STMFSETLUPROP(3STMF) SCSI Target Mode Framework Library Functions


NAME


stmfSetLuProp, stmfGetLuProp - set or get a logical unit property

SYNOPSIS


cc [ flag... ] file... -lstmf [ library... ]
#include <libstmf.h>

int stmfSetLuProp(luResource hdl, uint32_t prop, const char *propVal);


int stmfGetLuProp(luResource hdl, uint32_t prop, char *propVal,
size_t *propLen);


PARAMETERS


hdl
A logical unit resource previously allocated by
stmfCreateLuResource(3STMF) or stmfGetLuResource(3STMF).


prop
A property type value. See DESCRIPTION for valid values.


propVal
A property value.


propLen
The length of the specified property value. If propLen was of
an insufficient size to hold the returned property value,
propLen will contain the required size of the buffer and
STMF_ERROR_INVALID_ARG will be returned.


DESCRIPTION


These functions set or get property values. All property values are
expressed in human-readable form. Boolean properties are expressed in
case insensitive form of "true" or "false". Properties that are
represented by ASCII hexadecimal contain no leading characters to
indicate a base hexadecimal representation (that is, no leading "0x").
The prop argument can be one of the following values:

STMF_LU_PROP_ALIAS

Up to 255 characters representing a user defined name for the device.

Default: Set to file name of backing store.


STMF_LU_PROP_BLOCK_SIZE

Numeric value for block size in bytes in 2^n.

Default: 512


STMF_LU_PROP_COMPANY_ID

Organizational Unique Identifier. 6 hexadecimal ASCII characters
representing the IEEE OUI company id assignment. This will be used to
generate the device identifier (GUID).

Default: 00144F


STMF_LU_PROP_DATA_FILENAME

Character value representing the file name of the backing store
device.

Default: None


STMF_LU_PROP_GUID

ASCII hexadecimal string of 32 characters representing the unique
identifier for the device. This must be of valid 32 hexadecimal ASCII
characters representing a valid NAA Registered Extended Identifier.

Default: Set by framework to a generated value.


STMF_LU_PROP_META_FILENAME

Metadata file name. When specified, will be used to hold the SCSI
metadata for the logical unit.

Default: None. If this value is not specified, the value specified in
STMF_LU_PROP_DATA_FILENAME will be used.


STMF_LU_PROP_MGMT_URL

Up to 1024 characters representing Management Network Address URLs.
More than one URL can be passed using space delimited URLs.


STMF_LU_PROP_PID

Up to 16 characters of product identification that will be reflected
in the Standard INQUIRY data returned for the device.

Default: sSet to COMSTAR.


STMF_LU_PROP_PRODUCT_REV

Up to 4 characters of revision information that will be reflected in
the Standard INQUIRY data returned for the device.

Default: Set to 1.0.


STMF_LU_PROP_SERIAL_NUM

Serial Number. Specifies the SCSI Vital Product Data Serial Number
(page 80h). It is a character value up to 252 bytes in length.

Default: None


STMF_LU_PROP_SIZE

Numeric value w/optional suffix, e.g. 100G, 1T, to specify unit of
size.

Default: Size of the device specified in the
STMF_LU_PROP_DATA_FILENAME property value.


STMF_LU_PROP_VID

8 characters of vendor identification per SCSI SPC-3 and will be
reflected in the Standard INQUIRY data returned for the device.

Default: Set to SUN.


STMF_LU_PROP_WRITE_CACHE_DISABLE

Write back cache disable. When specified as "true" or "false",
specifies write back cache disable behavior.

Default: Writeback cache setting of the backing store device
specified by STMF_LU_PROP_DATA_FILENAME.


STMF_LU_PROP_WRITE_PROTECT

Write protect bit. When specified as "true" or "false", specifies
whether the device behaves as a write protected device.

Default: "false"


RETURN VALUES


The following values are returned:

STMF_STATUS_SUCCESS

The API call was successful.


STMF_ERROR_INVALID_ARG

Either prop or propVal is unrecognized.


STMF_ERROR_INVALID_PROPSIZE

The size of propVal is invalid.


STMF_ERROR_NO_PROP

The value of prop is unknown for this resource type.


ATTRIBUTES


See attributes(5) for descriptions of the following attributes:


+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Interface Stability | Committed |
+--------------------+-----------------+
|MT-Level | Safe |
+--------------------+-----------------+

SEE ALSO


libstmf(3LIB), stmfCreateLuResource(3STMF), stmfGetLuResource(3STMF),
attributes(5)


July 17, 2009 STMFSETLUPROP(3STMF)