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#!/bin/bash
create_udev_rule() {
local ccw=$1
local wwpn=$2
local lun=$3
local _rule=/etc/udev/rules.d/51-zfcp-${ccw}.rules
local _cu_type _dev_type
if [ -x /sbin/cio_ignore ] && cio_ignore -i "$ccw" > /dev/null; then
cio_ignore -r "$ccw"
fi
if [ -e /sys/bus/ccw/devices/"${ccw}" ]; then
read -r _cu_type < /sys/bus/ccw/devices/"${ccw}"/cutype
read -r _dev_type < /sys/bus/ccw/devices/"${ccw}"/devtype
fi
if [ "$_cu_type" != "1731/03" ]; then
return 0
fi
if [ "$_dev_type" != "1732/03" ] && [ "$_dev_type" != "1732/04" ]; then
return 0
fi
[ -z "$wwpn" ] || [ -z "$lun" ] && return
m=$(sed -n "/.*${wwpn}.*${lun}.*/p" "$_rule")
if [ -z "$m" ]; then
cat >> "$_rule" << EOF
ACTION=="add", KERNEL=="rport-*", ATTR{port_name}=="$wwpn", SUBSYSTEMS=="ccw", KERNELS=="$ccw", ATTR{[ccw/$ccw]$wwpn/unit_add}="$lun"
EOF
fi
}
if [[ -f /sys/firmware/ipl/ipl_type ]] \
&& [[ $(< /sys/firmware/ipl/ipl_type) == "fcp" ]]; then
(
read -r _wwpn < /sys/firmware/ipl/wwpn
read -r _lun < /sys/firmware/ipl/lun
read -r _ccw < /sys/firmware/ipl/device
create_udev_rule "$_ccw" "$_wwpn" "$_lun"
)
fi
for zfcp_arg in $(getargs rd.zfcp); do
(
OLDIFS="$IFS"
IFS=","
# shellcheck disable=SC2086
set $zfcp_arg
IFS="$OLDIFS"
create_udev_rule "$1" "$2" "$3"
)
done
for zfcp_arg in $(getargs root=) $(getargs resume=); do
(
case $zfcp_arg in
/dev/disk/by-path/ccw-*)
ccw_arg=${zfcp_arg##*/}
;;
esac
if [ -n "$ccw_arg" ]; then
OLDIFS="$IFS"
IFS="-"
set -- "$ccw_arg"
IFS="$OLDIFS"
_wwpn=${4%:*}
_lun=${4#*:}
create_udev_rule "$2" "$wwpn" "$lun"
fi
)
done
|
