libstmf - SCSI Target Mode Framework library
cc [ flag... ] file... -lstmf [ library... ]
Functions in this library provide configuration management of the
SCSI Target Mode Framework (STMF), allowing clients to manage the
provisioning of logical units and targets to the initiator clients of the
A Host Group is a set of one or more initiator ports that
are combined together for the purposes of applying access controls to a
Logical Unit object and assigning a logical unit number to the Logical Unit.
The assigned logical unit number will be reported to the members of that Host
Group via the SCSI REPORT LUN command. Host Groups can contain initiator ports
that are not visible to the SCSI Target Mode Framework. Initiator ports might
not be a member in more than one group. A Host Group is associated with a
given Logical Unit via a view entry. Host Group names are unique within the
A Logical Unit object is provided to the SCSI Target Mode
Framework for the purposes of executing SCSI commands. Library clients can
manage a Logical Unit object's accessibility to one or more SCSI initiator
clients. libstmf library clients cannot add or remove Logical Unit
objects from the system. Every Logical Unit object within the SCSI Target Mode
Framework is owned by a logical unit provider whose identity is available via
the properties on the Logical Unit object.
Logical Unit Number
A Logical Unit Number is the SCSI identifier of a logical
unit within a target.
A Target port object is provided to the SCSI Target Mode
Framework for the purposes of receiving SCSI commands on a particular logical
unit. Library clients can manage a Logical Unit object's availability to one
or more Target port objects. Library clients cannot add or remove Target
objects from the system. Every Target port object within the SCSI Target Mode
Framework is owned by a Local Port provider whose identity is available via
the properties on the Target port object.
Target Port Group
A Target Port Group is a set of one or more Target ports
that are combined together for the purposes of applying availability to a
Logical Unit object. A Target Port Group may be applied to any given Logical
Unit via a view entry. Target ports may not be a member in more than one
Target Port Group. Target Port Group names are unique within the
A View is a list of logical units exposed to a list of
initiator ports through a list of targets.
A View Entry object defines the association of an host
group, a target group and a logical unit number with a specified logical unit.
When a view entry is created for a logical unit, a caller can assign all
targets and/or all initiator ports to the logical unit thus making the logical
unit accessible to all target ports and/or all initiator ports. A logical unit
may have one or more view entries associated with it. Any two view entries are
considered to be in conflict when an attempt is made to duplicate the
association of any given initiator port, target port and logical unit.
Attempting this will result in an error returned from the call to
The shared object libstmf.so.1 provides the public
interfaces defined below. See Intro(3) for additional information on
shared object interfaces.
64-bit shared object
See attributes(7) for descriptions of the following