdebug; then
RDDEBUG=yes
fi
fi
fi
[ "$RDDEBUG" = "yes" ] && set -x
}
setdebug
source_all() {
local f
[ "$1" ] && [ -d "/$1" ] || return
for f in "/$1"/*.sh; do [ -e "$f" ] && . "$f"; done
}
check_finished() {
local f
for f in /initqueue-finished/*.sh; do { [ -e "$f" ] && ( . "$f" ) ; } || return 1 ; done
return 0
}
source_conf() {
local f
[ "$1" ] && [ -d "/$1" ] || return
for f in "/$1"/*.conf; do [ -e "$f" ] && . "$f"; done
}
die() {
{
echo "<1>dracut: FATAL: $@";
echo "<1>dracut: Refusing to continue";
} > /dev/kmsg
{
echo "warn dracut: FATAL: \"$@\"";
echo "warn dracut: Refusing to continue";
echo "exit 1"
} >> /emergency/01-die.sh
> /.die
exit 1
}
fatal() {
check_quiet
echo "<4>dracut FATAL: $@" > /dev/kmsg
[ "$DRACUT_QUIET" != "yes" ] && \
echo "dracut FATAL: $@" >&2
}
check_quiet() {
if [ -z "$DRACUT_QUIET" ]; then
DRACUT_QUIET="yes"
getarg rdinfo && DRACUT_QUIET="no"
getarg quiet || DRACUT_QUIET="yes"
fi
}
warn() {
check_quiet
echo "<4>dracut Warning: $@" > /dev/kmsg
[ "$DRACUT_QUIET" != "yes" ] && \
echo "dracut Warning: $@" >&2
}
info() {
check_quiet
echo "<6>dracut: $@" > /dev/kmsg
[ "$DRACUT_QUIET" != "yes" ] && \
echo "dracut: $@"
}
vinfo() {
while read line; do
info $line;
done
}
check_occurances() {
# Count the number of times the character $ch occurs in $str
# Return 0 if the count matches the expected number, 1 otherwise
local str="$1"
local ch="$2"
local expected="$3"
local count=0
while [ "${str#*$ch}" != "${str}" ]; do
str="${str#*$ch}"
count=$(( $count + 1 ))
done
[ $count -eq $expected ]
}
incol2() {
local dummy check;
local file="$1";
local str="$2";
[ -z "$file" ] && return;
[ -z "$str" ] && return;
while read dummy check restofline; do
[ "$check" = "$str" ] && return 0
done < $file
return 1
}
udevsettle() {
[ -z "$UDEVVERSION" ] && UDEVVERSION=$(udevadm --version)
if [ $UDEVVERSION -ge 143 ]; then
udevadm settle --exit-if-exists=/initqueue/work $settle_exit_if_exists >/dev/null 2>&1
else
udevadm settle --timeout=30 >/dev/null 2>&1
fi
}
udevproperty() {
[ -z "$UDEVVERSION" ] && UDEVVERSION=$(udevadm --version)
if [ $UDEVVERSION -ge 143 ]; then
for i in "$@"; do udevadm control --property=$i; done
else
for i in "$@"; do udevadm control --env=$i; done
fi
}
wait_for_if_up() {
local cnt=0
while [ $cnt -lt 100 ]; do
li=$(ip link show $1)
[ -z "${li##*state UP*}" ] && return 0
sleep 0.1
cnt=$(($cnt+1))
done
return 1
}
# root=nfs:[<server-ip>:]<root-dir>[:<nfs-options>]
# root=nfs4:[<server-ip>:]<root-dir>[:<nfs-options>]
nfsroot_to_var() {
# strip nfs[4]:
local arg="$@:"
nfs="${arg%%:*}"
arg="${arg##$nfs:}"
# check if we have a server
if strstr "$arg" ':/*' ; then
server="${arg%%:/*}"
arg="/${arg##*:/}"
fi
path="${arg%%:*}"
# rest are options
options="${arg##$path}"
# strip leading ":"
options="${options##:}"
# strip ":"
options="${options%%:}"
# Does it really start with '/'?
[ -n "${path%%/*}" ] && path="error";
#Fix kernel legacy style separating path and options with ','
if [ "$path" != "${path#*,}" ] ; then
options=${path#*,}
path=${path%%,*}
fi
}
ip_to_var() {
local v=${1}:
local i
set --
while [ -n "$v" ]; do
if [ "${v#\[*:*:*\]:}" != "$v" ]; then
# handle IPv6 address
i="${v%%\]:*}"
i="${i##\[}"
set -- "$@" "$i"
v=${v#\[$i\]:}
else
set -- "$@" "${v%%:*}"
v=${v#*:}
fi
done
unset ip srv gw mask hostname dev autoconf
case $# in
0) autoconf="error" ;;
1) autoconf=$1 ;;
2) dev=$1; autoconf=$2 ;;
*) ip=$1; srv=$2; gw=$3; mask=$4; hostname=$5; dev=$6; autoconf=$7 ;;
esac
}
killproc() {
local exe="$(command -v $1)"
local sig=$2
local i
[ -x "$exe" ] || return 1
for i in /proc/[0-9]*; do
[ "$i" = "/proc/1" ] && continue
if [ -e "$i"/exe ] && [ "$i/exe" -ef "$exe" ] ; then
kill $sig ${i##*/}
fi
done
}
parse_iscsi_root()
{
local v
v=${1#iscsi:}
# extract authentication info
case "$v" in
*@*:*:*:*:*)
authinfo=${v%%@*}
v=${v#*@}
# allow empty authinfo to allow having an @ in iscsi_target_name like this:
# netroot=iscsi:@192.168.1.100::3260::iqn.2009-01.com.example:testdi@sk
if [ -n "$authinfo" ]; then
OLDIFS="$IFS"
IFS=:
set $authinfo
IFS="$OLDIFS"
if [ $# -gt 4 ]; then
warn "Wrong authentication info in iscsi: parameter!"
return 1
fi
iscsi_username=$1
iscsi_password=$2
if [ $# -gt 2 ]; then
iscsi_in_username=$3
iscsi_in_password=$4
fi
fi
;;
esac
# extract target ip
case "$v" in
[[]*[]]:*)
iscsi_target_ip=${v#[[]}
iscsi_target_ip=${iscsi_target_ip%%[]]*}
v=${v#[[]$iscsi_target_ip[]]:}
;;
*)
iscsi_target_ip=${v%%[:]*}
v=${v#$iscsi_target_ip:}
;;
esac
# extract target name
case "$v" in
*:iqn.*)
iscsi_target_name=iqn.${v##*:iqn.}
v=${v%:iqn.*}:
;;
*:eui.*)
iscsi_target_name=iqn.${v##*:eui.}
v=${v%:iqn.*}:
;;
*:naa.*)
iscsi_target_name=iqn.${v##*:naa.}
v=${v%:iqn.*}:
;;
*)
warn "Invalid iscii target name, should begin with 'iqn.' or 'eui.' or 'naa.'"
return 1
;;
esac
# parse the rest
OLDIFS="$IFS"
IFS=:
set $v
IFS="$OLDIFS"
iscsi_protocol=$1; shift # ignored
iscsi_target_port=$1; shift
if [ $# -eq 3 ]; then
iscsi_iface_name=$1; shift
fi
if [ $# -eq 2 ]; then
iscsi_netdev_name=$1; shift
fi
iscsi_lun=$1; shift
if [ $# -ne 0 ]; then
warn "Invalid parameter in iscsi: parameter!"
return 1
fi
}
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