108 lines
2.8 KiB
Bash
Executable File
108 lines
2.8 KiB
Bash
Executable File
#!/bin/sh /etc/rc.common
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START=91
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STOP=10
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EXTRA_COMMANDS="show"
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EXTRA_HELP=" show Show current configuration of tgtd"
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NAME=tgt
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PROG=/usr/sbin/tgtd
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USE_PROCD=1
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tgtadm="/usr/sbin/tgtadm --lld iscsi"
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handle_lun() {
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local tgt_lun=$1
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local tgtid=$2
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local ro device type bstype sync direct
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local my_tgtid=${tgt_lun%_*}
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local lun=${tgt_lun#*_}
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[ $my_tgtid -eq $tgtid ] || return 0
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config_get device $1 device ""
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[ "$device" ] || return 1
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config_get type $1 type disk
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config_get bstype $1 bstype rdwr
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config_get_bool readonly $1 readonly 0
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config_get_bool sync $1 sync 0
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config_get_bool direct $1 direct 0
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if [ $sync -ne 0 -o $direct -ne 0 ]; then
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local bsoflags
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[ $sync -ne 0 ] && bsoflags="sync"
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[ $direct -ne 0 ] && bsoflags="direct"
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[ $sync -ne 0 -a $direct -ne 0 ] && bsoflags="sync:direct"
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bsoflags="--bsoflags $bsoflags"
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fi
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local _tgtadm="$tgtadm --mode logicalunit --tid $tgtid --lun $lun"
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$_tgtadm --op new --backing-store $device --device-type $type --bstype $bstype --bstype $bstype $bsoflags || return 1
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$_tgtadm --op update --param readonly=$readonly || return 1
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}
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handle_account() {
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local tgtid=$2
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local _tgtadm="$tgtadm --mode account"
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local target user password outgoing
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config_get target $1 target ""
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[ "$target" ] || return 1
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[ $target -eq $tgtid ] || return 0
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config_get user $1 user ""
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[ "$user" ] || return 1
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config_get password $1 password ""
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config_get_bool outgoing $1 outgoing 0
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[ "$outgoing" -ne 0 ] && outgoing=--outgoing || outgoing=""
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$_tgtadm --op new --user "$user" --password "$password" || return 1
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$_tgtadm --op bind --tid $tgtid --user "$user" $outgoing || return 1
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}
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handle_target() {
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local tgtid=$1
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local tgtname allow
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local _tgtadm="$tgtadm --mode target"
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[ $tgtid -ge 0 ] || return 1
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config_get tgtname $1 name iqn.2012-06.org.openwrt
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config_get allow $1 allow ALL
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$_tgtadm --op new --tid $tgtid --targetname $tgtname || return 1
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$_tgtadm --op bind --tid $tgtid -I $allow || return 1
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config_foreach handle_lun lun $tgtid || return 1
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config_foreach handle_account account $tgtid || return 1
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}
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configure() {
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config_load $NAME
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$tgtadm --mode sys --op update --name State -v offline || return 1
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config_foreach handle_target target || return 1
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$tgtadm --mode sys --op update --name State -v ready || return 1
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return 0
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}
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start_service() {
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procd_open_instance
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procd_set_param command $PROG -f
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procd_set_param respawn
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procd_close_instance
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logger -t $NAME -s "Configuration will be loaded in seconds"
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( sleep 5; configure || { stop_service; exit 1; } ) &
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}
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stop_service() {
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$tgtadm --mode sys --op update --name State -v offline
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$tgtadm --mode target --op show \
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| awk '$1 == "Target" {sub(/:/,"",$2); print $2}' \
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| xargs -n1 $tgtadm --mode target --op delete --force --tid
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$tgtadm --mode sys --op delete
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}
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show() {
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$tgtadm --mode target --op show
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}
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