dracut/modules.d/95iscsi/iscsiroot

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#!/bin/sh
. /lib/dracut-lib
PATH=$PATH:/sbin:/usr/sbin
# XXX needs error handling like ifup/dhclient-script
if getarg rdnetdebug; then
exec > /tmp/iscsiroot.$1.$$.out
exec 2>> /tmp/iscsiroot.$1.$$.out
set -x
fi
# read static conf settings
for conf in conf/conf.d/*; do
[ -f ${conf} ] && . ${conf}
done
# root is in the form root=iscsi:[<servername>]:[<protocol>]:[<port>]:[<LUN>]:<targetname>
netif="$1"
root="$2"
if [ $root = ${root#iscsi:} ]; then
root=$(getarg iscsiroot)
else
root=${root#iscsi:}
fi
if getarg iscsi_firmware >/dev/null; then
modprobe iscsi_tcp
modprobe crc32c
iscsistart -b
else
OLDIFS="$IFS"
IFS=:
set $root
iscsi_target_ip=$1; shift
iscsi_protocol=$1; shift # ignored
iscsi_target_port=$1; shift
iscsi_lun=$1; shift
iscsi_target_name=$*
IFS="$OLDIFS"
# override conf settings by command line options
arg=$(getarg iscsi_initiator)
[ -n "$arg" ] && iscsi_initiator=$arg
arg=$(getarg iscsi_initiator)
[ -n "$arg" ] && iscsi_target_name=$arg
arg=$(getarg iscsi_target_ip)
[ -n "$arg" ] && iscsi_target_ip=$arg
arg=$(getarg iscsi_target_port)
[ -n "$arg" ] && iscsi_target_port=$arg
arg=$(getarg iscsi_target_group)
[ -n "$arg" ] && iscsi_target_group=$arg
arg=$(getarg iscsi_username)
[ -n "$arg" ] && iscsi_username=$arg
arg=$(getarg iscsi_password)
[ -n "$arg" ] && iscsi_password=$arg
arg=$(getarg iscsi_in_username)
[ -n "$arg" ] && iscsi_in_username=$arg
arg=$(getarg iscsi_in_password)
[ -n "$arg" ] && iscsi_in_password=$arg
getarg ro && iscsirw=ro
getarg rw && iscsirw=rw
fsopts=${fsopts+$fsopts,}${iscsirw}
modprobe iscsi_tcp
modprobe crc32c
if [ -z $iscsi_initiator ]; then
[ -f /etc/initiatorname.iscsi ] && . /etc/initiatorname.iscsi
[ -f /etc/iscsi/initiatorname.iscsi ] && . /etc/iscsi/initiatorname.iscsi
iscsi_initiator=$InitiatorName
fi
if [ -z $iscsi_target_port ]; then
iscsi_target_port=3260
fi
if [ -z $iscsi_target_group ]; then
iscsi_target_group=1
fi
if [ -z $iscsi_initiator ]; then
[ -f /tmp/net.$netif.dhcpopts ] && . /tmp/net.$netif.dhcpopts
hostname=$new_host_name
[ -z "$hostname" ] && hostname=arpa.in-addr.$new_ip_address
OLDIFS="$IFS"
IFS=.
unset revname
for i in $hostname; do
revname=${i}${revname+.$revname}
done
IFS="$OLDIFS"
iscsi_initiator=iqn.2009-01.$revname
fi
echo "InitiatorName='$iscsi_initiator'" > /dev/.initiatorname.iscsi
# FIXME $iscsi_lun?? $iscsi_protocol??
iscsistart -i $iscsi_initiator -t $iscsi_target_name \
-g $iscsi_target_group -a $iscsi_target_ip \
-p $iscsi_target_port \
${iscsi_username+-u $iscsi_username} \
${iscsi_password+-w $iscsi_password} \
${iscsi_in_username+-U $iscsi_in_username} \
${iscsi_in_password+-W $iscsi_in_password}
# now we have a root filesystem somewhere in /dev/sda*
# let the normal block handler handle root=
fi
exit 0