DEVICE_MAPS(4) File Formats and Configurations DEVICE_MAPS(4)


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(5) for descriptions of the following attributes:


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

SEE ALSO


allocate(1), deallocate(1), list_devices(1), dminfo(1M),
device_allocate(4), attributes(5)

NOTES


On systems configured with Trusted Extensions, the functionality is
enabled by default. On such systems, the device_allocate(4) file is
updated automatically by the system.


March 6, 2017 DEVICE_MAPS(4)