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Editing: nlctrl.rst

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.. SPDX-License-Identifier: GPL-2.0
.. NOTE: This document was auto-generated.

.. _netlink-nlctrl:

=======================================
Family ``nlctrl`` netlink specification
=======================================

.. contents:: :depth: 3

-------
Summary
-------

genetlink meta-family that exposes information about all genetlink
families registered in the kernel (including itself).

----------
Operations
----------

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.. _nlctrl-operation-getfamily:

getfamily
=========
Get / dump genetlink families

:attribute-set: :ref:`nlctrl-attribute-set-ctrl-attrs`
:do:
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**request**
        :attributes: [``family-name``]

**reply**
        :attributes: [``family-id``, ``family-name``, ``hdrsize``, ``maxattr``, ``mcast-groups``, ``ops``, ``version``]

:dump:
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**reply**
        :attributes: [``family-id``, ``family-name``, ``hdrsize``, ``maxattr``, ``mcast-groups``, ``ops``, ``version``]

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.. _nlctrl-operation-getpolicy:

getpolicy
=========
Get / dump genetlink policies

:attribute-set: :ref:`nlctrl-attribute-set-ctrl-attrs`
:dump:
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**request**
        :attributes: [``family-name``, ``family-id``, ``op``]

**reply**
        :attributes: [``family-id``, ``op-policy``, ``policy``]

-----------
Definitions
-----------

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.. _nlctrl-definition-op-flags:

op-flags
========
:type: flags
:enum-name: None

:entries:
    - ``admin-perm``
    - ``cmd-cap-do``
    - ``cmd-cap-dump``
    - ``cmd-cap-haspol``
    - ``uns-admin-perm``

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.. _nlctrl-definition-attr-type:

attr-type
=========
:enum-name: netlink-attribute-type
:type: enum

:entries:
    - ``invalid``
    - ``flag``
    - ``u8``
    - ``u16``
    - ``u32``
    - ``u64``
    - ``s8``
    - ``s16``
    - ``s32``
    - ``s64``
    - ``binary``
    - ``string``
    - ``nul-string``
    - ``nested``
    - ``nested-array``
    - ``bitfield32``
    - ``sint``
    - ``uint``

--------------
Attribute sets
--------------

.. _nlctrl-attribute-set-ctrl-attrs:

ctrl-attrs
==========
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family-id (``u16``)
~~~~~~~~~~~~~~~~~~~

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family-name (``string``)
~~~~~~~~~~~~~~~~~~~~~~~~

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version (``u32``)
~~~~~~~~~~~~~~~~~

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hdrsize (``u32``)
~~~~~~~~~~~~~~~~~

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maxattr (``u32``)
~~~~~~~~~~~~~~~~~

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ops (``indexed-array``)
~~~~~~~~~~~~~~~~~~~~~~~
:sub-type: nest
:nested-attributes: :ref:`nlctrl-attribute-set-op-attrs`

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mcast-groups (``indexed-array``)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
:sub-type: nest
:nested-attributes: :ref:`nlctrl-attribute-set-mcast-group-attrs`

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policy (``nest-type-value``)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
:type-value: ['policy-id', 'attr-id']
:nested-attributes: :ref:`nlctrl-attribute-set-policy-attrs`

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op-policy (``nest-type-value``)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
:type-value: ['op-id']
:nested-attributes: :ref:`nlctrl-attribute-set-op-policy-attrs`

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op (``u32``)
~~~~~~~~~~~~

.. _nlctrl-attribute-set-mcast-group-attrs:

mcast-group-attrs
=================
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name (``string``)
~~~~~~~~~~~~~~~~~

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id (``u32``)
~~~~~~~~~~~~

.. _nlctrl-attribute-set-op-attrs:

op-attrs
========
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id (``u32``)
~~~~~~~~~~~~

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flags (``u32``)
~~~~~~~~~~~~~~~
:enum: :ref:`nlctrl-definition-op-flags`
:enum-as-flags: True

.. _nlctrl-attribute-set-policy-attrs:

policy-attrs
============
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type (``u32``)
~~~~~~~~~~~~~~
:enum: :ref:`nlctrl-definition-attr-type`

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min-value-s (``s64``)
~~~~~~~~~~~~~~~~~~~~~

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max-value-s (``s64``)
~~~~~~~~~~~~~~~~~~~~~

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min-value-u (``u64``)
~~~~~~~~~~~~~~~~~~~~~

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max-value-u (``u64``)
~~~~~~~~~~~~~~~~~~~~~

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min-length (``u32``)
~~~~~~~~~~~~~~~~~~~~

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max-length (``u32``)
~~~~~~~~~~~~~~~~~~~~

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policy-idx (``u32``)
~~~~~~~~~~~~~~~~~~~~

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policy-maxtype (``u32``)
~~~~~~~~~~~~~~~~~~~~~~~~

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bitfield32-mask (``u32``)
~~~~~~~~~~~~~~~~~~~~~~~~~

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mask (``u64``)
~~~~~~~~~~~~~~

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pad (``pad``)
~~~~~~~~~~~~~

.. _nlctrl-attribute-set-op-policy-attrs:

op-policy-attrs
===============
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do (``u32``)
~~~~~~~~~~~~

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dump (``u32``)
~~~~~~~~~~~~~~

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