FreeNAS Code

Create a shortcut stub for restart("ldap").

Combine collect restarts down into middleware and make it a hook for after
creation and destroy of a volume or dataset.

Rework r7699. As William pointed out, we use the volume form to add disks
into existing ZFS pool and r7699 prevents this from happening.

Instead of blocking pre-existing volume name, distinguish between ZFS and
UFS and instead block the following situations:

Creating ZFS when pre-existing non-ZFS file system under the same name exists;
Creating UFS when pre-existing any file system exists.

Rework r7699. As William pointed out, we use the volume form to add disks
into existing ZFS pool and r7699 prevents this from happening.

Instead of blocking pre-existing volume name, distinguish between ZFS and
UFS and instead block the following situations:

- Creating ZFS when pre-existing non-ZFS file system under the same name
exists;
- Creating UFS when pre-existing any file system exists.

Reviewed by: william

Combine collect restarts down into middleware and make it a hook for after
creation and destroy of a volume or dataset.

Add preliminary code to support resetting freenas:state attribute when deleting
a replication.

Volume name should be unique.

restrict iscsi target name

restrict extents in TargetToExtent (extents cannot be used twice)

use FilteringSelect for TargetToExtent as it is aware of screen size and can scroll properly