130 lines
3.3 KiB
Bash
Executable File
130 lines
3.3 KiB
Bash
Executable File
#!/bin/sh
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#
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# This implementation is incomplete: Discovery mode is not implemented and
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# the argument handling doesn't follow currently agreed formats. This is mainly
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# because rfc4173 does not say anything about iscsi_initiator but open-iscsi's
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# iscsistart needs this.
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#
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. /lib/dracut-lib
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PATH=$PATH:/sbin:/usr/sbin
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# XXX needs error handling like ifup/dhclient-script
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if getarg rdnetdebug; then
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exec > /tmp/iscsiroot.$1.$$.out
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exec 2>> /tmp/iscsiroot.$1.$$.out
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set -x
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fi
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# Huh? Empty $1?
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[ -z "$1" ] && exit 1
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# Huh? Empty $2?
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[ -z "$2" ] && exit 1
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# Huh? Empty $3? This isn't really necessary, since NEWROOT isn't
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# used here. But let's be consistent
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[ -z "$3" ] && exit 1
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# root is in the form root=iscsi:[<servername>]:[<protocol>]:[<port>]:[<LUN>]:<targetname>
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netif="$1"
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root="$2"
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# read static conf settings
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for conf in conf/conf.d/*; do
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[ -f ${conf} ] && . ${conf}
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done
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modprobe iscsi_tcp
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modprobe crc32c
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if getarg iscsi_firmware ; then
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iscsistart -b
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exit 0
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fi
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# override conf settings by command line options
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arg=$(getarg iscsi_initiator)
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[ -n "$arg" ] && iscsi_initiator=$arg
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arg=$(getarg iscsi_target_name)
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[ -n "$arg" ] && iscsi_target_name=$arg
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arg=$(getarg iscsi_target_ip)
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[ -n "$arg" ] && iscsi_target_ip=$arg
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arg=$(getarg iscsi_target_port)
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[ -n "$arg" ] && iscsi_target_port=$arg
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arg=$(getarg iscsi_target_group)
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[ -n "$arg" ] && iscsi_target_group=$arg
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arg=$(getarg iscsi_username)
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[ -n "$arg" ] && iscsi_username=$arg
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arg=$(getarg iscsi_password)
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[ -n "$arg" ] && iscsi_password=$arg
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arg=$(getarg iscsi_in_username)
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[ -n "$arg" ] && iscsi_in_username=$arg
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arg=$(getarg iscsi_in_password)
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[ -n "$arg" ] && iscsi_in_password=$arg
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if [ $root = ${root#iscsi:} ]; then
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iroot=$(getarg iscsiroot)
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else
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iroot=${root#iscsi:}
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fi
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# override conf/commandline options by dhcp root_path
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# FIXME this assumes that all values have been provided
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OLDIFS="$IFS"
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IFS=:
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set $iroot
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iscsi_target_ip=$1; shift
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iscsi_protocol=$1; shift # ignored
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iscsi_target_port=$1; shift
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iscsi_lun=$1; shift
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iscsi_target_name=$*
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IFS="$OLDIFS"
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# XXX is this needed?
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getarg ro && iscsirw=ro
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getarg rw && iscsirw=rw
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fsopts=${fsopts+$fsopts,}${iscsirw}
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if [ -z $iscsi_initiator ]; then
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# XXX Where are these from?
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[ -f /etc/initiatorname.iscsi ] && . /etc/initiatorname.iscsi
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[ -f /etc/iscsi/initiatorname.iscsi ] && . /etc/iscsi/initiatorname.iscsi
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iscsi_initiator=$InitiatorName
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# XXX rfc3720 says 'SCSI Initiator Name: The iSCSI Initiator Name specifies
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# the worldwide unique name of the initiator.' Could we use hostname/ip
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# if missing?
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fi
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if [ -z $iscsi_target_port ]; then
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iscsi_target_port=3260
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fi
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if [ -z $iscsi_target_group ]; then
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iscsi_target_group=1
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fi
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if [ -z $iscsi_initiator ]; then
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# XXX is this correct?
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iscsi_initiator=$(iscsi-iname)
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fi
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echo "InitiatorName='$iscsi_initiator'" > /dev/.initiatorname.iscsi
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# FIXME $iscsi_lun?? $iscsi_protocol??
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iscsistart -i $iscsi_initiator -t $iscsi_target_name \
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-g $iscsi_target_group -a $iscsi_target_ip \
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-p $iscsi_target_port \
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${iscsi_username+-u $iscsi_username} \
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${iscsi_password+-w $iscsi_password} \
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${iscsi_in_username+-U $iscsi_in_username} \
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${iscsi_in_password+-W $iscsi_in_password}
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# now we have a root filesystem somewhere in /dev/sda*
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# let the normal block handler handle root=
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exit 0
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