DEVICE_MAPS(5) File Formats and Configurations DEVICE_MAPS(5)

NAME

device_maps - device_maps file

SYNOPSIS

/etc/security/device_maps

DESCRIPTION

The device_maps file contains access control information about each
physical device. Each device is represented by a one line entry of
the form:

device-name : device-type : device-list :


where

device-name

This is an arbitrary ASCII string naming the physical device.
This field contains no embedded white space or non-printable
characters.


device-type

This is an arbitrary ASCII string naming the generic device type.
This field identifies and groups together devices of like type.
This field contains no embedded white space or non-printable
characters.


device-list

This is a list of the device special files associated with the
physical device. This field contains valid device special file
path names separated by white space.


The device_maps file is an ASCII file that resides in the
/etc/security directory.


Lines in device_maps can end with a `\' to continue an entry on the
next line.


Comments may also be included. A `#' makes a comment of all further
text until the next NEWLINE not immediately preceded by a `\'.


Leading and trailing blanks are allowed in any of the fields.


The device_maps file must be created by the system administrator
bef\ore device allocation is enabled.


This file is owned by root, with a group of sys, and a mode of 0644.

EXAMPLES

Example 1: A Sample device_maps File

The following is a sample device_maps file:


# scsi tape
st1:\
rmt:\
/dev/rst21 /dev/nrst21 /dev/rst5 /dev/nrst5 /dev/rst13 \
/dev/nrst13 /dev/rst29 /dev/nrst29 /dev/rmt/1l /dev/rmt/1m \
/dev/rmt/1 /dev/rmt/1h /dev/rmt/1u /dev/rmt/1ln /dev/rmt/1mn \
/dev/rmt/1n /dev/rmt/1hn /dev/rmt/1un /dev/rmt/1b /dev/rmt/1bn:\

FILES

/etc/security/device_maps
Contains access control information for
devices.

ATTRIBUTES

See attributes(7) for descriptions of the following attributes:


+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Interface Stability | Uncommitted |
+--------------------+-----------------+

SEE ALSO

allocate(1), deallocate(1), list_devices(1), device_allocate(5),
attributes(7), dminfo(8)

NOTES

On systems configured with Trusted Extensions, the functionality is
enabled by default. On such systems, the device_allocate(5) file is
updated automatically by the system.

March 6, 2017 DEVICE_MAPS(5)