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@ -10,23 +10,45 @@ 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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logger="logger -p daemon.err -s -t $NAME" |
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validate_lun_section() { |
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uci_validate_section tgt lun $1 \ |
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'device:file' \ |
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'type:or("disk", "cd", "pt"):disk' \ |
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'bstype:or("rdwr", "aio", "sg"):rdwr' \ |
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'sync:bool:0' \ |
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'direct:bool:0' \ |
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'blocksize:uinteger' \ |
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'mode_page:string' \ |
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'product_id:string' \ |
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'product_rev:string' \ |
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'readonly:bool:0' \ |
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'removable:bool' \ |
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'scsi_id:string' \ |
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'scsi_sn:string' \ |
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'sense_format:range(0, 1)' \ |
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'vendor_id:string' |
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} |
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handle_lun() { |
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local tgt_lun=$1 |
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local tgtid=$2 |
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local ro device type bstype sync direct |
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local readonly device type bstype sync direct |
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local my_tgtid=${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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validate_lun_section $tgt_lun || { |
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$logger "Validation failed for LUN $tgt_lun" |
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return 1 |
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} |
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[ "$device" ] || { |
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$logger "Device is required for target $tgt_lun" |
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return 1 |
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} |
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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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@ -35,70 +57,173 @@ handle_lun() { |
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bsoflags="--bsoflags $bsoflags" |
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fi |
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blocksize=${blocksize+--blocksize=$blocksize} |
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local params='' i |
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for i in mode_page product_id product_rev readonly removable scsi_id scsi_sn sense_format vendor_id; do |
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eval params=\${$i+$i=\$$i,}\$params |
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done |
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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=$readonly || return 1 |
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$_tgtadm --op new --backing-store $device --device-type $type --bstype $bstype --bstype $bstype $bsoflags $blocksize || { |
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$logger "Failed to create lun $tgt_lun" |
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return 1 |
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} |
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$_tgtadm --op update --param $params || { |
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$logger "Failed to update lun $tgt_lun" |
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return 1 |
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} |
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} |
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validate_account_section () { |
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uci_validate_section tgt account $1 \ |
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'target:list(uinteger)' \ |
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'user:string' \ |
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'password:string' \ |
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'outgoing:bool:0' |
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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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local user password target outgoing |
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validate_account_section $1 || { |
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$logger "Validation failed for account ${user:-$1}" |
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return 1 |
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} |
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[ "$user" ] || { |
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$logger "User is required for account $1. Run 'uci show tgt.$1' and check options" |
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return 1 |
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} |
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[ "$target" ] || { |
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$logger "Target is required for account $user" |
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return 1 |
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} |
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[ "$password" ] || { |
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$logger "Password is required for account $user" |
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return 1 |
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} |
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$_tgtadm --op new --user "$user" --password "$password" || { |
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$logger "Failed to create user $username" |
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return 1 |
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} |
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} |
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config_get target $1 target "" |
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[ "$target" ] || return 1 |
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[ $target -eq $tgtid ] || return 0 |
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bind_account_to_target() { |
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local _tgtadm="$tgtadm --mode account" |
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local tgtid=$2 user password outgoing |
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config_get user $1 user "" |
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[ "$user" ] || return 1 |
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validate_account_section $1 || { |
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$logger "Validation failed for account ${user:-$1}" |
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return 1 |
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} |
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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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local t |
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for t in $target; do |
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[ "$t" -eq "$tgtid" ] && { |
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$_tgtadm --op bind --tid $tgtid --user "$user" $outgoing || { |
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$logger "Failed to bind user $username to target $tgtid" |
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return 1 |
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} |
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} |
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done |
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return 0 |
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} |
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$_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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validate_target_section() { |
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uci_validate_section tgt target $1 \ |
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'name:string:iqn.2012-06.org.openwrt' \ |
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'allow_address:list(string):ALL' \ |
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'allow_name:list(string)' |
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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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local name allow |
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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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validate_target_section $tgtid || { |
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$logger "Validation failed for target $tgtid" |
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return 1 |
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} |
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$_tgtadm --op new --tid $tgtid --targetname $name || { |
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$logger "Failed to create target $tgtid" |
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return 1 |
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} |
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local i |
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for i in $allow_address; do |
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$_tgtadm --op bind --tid $tgtid --initiator-address $i || { |
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$logger "Failed to set allow $i to connect to target $tgtid" |
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return 1 |
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} |
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done |
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for i in $allow_name; do |
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$_tgtadm --op bind --tid $tgtid --initiator-name $i || { |
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$logger "Failed to set allow $i to connect to target $tgtid" |
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return 1 |
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} |
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done |
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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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config_foreach bind_account_to_target 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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$tgtadm --mode sys --op update --name State -v offline || { |
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$logger "Failed to set system state to Offline" |
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return 1 |
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} |
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config_foreach handle_account account || return 1 |
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config_foreach handle_target target || return 1 |
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$tgtadm --mode sys --op update --name State -v ready || return 1 |
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$tgtadm --mode sys --op update --name State -v ready || { |
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$logger "Failed to set system state to Ready" |
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return 1 |
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} |
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return 0 |
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} |
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validate_tgt_section() { |
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uci_validate_section tgt options $1 \ |
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'iothreads:uinteger' \ |
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'portal:list(string)' \ |
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'nop_interval:uinteger' \ |
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'nop_count:uinteger' |
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} |
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start_service() { |
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local iothreads portal nop_interval nop_count |
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validate_tgt_section tgt || { |
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$logger "Validation failed for tgt options" |
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return 1 |
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} |
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procd_open_instance |
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procd_set_param command $PROG -f |
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[ "$iothreads" ] && procd_append_param command -t $iothreads |
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[ "${portal}${nop_interval}${nop_count}" ] && { |
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local iscsi="" i |
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for i in nop_interval nop_count; do |
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eval iscsi=\${$i+$i=\$$i,}\$iscsi |
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done |
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for i in $portal; do |
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iscsi="portal=$i,$iscsi" |
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done |
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procd_append_param command --iscsi $iscsi |
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} |
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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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logger -p daemon.info -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 update --name State -v offline || { |
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$logger "Failed to set system state to Offline" |
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return 1 |
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} |
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$tgtadm --mode target --op show \ |
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| awk '$1 == "Target" {sub(/:/,"",$2); print $2}' \ |
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| xargs -r -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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Maxim Storchak
11 years ago