genl-ctrl-list(8) System Manager's Manual genl-ctrl-list(8)

# [NAME](#NAME)

genl-ctrl-list - List available kernel-side Generic Netlink families

# [SYNOPSIS](#SYNOPSIS)

**genl-ctrl-list \[-d]**

# [DESCRIPTION](#DESCRIPTION)

Queries the Generic Netlink controller in kernel and prints a list of all registered Generic Netlink families including the version of the interface that has been registered.

# [OPTIONS](#OPTIONS)

[**-h** or **--help**](#h)

Print help text to console and exit.

[**-v** or **--version**](#v)

Print versioning information to console and exit.

[**-d** or **--details**](#d)

Include additional detailed information for each Generic Netlink family that is printed.

The information includes:

[**hdrsize N**](#hdrsize)

The size of the user specific header.

[**maxattr N**](#maxattr)

The maximum Netlink attribute identifier expected by the interface.

[**op NAME (ID) <FLAGS>**](#op)

A list of available operations including their name, numeric identifier and the flags indicating the capabilities of the opertion.

Available flags:

[*admin-perm*](#admin-perm)

Requires administrative privileges

[*has-doit*](#has-doit)

Command can handle request

[*has-dump*](#has-dump)

Command can handle a dump request

[*has-policy*](#has-policy)

Command enforces attribute validation policy

[**grp NAME (ID)**](#grp)

A list of registered multicast groups including name (if available) and identifier.

**Example:**

0x0010 nlctrl version 2

hdrsize 0 maxattr 7

op GETFAMILY (0x03) <has-doit,has-dump,has-policy>

grp notify (0x10)

# [EXAMPLE](#EXAMPLE)

$ genl-ctrl-list

0x0010 nlctrl version 2

0x0011 NLBL\_MGMT version 3

0x0012 NLBL\_CIPSOv4 version 3

0x0013 NLBL\_UNLBL version 3

0x0014 acpi\_event version 1

0x0015 thermal\_event version 1

0x0016 VFS\_DQUOT version 1

0x0017 TASKSTATS version 1

0x0018 NET\_DM version 2

# [AUTHOR](#AUTHOR)

Thomas Graf is the original author and current maintainer of libnl and libnl tools. Many people have contributed to it since.

20 April 2012 libnl

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Document: genl-ctrl-list(8) from libnl3 3.12.0-r7 (Chainguard OS)
Source: https://github.com/thom311/libnl.git