DEVICE_ALLOCATE(4) File Formats and Configurations DEVICE_ALLOCATE(4)


NAME


device_allocate - device_allocate file

SYNOPSIS


/etc/security/device_allocate


DESCRIPTION


The device_allocate file is an ASCII file that resides in the
/etc/security directory. It contains mandatory access control information
about each physical device. Each device is represented by a one- line
entry of the form:


device-name;device-type;reserved1;reserved2;auths;device-e xec


where:

device-name

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


device-type

Represents 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.
The following types of devices are currently managed by the system:
audio, sr (represents CDROM drives), fd (represents floppy drives),
st (represents tape drives), rmdisk (removable media devices).


reserved1

On systems configured with Trusted Extensions, this field stores a
colon-separated (:) list of key-value pairs that describe device
allocation attributes used in Trusted Extensions. Zero or more keys
can be specified. The following keys are currently interpreted by
Trusted Extensions systems:

minlabel

Specifies the minimum label at which device can be allocated.
Default value is admin_low.


maxlabel

Specifies the maximum label at which device can be allocated.
Default value is admin_high.


zone

Specifies the name of the zone in which device is currently
allocated.


class

Specifies a logical grouping of devices. For example, all Sun
Ray devices of all device types. There is no default class.


xdpy

Specifies the X display name. This is used to identify devices
associated with that X session. There is no default xdpy value.


reserved2

Represents a field reserved for future use.


auths

Represents a field that contains a comma-separated list of
authorizations required to allocate the device, an asterisk (*) to
indicate that the device is not allocatable, or an '@' symbol to
indicate that no explicit authorization is needed to allocate the
device. The default authorization is solaris.device.allocate. See
auths(1).


device-exec

The physical device's data clean program to be run any time the
device is acted on by allocate(1). This ensures that unmanaged data
does not remain in the physical device between uses. This field
contains the filename of a program in /etc/security/lib or the full
pathname of a cleanup script provided by the system administrator.


Notes on device_allocate
The device_allocate file is an ASCII file that resides in the
/etc/security directory.


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


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


White space is allowed in any field.


The device_allocate file must be created by the system administrator
before device allocation is enabled.


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

EXAMPLES


Example 1: Declaring an Allocatable Device




Declare that physical device st0 is a type st. st is allocatable, and the
script used to clean the device after running deallocate(1) is named
/etc/security/lib/st_clean.


# scsi tape
st0;\
st;\
reserved;\
reserved;\
solaris.device.allocate;\
/etc/security/lib/st_clean


Example 2: Declaring an Allocatable Device with Authorizations




Declare that physical device fd0 is of type fd. fd is allocatable by
users with the solaris.device.allocate authorization, and the script used
to clean the device after running deallocate(1) is named
/etc/security/lib/fd_clean.


# floppy drive
fd0;\
fd;\
reserved;\
reserved;\
solaris.device.allocate;\
/etc/security/lib/fd_clean


Making a device allocatable means that you need to allocate and
deallocate it to use it (with allocate(1) and deallocate(1)). If a device
is not allocatable, there is an asterisk (*) in the auths field, and no
one can use the device.

FILES


/etc/security/device_allocate

Contains list of allocatable devices


ATTRIBUTES


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


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

SEE ALSO


auths(1), allocate(1), deallocate(1), list_devices(1), auth_attr(4),
attributes(5)

NOTES


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


March 6, 2017 DEVICE_ALLOCATE(4)