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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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+
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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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+
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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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+
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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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+
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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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+
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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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-
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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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-
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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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-
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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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+
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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
преди 10 години