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215 lines
6.5 KiB
215 lines
6.5 KiB
#!/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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type getarg >/dev/null 2>&1 || . /lib/dracut-lib.sh |
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type parse_iscsi_root >/dev/null 2>&1 || . /lib/net-lib.sh |
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type write_fs_tab >/dev/null 2>&1 || . /lib/fs-lib.sh |
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PATH=/usr/sbin:/usr/bin:/sbin:/bin |
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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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iroot="$2" |
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# If it's not iscsi we don't continue |
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[ "${iroot%%:*}" = "iscsi" ] || exit 1 |
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iroot=${iroot#iscsi} |
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iroot=${iroot#:} |
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# XXX modprobe crc32c should go in the cmdline parser, but I haven't yet |
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# figured out a way how to check whether this is built-in or not |
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modprobe crc32c 2>/dev/null |
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if [ -e /sys/module/bnx2i ] && ! [ -e /tmp/iscsiuio-started ]; then |
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iscsiuio |
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> /tmp/iscsiuio-started |
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fi |
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handle_firmware() |
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{ |
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if ! [ -e /tmp/iscsistarted-firmware ]; then |
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if ! iscsistart -f; then |
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warn "iscistart: Could not get list of targets from firmware." |
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return 1 |
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fi |
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for p in $(getargs rd.iscsi.param -d iscsi_param); do |
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iscsi_param="$iscsi_param --param $p" |
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done |
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if ! iscsistart -b $iscsi_param; then |
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warn "'iscsistart -b $iscsi_param' failed" |
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fi |
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if [ -d /sys/class/iscsi_session ]; then |
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echo 'started' > "/tmp/iscsistarted-iscsi:" |
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echo 'started' > "/tmp/iscsistarted-firmware" |
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else |
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return 1 |
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fi |
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need_shutdown |
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fi |
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return 0 |
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} |
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handle_netroot() |
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{ |
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local iscsi_initiator iscsi_target_name iscsi_target_ip iscsi_target_port |
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local iscsi_target_group iscsi_protocol iscsirw iscsi_lun |
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local iscsi_username iscsi_password |
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local iscsi_in_username iscsi_in_password |
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local iscsi_iface_name iscsi_netdev_name |
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local iscsi_param |
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local p |
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# override conf settings by command line options |
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arg=$(getarg rd.iscsi.initiator -d iscsi_initiator=) |
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[ -n "$arg" ] && iscsi_initiator=$arg |
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arg=$(getarg rd.iscsi.target.name -d iscsi_target_name=) |
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[ -n "$arg" ] && iscsi_target_name=$arg |
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arg=$(getarg rd.iscsi.target.ip -d iscsi_target_ip) |
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[ -n "$arg" ] && iscsi_target_ip=$arg |
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arg=$(getarg rd.iscsi.target.port -d iscsi_target_port=) |
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[ -n "$arg" ] && iscsi_target_port=$arg |
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arg=$(getarg rd.iscsi.target.group -d iscsi_target_group=) |
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[ -n "$arg" ] && iscsi_target_group=$arg |
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arg=$(getarg rd.iscsi.username -d iscsi_username=) |
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[ -n "$arg" ] && iscsi_username=$arg |
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arg=$(getarg rd.iscsi.password -d iscsi_password) |
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[ -n "$arg" ] && iscsi_password=$arg |
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arg=$(getarg rd.iscsi.in.username -d iscsi_in_username=) |
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[ -n "$arg" ] && iscsi_in_username=$arg |
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arg=$(getarg rd.iscsi.in.password -d iscsi_in_password=) |
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[ -n "$arg" ] && iscsi_in_password=$arg |
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for p in $(getargs rd.iscsi.param -d iscsi_param); do |
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iscsi_param="$iscsi_param --param $p" |
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done |
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parse_iscsi_root "$1" || return 1 |
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# XXX is this needed? |
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getarg ro && iscsirw=ro |
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getarg rw && iscsirw=rw |
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fsopts=${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 $iscsi_initiator ]; then |
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if [ -f /sys/firmware/ibft/initiator/initiator-name ]; then |
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iscsi_initiator=$(while read line; do echo $line;done < /sys/firmware/ibft/initiator/initiator-name) |
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fi |
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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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if [ -z $iscsi_lun ]; then |
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iscsi_lun=0 |
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fi |
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echo "InitiatorName='$iscsi_initiator'" > /run/initiatorname.iscsi |
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ln -fs /run/initiatorname.iscsi /dev/.initiatorname.iscsi |
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# FIXME $iscsi_protocol?? |
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if [ "$root" = "dhcp" ]; then |
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# if root is not specified try to mount the whole iSCSI LUN |
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printf 'SYMLINK=="disk/by-path/*-iscsi-*-%s", SYMLINK+="root"\n' $iscsi_lun >> /etc/udev/rules.d/99-iscsi-root.rules |
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udevadm control --reload |
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write_fs_tab /dev/root |
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wait_for_dev -n /dev/root |
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# install mount script |
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[ -z "$DRACUT_SYSTEMD" ] && \ |
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echo "iscsi_lun=$iscsi_lun . /bin/mount-lun.sh " > $hookdir/mount/01-$$-iscsi.sh |
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fi |
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# force udevsettle to break |
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> $hookdir/initqueue/work |
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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 $iscsi_in_password} \ |
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${iscsi_iface_name:+--param iface.iscsi_ifacename=$iscsi_iface_name} \ |
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${iscsi_netdev_name:+--param iface.net_ifacename=$iscsi_netdev_name} \ |
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${iscsi_param} \ |
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|| : |
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netroot_enc=$(str_replace "$1" '/' '\2f') |
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echo 'started' > "/tmp/iscsistarted-iscsi:${netroot_enc}" |
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} |
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ret=0 |
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# loop over all netroot parameter |
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if getarg netroot; then |
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for nroot in $(getargs netroot); do |
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[ "${nroot%%:*}" = "iscsi" ] || continue |
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nroot="${nroot##iscsi:}" |
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if [ -n "$nroot" ]; then |
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handle_netroot "$nroot" |
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ret=$(($ret + $?)) |
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fi |
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done |
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if getargbool 0 rd.iscsi.firmware -d -y iscsi_firmware ; then |
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handle_firmware |
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ret=$(($ret + $?)) |
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fi |
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else |
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if [ -n "$iroot" ]; then |
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handle_netroot "$iroot" |
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ret=$? |
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else |
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if getargbool 0 rd.iscsi.firmware -d -y iscsi_firmware ; then |
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handle_firmware |
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ret=$? |
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fi |
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fi |
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fi |
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need_shutdown |
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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 $ret
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